April 27-28, 2011 Severe Weather

Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

...EF-0 TORNADO CONFIRMED IN GREEN RIDGE MARYLAND... LOCATION...3 MI NORTHWEST OF GREEN RIDGE IN ALLEGANY COUNTY MARYLAND DATE...APRIL 28 2011 ESTIMATED TIME...1:35 AM TO 1:35AM EDT MAXIMUM EF-SCALE RATING...EF-0 MAXIMUM WIND SPEED...80 MPH MAXIMUM PATH WIDTH...75 YARDS LENGTH...0.1 MILES BEGINNING LAT/LON...39.601N / 78.479W ENDING LAT/LON...39.602N / 78.477W * FATALITIES...NONE * INJURIES...NONE * THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO CHANGE PENDING FINAL REVIEW OF THE EVENT/S/ AND PUBLICATION IN NWS STORM DATA. ...SUMMARY... A BRIEF TORNADO OCCURRED IN GREEN RIDGE STATE FOREST. DAMAGE WAS FOUND ALONG A SWITCHBACK ON MERTENS RD BETWEEN STAFFORD AND EAST VALLEY ROADS. NUMEROUS TREES WERE UPROOTED AND/OR TOPPED IN A SMALL AREA OF MERTENS ROAD. TREE CANOPIES SHOWED EVIDENCE OF CONVERGENT FLOW NEAR THE DAMAGE TRACK. THIS TORNADO HAS BEEN RATED EF-0 WITH MAX WINDS ESTIMATED AT 80 MPH AND A WIDTH OF 75 YARDS. THE TOUCHDOWN TIME IS BASED UPON RADAR. DUE TO THE REMOTE AND RUGGED NATURE OF THE TERRAIN...THE DAMAGE TRACK COULD POSSIBLY EXTEND FARTHER ALONG EITHER END OF THE PATH.