MESO: Mesoscale Discussion 1037

ACUS11 KWNS 201815
SWOMCD
SPC MCD 201814
MTZ000-WYZ000-IDZ000-201945-

MESOSCALE DISCUSSION 1037
NWS STORM PREDICTION CENTER NORMAN OK
0114 PM CDT SUN JUN 20 2010

AREAS AFFECTED...NRN WY AND SRN MT

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 201814Z - 201945Z

THUNDERSTORM ACTIVITY WILL INCREASE OVER THE NEXT COUPLE OF HOURS.
SEVERE HAIL AND STRONG WINDS ARE EXPECTED WITH THESE STORMS AS THE
DEVELOP ALONG AND MOVE AWAY FROM THE HIGHER TERRAIN.

CURRENT VIS SAT INDICATED TOWERING CU AND A FEW THUNDERSTORMS
DEVELOPING ALONG HIGHER TERRAIN FROM WRN WY INTO THE BLACK HILLS OF
SD. TEMPERATURES HAD MAINLY WARMED INTO THE 60S TO LOW 70S WITH
DEWPOINTS IN THE 40S WEST TO MID 50S EAST. THIS HAS RESULTED IN
SBCAPE VALUES AROUND 1000-2000 J/KG. ALTHOUGH THERE APPEARS TO BE A
WEAK CAP IN PLACE AT THIS TIME EXPECT THAT THIS WILL ERODE RAPIDLY
AND THUNDERSTORMS SHOULD BECOME MORE WIDESPREAD IN THE NEXT HOUR OR
TWO. GIVEN THERMODYNAMIC PROFILES AND BULK SHEAR VALUES AROUND 30-40
KT /ESPECIALLY OVER WY INTO SD/ EXPECT SEVERE HAIL AND STRONG WINDS
TO ACCOMPANY STRONGEST STORMS.

..STOPPKOTTE.. 06/20/2010

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...UNR...BYZ...RIW...TFX...PIH...

LAT...LON 42690906 43140881 43480858 43770819 43950771 44120700
44050555 44430525 44980543 45390581 45640668 45560944
45491028 45421085 45171125 44621133 43671104 42951089
42561055 42690906

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