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Tropical Storm Nora Public Advisory Number 10A
2021-08-28 07:54:36| National Hurricane Center (East Pacific)
Issued at 100 AM CDT Sat Aug 28 2021 000 WTPZ34 KNHC 280554 TCPEP4 BULLETIN Tropical Storm Nora Intermediate Advisory Number 10A NWS National Hurricane Center Miami FL EP142021 100 AM CDT Sat Aug 28 2021 ...NORA EXPECTED TO BECOME A HURRICANE LATER TODAY... ...HURRICANE WARNINGS ISSUED FOR PORTIONS OF THE COAST OF MAINLAND MEXICO... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...16.7N 105.0W ABOUT 260 MI...420 KM S OF CABO CORRIENTES MEXICO ABOUT 535 MI...860 KM SE OF CABO SAN LUCAS MEXICO MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Hurricane Warning from Manzanillo northward to Cabo Corrientes Mexico. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Manzanillo to Cabo Corrientes Mexico A Hurricane Watch is in effect for... * Lazaro Cardenas to south of Manzanillo Mexico A Tropical Storm Warning is in effect for... * Tecpan de Galeana to Manzanillo Mexico * North of Cabo Corrientes to San Blas Mexico A Tropical Storm Watch is in effect for... * North of San Blas to Mazatlan Mexico A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within the next 24 hours. Preparations to protect life and property should be rushed to completion. A Hurricane Watch means that hurricane conditions are possible within the watch area, in this case within the next 24 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case over the next 24-36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the northwestern coast of mainland Mexico and southern portions of Baja California Sur should monitor the progress of Nora. Additional watches and warnings will likely be required for portions of these areas tonight or on Saturday. 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 Nora was located near latitude 16.7 North, longitude 105.0 West. Nora is moving toward the north-northwest near 10 mph (17 km/h). A motion toward the northwest or north-northwest is expected through Monday. On the forecast track, the center of Nora is expected to approach the southwestern coast of Mexico later today and pass very near the coast of the states of Jalisco and Nayarit by later tonight. Nora is then forecast to approach and move into the Gulf of California on Sunday and Monday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast, and Nora is expected to become a hurricane later today. Nora is a large tropical storm. Tropical-storm-force winds extend outward up to 275 miles (445 km)from the center. The estimated minimum central pressure is 991 mb (29.27 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nora can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP4, WMO header WTPZ44 KNHC, and on the web at hurricanes.gov/graphics_ep4.shtml?key_messages. WIND: Hurricane conditions are expected in the hurricane warning area along the coast of mainland Mexico beginning later today. Hurricane conditions are also possible within the hurricane watch area later today. Tropical storm conditions are likely occurring over southern portions of the tropical storm warning area and will spread to the northern portions of the warning area later today. Tropical storm conditions are possible within the tropical storm watch area tonight and Sunday. RAINFALL: Heavy rain associated with Nora is expected across coastal sections of the Mexican states of Guerrero, Michoacan, Colima, and Jalisco. Rainfall totals of 8 to 12 inches are forecast through this weekend with isolated maximum amounts of 20 inches possible. This rainfall will produce life-threatening flash flooding and mudslides. As Nora continues northwest or north-northwest, heavy rainfall will move into the Baja California Sur late Sunday into Monday. Rainfall totals of 4 to 8 inches are forecast, with isolated maximum amounts of 12 inches possible across southern portions of Baja California Sur. Life-threatening flash flooding and mudslides may occur as a result. Toward the middle and latter part of next week, moisture associated with Nora may bring heavy rainfall to portions of the southwestern U.S. into the central Great Basin and central Rockies. SURF: Swells generated by Nora are affecting the southern and southwestern coast of Mexico and will spread northward to the coast of Baja California Sur and into the Gulf of California over the weekend and into early next week. 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 Papin/Beven
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