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Tropical Storm Gamma Public Advisory Number 7A
2020-10-04 07:53:07| National Hurricane Center (Atlantic)
Issued at 100 AM CDT Sun Oct 04 2020 633 WTNT35 KNHC 040553 TCPAT5 BULLETIN Tropical Storm Gamma Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL AL252020 100 AM CDT Sun Oct 04 2020 ...GAMMA MOVES OVER THE EXTREME SOUTHERN GULF OF MEXICO... ...TORRENTIAL RAINS OCCURRING OVER THE NORTHERN YUCATAN PENINSULA... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...21.8N 88.2W ABOUT 100 MI...160 KM WNW OF CANCUN MEXICO ABOUT 100 MI...160 KM ENE OF PROGRESO MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...995 MB...29.38 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 Punta Allen to Dzilam Mexico, including Cozumel A Tropical Storm Watch is in effect for... * West of Dzilam to Progreso Mexico A Tropical Storm Warning means that tropical storm conditions are expected 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 100 AM CDT (0600 UTC), the center of Tropical Storm Gamma was located near latitude 21.8 North, longitude 88.2 West. Gamma is moving toward the northwest near 8 mph (13 km/h) and a turn toward the north-northwest with decreasing forward speed is expected later today, followed by a turn to the west or west-southwest tonight or Monday. On the forecast track, the center of Gamma will meander offshore of the northern Yucatan Peninsula and over the extreme southern Gulf of Mexico today, and pass near or just offshore of the northern coast of the Yucatan Peninsula on Monday and Tuesday. Maximum sustained winds have decreased to near 50 mph (95 km/h) with higher gusts. Some re-strengthening is expected during the next day or so now that the center of Gamma has moved back out over open water. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. The estimated minimum central pressure is 995 mb (29.38 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: Gamma is expected to produce storm total rainfall of 4 to 8 inches across portions of the Yucatan Peninsula and far western Cuba, with maximum rainfall amounts as high as 10 to 15 inches possible across northeastern Quintana Roo and northern Yucatan. This rainfall may produce life-threatening flash floods. A separate area of significant rain is possible in the Mexican states of Campeche, Tabasco, northern Chiapas, and southeast Veracruz, with rainfall of 6 to 8 inches and isolated maximum amounts of 12 inches. This rainfall may produce life-threatening flash floods and mudslides. The storm will also result in an area of heavy rains to the south from southern Guatemala towards the Gulf of Fonseca region between eastern El Salvador, southern Honduras, and northwest Nicaragua, with accumulations of 4 to 6 inches and isolated maximum amounts of 8 inches. WIND: Tropical storm conditions should continue within the Tropical Storm Warning area on the east coast of the Yucatan Peninsula for the next few hours, and on the north coast of the Yucatan through today. Tropical Storm conditions are possible within the Tropical Storm Watch area on Monday. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Stewart
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