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Tropical Depression Nora Public Advisory Number 18A
2021-08-30 07:32:24| National Hurricane Center (East Pacific)
Issued at 1200 AM MDT Mon Aug 30 2021 000 WTPZ34 KNHC 300532 TCPEP4 BULLETIN Tropical Depression Nora Intermediate Advisory Number 18A NWS National Hurricane Center Miami FL EP142021 1200 AM MDT Mon Aug 30 2021 ...NORA WEAKENS TO A DEPRESSION... ...HEAVY RAINS WILL CONTINUE TO SPREAD NORTHWARD ACROSS NORTHWEST MEXICO DURING THE NEXT COUPLE OF DAYS... SUMMARY OF 1200 AM MDT...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...25.0N 108.0W ABOUT 85 MI...135 KM SE OF LOS MOCHIS MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has discontinued all Tropical Storm Warnings. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM MDT (0600 UTC), the center of Tropical Depression Nora was located near the coast of Mexico at latitude 25.0 North, longitude 108.0 West. Nora is moving toward the north-northwest near 12 mph (19 km/h). This general motion is expected to continue until Nora dissipates inland later today. Maximum sustained winds have decreased to near 35 mph (55 km/h) with higher gusts. Nora has become very disorganized, and is forecast to dissipate inland later today. The estimated minimum central pressure is 1004 mb (29.65 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. RAINFALL: Heavy rainfall is likely along the west coast of Mexico from Nayarit to southern Sonora through late week as Nora lifts northward through the Gulf of California. Rainfall of 8 to 12 inches with maximum amounts of 20 inches is possible. This rainfall will produce life-threatening flash flooding and mudslides. Rainfall of 2 to 4 inches with maximum amounts of 6 inches is possible in Baja California Sur and northern Sonora. Toward the middle and latter part of the week, moisture associated with Nora is likely to bring heavy rainfall and the potential for scattered flash flooding to portions of the southwestern U.S. and central Rockies. SURF: Swells generated by Nora are affecting the southwestern coast of Mexico and will spread northward into the Gulf of California through Monday. 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 300 AM MDT. $$ Forecaster Pasch
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