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Tropical Depression Katia Intermediate Advisory Number 15A NWS National Hurricane Center Miami FL AL132017 Issued by the NWS Weather Prediction Center College Park MD 700 AM CDT Sat Sep 09 2017 ...KATIA WEAKENS TO A DEPRESSION NEAR THE SIERRA MADRE MOUNTAINS... ...HEAVY RAINFALL THREAT CONTINUES... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...20.1N 97.7W ABOUT 145 MI...235 KM S OF TAMPICO MEXICO ABOUT 115 MI...185 KM WNW OF VERACRUZ MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WSW OR 255 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has discontinued all Tropical Storm Warnings. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: None. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 700 AM CDT (1200 UTC), the center of Tropical Depression Katia was located near latitude 20.1 North, longitude 97.7 West. Katia is moving toward the west-southwest near 2 mph (4 km/h) and it is expected to continue drifting toward the west-southwest until dissipation. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Katia is expected to dissipate over the mountains of Mexico later today. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- 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. STORM SURGE: Water levels along the coast should continue to decrease as the center dissipates and winds subside. SURF: Swells generated by Katia will begin to decrease along the coast of southeastern Mexico today. These swells may still cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1000 AM CDT. $$ Forecaster R Ballard

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