"A cluster of severe thunderstorms is currently tracking through eastern South Dakota and vectoring east-southeast. The Storm Prediction Center has issued a “Moderate Risk” (Level 4 out of 5) within the existing “Enhanced Risk” (Level 3 out of 5) from earlier this morning for northwest Iowa. The line has the potential to be classified as a derecho, so the primary threat is severe straight-line winds in excess of 80 mph. Here is the Day 1 Outlook from the SPC highlighting the highest severe wind potential.
Current modeling has the line entering northwest Iowa later this afternoon and evening and propagating along a warm front draped across northern Iowa. Modeling also shows the complex losing some energy as it reaches north-central Iowa, but this will depend on the stability of the squall line. Please stay updated via local/social media and the NWS. Attached is a Situation Report that highlights severe potential and dangerous heat."
Current modeling has the line entering northwest Iowa later this afternoon and evening and propagating along a warm front draped across northern Iowa. Modeling also shows the complex losing some energy as it reaches north-central Iowa, but this will depend on the stability of the squall line. Please stay updated via local/social media and the NWS. Attached is a Situation Report that highlights severe potential and dangerous heat."
SPC Day 1 Outlook
Severe weather, tornado, thunderstorm, fire weather, storm report, tornado watch, severe thunderstorm watch, mesoscale discussion, convective outlook products from the Storm Prediction Center.
www.spc.noaa.gov
