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Tropical Storm Hanna Public Advisory Number 14
2020-07-26 10:53:12| National Hurricane Center (Atlantic)
Issued at 400 AM CDT Sun Jul 26 2020 000 WTNT33 KNHC 260853 TCPAT3 BULLETIN Tropical Storm Hanna Advisory Number 14 NWS National Hurricane Center Miami FL AL082020 400 AM CDT Sun Jul 26 2020 ...CENTER OF HANNA MOVES INTO NORTHEASTERN MEXICO... ...STORM SURGE WARNING DISCONTINUED FOR THE TEXAS COAST... SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...26.3N 98.9W ABOUT 40 MI...65 KM WNW OF MCALLEN TEXAS ABOUT 65 MI...105 KM ENE OF MONTERREY MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...WSW OR 250 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning has been discontinued along the Texas coast. The Tropical Storm Warning has been discontinued north of Baffin bay, Texas. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Barra el Mezquital Mexico to Baffin Bay Texas A Tropical Storm Warning means that tropical storm conditions are occurring within the warning areas. Interests in northeastern Mexico should monitor the progress of Hanna. 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 400 AM CDT (0900 UTC), the center of Tropical Storm Hanna was located near latitude 26.3 North, longitude 98.9 West. Hanna is moving toward the west-southwest near 9 mph (15 km/h) and this motion is expected to continue through Monday. On the forecast track, the center of Hanna should continue to move farther inland over northeastern Mexico today and tonight. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Rapid weakening is expected as the center of Hanna moves farther inland, and the cyclone is expected to weaken to a tropical depression by tonight and dissipate Monday or Monday night. Tropical-storm-force winds extend outward up to 115 miles (185 km) mainly over water to the east of the center. Miller International Airport in McAllen recently reported a wind gust of 54 mph (87 km/h). The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Hanna can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT3.shtml. STORM SURGE: Water levels along the Texas coast will gradually subside through this morning. Consult products issued by your local National Weather Service forecast office for additional information. WIND: Tropical storm conditions will continue near the center of Hanna for the next several hours, and along the Texas and northeastern Mexican coast in the warning area for a few more hours. RAINFALL: Hanna is expected to produce total rain accumulations of 6 to 12 inches, with isolated maximum amounts of 18 inches through Monday in south Texas and into the Mexican states of Coahuila, Nuevo Leon, and northern Tamaulipas. This rain will produce life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding. Hanna is also expected to produce 2 to 4 inches of rain along the upper Texas and Louisiana coasts. SURF: Swells generated by Hanna will continue to affect much of the Texas and Louisiana coasts for another day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: A few tornadoes are possible today into this evening across parts of south Texas. NEXT ADVISORY ------------- Next intermediate advisory at 700 AM CDT. Next complete advisory at 1000 AM CDT. $$ Forecaster Beven
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Tropical Storm Hanna Forecast Advisory Number 14
2020-07-26 10:51:41| National Hurricane Center (Atlantic)
Issued at 0900 UTC SUN JUL 26 2020 000 WTNT23 KNHC 260851 TCMAT3 TROPICAL STORM HANNA FORECAST/ADVISORY NUMBER 14 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082020 0900 UTC SUN JUL 26 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE STORM SURGE WARNING HAS BEEN DISCONTINUED ALONG THE TEXAS COAST. THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED NORTH OF BAFFIN BAY TEXAS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * BARRA EL MEZQUITAL MEXICO TO BAFFIN BAY TEXAS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE OCCURRING WITHIN THE WARNING AREAS. INTERESTS IN NORTHEASTERN MEXICO SHOULD MONITOR THE PROGRESS OF HANNA. TROPICAL STORM CENTER LOCATED NEAR 26.3N 98.9W AT 26/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST-SOUTHWEST OR 250 DEGREES AT 8 KT ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 20NE 20SE 0SW 20NW. 34 KT.......100NE 100SE 40SW 40NW. 12 FT SEAS.. 90NE 0SE 0SW 0NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 26.3N 98.9W AT 26/0900Z...INLAND AT 26/0600Z CENTER WAS LOCATED NEAR 26.5N 98.5W...INLAND FORECAST VALID 26/1800Z 25.8N 99.9W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 30NE 30SE 0SW 30NW. FORECAST VALID 27/0600Z 25.1N 101.4W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 27/1800Z 24.5N 102.7W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 28/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.3N 98.9W INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 26/1200Z NEXT ADVISORY AT 26/1500Z $$ FORECASTER BEVEN
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Hurricane Hanna Public Advisory Number 13A
2020-07-26 09:08:39| National Hurricane Center (Atlantic)
Issued at 100 AM CDT Sun Jul 26 2020 000 WTNT33 KNHC 260707 CCB TCPAT3 BULLETIN Hurricane Hanna Intermediate Advisory Number 13A...Corrected NWS National Hurricane Center Miami FL AL082020 100 AM CDT Sun Jul 26 2020 Corrected to discontinue part of the Storm Surge Warnng ...HANNA WEAKENS TO A TROPICAL STORM OVER SOUTHERN TEXAS... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...26.5N 98.5W ABOUT 30 MI...50 KM NW OF MCALLEN TEXAS MAXIMUM SUSTAINED WINDS...70 MPH...115 KM/H PRESENT MOVEMENT...WSW OR 250 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Warning has been changed to a Tropical Storm Warning along the Texas coast from Port Mansfield to Baffin Bay. The Storm Surge Warning has been discontinued along the Texas coast from Port Aransas to Port O'Connor. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Port Mansfield to Port Aransas A Tropical Storm Warning is in effect for... * Barra el Mezquital Mexico to Port O'Connor Texas A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 24 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 occurring within the warning areas. Interests elsewhere along the Texas coast should monitor the progress of Hanna. Interests in northeastern Mexico should also monitor the progress of this tropical storm. 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 AM CDT (0600 UTC), the center of Tropical Storm Hanna was located near latitude 26.5 North, longitude 98.5 West. Hanna is moving toward the west-southwest near 9 mph (15 km/h) and this motion is expected to continue through Sunday. On the forecast track, the center of Hanna should continue to move farther inland over southern Texas this morning and move into northeastern Mexico later today. Maximum sustained winds have decreased to near 70 mph (115 km/h) with higher gusts. Rapid weakening is expected today as Hanna moves farther inland. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. A Texas Mesonet Station northeast of Edcouch, Texas, recently reported a sustained wind of 48 mph (77 km/h) and a wind gust of 68 mph (109 km/h). The estimated minimum central pressure is 983 mb (29.03 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Hanna can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT3.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... Baffin Bay to Port Aransas including Baffin Bay, Corpus Christi Bay...4-6 ft Port Mansfield to Baffin Bay...2-4 ft Port Aransas to Port O'Connor including Aransas Bay...2-4 ft Mouth of the Rio Grande to Port Mansfield...1-3 ft North of Port O'Connor to High Island including Galveston Bay...1-2 ft The deepest water will occur along the immediate coast near and to the right of the landfall location. 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 occuring in portions of the tropical storm warning area and will spread farther inland overnight and Sunday. RAINFALL: Hanna is expected to produce total rain accumulations of 6 to 12 inches, with isolated maximum amounts of 18 inches through Monday in south Texas and into the Mexican states of Coahuila, Nuevo Leon, and northern Tamaulipas. This rain will produce life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding. Hanna is also expected to produce 2 to 4 inches of rain along the upper Texas and Louisiana coasts. SURF: Swells generated by Hanna will continue to affect much of the Texas and Louisiana coasts for another day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: A few tornadoes are possible overnight over parts of the lower to middle Texas coastal plain. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Beven
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Hurricane Hanna Public Advisory Number 12A
2020-07-26 01:48:11| National Hurricane Center (Atlantic)
Issued at 700 PM CDT Sat Jul 25 2020 000 WTNT33 KNHC 252348 TCPAT3 BULLETIN Hurricane Hanna Intermediate Advisory Number 12A NWS National Hurricane Center Miami FL AL082020 700 PM CDT Sat Jul 25 2020 ...EYE OF HANNA OVER SOUTHERN TEXAS... ...HURRICANE CONDITIONS AND HEAVY RAINS CONTINUE... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...26.7N 97.5W ABOUT 10 MI...15 KM NW OF PORT MANSFIELD TEXAS ABOUT 75 MI...125 KM S OF CORPUS CHRISTI TEXAS MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...WSW OR 255 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...975 MB...28.79 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 Mansfield to Sargent Texas A Hurricane Warning is in effect for... * Port Mansfield to Port Aransas Texas A Tropical Storm Warning is in effect for... * Barra el Mezquital Mexico to Port Mansfield Texas * Port Aransas to Port O'Connor Texas A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 24 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 occurring within the warning area. Preparations to protect life and property should have already been completed. A Tropical Storm Warning means that tropical storm conditions are occurring within the warning areas. Interests elsewhere along the Texas and Louisiana coasts should monitor the progress of Hanna. Interests in northeastern Mexico should also monitor the progress of this hurricane. 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 eye of Hurricane Hanna was located near latitude 26.7 North, longitude 97.5 West. Hanna is moving toward the west-southwest near 8 mph (13 km/h) and this motion is expected to continue through Sunday. On the forecast track, the center of Hanna should continue to move farther inland over southern Texas tonight and move into northeastern Mexico on Sunday. Maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Rapid weakening is expected as Hanna moves farther inland. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure based on surface observations is 975 mb (28.79 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Hanna can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT3.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... Baffin Bay to Port Aransas including Corpus Christi Bay...4-6 ft Port Mansfield to Baffin Bay...2-4 ft North of Port Aransas to Sargent including Copano Bay , Aransas Bay, San Antonio Bay, and Matagorda Bay...2-4 ft Mouth of the Rio Grande to Port Mansfield...1-3 ft North of Sargent to High Island including Galveston Bay...1-2 ft The deepest water will occur along the immediate coast near and to the right of the landfall location. 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 will continue in portions of the hurricane warning area through this evening. Tropical storm conditions are occuring in portions of the tropical storm warning area and will spread farther inland tonight and Sunday. RAINFALL: Hanna is expected to produce total rain accumulations of 6 to 12 inches, with isolated maximum amounts of 18 inches through Monday in south Texas and into the Mexican states of Coahuila, Nuevo Leon, and northern Tamaulipas. This rain will produce life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding. Hanna is also expected to produce 3 to 5 inches of rain along the upper Texas and Louisiana coasts. SURF: Swells generated by Hanna will continue to affect much of the Texas and Louisiana coasts for another day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: A few tornadoes are possible this evening and overnight over parts of the lower to middle Texas coastal plain. NEXT ADVISORY ------------- Next complete advisory at 1000 PM CDT. $$ Forecaster Cangialosi
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Hurricane Hanna Forecast Discussion Number 12
2020-07-25 22:59:37| National Hurricane Center (Atlantic)
Issued at 400 PM CDT Sat Jul 25 2020 000 WTNT43 KNHC 252059 TCDAT3 Hurricane Hanna Discussion Number 12 NWS National Hurricane Center Miami FL AL082020 400 PM CDT Sat Jul 25 2020 NOAA Doppler weather radar data from Brownsville and Corpus Christi, Texas, along with reconnaissance data from the Air Force Hurricane Hunters indicate that Hanna has continued to strengthen this afternoon. A 30-nmi-wide eye remains distinct in the radar data, and dropsonde and 700-mb flight-level-level height data from the aircraft indicate that the central pressure has decreased to 973 mb. The aircraft measured a peak 700-mb flight-level wind speed of 86 kt on its last outbound leg, which equates to about 77 kt at the surface. Coincident with the flight-level wind data were SFMR surface wind speeds of 80 kt. In addition, Doppler velocity values have been averaging close to 100 kt between 5000-6000 ft in the northern and northeastern eyewall, which converts to 80-kt surface wind speed estimates. Based on these data, the initial intensity has been increased to 80 kt. No further strengthening is anticipated before the center of Hanna's eye makes landfall along the south Texas coast in a few hours. Doppler radar and aircraft reconnaissance fixes indicate that Hanna has finally made the much anticipated turn toward the west-southwest, now showing an initial motion of 255/07 kt. A west-southwestward motion is expected to continue for the next 48 hours, which will take Hanna well inland over south Texas, followed by eventual dissipation in about 48 h over over the mountains of northeastern Mexico. The new NHC track forecast remains unchanged from the previous advisory, and lies near the center of the tightly packed consensus models. Key Messages 1. Life-threatening storm surge will continue along portions of the Texas coast from Port Mansfield to Sargent, where a Storm Surge Warning is in effect. Residents in these locations should follow advice given by local emergency officials. 2. Hurricane conditions will continue within the Hurricane Warning area along the Texas coast through this evening. Strong winds will also spread inland across portions of South Texas where Tropical Storm and Hurricane Warnings are in effect. 3. Hanna is expected to produce heavy rains across portions of southern Texas and northeastern Mexico. These rains will result in life-threatening flash flooding and isolated minor to moderate river flooding. FORECAST POSITIONS AND MAX WINDS INIT 25/2100Z 26.8N 97.2W 80 KT 90 MPH 12H 26/0600Z 26.7N 98.4W 50 KT 60 MPH...INLAND 24H 26/1800Z 26.0N 100.0W 30 KT 35 MPH...INLAND 36H 27/0600Z 25.5N 101.4W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 27/1800Z...DISSIPATED INLAND $$ Forecaster Stewart
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