Archive for October, 2007
Severe Weather Outbreak for SRN/CNTRL Plains
by John Hudson on Oct.17, 2007, under Weather & Atmosphere
The Storm Prediction Center in Norman, Oklahoma has issued a Moderate Risk (MOD) for areas of the southern and central Plains for today.
A strong upper-level trough is expected to advance over the southern and central Plains early this afternoon, ahead of a strengthening Pacific jet streak. High surface dewpoints in the warm sector ahead of the advancing cold front, coupled with strong low and mid level windfields are expected to create conditions favorable for the development of severe thunderstorms across the region beginning this morning and into tonight.
High CAPE values within the warm sector exceeding 1500j/kg, and deep layer shear values of 50 kts will be more than sufficient to produce strong supercells, with the potential for a few long-track strong tornadoes.

