000 WTNT33 KNHC 082345 TCPAT3 BULLETIN Hurricane Katia Intermediate Advisory Number 13A NWS National Hurricane Center Miami FL AL132017 Issued by the NWS Weather Prediction Center College Park MD 700 PM CDT Fri Sep 08 2017 ...AIR FORCE PLANE EN ROUTE TO KATIA... ...DANGEROUS STORM SURGE EXPECTED IN MEXICO... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...20.9N 96.8W ABOUT 130 MI...210 KM SE OF TAMPICO MEXICO ABOUT 130 MI...210 KM N OF VERACRUZ MEXICO MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WSW OR 250 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...972 MB...28.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Cabo Rojo to Laguna Verde A Tropical Storm Warning is in effect for... * North of Cabo Rojo to Rio Panuco * South of Laguna Verde to Puerto Veracruz A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be completed. 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 700 PM CDT (0000 UTC), the center of Hurricane Katia was located near latitude 20.9 North, longitude 96.8 West. Katia is moving toward the west-southwest near 7 mph (11 km/h) and this motion is expected to continue through Saturday. The center of Katia will make landfall in Mexico late tonight or early Saturday. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Little change in strength is expected prior to landfall, followed by rapid weakening thereafter. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km). The estimated minimum central pressure is 972 mb (28.71 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: A dangerous storm surge will raise water levels by as much as 5 to 8 feet above normal tide levels near and to the north of where Katia makes landfall. Near the coast, the surge will be accompanied by large and destructive waves. 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: Hurricane conditions are expected within portions of the hurricane warning area tonight or early Saturday, with tropical storm conditions 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 1000 PM CDT. $$ Forecaster Roth/Lamers/Blake