####018003481#### WTPZ32 KNHC 230551 TCPEP2 BULLETIN Tropical Storm Norma Intermediate Advisory Number 22A NWS National Hurricane Center Miami FL EP172023 1200 AM MDT Mon Oct 23 2023 ...NORMA TAKES A SOUTHEASTWARD JOG AS IT NEARS THE COAST OF MAINLAND MEXICO... ...RAINFALL CONTINUES OVER PORTIONS OF WESTERN MAINLAND MEXICO... SUMMARY OF 1200 AM MDT...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...24.6N 108.8W ABOUT 85 MI...135 KM W OF CULIACAN MEXICO ABOUT 85 MI...135 KM S OF LOS MOCHIS MEXICO MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...E OR 100 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Huatabampito to Mazatlan A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM MDT (0600 UTC), the center of Tropical Storm Norma was located near latitude 24.6 North, longitude 108.8 West. Norma has moved southeastward during the past several hours, but an eastward motion near 5 mph (7 km/h) is expected to resume later this morning. On the forecast track, the center of Norma is forecast to approach the west coast of mainland Mexico overnight and move inland within the tropical storm warning area later this morning. Recently received satellite wind data indicate that the maximum sustained winds have decreased to near 45 mph (75 km/h) with higher gusts. Norma is expected to move over the west coast of mainland Mexico as a tropical storm later this morning. Rapid weakening is anticipated once Norma moves inland over mainland Mexico. Tropical-storm-force winds extend outward up to 150 miles (240 km) from the center. The estimated minimum central pressure is 994 mb (29.35 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Norma can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC and on the web at hurricanes.gov/text/MIATCDEP2.shtml WIND: Tropical storm conditions are ongoing within portions of the tropical storm warning area. RAINFALL: Norma will produce additional rainfall totals of 4 to 6 inches with storm total maxima of 18 inches in and near Sinaloa through today. These rains will produce flash and urban flooding, along with mudslides in areas of higher terrain. STORM SURGE: Coastal flooding is possible along the west coast of mainland Mexico within the tropical storm warning area. Near the coast, the coastal flooding will be accompanied by large and dangerous waves. SURF: Swells generated by Norma will continue to affect the coast of southwestern and west-central Mexico and Baja California Sur for the next day or two. 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 Brown