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Tropical Storm Hanna Public Advisory Number 5A
2020-07-24 07:35:35| National Hurricane Center (Atlantic)
Issued at 100 AM CDT Fri Jul 24 2020 000 WTNT33 KNHC 240535 TCPAT3 BULLETIN Tropical Storm Hanna Intermediate Advisory Number 5A NWS National Hurricane Center Miami FL AL082020 100 AM CDT Fri Jul 24 2020 ...HANNA CONTINUES MOVING SLOWLY WEST-NORTHWESTWARD TOWARD TEXAS... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...26.4N 91.8W ABOUT 360 MI...575 KM ESE OF CORPUS CHRISTI TEXAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 7 MPH...11 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 Tropical Storm Warning is in effect for... * Mouth of the Rio Grande to San Luis Pass Texas A Tropical Storm Watch is in effect for... * San Luis Pass to High Island Texas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests along the Texas and Louisiana coast should monitor the progress of this system. 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 26.4 North, longitude 91.8 West. Hanna is moving toward the west-northwest near 7 mph (11 km/h) and a west-northwestward to westward motion is expected during the next couple of days. On the forecast track, the center of the storm is expected to move across the northwestern Gulf of Mexico today and tonight, and make landfall along the Texas coast on Saturday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Additional strengthening is expected until the system makes landfall. Steady weakening is expected after Hanna moves inland. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Hanna can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. WIND: Tropical storm conditions are expected in the warning area by tonight or Saturday morning. Tropical storm conditions are possible within the watch area by tonight or Saturday morning. RAINFALL: Hanna is expected to produce 3 to 5 inches of rain with isolated maximum totals of 10 inches through Monday along the Gulf Coast of the United States from Louisiana to south Texas, and inland to the Mexican states of Coahuila, Nuevo Leon, and northern Tamaulipas. This rain may result in life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding. SURF: Swells generated by Hanna are expected to increase and affect much of the Texas and Louisiana coasts during the next few 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 AM CDT. $$ Forecaster Pasch
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Summary for Tropical Storm Hanna (AT3/AL082020)
2020-07-24 05:04:04| National Hurricane Center (Atlantic)
...NOAA HURRICANE HUNTERS FIND THAT THE GULF DEPRESSION HAS STRENGTHENED INTO TROPICAL STORM HANNA... ...TROPICAL STORM WARNING EXTENDED SOUTHWARD... As of 10:00 PM CDT Thu Jul 23 the center of Hanna was located near 26.2, -91.4 with movement WNW at 7 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 40 mph.
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Tropical Storm Hanna Public Advisory Number 5
2020-07-24 05:04:04| National Hurricane Center (Atlantic)
Issued at 1000 PM CDT Thu Jul 23 2020 000 WTNT33 KNHC 240303 CCA TCPAT3 BULLETIN Tropical Storm Hanna Advisory Number 5...Corrected NWS National Hurricane Center Miami FL AL082020 1000 PM CDT Thu Jul 23 2020 Corrected headline ...NOAA HURRICANE HUNTERS FIND THAT THE GULF DEPRESSION HAS STRENGTHENED INTO TROPICAL STORM HANNA... ...TROPICAL STORM WARNING EXTENDED SOUTHWARD... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...26.2N 91.4W ABOUT 385 MI...620 KM ESE OF CORPUS CHRISTI TEXAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning has been extended southward from Port Mansfield Texas to the Mouth of the Rio Grande. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Mouth of the Rio Grande to San Luis Pass Texas A Tropical Storm Watch is in effect for... * San Luis Pass to High Island Texas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests along the Texas and Louisiana coast should monitor the progress of this system. Tropical Storm Warnings may be required for portions of the Watch area later today. 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 Tropical Storm Hanna was located near latitude 26.2 North, longitude 91.4 West. Hanna is moving toward the west-northwest near 7 mph (11 km/h) and a west-northwestward to westward motion is expected during the next couple of days. On the forecast track, the center of the storm is expected to move across the northwestern Gulf of Mexico on Friday and make landfall along the Texas coast on Saturday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Additional strengthening is expected until the system makes landfall. Steady weakening is expected after Hanna moves inland. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Hanna can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. WIND: Tropical storm conditions are expected in the warning area by Friday night or Saturday morning. Tropical storm conditions are possible within the watch area by Friday night or Saturday morning. RAINFALL: Hanna is expected to produce 3 to 5 inches of rain with isolated maximum totals of 10 inches through Monday along the Gulf Coast of the United States from Louisiana to south Texas, and inland to the Mexican states of Coahuila, Nuevo Leon, and northern Tamaulipas. This rain may result in life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding. SURF: Swells generated by Hanna are expected to increase and affect much of the Texas and Louisiana coasts during the next few 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 AM CDT. Next complete advisory at 400 AM CDT. $$ Forecaster Cangialosi
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Tropical Storm Hanna Graphics
2020-07-24 04:59:49| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Fri, 24 Jul 2020 02:59:49 GMT Wind Speed Probabilities last updated Fri, 24 Jul 2020 02:59:49 GMT
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Tropical Storm Hanna Forecast Discussion Number 5
2020-07-24 04:58:03| National Hurricane Center (Atlantic)
Issued at 1000 PM CDT Thu Jul 23 2020 000 WTNT43 KNHC 240257 TCDAT3 Tropical Storm Hanna Discussion Number 5 NWS National Hurricane Center Miami FL AL082020 1000 PM CDT Thu Jul 23 2020 The system continues to organize with curved bands becoming better established around the center. The cyclone certainly has the appearance of a tropical storm, and just minutes ago the NOAA Hurricane Hunters found winds to support upgrading the system to a 35-kt tropical storm. Data from the aircraft also show that the minimum pressure has dropped to 1002 mb, indicating that the system is on a developing trend. Hanna is moving fairly slowly to the west-northwest, with the latest initial motion estimated to be 285/6 kt. This west-northwest motion should continue on Friday, but a turn to the west is expected by Friday night as a subtropical ridge strengthens to the north of the cyclone. This steering flow should take the center of the storm across the southern Texas coast in 36 to 48 hours. After landfall, the storm is forecast to turn south of west across extreme southern Texas and northern Mexico. The models have shifted southward again this cycle, and the NHC track forecast has been adjusted in that direction. Additional strengthening seems quite likely until the storm makes landfall since it is expected to remain over the very warm Gulf of Mexico waters and in generally low wind shear conditions. After landfall, steady weakening should commence, and the cyclone should dissipate over the rugged terrain of northern Mexico in about 4 days. The NHC intensity forecast is a little above the previous one and at the high end of the guidance given the system's well organized structure and favorable environment. Due to the southward shift in the track forecast, the tropical storm warning has been extended southward from Port Mansfield to the Mouth of the Rio Grande. Tropical Storm Hanna is the earliest 8th storm on record. The previous record was in 2005 when Harvey formed on August 3rd. Key Messages 1. Hanna is forecast to strengthen and it is expected to bring tropical-storm-force winds to portions of the Texas coast, where a tropical storm warning is in effect. 2. Hanna is expected to produce heavy rains across portions of Louisiana, southern Texas, and northern Mexico. These rains could result in flash flooding and isolated minor-to-moderate river flooding. FORECAST POSITIONS AND MAX WINDS INIT 24/0300Z 26.2N 91.4W 35 KT 40 MPH 12H 24/1200Z 26.6N 92.8W 40 KT 45 MPH 24H 25/0000Z 27.1N 94.5W 45 KT 50 MPH 36H 25/1200Z 27.2N 96.3W 55 KT 65 MPH 48H 26/0000Z 27.2N 97.8W 45 KT 50 MPH...INLAND 60H 26/1200Z 27.0N 99.3W 30 KT 35 MPH...INLAND 72H 27/0000Z 26.5N 100.5W 25 KT 30 MPH...INLAND 96H 28/0000Z...DISSIPATED $$ Forecaster Cangialosi
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