SOWEGA Weather

"SOWEGA" <---- where's that? SOWEGA refers to the southwestern portion of Georgia, epecially the Albany area. Many local businesses have adopted the SOWEGA (pronounced So-We-GAh) name. It's like the "Big Apple" for us southerners. SOWEGA Weather is a compliment to the local SKYWARN network of spotters, chasers, and local meteorologists (amateur and professional). It's not in competition with, but supplements, the activities of local weather nuts (like RL and JB).

Tuesday, February 20, 2007

Tonight's SWODY1 discussion


From http://spc.noaa.gov:

SBCAPES OF 600-700 J/KG AND VERY LITTLE CONVECTIVE INHIBITION
SBCAPE = Surface-based Convective Available Potential Energy; typically, the larger the number, the larger the risk of severe weather; however, CAPE > 400 can be significant in the right shearing environment. Assessed from a sounding, usually the positive area. Convective Inhibition (CIN) = negative area within a sounding; must be overcome ("the cap"); the smaller the amount, the better chance of convection (but, small amounts can allow parcels to explode through the positive area without inducing t'storms); usually, look for possible convection

UNDIRECTIONAL WIND FIELDS WITH 60-65 KTS OF 0-6 KM BULK SHEAR
0-6KM Bulk Shear = magnitude of shear between the two layers (surface and 6 km); >20 knots is significant and higher (>35) can indicate severity of the storm; however, no level of shear can accurately predict whether a supercell will be tornadic.

WITH 300-350 M2/S2 0-1 KM SRH
SRH = storm-relative helicity; vorticity, velocity, and relative storm-motion are calculated; >100 indicates supercell initiation, with higher levels (>200) may hint at possible tornado intensity.

1 Comments:

Blogger Dewdrop said...

Great explanation of the various measures.

~Dew

11:00 AM  

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