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Hurricane Sally Public Advisory Number 17A
2020-09-15 19:42:42| National Hurricane Center (Atlantic)
Issued at 100 PM CDT Tue Sep 15 2020 000 WTNT34 KNHC 151742 TCPAT4 BULLETIN Hurricane Sally Intermediate Advisory Number 17A NWS National Hurricane Center Miami FL AL192020 100 PM CDT Tue Sep 15 2020 ...SALLY INCHING ITS WAY TOWARD THE NORTHERN GULF COAST... ...HISTORIC LIFE-THREATENING FLOODING LIKELY ALONG PORTIONS OF THE NORTHERN GULF COAST... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...29.2N 88.2W ABOUT 60 MI...95 KM E OF THE MOUTH OF THE MISSISSIPPI RIVER ABOUT 105 MI...165 KM S OF MOBILE ALABAMA MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...982 MB...29.00 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Mouth of the Mississippi River to the Okaloosa/Walton County Line Florida * Mobile Bay A Hurricane Warning is in effect for... * East of Bay St. Louis to Navarre Florida A Tropical Storm Warning is in effect for... * East of Navarre Florida to Indian Pass Florida * Bay St. Louis westward to Grand Isle 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. 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 100 PM CDT (1800 UTC), the center of Hurricane Sally was located near latitude 29.2 North, longitude 88.2 West. Sally is moving toward the northwest near 2 mph (4 km/h). A slow north- northwestward to northward motion is expected this afternoon, followed by a slow northward to north-northeastward motion tonight through Wednesday night. On the forecast track, the center of Sally will pass near the coast of southeastern Louisiana today, and make landfall in the hurricane warning area late tonight or Wednesday. Maximum sustained winds are near 80 mph (130 km/h) with higher gusts. Although little change in strength is forecast until landfall occurs, Sally is still expected to be a dangerous hurricane when it moves onshore along the north-central Gulf coast. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). A NOAA buoy located about 50 miles (80 km) southeast of Mobile, Alabama, recently reported sustained winds of 56 mph (90 km/h) and a gust to 67 mph (108 km/h) within the past few hours. A weather station at Dauphin Island, Alabama, recently reported sustained winds of 45 mph (72 km/h) and a gust to 59 mph (95 km/h). The latest minimum central pressure reported by a NOAA Hurricane Hunter aircraft is 982 mb (29.00 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Sally can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml 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... MS/AL Border to AL/FL Border including Mobile Bay...4-7 ft Mouth of the Mississippi River to Mouth of the Pearl River including Lake Borgne...4-6 ft Mouth of the Pearl River to MS/AL Border...3-5 ft AL/FL Border to Okaloosa/Walton County Line, FL including Pensacola Bay and Choctawhatchee Bay...3-5 ft Lake Pontchartrain and Lake Maurepas...2-4 ft Okaloosa/Walton County Line,FL to Chassahowitzka, FL including Saint Andrews Bay...1-3 ft Grand Isle, LA to Mouth of the Mississippi River...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 damaging 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: Hurricane conditions are expected to begin within the hurricane warning area later today or tonight. Tropical storm conditions are already occurring in portions of the warning areas, and these conditions will continue through Wednesday night. RAINFALL: Sally is forecast to produce 10 to 20 inches of rainfall with isolated amounts of 30 inches along and just inland of the central Gulf Coast from the western Florida Panhandle to far southeastern Mississippi. Historic flooding is likely with extreme life-threatening flash flooding likely through Wednesday. In addition, this rainfall will lead to widespread moderate to major flooding on area rivers. Sally is forecast to move inland Wednesday and track across the Southeast producing rainfall of 4 to 8 inches, with isolated maximum amounts of 12 inches, across portions of southeastern Mississippi, southern and central Alabama, northern Georgia, and the western Carolinas. Significant flash and urban flooding is likely, as well as widespread minor to moderate flooding on some rivers. TORNADOES: Isolated tornadoes may occur today through Wednesday across portions of the Florida Panhandle and southern Alabama. SURF: Swells from Sally will continue to affect the coast from the Florida Big Bend westward to southeastern Louisiana during the next couple of days. 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 Brown
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Hurricane Sally Public Advisory Number 17
2020-09-15 16:45:37| National Hurricane Center (Atlantic)
Issued at 1000 AM CDT Tue Sep 15 2020 000 WTNT34 KNHC 151445 TCPAT4 BULLETIN Hurricane Sally Advisory Number 17 NWS National Hurricane Center Miami FL AL192020 1000 AM CDT Tue Sep 15 2020 ...SALLY CRAWLING NORTHWESTWARD TOWARD THE NORTHERN GULF COAST... ...HISTORIC FLOODING IS POSSIBLE FROM SALLY WITH EXTREME LIFE- THREATENING FLASH FLOODING LIKELY THROUGH WEDNESDAY ALONG PORTIONS OF THE NORTHERN GULF COAST... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...29.1N 88.2W ABOUT 55 MI...85 KM E OF THE MOUTH OF THE MISSISSIPPI RIVER ABOUT 110 MI...180 KM S OF MOBILE ALABAMA MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Warning from the Mouth of the Pearl River to Bay St. Louis Mississippi has been changed to a Tropical Storm Warning. The Tropical Storm Warning for Lake Pontchartrain, Lake Maurepas, and metropolitan New Orleans has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Mouth of the Mississippi River to the Okaloosa/Walton County Line Florida * Mobile Bay A Hurricane Warning is in effect for... * East of Bay St. Louis to Navarre Florida A Tropical Storm Warning is in effect for... * East of Navarre Florida to Indian Pass Florida * Bay St. Louis westward to Grand Isle 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. 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 AM CDT (1500 UTC), the center of Hurricane Sally was located near latitude 29.1 North, longitude 88.2 West. Sally is moving toward the northwest near 2 mph (4 km/h). A slow north- northwestward to northward motion is expected this afternoon, followed by a slow northward to north-northeastward motion tonight through Wednesday night. On the forecast track, the center of Sally will pass near the coast of southeastern Louisiana today, and make landfall in the hurricane warning area late tonight or Wednesday. Maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Although little change in strength is forecast until landfall occurs, Sally is still expected to be a dangerous hurricane when it moves onshore along the north-central Gulf coast. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The latest minimum central pressure reported by a NOAA Hurricane Hunter aircraft is 983 mb (29.03 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Sally can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml 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... MS/AL Border to AL/FL Border including Mobile Bay...4-7 ft Mouth of the Mississippi River to Mouth of the Pearl River including Lake Borgne...4-6 ft Mouth of the Pearl River to MS/AL Border...3-5 ft AL/FL Border to Okaloosa/Walton County Line, FL including Pensacola Bay and Choctawhatchee Bay...3-5 ft Lake Pontchartrain and Lake Maurepas...2-4 ft Okaloosa/Walton County Line,FL to Chassahowitzka, FL including Saint Andrews Bay...1-3 ft Grand Isle, LA to Mouth of the Mississippi River...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 damaging 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: Hurricane conditions are expected to begin within the hurricane warning area later today or tonight. Tropical storm conditions are already occurring in portions of the warning areas, and these conditions will continue through Wednesday night. RAINFALL: Sally is forecast to produce 10 to 20 inches of rainfall with isolated amounts of 30 inches along and just inland of the central Gulf Coast from the western Florida Panhandle to far southeastern Mississippi. Historic flooding is likely with extreme life-threatening flash flooding likely through Wednesday. In addition, this rainfall will lead to widespread moderate to major flooding on area rivers. Sally is forecast to move inland Wednesday and track across the Southeast producing rainfall of 4 to 8 inches, with isolated maximum amounts of 12 inches, across portions of southeastern Mississippi, southern and central Alabama, northern Georgia, and the western Carolinas. Significant flash and urban flooding is likely, as well as widespread minor to moderate flooding on some rivers. TORNADOES: Isolated tornadoes may occur today through Wednesday across portions of the Florida Panhandle and southern Alabama. SURF: Swells from Sally will continue to affect the coast from the Florida Big Bend westward to southeastern Louisiana during the next couple of days. 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 Brown
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Tropical Storm Vicky Public Advisory Number 6
2020-09-15 16:39:08| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Tue Sep 15 2020 000 WTNT31 KNHC 151439 TCPAT1 BULLETIN Tropical Storm Vicky Advisory Number 6 NWS National Hurricane Center Miami FL AL212020 1100 AM AST Tue Sep 15 2020 ...VICKY HOLDING STEADY AS A TROPICAL STORM... ...WEAKENING EXPECTED LATER TONIGHT... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.6N 31.0W ABOUT 560 MI...900 KM NW OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Vicky was located near latitude 20.6 North, longitude 31.0 West. Vicky is moving toward the west-northwest near 9 mph (15 km/h), and a turn toward the west-northwest is expected on Wednesday, followed by a turn toward the west on Thursday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Weakening is forecast due to strong upper-level winds during the next 48 hours, and Vicky is likely to degenerate into remnant low by Wednesday night. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Roberts
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Hurricane Paulette Public Advisory Number 35
2020-09-15 16:37:32| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Tue Sep 15 2020 000 WTNT32 KNHC 151437 TCPAT2 BULLETIN Hurricane Paulette Advisory Number 35 NWS National Hurricane Center Miami FL AL172020 1100 AM AST Tue Sep 15 2020 ...PAULETTE HEADING NORTHEASTWARD AT AN EVEN FASTER PACE... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...38.3N 57.9W ABOUT 570 MI...915 KM NE OF BERMUDA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 29 MPH...46 KM/H MINIMUM CENTRAL PRESSURE...965 MB...28.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Hurricane Paulette was located near latitude 38.3 North, longitude 57.9 West. Paulette is moving toward the northeast near 29 mph (46 km/h). A faster motion toward the east-northeast is expected through Thursday. Afterward, Paulette is forecast to slow down and turn toward the east-southeast and south-southeast late Thursday and Friday. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Some strengthening is possible through tonight, but rapid weakening is forecast to begin on Wednesday as the cyclone undergoes extratropical transition. Paulette should complete its transition to an extratropical cyclone on Thursday. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 230 miles (370 km). The estimated minimum central pressure is 965 mb (28.50 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Paulette will continue to affect portions of Bermuda, the Bahamas, the Greater Antilles, and the east coast of the United States through tonight. 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 500 PM AST. $$ Forecaster Roberts
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Tropical Storm Teddy Public Advisory Number 12
2020-09-15 16:34:05| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Tue Sep 15 2020 000 WTNT35 KNHC 151433 TCPAT5 BULLETIN Tropical Storm Teddy Advisory Number 12 NWS National Hurricane Center Miami FL AL202020 1100 AM AST Tue Sep 15 2020 ...TEDDY WILL LIKELY BECOME A HURRICANE LATER TODAY OR EARLY WEDNESDAY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...14.0N 47.0W ABOUT 960 MI...1545 KM E OF THE LESSER ANTILLES MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Teddy was located near latitude 14.0 North, longitude 47.0 West. Teddy is moving toward the west-northwest near 13 mph (20 km/h). A steady northwest motion at 10 to 15 mph is expected through the end of the week. Maximum sustained winds have increased to near 65 mph (100 km/h) with higher gusts. Additional strengthening is forecast for the next several days. Teddy will likely become a hurricane later today or tonight and could reach major hurricane strength in a few days. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Large swells generated by Tropical Storm Teddy are expected to reach the Lesser Antilles and the northeastern coast of South America on Wednesday. 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 500 PM AST. $$ Forecaster Zelinsky
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