Severe Weather - May 3-5, 2010

Heavy Rainfall Threat for Mid-Atlantic into Southern New England; Fire Weather Hazards for the West

Heavy rain and isolated severe thunderstorms may cause flash flooding in the northern Mid-Atlantic today. The Mid-Atlantic and Southeast heatwave is slowly easing, while cooler, drier air spreads across the Central and Eastern U.S. for the start of August. Critical fire conditions persist in the Pacific Northwest and Four Corners due to dry storms and gusty winds. Read More >

PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 154 PM EDT SAT MAY 8 2010 ...STORM DAMAGE SURVEY COMPLETED FOR DARKE AND MIAMI COUNTIES... A NATIONAL WEATHER SERVICE STORM SURVEY COMPLETED SATURDAY MORNING DETERMINED THAT THE DAMAGE REPORTED ACROSS DARKE AND MIAMI COUNTIES FROM THUNDERSTORMS FRIDAY EVENING MAY 7TH WERE THE RESULT OF STRAIGHT LINE WINDS AND NOT A TORNADO. ANALYSIS OF THE DAMAGE...WHICH INCLUDED NUMEROUS DOWNED TREES AND SEVERAL BARNS WHICH WERE DESTROYED...AND REPORTS FROM SPOTTERS IN THE AREA CONFIRMED THAT THE DAMAGE FIT THE CHARACTERISTICS OF THAT CAUSED BY STRAIGHT LINE WINDS. IN ADDITION...RADAR DATA FROM THE NATIONAL WEATHER SERVICE IN WILMINGTON SHOWED NO INDICATION OF SIGNIFICANT ROTATION WITHIN THE THUNDERSTORM. THE STORMS MOVING IN EXCESS OF 60 MPH...COUPLED WITH AN ENVIRONMENT SUPPORTIVE OF SIGNIFICANT WIND GUSTS...LIKELY WERE THE MAIN CONTRIBUTORS TO THE PATH OF WIND DAMAGE SURVEYED SATURDAY MORNING. BASED ON THE DAMAGE AND RADAR DATA...WINDS WERE ESTIMATED TO BE AROUND 70 MPH. THE MOST CONCENTRATED AREA OF DAMAGE EXISTED ALONG A LINE FROM NEW MADISON AND ARCANUM IN DARKE COUNTY...INTO AREAS FROM PLEASANT HILL TO TROY IN MIAMI COUNTY. THIS DAMAGE LIKELY OCCURRED BETWEEN 840 PM AND 915 PM FRIDAY EVENING. $$ BINAU/MJP