Slight risk of severe weather today

9 a.m. EDT day 1 convective outlook mapAlmost all of Indiana and Ohio have a slight risk of severe weather between 9 a.m. EDT today and 8 a.m. EDT tomorrow, according to the “Day 1 Convective Outlook” that the National Weather Service (NWS) Storm Prediction Center (SPC) issued at 8:29 a.m. EDT.

The primary threats in the slight risk area are damaging straight-line winds of 58 mph or greater and/or hail of one inch or more in diameter. A small tornado risk also exists.

Any storms that form in the northern Indiana NWS county warning area, are most likely from midday to afternoon, according to the “Hazardous Weather Outlook” that the northern Indiana office issued at 6:14  a.m. EDT.  That outlook also indicates that SKYWARN storm spotter activation might be needed today.

As you can see on the map above, the slight risk area, which includes all of IMO SKYWARN quadrant two. The quadrant two counties have the following probabilities of severe weather within 25 miles of a point:

  • Tornado: 2 percent
  • Damaging straight-line thunderstorm winds of 58 mph or greater: 15 percent
  • Hail of one inch or more in diameter: 15 percent.

The next SPC outlook for today is due by 12:30 p.m. EDT.

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