The NWS Detroit has issued a severe thunderstorm warning for the southern half of Washtenaw County until 2:15pm. This storm brings 1.25-inch (large!) hail and 60mph wind gusts and heavy rain. The worst of this storm will pass just south of Ann Arbor, around and south of Saline.
Full warning text follows
999 WUUS53 KDTX 101714 SVRDTX MIC161-101815- /O.NEW.KDTX.SV.W.0060.130710T1714Z-130710T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 114 PM EDT WED JUL 10 2013 THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN WASHTENAW COUNTY IN SOUTHEAST MICHIGAN... * UNTIL 215 PM EDT * AT 109 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MANCHESTER...AND MOVING EAST AT 20 MPH. HAZARD...HALF DOLLAR SIZE HAIL AND 60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO ROOFS...SIDING AND TREES. * THE SEVERE THUNDERSTORM WILL BE NEAR... BRIDGEWATER AROUND 125 PM EDT. SALINE AROUND 145 PM EDT. PITTSFIELD TOWNSHIP AROUND 155 PM EDT. MILAN AROUND 200 PM EDT. WHITTAKER AND WILLIS AROUND 215 PM EDT. THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS... WILLIS... YPSILANTI... SALINE... MILAN... MANCHESTER... PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4221 8413 4228 8354 4209 8355 4209 8371 4208 8372 4208 8376 4208 8397 4207 8414 TIME...MOT...LOC 1714Z 274DEG 17KT 4212 8397 HAIL...1.25IN WIND...60MPH $$