SWOMCD
SPC MCD 160237
NDZ000-SDZ000-MTZ000-WYZ000-160400-
MESOSCALE DISCUSSION 1988
NWS STORM PREDICTION CENTER NORMAN OK
0937 PM CDT MON AUG 15 2011
AREAS AFFECTED...ERN MT...SERN AND S-CNTRL ND...FAR NWRN SD
CONCERNING...SEVERE THUNDERSTORM WATCH 782...
VALID 160237Z - 160400Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 782
CONTINUES.
SEVERE STORMS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS
WILL CONTINUE ACROSS WW 782 THE NEXT FEW HOURS. A BOWING SEGMENT
EAST OF BIS APPEARED TO BE ANCHORED ALONG AN OLD OUTFLOW BOUNDARY
AND IS EXPECTED TO CONTINUE TRACKING EWD IN THE VICINITY OF THIS
BOUNDARY TOWARD JMS.
FURTHER TO THE W...MORE WIDESPREAD CONVECTION WAS DEVELOPING FROM
FAR SERN MT INTO SWRN SD. THIS WAS LIKELY IN RESPONSE TO DEEP LAYER
FORCING FOR ASCENT CAUSED BY EJECTING VORT MAX ACROSS S-CNTRL MT PER
LATEST WATER VAPOR IMAGERY. GIVEN STEEP LAPSE RATES /PER GGW AND BIS
00Z RAOBS/ AND STRONG DEEP LAYER SHEAR...SUPERCELL STRUCTURES WILL
BE POSSIBLE AND LARGE HAIL AND STRONG WINDS WILL CONTINUE TO BE A
THREAT OVER THE NEXT FEW HOURS AS THESE STORMS TRACK EWD INTO THE
WRN DAKOTAS.
..LEITMAN.. 08/16/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FGF...ABR...BIS...UNR...BYZ...GGW...
LAT...LON 44990432 45000625 47750627 48090532 48530218 48590035
48349986 47769925 46759916 45979919 45510066 45200315
44990432
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