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#902083 (Received by flhurricane at: 1:59 AM 09.Sep.2017) TCPAT3 BULLETIN Tropical Storm Katia Intermediate Advisory Number 14A NWS National Hurricane Center Miami FL AL132017 Issued by the NWS Weather Prediction Center College Park MD 100 AM CDT Sat Sep 09 2017 ...KATIA BECOMES A TROPICAL STORM AS IT MOVES FURTHER INTO MEXICO... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...20.3N 97.4W ABOUT 135 MI...220 KM SSE OF TAMPICO MEXICO ABOUT 110 MI...175 KM NW OF VERACRUZ MEXICO MAXIMUM SUSTAINED WINDS...45 MPH...70 KM/H PRESENT MOVEMENT...SW OR 220 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Warning between Cabo Rojo and Laguna Verde has been changed to a Tropical Storm Warning. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Rio Panuco to Puerto Veracruz A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 100 AM CDT (0600 UTC), the center of Tropical Storm Katia was located near latitude 20.3 North, longitude 97.4 West. Katia is moving toward the southwest near 8 mph (13 km/h) and this general motion is expected to continue until dissipation today. Maximum sustained winds are near 45 mph (70 km/h) with higher gusts. Continued rapid weakening is forecast. Tropical-storm-force winds extend outward up to 65 miles (100 km). The estimated minimum central pressure is 998 mb (29.47 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: Some inundation along the coast due to storm surge will remain possible this morning. Water levels along the coast should begin to decrease as the storm moves inland and winds subside. RAINFALL: Katia is expected to produce total rain accumulations of 10 to 15 inches over northern Veracruz, eastern Hidalgo, and Puebla. Katia is also expected to produce total rain accumulations of 2 to 5 inches over southern Tamaulipas, eastern San Luis Potosi, western Hidalgo, eastern Queretaro, and southern Veracruz through Saturday evening. Isolated maximum amounts of 25 inches are possible in northern Veracruz, eastern Hidalgo, Puebla, and San Luis Potosi. This rainfall will likely cause life-threatening flash floods and mudslides, especially in areas of mountainous terrain. WIND: Tropical storm conditions are expected to continue within the tropical storm warning areas. SURF: Swells generated by Katia will continue to affect portions of the coast of southeastern Mexico during the next couple of days. 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 400 AM CDT. $$ Forecaster Lamers/Roth |