Sunday, June 28, 2009

MESO: Mesoscale Discussion 1369

ACUS11 KWNS 282028
SWOMCD
SPC MCD 282027
COZ000-282130-

MESOSCALE DISCUSSION 1369
NWS STORM PREDICTION CENTER NORMAN OK
0327 PM CDT SUN JUN 28 2009

AREAS AFFECTED...PORTIONS OF SERN CO

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 282027Z - 282130Z

THUNDERSTORMS ARE EXPECTED OVER MAINLY THE HIGHER TERRAIN... BUT MAY
GRADUALLY MOVE/DEVELOP EWD TO THE PALMER DIVIDE/LIC SWD TO THE PUB
AREA. A WW IS NOT ANTICIPATED...UNLESS STORM COVERAGE IS GREATER
EAST OF THE FOOTHILLS THAT CURRENTLY FORECAST.

TEMPERATURES HAVE WARMED WELL INTO THE 80S AND WHEN COMBINED WITH
UPPER 40 TO LOWER 50 DEWPOINTS...MLCAPES HAVE CLIMBED TO NEAR 1500
J/KG. THE PROFILER IN NERN CO SHOWS WINDS ARE RELATIVELY WEAK IN THE
LOWER 6 KM...THOUGH WLY WINDS INCREASE TO NEAR 50 KT AT ABOUT 8 KM.
GIVEN THE SELY BOUNDARY LAYER WINDS...THIS IS RESULTING IN AROUND 30
KT OF 0-6 KM SHEAR AND AOA 40 KT IN THE 0-8 KM LAYER. EVEN THOUGH
MOST STORMS ARE EXPECTED TO REMAIN OVER THE HIGHER TERRAIN...SURFACE
OBSERVATIONS SUGGEST A PUB CYCLONE HAS DEVELOPED AND THIS MAY
ENHANCE STORM DEVELOPMENT WEST AND NORTH OF THE COS/PUB AREA.
CURRENTLY...THE STORM/SEVERE THREAT IS EXPECTED TO REMAIN ISOLATED.
HOWEVER...IF STORM COVERAGE IN THE PLAINS IS GREATER THAN
ANTICIPATED...A WW ISSUANCE IS POSSIBLE AS WELL AS AN UPDATE TO THE
OUTLOOK.

..IMY.. 06/28/2009

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

ATTN...WFO...GLD...PUB...BOU...

LAT...LON 37180527 37400540 39540566 39870454 39790317 38850314
37390478 37180527

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