A line of developing thunderstorms stretching from Flint south to Saline is moving northeast at 45 mph. One of the stronger cells is expected to arrive in Ann Arbor within 10 minutes. Expect 30+mph wind gusts, 5 minutes of moderate downpour (light rain for much longer), and infrequent lightning.
These storms are not severe right now but will continue strengthening due to the warm moist air throughout the area. They do not represent a severe threat for the city.
Special weather statement issued 12:23pm from NWS Detroit:
WWUS83 KDTX 311623 SPSDTX SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1223 PM EDT FRI MAY 31 2013 MIZ054-055-061-062-068>070-075-076-083-311730- GENESEE-LAPEER-LIVINGSTON-MACOMB-MONROE-OAKLAND-SANILAC-TUSCOLA- WASHTENAW-WAYNE- 1223 PM EDT FRI MAY 31 2013 ...SPECIAL WEATHER STATEMENT... AT 1222 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF DEVELOPING THUNDERSTORMS ALONG A LINE EXTENDING FROM FLINT TO HOWELL TO SALINE...MOVING NORTHEAST AT 45 MPH. WINDS GREATER THAN 30 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING... BRIEF MODERATE DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... WILLIS AND HAMBURG BY 1230 PM EDT... FLAT ROCK AND BELLEVILLE BY 1235 PM EDT... TRENTON AND ROMULUS BY 1240 PM EDT... MILLINGTON AND TAYLOR BY 1245 PM EDT... WYANDOTTE AND SALEM BY 1250 PM EDT... LIVONIA AND DEARBORN BY 1255 PM EDT... DETROIT AND GRAND BLANC BY 100 PM EDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. $$ MANN