http://forecast.weather.gov/wwamap/w...rstorm%20watch

My county is bolded:

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 679
NWS STORM PREDICTION CENTER NORMAN OK
805 PM EDT TUE SEP 21 2010

SEVERE THUNDERSTORM WATCH 679 IS IN EFFECT UNTIL 100 AM EDT
FOR THE FOLLOWING LOCATIONS

MIC001-005-011-015-017-025-037-045-049-051-057-063-065-067-069-
073-075-077-081-087-093-099-107-111-117-121-123-125-129-135-139-
145-147-151-155-157-159-161-163-220500-
/O.NEW.KWNS.SV.A.0679.100922T0005Z-100922T0500Z/

MI
. MICHIGAN COUNTIES INCLUDED ARE

ALCONA ALLEGAN ARENAC
BARRY BAY CALHOUN
CLINTON EATON GENESEE
GLADWIN GRATIOT HURON
INGHAM IONIA IOSCO
ISABELLA JACKSON KALAMAZOO
KENT LAPEER LIVINGSTON
MACOMB MECOSTA MIDLAND
MONTCALM MUSKEGON NEWAYGO
OAKLAND OGEMAW OSCODA
OTTAWA SAGINAW SANILAC
SHIAWASSEE ST. CLAIR TUSCOLA
VAN BUREN WASHTENAW WAYNE
$$
It includes every Metro Detroit county except Monroe.