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| #1019960 (Received by flhurricane at: 4:59 AM 05.Oct.2020) TCPAT5 BULLETIN Tropical Storm Gamma Advisory Number 12 NWS National Hurricane Center Miami FL AL252020 400 AM CDT Mon Oct 05 2020 ...TROPICAL STORM GAMMA DRIFTING WEST-SOUTHWESTWARD JUST NORTH OF THE YUCATAN PENINSULA... SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...22.7N 87.5W ABOUT 170 MI...275 KM NE OF PROGRESO MEXICO ABOUT 155 MI...250 KM NNW OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WSW OR 240 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * North and west of Cancun to Dzilam Mexico A Tropical Storm Watch is in effect for... * West of Dzilam to Campeche Mexico A Tropical Storm Warning means that tropical storm conditions are occurring somewhere within the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 400 AM CDT (0900 UTC), the center of Tropical Storm Gamma was located near latitude 22.7 North, longitude 87.5 West. Gamma is drifting toward the west-southwest near 2 mph (4 km/h). Gamma is forecast to gradually turn toward the southwest later today, and continue to move slowly in that direction through mid-week. On the forecast track, the center of Gamma will continue to meander offshore of the northern Yucatan Peninsula early this morning, and pass near or just offshore of the northern coast of the Yucatan Peninsula late today and on Tuesday. Gamma could possibly move inland along the northwest coast of the Yucatan Peninsula Tuesday night and Wednesday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Slow weakening is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 160 miles (260 km), mainly northwest through northeast of the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Gamma can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml. RAINFALL: Through midweek, Gamma is expected to produce an additional 3 to 6 inches of rainfall with isolated maximum amounts of 8 inches across portions of the Mexican states of Yucatan, Campeche, and Tabasco. This rainfall may produce significant flash flooding. WIND: Tropical storm conditions are likely in portions of the Tropical Storm Warning area along the northern coast of the Yucatan Peninsula later today. Tropical Storm conditions are possible within the Tropical Storm Watch area tonight and on Tuesday. NEXT ADVISORY ------------- Next intermediate advisory at 700 AM CDT. Next complete advisory at 1000 AM CDT. $$ Forecaster Stewart |