MESOSCALE DISCUSSION 1843
NWS STORM PREDICTION CENTER NORMAN OK
0555 PM CDT MON JUL 14 2003
AREAS AFFECTED...NRN MN
CONCERNING...SEVERE THUNDERSTORM WATCH 744...747...
VALID 142255Z - 150100Z
CONTINUE WWS.
PRE-FRONTAL SURFACE TROUGH IS NOW PROGRESSING EAST OF THE
INTERNATIONAL FALLS/BEMIDJI/FERGUS FALLS AREAS...WITH STRONGER
MID/UPPER FORCING FOR UPWARD VERTICAL MOTION IN EXIT REGION OF
CYCLONIC NORTHERN PLAINS JET STREAK SPREADING INTO/ACROSS WESTERN
ONTARIO AND THE MINNESOTA ARROWHEAD. ENVIRONMENT ACROSS NORTHEAST
MINNESOTA HAS BECOME MODERATELY UNSTABLE WITH MEAN MIXED LAYER CAPE
AROUND 2000 J/KG. WHILE MORE SIGNIFICANT CONVECTIVE CLUSTER MAY
REMAIN ALONG/NORTH OF THE U.S. BORDER... SUPERCELLS NOW DEVELOPING
NORTH OF BRAINERD INTO AREAS EAST OF INTERNATIONAL FALLS WILL POSE
THREAT FOR LARGE HAIL/DAMAGING WIND GUSTS AND ISOLATED TORNADOES
ACROSS HIBBING AND AREAS NORTH/EAST BY 01Z.
..KERR.. 07/14/2003
ATTN...WFO...DLH...
46689230 46789328 47079403 47659437 48209358 48539307
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