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Hurricane Delta Public Advisory Number 10A
2020-10-07 07:52:33| National Hurricane Center (Atlantic)
Issued at 100 AM CDT Wed Oct 07 2020 000 WTNT31 KNHC 070552 TCPAT1 BULLETIN Hurricane Delta Intermediate Advisory Number 10A NWS National Hurricane Center Miami FL AL262020 100 AM CDT Wed Oct 07 2020 ...HURRICANE DELTA AIMING FOR THE NORTHEAST YUCATAN COAST WITH A LIFE-THREATENING STORM SURGE AND STRONG WINDS... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...20.0N 85.7W ABOUT 80 MI...130 KM ESE OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...972 MB...28.70 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. 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 Progreso Mexico 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. Interests along the northern Gulf of Mexico coast should monitor the progress of Delta. Hurricane and Storm Surge Watches will likely be issued for a portion of this area later today. 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 Hurricane Delta was located by a NOAA Hurricane Hunter aircraft near latitude 20.0 North, longitude 85.7 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 day or so. A slower northwestward to north-northwestward motion is forecast to begin on Thursday, and a northward motion is expected Thursday night and Friday. On the forecast track, the center of Delta will move over the northeastern portion of the Yucatan Peninsula this morning. Delta is forecast to move over the southern Gulf of Mexico this afternoon, be over the southern or central Gulf of Mexico through Thursday, and approach the northern Gulf coast on Friday. Maximum sustained winds have decreased to near 120 mph (195 km/h) with higher gusts. Delta is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is expected before the center reaches the coast of the Yucatan peninsula. 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 Wednesday night and Thursday. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). NOAA buoy 42056 recently measured a sustained wind of 82 mph (132 km/h) and a gust to 94 mph (151 km/h), and a minimum central pressure of 976 mb (28.82 inches). The estimated minimum central pressure based on NOAA Hurricane Hunter aircraft data is 972 mb (28.70 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: A life-threatening storm surge will raise water levels in areas of onshore winds by as much as 8 to 12 ft above normal tide levels along the northern coast of the Yucatan Peninsula from Cabo Catoche to Progresso, and 6 to 8 ft above normal tide levels along the eastern coast of the Yucatan Peninsula from Tulum to Cabo Catoche. Near the coast, the surge will be accompanied by large and destructive waves. WIND: In the Yucatan Peninsula, extremely dangerous hurricane conditions are expected in portions of the warning area during the next several hours, with tropical storm conditions beginning in the next few hours. Tropical storm conditions are expected in the tropical storm warning area overnight. In Cuba, tropical storm conditions are expected overnight in the warning area. 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 produce 4 to 8 inches of rain, with isolated maximum totals of 12 inches, over portions of the central Gulf Coast. These rainfall amounts may lead to flash, urban and minor river flooding. Heavy rainfall will eventually spread into the Tennessee Valley, and interior southeastern United States as well. SURF: Swells generated by Delta will affect 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 400 AM CDT. $$ Forecaster Blake
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