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Tropical Storm Gamma Public Advisory Number 11A
2020-10-05 07:46:23| National Hurricane Center (Atlantic)
Issued at 100 AM CDT Mon Oct 05 2020 000 WTNT35 KNHC 050546 TCPAT5 BULLETIN Tropical Storm Gamma Intermediate Advisory Number 11A NWS National Hurricane Center Miami FL AL252020 100 AM CDT Mon Oct 05 2020 ...RECONNAISSANCE AIRCRAFT FINDS GAMMA A LITTLE WEAKER WHILE IT CONTINUES TO MEANDER JUST NORTH OF THE YUCATAN PENINSULA... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...22.8N 87.4W ABOUT 180 MI...290 KM ENE OF PROGRESO MEXICO ABOUT 165 MI...265 KM NNW OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 270 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 100 AM CDT (0600 UTC), data from an Air Force Reserve Hurricane Hunter aircraft indicated that the center of Tropical Storm Gamma was located near latitude 22.8 North, longitude 87.4 West. The tropical storm is drifting toward the west near 2 mph (4 km/h). Gamma is forecast to gradually turn toward the southwest or west-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 this morning, and pass near or just offshore of the northern coast of the Yucatan Peninsula late today and on Tuesday. Data from the reconnaissance aircraft indicate that maximum sustained winds have decreased to near 50 mph (85 km/h) with higher gusts. Further weakening is forecast during the next 48 hours. Afterward, little change in strength is forecast. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure based on measurements from the hurricane hunter plane 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: 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 enhance any ongoing flash flooding and result in new areas of flash flooding into the middle of the week. WIND: Tropical storm conditions are likely in portions of the Tropical Storm Warning area along the northern coast of the Yucatan Peninsula today. Tropical Storm conditions are possible within the Tropical Storm Watch area late today and on Tuesday. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Stewart
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