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Summary for Tropical Storm Hanna (AT3/AL082020)

2020-07-26 19:42:44| National Hurricane Center (Atlantic)

...HANNA MOVING WEST-SOUTHWESTWARD OVER NORTHEASTERN MEXICO... ...HEAVY RAIN AND DANGEROUS FLASH FLOODING CONTINUES OVER FAR SOUTHEAST TEXAS AND NORTHEAST MEXICO... As of 1:00 PM CDT Sun Jul 26 the center of Hanna was located near 25.9, -100.1 with movement WSW at 9 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 40 mph.

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Tropical Storm Hanna Public Advisory Number 15A

2020-07-26 19:42:44| National Hurricane Center (Atlantic)

Issued at 100 PM CDT Sun Jul 26 2020 000 WTNT33 KNHC 261742 TCPAT3 BULLETIN Tropical Storm Hanna Intermediate Advisory Number 15A NWS National Hurricane Center Miami FL AL082020 100 PM CDT Sun Jul 26 2020 ...HANNA MOVING WEST-SOUTHWESTWARD OVER NORTHEASTERN MEXICO... ...HEAVY RAIN AND DANGEROUS FLASH FLOODING CONTINUES OVER FAR SOUTHEAST TEXAS AND NORTHEAST MEXICO... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...25.9N 100.1W ABOUT 10 MI...15 KM N OF MONTERREY MEXICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WSW OR 250 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has discontinued the Tropical Storm Watch along the coast of northeastern Mexico. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. Interests in northeastern Mexico should monitor the progress of Hanna. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 PM CDT (1800 UTC), the center of Tropical Storm Hanna was located near latitude 25.9 North, longitude 100.1 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 through tonight. Maximum sustained winds have decreased to near 40 mph (65 km/h) with higher gusts. Additional weakening is expected as the center of Hanna moves farther inland, and the cyclone is expected to weaken to a tropical depression later today and dissipate Monday or Monday night. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. A wind gust to 39 mph (63 km/h) was recently reported at Monterrey, Mexico. The estimated minimum central pressure is 1000 mb (29.53 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 afternoon. 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 few hours. RAINFALL: Hanna is expected to produce the following rain accumulations and flood threats through Monday: South Texas...Additional 2 to 5 inches. Storm total amounts 6 to 12 inches, isolated 16 inches. Northern Mexican states of Coahuila, Nuevo Leon, Tamaulipas...6 to 12 inches, isolated 16 inches. Northern Mexican states of northern Zacatecas and eastern Durango...1 to 4 inches. This rain will produce life-threatening flash flooding, rapid rises on small streams, and isolated minor to moderate river flooding in South Texas. Flash flooding and mudslides are likely across Northern Mexican states. 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 complete advisory at 400 PM CDT. $$ Forecaster Brown

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Tropical Storm Hanna Graphics

2020-07-26 19:42:31| National Hurricane Center (Atlantic)

5-Day Uncertainty Track last updated Sun, 26 Jul 2020 17:42:31 GMT Wind Speed Probabilities last updated Sun, 26 Jul 2020 15:24:42 GMT

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Atlantic Tropical Weather Outlook

2020-07-26 19:14:20| National Hurricane Center (Atlantic)

000 ABNT20 KNHC 261714 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Sun Jul 26 2020 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Storm Hanna, located inland over northeast Mexico. A broad area of low pressure located over the central tropical Atlantic continues to produce a wide area of disorganized showers and thunderstorms as it moves westward around 20 mph. Environmental conditions are forecast to be conducive for development and a tropical depression or tropical storm is likely to form within the next two or three days as the system nears the Lesser Antilles. Interests in the Lesser Antilles should monitor the progress of this system. * Formation chance through 48 hours...high...70 percent. * Formation chance through 5 days...high...90 percent. $$ Forecaster Zelinsky

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Eastern North Pacific Tropical Weather Outlook

2020-07-26 19:12:20| National Hurricane Center (East Pacific)

000 ABPZ20 KNHC 261712 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Sun Jul 26 2020 For the eastern North Pacific...east of 140 degrees west longitude: Tropical cyclone formation is not expected during the next 5 days. $$ Forecaster Zelinsky

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