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| #1020151 (Received by flhurricane at: 1:59 PM 06.Oct.2020) TCPAT1 BULLETIN Hurricane Delta Intermediate Advisory Number 8A NWS National Hurricane Center Miami FL AL262020 200 PM EDT Tue Oct 06 2020 ...CATEGORY FOUR HURRICANE DELTA TAKING AIM ON THE NORTHEASTERN COAST OF THE YUCATAN PENINSULA... ...EXPECTED TO BRING A LIFE-THREATENING STORM SURGE AND EXTREME WINDS... SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...18.5N 83.5W ABOUT 260 MI...420 KM ESE OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Cayman Islands have discontinued the Tropical Storm Warning for all of the Cayman Islands. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Tulum to Dzilam Mexico * Cozumel A Tropical Storm Warning is in effect for... * Cuba province of Pinar del Rio * Isle of Youth * Punta Herrero to Tulum Mexico * Dzilam to Progresso Mexico A Tropical Storm Watch is in effect for... * Cuba province of La Habana A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM EDT (1800 UTC), the center of Hurricane Delta was located near latitude 18.5 North, longitude 83.5 West. Delta is moving toward the west-northwest near 16 mph (26 km/h). A west- northwestward to northwestward motion is expected over the next couple of days. A slower northwestward to north-northwest motion is forecast to begin by late Wednesday or Wednesday night. On the forecast track, the center of Delta is expected to continue to pass southwest of the Cayman Islands through early this afternoon, and move over the northeastern portion of the Yucatan peninsula late tonight or early Wednesday. Delta is forecast to move over the southern Gulf of Mexico Wednesday afternoon, and be over the southern or central Gulf of Mexico through Thursday. Reports from a NOAA Hurricane Hunter aircraft indicate that the maximum sustained winds have increased to near 140 mph (220 km/h) with higher gusts. Delta is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some additional strengthening is possible during the next 24 hours, and Delta is forecast to be an extremely dangerous category 4 hurricane when it reaches the Yucatan peninsula Wednesday. Although some weakening is likely when Delta moves over the Yucatan peninsula, re-strengthening is forecast when the hurricane moves over the southern Gulf of Mexico. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure from NOAA reconnaissance aircraft data is 956 mb (28.23 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Delta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. STORM SURGE: An extremely dangerous storm surge will raise water levels by as much as 7 to 11 ft above normal tide levels along the coast of the Yucatan peninsula from Cabo Catoche to Progresso, and 6 to 9 ft above normal tide levels from Tulum to Cabo Catoche. Near the coast, the surge will be accompanied by large and destructive waves. WIND: In the Yucatan Peninsula, hurricane conditions are expected in the warning area early Wednesday, with tropical storm conditions beginning later today or tonight. Tropical storm conditions are expected in the tropical storm warning area tonight and Wednesday. In Cuba, tropical storm conditions are expected tonight in the warning area and possible in the watch area near the same time. RAINFALL: Delta is expected to produce 4 to 6 inches of rain, with isolated maximum totals of 10 inches, across portions of the northern Yucatan Peninsula through midweek. This rainfall may result in areas of significant flash flooding. Over the next few days, Delta is expected to produce 2 to 4 inches of rain, with isolated higher amounts, across portions of the Cayman Islands and western Cuba. This rainfall may result in areas of flash flooding and mudslides. Later this week, Delta is expected to bring heavy rainfall and flash and urban flooding to portions of the central Gulf Coast, Tennessee Valley, and southeastern United States. SURF: Swells generated by Delta will affected land areas around the northwestern Caribbean Sea for the next day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 PM EDT. $$ Forecaster Brown |
