SWOMCD
SPC MCD 220037
OKZ000-TXZ000-220200-
MESOSCALE DISCUSSION 2125
NWS STORM PREDICTION CENTER NORMAN OK
0737 PM CDT SUN OCT 21 2007
AREAS AFFECTED...SWRN-CNTRL-NERN OK AND NWRN TX
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 220037Z - 220200Z
HAIL MAY ACCOMPANY STRONGER TSTMS DEVELOPING ACROSS SWRN-NERN OK AND
NWRN TX THROUGH THE EVENING. A WW IS NOT EXPECTED.
RECENT TSTM DEVELOPMENT JUST NW OF THE I-44 CORRIDOR FROM SWRN OK
NEWD TO JUST NORTH OF KOKC APPEARS TIED TO STRENGTHENING H85-H7
FRONTOGENESIS. 00Z OUN SOUNDING EXHIBITED MORE BUOYANCY /ABOUT 100
J/KG/ THAN THE 18Z NAM SUGGESTED FOR A PARCEL ROOTED JUST ABOVE H85.
TSTMS SHOULD CONTINUE TO EXPAND IN COVERAGE BOTH ENEWD AND SWWD
FROM CNTRL/SWRN OK THROUGH LATE EVENING AS THE UPR LVL STORM SYSTEM
OVER THE SRN HIGH PLAINS TRANSLATES EWD. MORE VIGOROUS UPDRAFTS MAY
BRIEFLY ROTATE OWING TO 50-60 KTS OF AVAILABLE SHEAR AND MAY PRODUCE
SMALL HAIL /ISOLD SVR HAILSTONE/. BUT... WIDESPREAD SVR WEATHER IS
NOT ANTICIPATED...NOR IS A SEVERE WEATHER WATCH.
.RACY.. 10/22/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TSA...OUN...SJT...
33769979 36229761 36769653 36439583 35449679 34379780
33219921 33229975
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