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| #1103560 (Received by flhurricane at: 7:35 PM 19.Aug.2022) TCPAT4 BULLETIN Potential Tropical Cyclone Four Intermediate Advisory Number 1A NWS National Hurricane Center Miami FL AL042022 700 PM CDT Fri Aug 19 2022 ...TROPICAL STORM CONDITIONS AND HEAVY RAINFALL EXPECTED IN NORTHEASTERN MEXICO AND SOUTHERN TEXAS THIS WEEKEND... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...21.3N 94.9W ABOUT 350 MI...565 KM SSE OF MOUTH OF THE RIO GRANDE MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The Gulf coast of Mexico from Boca de Catan northward to the Mouth of the Rio Grande River * The lower Texas coast from Port Mansfield southward to the Mouth of the Rio Grande River A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 700 PM CDT (0000 UTC), the disturbance was centered near latitude 21.3 North, longitude 94.9 West. The system is moving toward the northwest near 14 mph (22 km/h), and this motion is expected to continue for the next couple of days. On the forecast track, the disturbance is expected to approach the coast of northeastern Mexico on Saturday and make landfall there Saturday night. Maximum sustained winds remain near 35 mph (55 km/h) with higher gusts. Slow strengthening is expected through landfall, and the disturbance is forecast to become a tropical storm tonight or Saturday. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high ...80 percent. The estimated minimum central pressure is 1009 mb (29.80 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Four can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC. WIND: Tropical storm conditions are expected to occur in the warning area beginning Saturday afternoon or evening. RAINFALL: The Potential Tropical Cyclone is expected to produce total rainfall amounts of 3 to 6 inches, with isolated totals of 8 inches, along the eastern coast of Mexico from the northern portions of the state of Veracruz across the state of Tamaulipas. Rainfall totals of 1 to 3 inches with isolated higher amounts possible across far south Texas. 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... Mouth of Rio Grande to Port Mansfield TX...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. Storm surge could raise water levels by as much as 1 to 2 feet above normal tide levels along the immediate coast of northeastern Mexico near and to the north of where the center makes landfall. SURF: Swells generated by this system are forecast to affect eastern Mexico and southern Texas this weekend. 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 1000 PM CDT. $$ Forecaster Cangialosi/Bucci |
