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Tropical Storm Nora Public Advisory Number 7A
2021-08-27 13:36:44| National Hurricane Center (East Pacific)
Issued at 700 AM CDT Fri Aug 27 2021 076 WTPZ34 KNHC 271136 TCPEP4 BULLETIN Tropical Storm Nora Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL EP142021 700 AM CDT Fri Aug 27 2021 ...HEAVY RAINS FROM NORA SPREADING ONSHORE THE COASTS OF OAXACA, GUERRERO, AND MICHOACAN... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...14.8N 103.7W ABOUT 240 MI...390 KM SSW OF LAZARO CARDENAS MEXICO ABOUT 305 MI...490 KM S OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Lazaro Cardenas to Cabo Corrientes Mexico A Tropical Storm Warning is in effect for... * Tecpan de Galeana to Cabo Corrientes Mexico A Tropical Storm Watch is in effect for... * North of Cabo Corrientes to San Blas 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 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. Interests elsewhere along the west-central coast of 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 later today or tonight. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 700 AM CDT (1200 UTC), the center of Tropical Storm Nora was located near latitude 14.8 North, longitude 103.7 West. Nora is moving toward the west-northwest near 12 mph (19 km/h). A turn toward the northwest is expected later today, followed by a northwestward or north-northwestward motion on Saturday and Sunday. On the forecast track, the center of Nora will approach the southwestern coast of Mexico today and tonight and pass very near the coast Saturday and Saturday night. Nora will then approach the southern portion of Baja California Sur on Sunday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is forecast during the next few days, and Nora is expected to become a hurricane on Saturday. Nora remains a large tropical storm, with tropical-storm-force winds extending outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 999 mb (29.50 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, with tropical storm conditions beginning later today. Tropical storm conditions are expected within the tropical storm warning area beginning this morning. Tropical storm conditions are possible within the tropical storm watch area beginning on Saturday. RAINFALL: Tropical Storm 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. Life-threatening flash flooding and mudslides may occur. SURF: Swells generated by Nora are affecting the southern coast of Mexico and will spread northward to the southwestern coast of Mexico later today and into the weekend. 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 1000 AM CDT. $$ Forecaster Berg
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