Dr. Greg Forbes Tue Night June 11-12 Evening thunderstorms will likely merge into a thunderstorm complex (Mesoscale Convective System - MCS) and move from south-central and southeast MT and north and east-central WY across central and south SD and north NE, possibly as a derecho (bow echo with widespread damaging winds). Additional clusters of severe thunderstorms may form along the warm/stationary front in south MN, north IA, south WI, north IL. TORCON - 2 to 3 these areas. 4 minutes ago
Posted on: Tue, 11 Jun 2013 16:41:44 +0000