Severe Weather Outbreak Expected Today!!

Severe Weather Outbreak Expected Across The Region Today

The Storm Prediction Center has placed much of eastern Illinois into Indiana under a HIGH risk for severe thunderstorms today. 

 

 

An increasing southerly flow will usher in warmer and more humid air this morning. Isolatevere storms will be possible tonight across the area associated with the warm front. One or more rounds of severe storms are expected in this warm/moist airmass today.

 

Threats/Timing

The main focus for the high risk will be for an increased tornado threat, starting by late this morning and continuing into early afternoon. The potetntial exists for a few strong, long-lived tornadoes, along with damaging winds and possibly some large hail. There will be a high threat for damaging winds across the area with any thunderstorms, especially this afternoon when wind gusts in excess of 70 mph will be possible. 

 

 

Storm Mode

  • Initial thunderstorms will develop well ahead of the cold front. Given the extreme shear in the lower levels, these storms will likely evolve rapidly into low topped supercells, with the threat for tornadoes and damaging winds increasing. It will be at this time that the greatest threat for strong tornadoes will exist.
  • These storms may congeal into a broken line of storms and continue to race east, with a transition to significant damaging winds and isolated tornadic circulations.
  • Some scenerios indicate that a second line of thunderstorms could develop along the cold front and quickly catch up with the initial storms. 

 Expected Impacts

  • Power outages will become an increased threat through the day from a combination of any thunderstorm/tornado damage as well as strong winds outside any convection.
  • Structural damage is possible, especially in swaths of damaging winds or tornadic circulations.
  • If a warning is issued for your area, seek shelter IMMEDIATELY. Do not wait until you see the storm. The rapid speed of the convection today will only allow a short period of time to take shelter.

Forecast details will be updated this morning as additional data arrives and the event begins to unfold. For our latest thoughts and forecast information, visit our Facebook page at https://www.facebook.com/US.NationalWeatherService.NorthernIN.gov and our Twitter account @NWSIWX at https://twitter.com/NWSIWX

 

Last Updated November 17, 2013 at 435 am EST

Bentley/Fisher/NG

 



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