ZCZC MIATCPEP5 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Depression Lorena Advisory Number 20 NWS National Hurricane Center Miami FL EP152019 300 AM MDT Sun Sep 22 2019 ...LORENA WEAKENS TO A DEPRESSION NEAR THE COAST OF WESTERN MAINLAND MEXICO... ...EXPECTED TO MOVE INLAND SOON AND RAPIDLY WEAKEN... SUMMARY OF 300 AM MDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...28.3N 111.5W ABOUT 40 MI...70 KM WNW OF GUAYMAS MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...N OR 350 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has discontinued the Tropical Storm warning for western mainland Mexico. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 AM MDT (0900 UTC), the center of Tropical Depression Lorena was located near latitude 28.3 North, longitude 111.5 West. The depression is moving toward the north near 10 mph (17 km/h), and this general motion is expected to continue during the next 12 to 24 hours. On the forecast track, the center of Lorena is expected to cross the coast of mainland Mexico during the next few hours, followed by a motion across northwestern Mexico. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Little change in strength is likely before landfall. After landfall, Lorena is expected to rapidly weaken, and the system is forecast to dissipate over northwestern Mexico later today. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Lorena can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP5 and WMO header WTPZ45 KNHC and on the web at www.hurricanes.gov/text/MIATCDEP5.shtml. RAINFALL: Lorena is expected to produce total rain accumulations of 3 to 6 inches over central Sonora, and additional rainfall of less than one inch over Baja California Sur through today. This rainfall may result in life-threatening flash floods in Sonora. SURF: Swells generated by Lorena will continue to affect portions of the western coast of Mexico today before subsiding on 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 900 AM MDT. $$ Forecaster Stewart NNNN