Issued at 1100 AM EDT Sat Jul 05 2025
530 WTNT33 KNHC 051503 CCA TCPAT3 BULLETIN Tropical Storm Chantal Advisory Number 4...Corrected NWS National Hurricane Center Miami FL AL032025 1100 AM EDT Sat Jul 05 2025 Corrected storm position in Discussion and Outlook section ...TROPICAL STORM CONDITIONS EXPECTED TO BEGIN IN PORTIONS OF THE COASTAL CAROLINAS LATER TODAY... ...TROPICAL STORM WARNING EXTENDED NORTHWARD IN NORTH CAROLINA... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...31.1N 78.7W ABOUT 135 MI...220 KM SSE OF CHARLESTON SOUTH CAROLINA ABOUT 220 MI...355 KM SSW OF WILMINGTON NORTH CAROLINA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 1 MPH...2 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning has been extended northward to Surf City, NC. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * South Santee River, SC to Surf City, NC A Tropical Storm Watch is in effect for... * Edisto Beach to South Santee River, SC A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 12 to 24 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 12 hours. Interests elsewhere along the southeast coast of the United States should monitor the progress of Chantal. 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 1100 AM EDT (1500 UTC), the center of Tropical Storm Chantal was located near latitude 31.1 North, longitude 78.7 West. Chantal is moving toward the north near 1 mph (2 km/h). A slow motion toward the north-northwest is expected to begin later today, followed by a turn to the northeast by Sunday night. On the forecast track, the center of Chantal is expected to move across the coast of South Carolina Sunday morning. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Some strengthening is expected before Chantal reaches the coast. Tropical-storm-force winds extend outward up to 90 miles (150 km) primarily east of the center. The estimated minimum central pressure based on dropsonde data is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Chantal can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. WIND: Tropical storm conditions are expected in the warning area beginning this evening and continuing through Sunday morning. Tropical storm conditions are possible in the watch area beginning later today. RAINFALL: Tropical Storm Chantal is expected to produce heavy rainfall across portions of the coastal plain of the Carolinas through Monday. Storm total rainfall of 2 to 4 inches, with local amounts up to 6 inches, is expected and these rains could cause flash flooding. For a complete depiction of forecast rainfall and flash flooding associated with Tropical Storm Chantal, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_at3.shtml?rainqpf STORM SURGE: The combination of storm surge and 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... South Santee River, SC to Surf City, NC...1-3 ft Edisto Beach, SC to South Santee River, SC...1-2 ft TORNADOES: Isolated tornadoes are possible tonight into Sunday along the coast of eastern South Carolina and much of North Carolina. SURF: The tropical storm is expected to bring life-threatening surf and rip currents along the coast from northeastern Florida to the Mid-Atlantic states during the next couple of days. A depiction of rip current risk for the United States can be found at: hurricanes.gov/refresh/graphics_at3+shtml/?ripCurrents NEXT ADVISORY ------------- Next intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT. $$ Forecaster Cangialosi/Konarik