760 WTPZ32 KNHC 022100 TCPEP2 BULLETIN Tropical Storm Lorena Advisory Number 4 NWS National Hurricane Center Miami FL EP122025 Issued by the NWS Weather Prediction Center College Park MD 200 PM MST Tue Sep 02 2025 ...TROPICAL STORM LORENA STRENGTHENING AND FORECAST TO BECOME A HURRICANE TOMORROW... ...TROPICAL STORM WATCHES ISSUES FOR WESTERN PORTION OF BAJA CALIFORNIA SUR... SUMMARY OF 200 PM MST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...19.4N 109.0W ABOUT 310 MI...495 KM W OF MANZANILLO MEXICO ABOUT 250 MI...400 KM SSE OF CABO SAN LUCAS MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Tropical Storm Watch from Cabo San Lucas northward to Cabo San Lazaro on the western coast of Baja California Sur. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Cabo San Lucas northward to Cabo San Lazaro on the western coast of Baja California Sur in Mexico. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in southwestern Mexico and the Baja California peninsula should monitor the progress of this system. Additional watches may be required later tonight or on Wednesday. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM MST (2100 UTC), the center of Tropical Storm Lorena was located near latitude 19.4 North, longitude 109.0 West. Lorena is moving toward the northwest near 15 mph (24 km/h), and this motion is expected to continue for the next day or so before slowing and turning northward by Thursday into Friday and northeastward toward the Baja California peninsula and into Sonora by the weekend. Maximum sustained winds have increased to near 50 mph (85 km/h) with higher gusts. Additional strengthening is forecast during the next 24 hours, and Lorena is expected to become a hurricane on Wednesday. Gradual weakening is forecast to begin on Thursday into the weekend. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Lorena can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC. RAINFALL: Areas of heavy rainfall well east and northeast of Lorena will continue to impact portions of northwestern Mexico from the states of Colima to Sinaloa today, with isolated flash flooding possible in areas of mountainous terrain. Bands of heavy rainfall are expected to begin impacting Baja California Sur by Wednesday and southwestern Sonora by Thursday, with this rainfall potentially persisting through Friday. Rainfall totals of 4 to 8 inches, with maximum amounts of 12 inches possible across portions of Baja California Sur and southwestern Sonora through Friday. Uncertainty remains with these totals, and locally higher or lower amounts are possible depending on the track and strength of the system. Potentially significant flash flooding is a possibility. WIND: Tropical storm conditions are possible within the watch area by late Wednesday into Thursday. NEXT ADVISORY ------------- Next intermediate advisory at 500 PM MST. Next complete advisory at 800 PM MST. $$ Forecaster Gallina/Papin
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