SWOMCD
SPC MCD 272346
OHZ000-KYZ000-INZ000-280115-
MESOSCALE DISCUSSION 1599
NWS STORM PREDICTION CENTER NORMAN OK
0646 PM CDT FRI JUN 27 2008
AREAS AFFECTED...ERN/SRN IL...INDIANA...ERN/SRN MO...WRN /CNTRL
KY...WRN OH
CONCERNING...SEVERE THUNDERSTORM WATCH 619...620...621...623...
VALID 272346Z - 280115Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
619...620...621...623...CONTINUES.
A NEW WATCH WILL BE NEED EAST OF WW/S 621 AND 623 BY AROUND 00Z.
A SQUALL LINE CONTAINING SEVERAL EMBEDDED BOW ECHO STRUCTURES IS
MOVING EWD ACROSS WEST CENTRAL INDIANA...SRN IL AND EXTREME SWRN MO.
THE LINE HAS MOVED EAST OF WW 619 INTO PARTS OF WW/S 621 AND 623.
BOWING SEGMENTS ARE MOVING ENEWD NEAR 40 KT ARE CAPABLE OF PRODUCING
SWATHS OF WIND DAMAGE...IN ADDITION TO OCCASIONAL LARGE HAIL. THESE
STORMS ARE ASSOCIATED WITH AN MCV/SHORT WAVE TROUGH MOVING EWD
ACROSS THE MIDDLE MS VALLEY...AND SUFFICIENT MOISTURE/INSTABILITY
AHEAD OF THE LINE COUPLED WITH STRENGTHENING WINDS ALOFT AND
INCREASING VERTICAL SHEAR SHOULD SUPPORT CONTINUED FORWARD
PROPAGATION OF THE LINE. A NEW WATCH EAST OF WW/S 621 AND 623 WILL
BE NEEDED AROUND 00Z AS ACTIVITY MOVING ACROSS INDIANA WILL APPROACH
THE ERN EDGE OF WW 621 BY 01Z.
..WEISS.. 06/27/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CLE...ILN...LMK...IWX...IND...
41708428 41578365 40678360 39048428 37798492 37158586
37178673 38568636 40558519 41668476
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