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Subtropical Storm Alberto Public Advisory Number 10
2018-05-27 22:38:47| National Hurricane Center (Atlantic)
Issued at 400 PM CDT Sun May 27 2018 000 WTNT31 KNHC 272038 TCPAT1 BULLETIN Subtropical Storm Alberto Advisory Number 10 NWS National Hurricane Center Miami FL AL012018 400 PM CDT Sun May 27 2018 ...ALBERTO TURNS NORTH-NORTHWESTWARD WITH NO CHANGE IN STRENGTH... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...28.0N 85.2W ABOUT 165 MI...265 KM W OF TAMPA FLORIDA ABOUT 120 MI...190 KM S OF APALACHICOLA FLORIDA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning along the west coast of Florida has been discontinued south of the Anclote River. The Storm Surge Watch has been discontinued along the northern Gulf Coast west of Navarre, Florida. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * Crystal River to Navarre Florida A Tropical Storm Warning is in effect for... * Anclote River to the Mississippi/Alabama border 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. 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 Warning means that tropical storm conditions are expected somewhere within the warning area. 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 400 PM CDT (2100 UTC), the center of Subtropical Storm Alberto was located near latitude 28.0 North, longitude 85.2 West. The storm is moving toward the north-northwest near 12 mph (19 km/h). A north-northwest motion with some decrease in forward speed is expected tonight. A north-northwestward to northward motion is expected Monday through Wednesday. On the forecast track, the center of Alberto will move over the northern Gulf of Mexico tonight and approach the northern Gulf Coast in the warning area on Monday. Heavy rainfall and tropical storm conditions will likely reach the northern Gulf Coast well before the arrival of the center of Alberto. Alberto is expected to move inland into the Tennessee Valley on Tuesday and Wednesday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Little change in strength is forecast before Alberto reaches the northern Gulf Coast. Steady weakening is expected after landfall, and Alberto is forecast to become a tropical depression Monday night or Tuesday. Winds of 40 mph extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 994 mb (29.36 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Alberto is expected to produce the following rain accumulations through Tuesday: Central Cuba...Additional 5 to 10 inches, isolated storm-totals of 20-25 inches. The Florida panhandle into much of Alabama and western Georgia...4 to 8 inches, isolated 12 inches. The Florida Keys and south Florida...Additional 3 to 6 inches, isolated storm totals of 10 inches. Rest of the Florida peninsula...1 to 4 inches. Rest of the Southeast and Tennessee Valley into the lower mid Atlantic from Tennessee east through the Carolinas...2 to 6 inches. Rains in Cuba could produce life-threatening flash floods and mudslides. Flooding and flash flooding are possible in the southeast United States, including Florida. WIND: Tropical storm conditions will spread northward within the warning area tonight and continue through Monday. 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... Crystal River to Navarre Florida...2 to 4 ft The deepest water will occur along the immediate coast. 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. TORNADOES: Isolated tornadoes are possible through tonight across the central and northern Florida peninsula. SURF: Swells generated by Alberto will affect the eastern and northern Gulf Coast through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. For more information, consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 700 PM CDT. Next complete advisory at 1000 PM CDT. $$ Forecaster Brown
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