Friday, September 28, 2007

updated chances


FORECAST SOUNDINGS IN THE ZONE OF ANTICIPATED THUNDERSTORM FORMATION INDICATE STRONG DEEP LAYER SHEAR ALONG A 50-70 KT SOUTHWESTERLY MID-LEVEL JET STREAK...SUPPORTIVE OF A RISK FOR SUPERCELLS. AND...LARGE LOW-LEVEL HODOGRAPHS...PRIMARILY DUE TO INCREASING SPEEDS WITH HEIGHT...MAY PROMOTE A COUPLE OF TORNADOES...IN ADDITION TO THE RISK FOR DAMAGING WIND GUSTS/LARGE HAIL IN AN ENVIRONMENT WITH MIXED LAYER CAPE ON THE ORDER OF 1000 J/KG...PERHAPS LOCALLY AS HIGH AS 2000 J/KG.

based upon SPC

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