SWOMCD
SPC MCD 031924
NEZ000-KSZ000-032130-
MESOSCALE DISCUSSION 1989
NWS STORM PREDICTION CENTER NORMAN OK
0224 PM CDT THU SEP 03 2009
AREAS AFFECTED...CNTRL/SCNTRL NEB AND NCNTRL KS
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 031924Z - 032130Z
LOW PROBABILITIES FOR ISOLD...BRIEF AND WEAK TORNADOES WILL EXIST
ACROSS PORTIONS OF CNTRL/SCNTRL NEB AND NCNTRL KS THROUGH EARLY THIS
EVENING. A WW IS NOT ANTICIPATED.
CONVECTION IS INCREASING ACROSS THE AREA AT MID-AFTN...DOWNSTREAM
FROM A MID-LVL CYCLONIC FEATURE MOVING SWD THROUGH CNTRL NEB. MOST
OF THE REGION HAS BEEN CLOUDY...BUT BINOVC AND MODEST STEEPENING OF
THE LLVL LAPSE RATES HAVE CONTRIBUTED TO INCREASING AMOUNTS OF 0-3KM
CAPE FROM NCNTRL KS NWD INTO SCNTRL NEB. SFC ANALYSIS SUGGESTS THAT
A WEAK LLVL SHEAR ZONE HAS FORMED FROM BETWEEN KBIE-KHJH NWWD TO
NEAR KODX AND OBJECTIVE FIELDS EXHIBIT INCREASING SFC VORTICITY
BECOMING JUXTAPOSED WITH THE MAXIMUM IN 3KM CAPE. THUS...THERE WILL
BE A LOW PROBABILITY FOR A BRIEF WEAK TORNADO AS TSTMS DEVELOP INVOF
THE BOUNDARY WITHIN A LOW LCL AND VORTICITY-RICH ENVIRONMENT THROUGH
EARLY EVE. THIS THREAT MAY EVENTUALLY DEVELOP SWD INTO NCNTRL KS.
..RACY.. 09/03/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...OAX...TOP...GID...
LAT...LON 40939754 40019680 39589704 39399773 39679847 40189865
40809888 41579894 41489827 40939754
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