SWOMCD
SPC MCD 230732
MOZ000-OKZ000-KSZ000-230900-
MESOSCALE DISCUSSION 0545
NWS STORM PREDICTION CENTER NORMAN OK
0232 AM CDT THU APR 23 2009
AREAS AFFECTED...SERN KS/SWRN MO/NERN OK
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 230732Z - 230900Z
SMALL BUT WELL-ORGANIZED CLUSTER OF ELEVATED STORMS WILL CONTINUE TO
BE ACCOMPANIED BY A THREAT FOR HAIL AND/OR LOCALLY-DAMAGING GUSTS.
A CLUSTER OF STRONG/SEVERE STORMS CONTINUES MOVING ACROSS
LYON/GREENWOOD COUNTIES IN SERN KS...AIDED BY AN INTENSIFYING SSWLY
LOW-LEVEL JET /NOW INTO THE 70 KT RANGE AT 1 KM PER CENTRAL OK
VWP/PROFILERS/. EVENING RAOBS REVEALED A DEEP/DRY BOUNDARY
LAYER...THOUGH SOME ADVECTION OF MODEST MOISTURE ALOFT HAS
APPARENTLY YIELDED A SATURATED LAYER -- SOMEWHERE BETWEEN 800 AND
600 MB -- SUPPORTING THE OBSERVED CONVECTIVE DEVELOPMENT.
CONTINUED THETA-E ADVECTION/ASCENT SUPPLIED BY THE STRONG LOW-LEVEL
JET SHOULD CONTINUE TO SUPPORT THUNDERSTORMS...WHICH SHOULD MOVE EWD
-- AND THEN EVENTUALLY ESEWD -- ACROSS SERN KS. HAIL -- AND PERHAPS
A DAMAGING GUST RESULTING FROM A STRONG EVAPORATIVELY-COOLED
DOWNDRAFT REACHING THE GROUND DESPITE THE STABLE NEAR-SURFACE LAYER
-- WILL REMAIN POSSIBLE. HOWEVER...WITH THE THREAT LIKELY TO REMAIN
LIMITED...WW IS NOT ANTICIPATED ATTM.
..GOSS.. 04/23/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...SGF...EAX...TSA...TOP...ICT...
LAT...LON 37349705 38099751 38299671 38339509 37999418 37009376
36619424 36739559 37349705
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