000 WTNT33 KNHC 201145 TCPAT3 BULLETIN Tropical Depression Claudette Intermediate Advisory Number 11A NWS National Hurricane Center Miami FL AL032021 700 AM CDT Sun Jun 20 2021 ...CLAUDETTE STILL PRODUCING HEAVY RAINS WITH POSSIBLE FLASH FLOODS OVER MUCH OF THE SOUTHEASTERN UNITED STATES... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...33.7N 84.8W ABOUT 25 MI...35 KM W OF ATLANTA GEORGIA ABOUT 390 MI...630 KM W OF CAPE FEAR NORTH CAROLINA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...ENE OR 60 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Little River Inlet to Duck, North Carolina * Pamlico and Albemarle Sounds A Tropical Storm Watch is in effect for... * South Santee River, South Carolina to Little River Inlet A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 24 to 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 24 to 36 hours. Interests elsewhere across the Carolinas should monitor the progress of this system. 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 700 AM CDT (1200 UTC), the center of Tropical Depression Claudette was located near latitude 33.7 North, longitude 84.8 West. The depression is moving toward the east-northeast near 13 mph (20 km/h). On the forecast track, the system should cross portions of the southeast U.S. through tonight, move over the coast of North Carolina into the western Atlantic Ocean on Monday, and be located south of Nova Scotia by late Tuesday. Maximum sustained winds remain near 30 mph (45 km/h) with higher gusts. Some re-strengthening is expected tonight, and Claudette is forecast to become a tropical storm again on Monday over eastern North Carolina. Further strengthening is possible over the western Atlantic Ocean through early Tuesday. Claudette is expected to become a post-tropical cyclone by late Tuesday. The estimated minimum central pressure from surface observations is 1007 mb (29.74 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 1 to 3 inches with isolated maximum amounts of 6 inches across Alabama, the Florida Panhandle, northern and central Georgia, and Upstate South Carolina through the morning hours. As the system tracks north and east, bands of heavy rain will occur across portions of central and southern Georgia, central and coastal South Carolina into eastern North Carolina through Monday morning resulting in rainfall totals of 2 to 4 inches with isolated maximum amounts of 8 inches. Considerable 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 of 5 to 10 inches with isolated 15 inch amounts was observed 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... NC/VA Border to Cape Lookout, NC...1-3 ft Cape Lookout, NC to Little River Inlet, SC...1-2 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 expected to begin in the warning area late tonight or early Monday. Tropical storm conditions are possible in the watch area tonight and Monday. TORNADOES: A few tornadoes are possible today across parts of Georgia and the Carolinas. NEXT ADVISORY ------------- Next complete advisory at 1000 AM CDT. $$ Forecaster Brown