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| #927839 (Received by flhurricane at: 4:45 AM 31.May.2018) TCPAT1 BULLETIN Post-Tropical Cyclone Alberto Advisory Number 25 NWS Weather Prediction Center College Park MD AL012018 500 AM EDT Thu May 31 2018 ...ALBERTO BECOMES A POST-TROPICAL CYCLONE AS IT ATTEMPTS TO EXIT NORTHEASTERN LOWER MICHIGAN... ...HEAVY RAINFALL THREAT FADING NEAR ITS CENTER... SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...44.9N 83.9W ABOUT 20 MI...30 KM WSW OF ALPENA MICHIGAN MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 35 MPH...55 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES WATCHES AND WARNINGS -------------------- Flash Flood Watches remain in effect for the western Carolinas, northwest Virginia, and far eastern West Virginia. DISCUSSION AND OUTLOOK ---------------------- At 500 AM EDT (0900 UTC), the center of Post-Tropical Cyclone Alberto, now a wave of low pressure along a frontal zone, was located near latitude 44.9 North, longitude 83.9 West. The post-tropical cyclone is moving toward the north-northeast near 35 mph (55 km/h) and this motion is expected to continue until it attempts to merge with an approaching frontal wave in southeast Ontario early this afternoon. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. The estimated minimum central pressure is 994 mb (29.36 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Additional rainfall of 1 to 2 inches, with isolated higher amounts, will be possible within the convergent flow well to the southeast of Alberto across the western Carolinas and near the Blue Ridge Mountains of Virginia this morning. Isolated to scattered flash flooding will remain a possibility across this area. WIND: Wind gusts approaching tropical-storm force (39 mph or 62 km/h) will fade this morning across southeast Lower Michigan as the system pulls away to the northeast. For more information on rainfall totals please see the Storm Summary available at www.wpc.ncep.noaa.gov/discussions/nfdscc5.html NEXT ADVISORY ------------- This is the last public advisory issued by the Weather Prediction Center on this system. $$ Forecaster Roth |
