Potential Tropical Cyclone Five Public Advisory Number 1

Issued at 1000 AM CDT Mon Aug 31 2026 000 WTNT35 KNHC 311455 TCPAT5 BULLETIN Potential Tropical Cyclone Five Advisory Number 1 NWS National Hurricane Center Miami FL AL052026 1000 AM CDT Mon Aug 31 2026 ...TROPICAL STORM WARNING ISSUED FOR PORTIONS OF THE UPPER TEXAS AND SOUTHWESTERN LOUISIANA COAST... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...27.8N 91.0W ABOUT 130 MI...210 KM S OF MORGAN CITY LOUISIANA ABOUT 230 MI...365 KM SE OF PORT ARTHUR TEXAS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...1013 MB...29.92 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Tropical Storm Warning has been issued for the northwestern Gulf Coast from Port Bolivar, Texas, to the Vermilion/Cameron Parish Line in Louisiana. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Port Bolivar to the Vermilion/Cameron Parish Line A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 24-36 hours. 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 1000 AM CDT (1500 UTC), the disturbance was centered near latitude 27.8 North, longitude 91.0 West. The system is moving toward the west-northwest near 5 mph (7 km/h), and this general motion is expected to continue for the next day or two. On the forecast track, the center of the system is predicted reach the northwestern Gulf Coast within the warning area on Tuesday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some strengthening is expected during the next day or so, and the system is forecast to become a tropical storm by tonight. * Formation chance through 48 hours...high...80 percent. * Formation chance through 7 days...high...80 percent. The estimated minimum central pressure is 1013 mb (29.92 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Potential Tropical Cyclone Five can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC. WIND: Tropical storm conditions are expected to reach the coast within the warning area on Tuesday, making outside preparations difficult or dangerous. 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... High Island, TX to Vermilion/Iberia Parish Line, LA...1-3 ft The deepest water will occur along the immediate coast near and to the east of the center. 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. For a complete depiction of areas at risk of storm surge inundation, please see the National Weather Service Peak Storm Surge Graphic, available at hurricanes.gov/graphics_at5.shtml?peakSurge. RAINFALL: PTC Five is expected to produce rainfall totals of 3 to 6 inches with maximum totals of 9 inches for parts of the Upper Texas Coast inland through east-central Texas, with 2 to 3 inches for Southwest Louisiana. This rainfall could produce flash flooding, especially in low-lying and urban areas. NEXT ADVISORY ------------- Next intermediate advisory at 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Reinhart