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Potential Tropical Cyclone Two Public Advisory Number 1A
2019-07-10 19:31:17| National Hurricane Center (Atlantic)
Issued at 100 PM CDT Wed Jul 10 2019 000 WTNT32 KNHC 101731 TCPAT2 BULLETIN Potential Tropical Cyclone Two Intermediate Advisory Number 1A NWS National Hurricane Center Miami FL AL022019 100 PM CDT Wed Jul 10 2019 ...TROPICAL CYCLONE EXPECTED TO FORM BY THURSDAY OVER THE NORTH-CENTRAL GULF OF MEXICO... ...HEAVY RAINS AND FLOODING ALREADY OCCURRING OVER PORTIONS OF SOUTHEASTERN LOUISIANA... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...28.3N 86.7W ABOUT 155 MI...250 KM ESE OF THE MOUTH OF THE MISSISSIPPI RIVER MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...WSW OR 240 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...1011 MB...29.86 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A Storm Surge Watch is in effect for... * Mouth of the Pearl River to Morgan City A Tropical Storm Watch is in effect for... * Mouth of the Mississippi River to Morgan City A Storm Surge Watch means there is a possibility of life- threatening inundation...from rising water moving inland from the coastline...in the indicated locations during the next 48 hours. For a depiction of areas at risk...please see the National Weather Service Storm Surge Watch/Warning Graphic...available at hurricanes.gov. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area...generally within 48 hours. Interests elsewhere along the U.S. Gulf Coast from the Upper Texas Coast to the Florida Panhandle should monitor the progress of this system. Additional Tropical Storm or Hurricane watches could be issued later today or tonight west of Morgan City. 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 100 PM CDT (1800 UTC), the disturbance was centered near latitude 28.3 North, longitude 86.7 West. The system is moving toward the west-southwest near 8 mph (13 km/h). A motion toward the west-southwest or southwest is expected through Thursday morning, followed by a turn toward the west late Thursday and a turn toward the west-northwest on Friday. By early Saturday, a northwest motion is expected. On the forecast track, the system is expected to approach the central U.S. Gulf Coast this weekend. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. Strengthening is forecast during the next 72 hours, and the disturbance is forecast to become a tropical depression Thursday morning, a tropical storm Thursday night, and a hurricane on Friday. Shower and thunderstorm activity has gradually been increasing in coverage and organization, and the low is likely to become a tropical depression or a tropical storm in the next day or so. *Formation chance through 48 hours...high...near 100 percent *Formation chance through 5 days...high...near 100 percent The estimated minimum central pressure is 1011 mb (29.86 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: The combination of a dangerous 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 the Pearl River to Morgan City...3 to 5 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. RAINFALL: The system is expected to produce total rain accumulations of 6 to 12 inches near and inland of the central Gulf Coast through early next week, with isolated maximum rainfall amounts of 18 inches. Rainfall amounts exceeding 6 to 9 inches have already occurred across portions of the New Orleans metropolitan area today, which has resulted in flooding. WIND: Tropical storm conditions are possible within the watch area by late Thursday or early Friday. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Stewart
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