What happens when you combine two jet streams together? What happens when you have two troughs phasing together? Combine that with a weak surface low and a cold front and you have the potential for severe weather possibilities across the region.
Latest guidance has CAPE across central and eastern PA in the range of 1000-2000.With that CAPE you add in some lift to the atmosphere in the range of –2 to –6. Factor in a Energy Helicity Index of 1 across South central PA and SE pa and SWEAT index of about 350 and bulks shear of 35-45 knots you then begin talking about the potential for severe weather and the possibility of a few tornados across south central PA into SE PA.
Even though the potential for tornados does exist the main threats will be for wind damage and hail.
So do not be surprised if you see some tornado warnings up across the areas highlighted above. Southerly flow will be out ahead of the cold front with temperatures in the 70s to near 80 and dewpoints in the 60s.
Stay tuned for further information on this severe weather potential!
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