Issued at 8:06 PM CDT, Tuesday, July 24th, 2012
The Storm Prediction Center has expanded the Slight Risk for severe thunderstorms for the rest of Tonight, the risk area now includes Duluth and Superior. The risk area is generally along a line from Big Falls to Hibbing to the Twin Ports, and it also includes all of Northwest Wisconsin except for Ashland and Iron counties. The main hazard for the rest of Tonight would be from large hail as elevated instability continues to increase north of the warm front in Southern Minnesota. However, damaging winds could also occur especially if we see some kind of bow echo take shape Overnight.
*8 PM Severe weather outlook from the SPC.
*Large hail potential for the rest of Tonight.
*Damaging wind potential for Tonight.
*Here’s the 22z (5 PM) HRRR model run. Heavy rain axis has shifted north compared to the 19z (2 PM) run. It still looks like the bulk of the heavier rainfall would occur late Tonight, probably from 11 PM or 12 AM and through the Overnight hours before ending from west to east Wednesday Morning.
Tim