ZCZC MIATCPAT3 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Depression Claudette Intermediate Advisory Number 10A NWS National Hurricane Center Miami FL AL032021 100 AM CDT Sun Jun 20 2021 ...HEAVY RAINS FROM CLAUDETTE PERSIST ACROSS PORTIONS OF THE SOUTHEASTERN UNITED STATES... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...32.9N 86.7W ABOUT 45 MI...75 KM S OF BIRMINGHAM ALABAMA ABOUT 145 MI...235 KM WSW OF ATLANTA GEORGIA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Cape Fear to Duck, North Carolina * Pamlico and Albemarle Sounds A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 36 to 48 hours. Interests elsewhere across the southeast U.S. should monitor the progress of this system. Tropical storm warnings will likely be required for a portion of the watch area this morning. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 100 AM CDT (0600 UTC), the center of Tropical Depression Claudette was located near latitude 32.9 North, longitude 86.7 West. The depression is moving toward the northeast near 13 mph (20 km/h). A turn toward the east-northeast is expected later today. On the forecast track, the system should cross portions of the southeast U.S. through Sunday night, and move over the coasts of the Carolinas into the western Atlantic Ocean on Monday. Maximum sustained winds remain near 30 mph (45 km/h) with higher gusts. These winds are mainly occurring over the Gulf of Mexico well to the south of the center. Little change in strength is expected today. However, the cyclone is forecast to become a tropical storm again when it moves across the Carolinas Sunday night or early Monday. The estimated minimum central pressure based on surface observations is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Claudette can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC, and on the web at www.hurricanes.gov/graphics_at3.shtml?key_messages. RAINFALL: Claudette is expected to produce additional rainfall totals of 2 to 4 inches with isolated maximum amounts of 8 inches across northern Alabama, northern Georgia, the Florida Panhandle, and South and North Carolina. Flash, urban and small stream flooding impacts, as well as new and renewed minor to isolated moderate river flooding are possible across these areas. Storm total rainfall is expected to be 5 to 10 inches with isolated 15 inch totals in southeast Louisiana, southern Mississippi, southern Alabama, and the western Florida panhandle. For the latest rainfall reports and wind gusts associated with Claudette, see the companion storm summary at WBCSCCNS3 with the WMO header ACUS43 KWBC or at the following link: https://www.wpc.ncep.noaa.gov/discussions/nfdscc3.html STORM SURGE: The combination of storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Cape Lookout, NC to NC/VA Border...1-3 ft Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Tropical storm conditions are possible in the watch area Sunday night and Monday. TORNADOES: A few tornadoes are possible overnight across southeast Alabama, the Florida Panhandle and southern Georgia, and across parts of Georgia and the Carolinas later today. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Blake NNNN