The above outlook is based on the latest NAM/SREF . Lets take a look at the latest severe weather parameters across the outlook zone.
CAPE is 500-5000 depending on where you live
Lift Index is 0 to about – 8 depending on where you live..
SWEAT index is 400-500 from Western Illinois into all of IOWA into Central and Eastern Nebraska to 550 in NW missouri ..to 400 in NW Ark and stretching southwards all the way into Tx .
There is also an area from Central KY to Eastern TN stretching Southeast from there into Central and Eastern GA.
Energy Helicity Index is highest above 1 essentially covering the same areas as above but you can also include the central parts of Illinois and subtract GA out from the EHI.
Satellite image above shows a strong low pressure moving thru the Rockies area. This low will move NE across the central Plains on Monday!
The focal point of the action is going to be a low pressure located over eastern CO with a stationary front extending west to east to a low pressure off the east coast. This low will be over E Nebraska by 00z or 8 PM monday evening causing the warm front to lift towards the NE serving as the focal point for development of storms.
This is an usually strong trough and system for this time of the year and its going to be taking on a negative tilt..So this is something that we are going to have to watch carefully as there could be the potential needed for a high risk across parts of the outlook zone tomorrow concentrated around the Iowa region, but not limited to exclusively Iowa.
Stay tuned for more information
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