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Tropical Storm Nora Public Advisory Number 4
2021-08-26 16:47:01| National Hurricane Center (East Pacific)
Issued at 1000 AM CDT Thu Aug 26 2021 000 WTPZ34 KNHC 261446 TCPEP4 BULLETIN Tropical Storm Nora Advisory Number 4 NWS National Hurricane Center Miami FL EP142021 1000 AM CDT Thu Aug 26 2021 ...TROPICAL STORM NORA FORMS SOUTH OF MEXICO... ...HURRICANE WATCH ISSUED FOR A PORTION OF THE SOUTHWESTERN COAST OF MEXICO... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...12.5N 100.8W ABOUT 310 MI...500 KM S OF ACAPULCO MEXICO ABOUT 505 MI...815 KM SSE OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Hurricane Watch from Lazaro Cardenas to Cabo Corrientes, Mexico. A Tropical Storm Watch has been issued east of Lazaro Cardenas to Tecpan de Galeana, Mexico. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Lazaro Cardenas to Cabo Corrientes Mexico A Tropical Storm Watch is in effect for... * East of Lazaro Cardenas to Tecpan de Galeana Mexico A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the west-central coast of Mexico should monitor the progress of Nora. Warnings or additional watches will likely be required later today and tonight. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Tropical Storm Nora was located near latitude 12.5 North, longitude 100.8 West. Nora is moving toward the west-northwest near 7 mph (11 km/h), and this general motion is expected to continue through this evening. A motion toward the northwest and north-northwest is forecast to begin overnight and continue through Sunday. On the forecast track, the center of Nora will approach the southwestern coast of Mexico on Friday and be very near the coast on Saturday and Sunday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Additional strengthening is forecast during the next few days, and Nora is expected to become a hurricane by late Saturday. Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 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 possible within the hurricane watch area Saturday and Sunday, with tropical storm conditions possible by late Friday. Tropical storm conditions are possible within the tropical storm watch area beginning Friday or Friday night. RAINFALL: Nora is expected to produce heavy rains over coastal sections of the Mexican states of Oaxaca, 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. As a result, life-threatening flash flooding and mudslides may occur. SURF: Swells generated by Nora are expected to begin affecting the southern coast of Mexico today and will spread northward to the southwestern coast of Mexico through the end of the 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 intermediate advisory at 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Berg
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