Temperatures are still going to be HOT from the central US up into the Ohio region and eastwards and Northeastwards. However.. this is about to change over the next two days... However, for today in those regions mentioned above we will be in the 80s to 90s.. http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F18_TMPF_2_M_ABOVE_GROUND.png.. In addition to this the dew points will be in the 60-70 degree range making it feel much hotter.. http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F18_DPTF_2_M_ABOVE_GROUND.png ... Convective Available Potential Energy will be anywhere from 500 to about 4000 depending on where you are located.. http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F24_CAPE_SURFACE.png ..Lift index or Lift in the atmosphere will be anywhere from 0 to negative 8 depending on where you are located... http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F24_PLI_30_0_MB_ABOVE_GROUND.png ... Shear will be 30-50 knots in the lakes region and to the south but in the east it will be very weak.. http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F24_SHRM_500_MB.png ... EHI is going to be above 1 from Wisconsin into Upper western Michigan as well as south of there into Southern Iowa, Missouri , Illinois and Indiana... http://www.twisterdata.com/data/models/nam/221/maps/2012/08/04/00/NAM_221_2012080400_F18_EHI_3000_M.png ... HELICITY is greatest over southern Iowa and Illinois. With the EHI in place in the locations above we are going to be going with a 2% tornado risk... At the surface.. Across the southeast a stationary front is going to be responsible for touching off some severe potential and into Florida it will be the Tropical wave that is off the coast of Fl. Else where into the Midwest a warm front will be stretching and pushing its way thru the lakes with a cold front directly on its heels! This frontal system with the main area of low pressure moving across the southern Tier of Canada will be the focus of severe weather today day 1. This same system will be effecting the NE into the southeast on Day 2!
A Sneak Peak at Day 2 Outlook … This will be re defined later tonight with discussion and specifics..
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