ZCZC MIATCPEP1 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Depression Narda Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL EP162019 100 AM CDT Mon Sep 30 2019 ...NARDA EMERGING INTO THE PACIFIC... ...EXPECTED TO RESTRENGTHEN INTO A TROPICAL STORM LATER THIS MORNING... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...21.0N 105.8W ABOUT 50 MI...85 KM SE OF LAS ISLAS MARIAS MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...1001 MB...29.56 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * San Blas to Topolobampo * Islas Marias A Tropical Storm Watch is in effect for... * Topolobampo to Guaymas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 12 hours for the Islas Marias, and within 24 to 36 hours elsewhere in the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 AM CDT (0600 UTC), the center of Tropical Depression Narda was located near latitude 21.0 North, longitude 105.8 West. The depression is moving toward the northwest near 18 mph (30 km/h), and this motion is expected to continue with some decrease in forward speed during the next couple of days. On the forecast track, the center of Narda will move near or over the Islas Marias archipelago in a few hours. Narda is then forecast to move over the Gulf of California near or just offshore the coast of northwestern mainland Mexico through Tuesday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Slow strengthening is forecast, and Narda is expected to become a tropical storm again later this morning. The estimated minimum central pressure based on nearby surface observations is 1001 mb (29.56 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions should soon begin in the Islas Marias, and will spread northward over the remainder of the Tropical Storm Warning area later today and Tuesday. RAINFALL: Narda is expected to produce total rain accumulations of 5 to 10 inches along the southwestern coast of Mexico from Guerrero to Nayarit, and 1 to 4 inches over Baja California Sur through Monday night. Isolated maximum amounts of 15 inches are possible from Oaxaca to Nayarit. This rainfall will cause life-threatening flash floods and mudslides, especially in mountainous terrain. SURF: Swells generated by Narda are affecting portions of the coast of southwestern Mexico. These swells are expected to spread northward and will likely cause life-threatening surf and rip current conditions along the west coast of mainland Mexico, along the east coast of Baja California Sur, and in the Islas Marias archipelago. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Pasch NNNN