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Summary for Tropical Storm Gamma (AT5/AL252020)

2020-10-04 22:56:47| National Hurricane Center (Atlantic)

...GAMMA STALLED JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN PENINSULA... As of 4:00 PM CDT Sun Oct 4 the center of Gamma was located near 22.4, -87.8 with movement Stationary. The minimum central pressure was 997 mb with maximum sustained winds of about 60 mph.

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Tropical Storm Gamma Forecast Advisory Number 10

2020-10-04 22:56:17| National Hurricane Center (Atlantic)

Issued at 2100 UTC SUN OCT 04 2020 000 WTNT25 KNHC 042056 TCMAT5 TROPICAL STORM GAMMA FORECAST/ADVISORY NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL AL252020 2100 UTC SUN OCT 04 2020 CHANGES IN WATCHES AND WARNINGS 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 PROGRESO 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. TROPICAL STORM CENTER LOCATED NEAR 22.4N 87.8W AT 04/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT 0 KT ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 40NE 20SE 20SW 30NW. 34 KT.......140NE 60SE 40SW 120NW. 12 FT SEAS..120NE 45SE 120SW 150NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 22.4N 88.1W AT 04/2100Z AT 04/1800Z CENTER WAS LOCATED NEAR 22.4N 88.0W FORECAST VALID 05/0600Z 22.3N 88.1W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 50SE 30SW 100NW. FORECAST VALID 05/1800Z 22.1N 88.6W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...100NE 40SE 20SW 90NW. FORECAST VALID 06/0600Z 21.7N 89.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...100NE 40SE 20SW 90NW. FORECAST VALID 06/1800Z 21.3N 90.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 90NE 40SE 20SW 90NW. FORECAST VALID 07/0600Z 20.8N 91.1W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 90NE 40SE 20SW 90NW. FORECAST VALID 07/1800Z 20.1N 91.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 90NE 40SE 20SW 90NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 08/1800Z 21.0N 92.1W MAX WIND 40 KT...GUSTS 50 KT. OUTLOOK VALID 09/1800Z 22.2N 92.7W MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.4N 88.1W INTERMEDIATE PUBLIC ADVISORY...WTNT35 KNHC/MIATCPAT5...AT 05/0000Z NEXT ADVISORY AT 05/0300Z $$ FORECASTER ROBERTS

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Tropical Storm Gamma Graphics

2020-10-04 19:45:10| National Hurricane Center (Atlantic)

5-Day Uncertainty Track last updated Sun, 04 Oct 2020 17:45:10 GMT Wind Speed Probabilities last updated Sun, 04 Oct 2020 15:25:28 GMT

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Summary for Tropical Storm Gamma (AT5/AL252020)

2020-10-04 19:44:47| National Hurricane Center (Atlantic)

...GAMMA MEANDERING JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN PENINSULA... As of 1:00 PM CDT Sun Oct 4 the center of Gamma was located near 22.4, -88.0 with movement N at 2 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 60 mph.

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Tropical Storm Gamma Public Advisory Number 9A

2020-10-04 19:44:47| National Hurricane Center (Atlantic)

Issued at 100 PM CDT Sun Oct 04 2020 000 WTNT35 KNHC 041744 TCPAT5 BULLETIN Tropical Storm Gamma Intermediate Advisory Number 9A NWS National Hurricane Center Miami FL AL252020 100 PM CDT Sun Oct 04 2020 ...GAMMA MEANDERING JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN PENINSULA... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...22.4N 88.0W ABOUT 60 MI...90 KM NNE OF RIO LAGARTOS MEXICO ABOUT 120 MI...190 KM NE OF PROGRESO MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...N OR 005 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 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 Progreso 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 PM CDT (1800 UTC), the center of Tropical Storm Gamma was located near latitude 22.4 North, longitude 88.0 West. Gamma is moving toward the north near 2 mph (4 km/h), and this general motion with a further decrease in forward speed is expected today. Gamma should turn toward the west or west-southwest tonight or Monday, and a slow southwestward motion should continue Monday night through early Wednesday. 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 are near 60 mph (95 km/h) with higher gusts. Little change in strength is expected through this evening. Gradual weakening is anticipated to begin later tonight or on Monday and continue into Tuesday. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure based on data from an Air Force Reserve reconnaissance aircraft is 997 mb (29.44 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 2 to 4 inches with isolated maximum amounts of 6 inches across portions of northern Yucatan and far western Cuba through early Tuesday. This rainfall may prolong or enhance any ongoing flash flooding. Through the middle of the week, a separate area of significant rain is possible in the Mexican states of Campeche, Tabasco, and southeast Veracruz, with rainfall of 4 to 6 inches and isolated maximum amounts of 8 inches. This rainfall may produce life-threatening flash floods and mudslides. Another remote area of heavy rain associated with Gamma is expected to bring additional accumulations of 1 to 3 inches and isolated maximum amounts of 5 inches in southern Guatemala towards the Gulf of Fonseca region between eastern El Salvador, southern Honduras, and northwest Nicaragua. WIND: Tropical storm conditions should continue within portions of the Tropical Storm Warning area on northern coast of the Yucatan through today. Tropical Storm conditions are possible within the Tropical Storm Watch area later today through Monday. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Brown

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