157
ACUS3 KMKC 012142
SWOMCD
MKC MCD 012142
VAZ000-MDZ000-NCZ000-020030-

SPC MESOSCALE DISCUSSION #0304 FOR CENTRAL/ERN VA...SRN MD...NRN NC
CONCERNING...SEVERE THUNDERSTORM POTENTIAL...

AIRMASS HAS DESTABILIZED SIGNIFICANTLY /SURFACE-BASED CAPE IN 1500-
2000 J/KG RANGE/ BEHIND INITIAL CONVECTION FROM NRN NC...NEWD INTO
SRN MD. ALTHOUGH LOW LEVEL FLOW HAS VEERED...IT APPEARS
CONVERGENCE ALONG FRONT IS AIDING STORM DEVELOPMENT OVER CENTRAL
PORTIONS OF VA. IN ADDITION...SIGNIFICANT MID LEVEL DRYING MAY
ENHANCE UPDRAFT POTENTIAL AND DAMAGING WIND THREAT. THERMODYNAMIC
PROFILES ALSO FAVOR LARGE HAIL.

IF ACTIVITY CONTINUES TO INCREASE...SEVERE THUNDERSTORM WATCH MAY
BE REQUIRED FOR THIS REGION.

..DARROW.. 04/01/98

...PLEASE SEE WWW.NSSL.NOAA.GOV/~SPC FOR GRAPHIC PRODUCT...