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Hurricane Nicholas Public Advisory Number 8
2021-09-14 05:25:18| National Hurricane Center (Atlantic)
Issued at 1000 PM CDT Mon Sep 13 2021 000 WTNT34 KNHC 140324 CCA TCPAT4 BULLETIN Hurricane Nicholas Advisory Number 8...Corrected NWS National Hurricane Center Miami FL AL142021 1000 PM CDT Mon Sep 13 2021 Corrected for Tropical Storm Warning Summary ...NICHOLAS BECOMES A HURRICANE... ...BRINGING HEAVY RAINS, STRONG WINDS, AND STORM SURGES TO PORTIONS OF THE CENTRAL AND UPPER TEXAS COASTS... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...28.4N 95.8W ABOUT 20 MI...30 KM SE OF MATAGORDA TEXAS ABOUT 45 MI...75 KM SW OF FREEPORT TEXAS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Watch south of Port O'Connor Texas, is discontinued, and the Tropical Storm Warning south of Port Aransas, Texas, is discontinued. The Hurricane Watch from Port O'Connor north to Freeport, Texas has been upgraded to a Hurricane Warning. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Aransas Texas to Sabine Pass * Galveston Bay, Aransas Bay, San Antonio Bay, and Matagorda Bay A Hurricane Warning is in effect for... * Port O'Connor to Freeport Texas A Hurricane Watch is in effect for... * Freeport to San Luis Pass Texas A Tropical Storm Warning is in effect for... * North of Port Aransas to Port O'Connor * North of Freeport to Sabine Pass A Storm Surge Watch is in effect for... * Sabine Pass to Rutherford Beach Louisiana A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in southwestern Louisiana should monitor the progress of Nicholas. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 1000 PM CDT (0300 UTC), the center of Hurricane Nicholas was located near latitude 28.4 North, longitude 95.8 West. Nicholas is moving toward the north-northeast near 10 mph (17 km/h) and this general motion is expected to continue through tonight, followed by a turn toward the northeast and a slower motion by late Tuesday and an even slower eastward motion on Wednesday. On the forecast track, the center of Nicholas is expected to make landfall along the Texas coast in a few hours, move over extreme southeastern Texas on Tuesday and early Wednesday, and over southwestern Louisiana later on Wednesday. Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Little change in strength is likely before landfall, followed by weakening after the center moves inland. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). A Weatherflow station at Matagorda Bay recently reported a 1-minute sustained wind of 76 mph (122 km/h) gusting to 95 mph (153 km/h). The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nicholas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC and on the web at hurricanes.gov/graphics_at4.shtml?key_messages RAINFALL: Nicholas is expected to produce storm total rainfall of 6 to 12 inches, with isolated maximum amounts of 18 inches, across the upper Texas coastal areas into Wednesday. Life-threatening flash flooding impacts, especially in urbanized metropolitan areas, are possible across portions of the upper Texas Gulf Coast into far southwestern Louisiana. Across interior southeast Texas into southern-central Louisiana and southern Mississippi, rainfall totals of 4 to 8 inches with locally higher amounts near 10 inches are expected into Thursday. This rainfall may produce areas of considerable flash and urban flooding. The potential for minor to isolated major river flooding exists across the entire region especially in smaller river basins and urban areas. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Port O'Connor, TX to High Island, TX...3-5 ft Matagorda Bay and Galveston Bay...3-5 ft High Island, TX to Rutherford Beach, LA...2-4 ft Port Aransas, TX to Port O'Connor, TX...2-4 ft Aransas Bay and San Antonio Bay...2-4 ft Rutherford Beach, LA to Intracoastal City, LA...1-3 ft Sabine Lake and Calcasieu Lake...1-3 ft Baffin Bay to Port Aransas, TX...1-3 ft Corpus Christi Bay...1-3 ft Mouth of the Rio Grande to Baffin Bay...1-2 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are expected within the warning area across the central and upper Texas coasts through tonight. Hurricane conditions are possible in the Hurricane Watch area for the next few hours. Hurricane conditions are expected in the warning area for the next few hours. TORNADOES: A tornado or two will be possible through Tuesday morning along the upper Texas and southwest Louisiana coast. SURF: Swells generated by Nicholas will continue affecting portions of the northwest Gulf coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 AM CDT. Next complete advisory at 400 AM CDT. $$ Forecaster Pasch/Blake/Papin
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Hurricane Nicholas Public Advisory Number 8
2021-09-14 05:04:18| National Hurricane Center (Atlantic)
Issued at 1000 PM CDT Mon Sep 13 2021 459 WTNT34 KNHC 140304 TCPAT4 BULLETIN Hurricane Nicholas Advisory Number 8 NWS National Hurricane Center Miami FL AL142021 1000 PM CDT Mon Sep 13 2021 ...NICHOLAS BECOMES A HURRICANE... ...BRINGING HEAVY RAINS, STRONG WINDS, AND STORM SURGES TO PORTIONS OF THE CENTRAL AND UPPER TEXAS COASTS... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...28.4N 95.8W ABOUT 20 MI...30 KM SE OF MATAGORDA TEXAS ABOUT 45 MI...75 KM SW OF FREEPORT TEXAS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Watch south of Port O'Connor Texas, is discontinued, and the Tropical Storm Warning south of Port Aransas, Texas, is discontinued. The Hurricane Watch from Port O'Connor north to Freeport, Texas has been upgraded to a Hurricane Warning. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Aransas Texas to Sabine Pass * Galveston Bay, Aransas Bay, San Antonio Bay, and Matagorda Bay A Hurricane Warning is in effect for.. * Port O'Connor to Freeport Texas A Hurricane Watch is in effect for... * Freeport to San Luis Pass Texas A Tropical Storm Warning is in effect for... * North of Port Aransas to Sabine Pass A Storm Surge Watch is in effect for... * Sabine Pass to Rutherford Beach Louisiana A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in southwestern Louisiana should monitor the progress of Nicholas. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 1000 PM CDT (0300 UTC), the center of Hurricane Nicholas was located near latitude 28.4 North, longitude 95.8 West. Nicholas is moving toward the north-northeast near 10 mph (17 km/h) and this general motion is expected to continue through tonight, followed by a turn toward the northeast and a slower motion by late Tuesday and an even slower eastward motion on Wednesday. On the forecast track, the center of Nicholas is expected to make landfall along the Texas coast in a few hours, move over extreme southeastern Texas on Tuesday and early Wednesday, and over southwestern Louisiana later on Wednesday. Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Little change in strength is likely before landfall, followed by weakening after the center moves inland. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). A Weatherflow station at Matagorda Bay recently reported a 1-minute sustained wind of 76 mph (122 km/h) gusting to 95 mph (153 km/h). The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nicholas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC and on the web at hurricanes.gov/graphics_at4.shtml?key_messages RAINFALL: Nicholas is expected to produce storm total rainfall of 6 to 12 inches, with isolated maximum amounts of 18 inches, across the upper Texas coastal areas into Wednesday. Life-threatening flash flooding impacts, especially in urbanized metropolitan areas, are possible across portions of the upper Texas Gulf Coast into far southwestern Louisiana. Across interior southeast Texas into southern-central Louisiana and southern Mississippi, rainfall totals of 4 to 8 inches with locally higher amounts near 10 inches are expected into Thursday. This rainfall may produce areas of considerable flash and urban flooding. The potential for minor to isolated major river flooding exists across the entire region especially in smaller river basins and urban areas. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Port O'Connor, TX to High Island, TX...3-5 ft Matagorda Bay and Galveston Bay...3-5 ft High Island, TX to Rutherford Beach, LA...2-4 ft Port Aransas, TX to Port O'Connor, TX...2-4 ft Aransas Bay and San Antonio Bay...2-4 ft Rutherford Beach, LA to Intracoastal City, LA...1-3 ft Sabine Lake and Calcasieu Lake...1-3 ft Baffin Bay to Port Aransas, TX...1-3 ft Corpus Christi Bay...1-3 ft Mouth of the Rio Grande to Baffin Bay...1-2 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are expected within the warning area across the central and upper Texas coasts through tonight. Hurricane conditions are possible in the Hurricane Watch area for the next few hours. Hurricane conditions are expected in the warning area for the next few hours. TORNADOES: A tornado or two will be possible through Tuesday morning along the upper Texas and southwest Louisiana coast. SURF: Swells generated by Nicholas will continue affecting portions of the northwest Gulf coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 AM CDT. Next complete advisory at 400 AM CDT. $$ Forecaster Pasch/Blake/Papin
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Tropical Storm Nicholas Public Advisory Number 7A
2021-09-14 01:58:49| National Hurricane Center (Atlantic)
Issued at 700 PM CDT Mon Sep 13 2021 000 WTNT34 KNHC 132358 TCPAT4 BULLETIN Tropical Storm Nicholas Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL AL142021 700 PM CDT Mon Sep 13 2021 ...NICHOLAS BRINGING HEAVY RAINS, STRONG WINDS, AND STORM SURGES TO PORTIONS OF THE CENTRAL AND UPPER TEXAS COASTS... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...28.1N 96.2W ABOUT 35 MI...60 KM SSW OF MATAGORDA TEXAS MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Aransas Texas to Sabine Pass * Galveston Bay, Aransas Bay, San Antonio Bay, and Matagorda Bay A Hurricane Watch is in effect for... * Port Aransas to San Luis Pass Texas A Tropical Storm Warning is in effect for... * Baffin Bay to Sabine Pass A Storm Surge Watch is in effect for... * Sabine Pass to Rutherford Beach Louisiana A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in southwestern Louisiana should monitor the progress of Nicholas. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 700 PM CDT (0000 UTC), the center of Tropical Storm Nicholas was located near latitude 28.1 North, longitude 96.2 West. Nicholas is moving toward the north-northeast near 12 mph (19 km/h) and this general motion is expected to continue through tonight, followed by a turn toward the northeast by late Tuesday. On the forecast track, the center of Nicholas is expected to make landfall along the central Texas coast later tonight. Maximum sustained winds have increased to near 70 mph (110 km/h) with higher gusts. Some additional strengthening is possible during the next few hours, and Nicholas could become a hurricane when it reaches the Texas coast. Weakening is anticipated on Tuesday and Wednesday while Nicholas moves over land. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. A WeatherFlow station at Matagorda Bay recently reported a sustained wind of 55 mph (89 km/h) with a gust to 71 mph (115 km/h). The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nicholas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC and on the web at hurricanes.gov/graphics_at4.shtml?key_messages RAINFALL: Nicholas is expected to produce storm total rainfall of 6 to 12 inches, with isolated maximum amounts of 18 inches, across portions of the middle and upper Texas coastal areas through Wednesday. Life-threatening flash flooding impacts, especially in highly urbanized metropolitan areas, are possible across portions of the upper Texas Gulf Coast and far southwestern Louisiana. Across interior southeast Texas into southern-central Louisiana and southern Mississippi, rainfall totals of 4 to 8 inches with locally higher amounts near 10 inches are expected through Thursday. This rainfall may produce areas of considerable flash and urban flooding. The potential for minor to isolated moderate river flooding exists across the entire region, along with isolated major river flooding, especially in the smaller river basins and urban areas. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Port O'Connor, TX to San Luis Pass including Matagorda Bay...3-5 ft San Luis Pass to Rutherford Beach, LA including Galveston Bay...2-4 ft Port Aransas, TX to Port O'Connor, TX...2-4 ft Aransas Bay and San Antonio Bay...2-4 ft Rutherford Beach, LA to Intracoastal City, LA...1-3 ft Sabine Lake and Calcasieu Lake...1-3 ft Baffin Bay to Port Aransas, TX...1-3 ft Corpus Christi Bay...1-3 ft Mouth of the Rio Grande to Baffin Bay...1-2 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are expected within the warning area across the central and upper Texas coasts through tonight, making outside preparations difficult or dangerous. Hurricane conditions are possible in the Hurricane Watch area as early as this evening. TORNADOES: A couple of tornadoes will be possible through tonight, mainly along the upper Texas coast. SURF: Swells generated by Nicholas will continue affecting portions of the northwest Gulf coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1000 PM CDT. $$ Forecaster Pasch
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Tropical Storm Nicholas Public Advisory Number 6A
2021-09-13 20:00:09| National Hurricane Center (Atlantic)
Issued at 100 PM CDT Mon Sep 13 2021 000 WTNT34 KNHC 131800 TCPAT4 BULLETIN Tropical Storm Nicholas Intermediate Advisory Number 6A NWS National Hurricane Center Miami FL AL142021 100 PM CDT Mon Sep 13 2021 ...NICHOLAS MOVING ERRATICALLY NORTHWARD JUST OFFSHORE THE SOUTHERN COAST OF TEXAS... ...FLASH FLOODING, DANGEROUS STORM SURGE, AND GUSTY WINDS EXPECTED ALONG PORTIONS OF THE SOUTHERN AND MIDDLE TEXAS COASTS TODAY... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...26.9N 96.5W ABOUT 70 MI...115 KM SSE OF PORT ARANSAS TEXAS ABOUT 105 MI...165 KM S OF PORT OCONNOR TEXAS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Aransas Texas to Sabine Pass * Galveston Bay, Aransas Bay, San Antonio Bay, and Matagorda Bay A Hurricane Watch is in effect for... * Port Aransas to San Luis Pass Texas A Tropical Storm Warning is in effect for... * Mouth of the Rio Grande to Sabine Pass A Storm Surge Watch is in effect for... * Baffin Bay to Port Aransas Texas * Sabine Pass to Rutherford Beach Louisiana * Corpus Christi Bay A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in southwestern Louisiana should monitor the progress of Nicholas. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 PM CDT (1800 UTC), the center of Tropical Storm Nicholas was located by NOAA Doppler weather radars near latitude 26.9 North, longitude 96.5 West. Nicholas is moving toward the north near 12 mph (19 km/h) and this general motion is expected to continue through tonight, followed by a turn toward the north-northeast on Tuesday. On the forecast track, the center of Nicholas will continue to pass just offshore of the coast of south Texas this afternoon and move onshore along the coast of central Texas later this evening. Data from an Air Force Reserve reconnaissance aircraft and NOAA Doppler weather radars indicate that maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Strengthening is forecast this afternoon and evening, and Nicholas could be near hurricane strength when it reaches the northwest Gulf coast. Weakening is anticipated on Tuesday and Wednesday while Nicholas moves over land. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. During the past few hours, NOAA buoy 42020 located southeast of Corpus Christi, Texas, reported a sustained wind of 49 mph (80 km/h) and a gust to 56 mph (91 km/h). The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nicholas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC and on the web at hurricanes.gov/graphics_at4.shtml?key_messages RAINFALL: Nicholas is expected to produce storm total rainfall of 8 to 16 inches, with isolated maximum amounts of 20 inches, across portions of the middle and upper Texas coastal areas through the middle of the week. Life-threatening, flash and urban flooding impacts are possible, especially across portions of the upper Texas Gulf Coast near Lake Jackson and Freeport, TX Across the rest of southeast Texas into southwest Louisiana rainfall of 5 to 10 inches is expected. This rainfall may produce areas of considerable flash and urban flooding, especially in highly urbanized metropolitan areas. Additionally, there is the potential for isolated minor to moderate river flooding. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Port O'Connor to San Luis Pass TX including Matagorda Bay...3-5 ft San Luis Pass, TX to Rutherford Beach, LA including Galveston Bay...2-4 ft Baffin Bay to Port O'Connor, TX...2-4 ft Corpus Christi Bay, Aransas Bay and San Antonio Bay...2-4 ft Mouth of the Rio Grande to Baffin Bay...1-3 ft Rutherford Beach, LA to Intracoastal City, LA...1-3 ft Sabine Lake and Calcasieu Lake...1-3 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are expected within the warning area in southern Texas through the next few hours. These conditions will spread northward within the warning area through tonight, making outside preparations difficult or dangerous. Hurricane conditions are possible in the Hurricane Watch area as early as this afternoon or this evening. TORNADOES: A couple of tornadoes are possible this afternoon and tonight across the middle and upper Texas coast. SURF: Swells generated by Nicholas will continue affecting portions of the northwest Gulf coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Stewart
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Tropical Storm Nicholas Public Advisory Number 6
2021-09-13 16:36:02| National Hurricane Center (Atlantic)
Issued at 1000 AM CDT Mon Sep 13 2021 000 WTNT34 KNHC 131435 TCPAT4 BULLETIN Tropical Storm Nicholas Advisory Number 6 NWS National Hurricane Center Miami FL AL142021 1000 AM CDT Mon Sep 13 2021 ...NICHOLAS MOVING ERRATICALLY NORTHWARD JUST OFFSHORE THE SOUTHERN COAST OF TEXAS... ...FLASH FLOODING, DANGEROUS STORM SURGE, AND GUSTY WINDS EXPECTED ALONG PORTIONS OF THE SOUTHERN AND MIDDLE TEXAS COASTS TODAY... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...26.4N 96.8W ABOUT 45 MI...70 KM NE OF MOUTH OF THE RIO GRANDE ABOUT 140 MI...225 KM S OF PORT OCONNOR TEXAS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...N OR 5 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning has been extended from San Luis Pass to Sabine Pass including Galveston Bay. The Hurricane Watch has been extended northeastward to San Luis Pass, Texas. The Tropical Storm Warning has been extended eastward to Sabine Pass. The Storm Surge Watch from the Mouth of the Rio Grande to Baffin Bay has been discontinued. The government of Mexico has discontinued the Tropical Storm Warning from Barra el Mezquital to the U.S./Mexico border. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Aransas Texas to Sabine Pass * Galveston Bay, Aransas Bay, San Antonio Bay, and Matagorda Bay A Hurricane Watch is in effect for... * Port Aransas to San Luis Pass Texas A Tropical Storm Warning is in effect for... * Mouth of the Rio Grande to Sabine Pass A Storm Surge Watch is in effect for... * Baffin Bay to Port Aransas Texas * Sabine Pass to Rutherford Beach Louisiana * Corpus Christi Bay A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in southwestern Louisiana should monitor the progress of Nicholas. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Tropical Storm Nicholas was located by NOAA Doppler weather radars and an Air Force Reserve reconnaissance aircraft near latitude 26.4 North, longitude 96.8 West. Nicholas is moving toward the north near 12 mph (19 km/h) and this general motion is expected to continue today, followed by a turn toward the north-northeast on Tuesday. On the forecast track, the center of Nicholas will pass near or just offshore of the coast of south Texas this morning and move onshore along the coast of south or central Texas late this afternoon or this evening. Data from the reconnaissance aircraft indicate that maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Strengthening is forecast today, and Nicholas could reach the northwest Gulf coast as a hurricane. Weakening is anticipated on Tuesday and Wednesday while Nicholas moves over land. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. NOAA buoy 42020 located southeast of Corpus Christi, Texas, recently reported a sustained wind of 40 mph (65 km/h). The minimum central pressure recently measured by the aircraft is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nicholas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC and on the web at hurricanes.gov/graphics_at4.shtml?key_messages RAINFALL: Nicholas is expected to produce storm total rainfall of 8 to 16 inches, with isolated maximum amounts of 20 inches, across portions of the middle and upper Texas coastal areas through the middle of the week. Life-threatening, flash and urban flooding impacts are possible, especially across portions of the upper Texas Gulf Coast near Lake Jackson and Freeport, TX Across the rest of southeast Texas into southwest Louisiana rainfall of 5 to 10 inches is expected. This rainfall may produce areas of considerable flash and urban flooding, especially in highly urbanized metropolitan areas. Additionally, there is the potential for isolated minor to moderate river flooding. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Port O'Connor to San Luis Pass TX including Matagorda Bay...3-5 ft San Luis Pass, TX to Rutherford Beach, LA including Galveston Bay...2-4 ft Baffin Bay to Port O'Connor, TX...2-4 ft Corpus Christi Bay, Aransas Bay and San Antonio Bay...2-4 ft Mouth of the Rio Grande to Baffin Bay...1-3 ft Rutherford Beach, LA to Intracoastal City, LA...1-3 ft Sabine Lake and Calcasieu Lake...1-3 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are expected within the warning area in southern Texas through the next few hours. These conditions will spread northward within the warning area through tonight, making outside preparations difficult or dangerous. Hurricane conditions are possible in the Hurricane Watch area as early as this afternoon or this evening. TORNADOES: A couple of tornadoes are possible this afternoon and tonight across the middle and upper Texas coast. SURF: Swells generated by Nicholas will continue affecting portions of the northwest Gulf coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Stewart
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