SWOMCD
SPC MCD 090147
VAZ000-MDZ000-DCZ000-NCZ000-090245-
MESOSCALE DISCUSSION 0831
NWS STORM PREDICTION CENTER NORMAN OK
0847 PM CDT THU MAY 08 2008
AREAS AFFECTED...CNTRL/ERN VA...CNTRL NC...FAR SRN MD
CONCERNING...TORNADO WATCH 280...282...283...
VALID 090147Z - 090245Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH
280...282...283...CONTINUES.
RECENT RADAR IMAGERY DEPICTS SEVERAL DISCRETE SUPERCELLS FROM NEAR
CHO TO GSO...WITH DEVELOPING QLCS AND EMBEDDED SUPERCELLS FROM NEAR
HKY TO LYH. THERMODYNAMIC AND KINEMATIC ENVIRONMENT REMAINS
FAVORABLE FOR ROTATING STORMS...AS SAMPLED BY 00Z GSO RAOB WITH
MLCAPE AROUND 1400 J/KG AND EFFECTIVE SRH AROUND 200 M2/S2. ALTHOUGH
SLOW NOCTURNAL COOLING HAS COMMENCED...SURFACE TEMPERATURES IN THE
UPPER 60S TO LOWER 70S AND DEW POINTS IN THE LOWER TO MIDDLE 60S
FROM CNTRL NC TO THE LOWER POTOMAC RIVER WILL MAINTAIN NEAR
SURFACE-BASED EFFECTIVE PARCELS. AS THE LLJ CONTINUES TO STRENGTHEN
PER LATEST 00Z RUC GUIDANCE AND REGIONAL VAD PROFILERS...LARGE HAIL
AND DAMAGING WINDS WILL REMAIN PRIMARY THREATS WITH POTENTIAL FOR
ISOLATED TORNADOES DURING THE NEXT SEVERAL HOURS.
..GRAMS.. 05/09/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...AKQ...LWX...RAH...RNK...GSP...
38117634 37047707 35917806 35137931 35048029 35438103
35998113 37007990 38027899 38727815 38927735 38887669
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