Tuesday, June 22, 2010

6/22/10: SEVERE POTENTIAL

Issued at 12:19 PM CDT, Tuesday, June 22nd, 2010

...SCATTERED SEVERE THUNDERSTORMS POSSIBLE LATE THIS AFTERNOON AND THIS EVENING...

Timing:
*4:00 PM until 11:00 PM CDT.

Main hazards:
*Damaging winds an excess of 60 mph
*Large hail at or greater than 1.00" in diameter
*Locally heavy rain and dangerous lightning

Discussion:

A cold front will settle south/east out of Northwest Minnesota This Afternoon and Tonight. A warm, moist, and unstable airmass was in place out ahead of this front and this should lead to the development of scattered showers and thunderstorms This Afternoon and Tonight across our area... A few of these storms could turn severe especially late This Afternoon and Evening thanks to strong winds in the mid and upper levels of the atmosphere along with some decent wind shear.

Although the majority of our area is under a Slight Risk for Severe Thunderstorms This Afternoon and Evening, it appears that the best chance for possible severe weather would be along and west of a line from International Falls and Hibbing through Duluth/Superior down through Cable, and Phillips in Northwest Wisconsin. Other Cities that could be impacted are: Northome MN...Bigfork MN...Grand Rapids MN...Walker MN...Cass Lake MN...Backus MN...Brainerd MN...Hill City MN...Aitkin MN...McGrath MN...Pine City MN...Hinckley MN...Moose Lake MN...Cromwell MN...Cloquet MN...Grantsburg WI...Siren WI...Port Wing WI...Minong WI...Spooner WI...And Hayward.

Make sure to keep up to date with the latest weather information throughout the day...Listen for possible watches or warnings that may be issued by the National Weather Service.

Tim