Monday, May 20, 2013

The Outbreak Continues with Day 3 Monday

The outbreak of severe weather will continue today with Day 3 as the cold front and the trough continues to make its way slowly to the east.
This will be at 12 Z this morning and you can see where the cold front will be located with an area of low pressure over TX and this front turns to the north to a low pressure up near the Dakotas borderline. Essentially the scenario we are going to be looking at today will be the same as the last two days.. All modes of severe weather are anticipated from Large Hail to Damaging Winds and Tornado's. 
Once again we will be dealing with warm to hot air out ahead of the system with temperatures in the 80s.
Dew points will once again be in the 60s and 70s 
Convective Available Potential Energy is also once again fairly high with the range of 3000-4000.
Once again there is plenty of Lift in the atmosphere with values as low as -10-11 ..
Once again our main concern is the EHI or the Energy Helicity Index that shows up across parts of the region. Whenever you have EHI at or above 1 you run the risk of Tornadic Activity ..
So it looks like Eastern OK once again could be up for some tornados along with NW ARK and into Missouri and possibly Illinois and Indiana. 
Shear is also once again sufficient with 40 knots or greater across the region.. So with all the above ingredients in place we have again a third day with this outbreak and this is the region we have highlighted on the map below with mention of where the Tornado's could occur up above..
Each day this will slowly make its way towards the East but it should weaken as compared to what the Midwest has been going thru but we are still anticipating widespread severe with it as it makes its way east southeast .
When it comes to TX we have included them but for the most part we think that the action should continue to stay to the North of TX..One exception could be around the Falls area.

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