DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OKAny source
1259 AM CDT FRI JUL 26 2013
VALID 261200Z - 271200Z
...THERE IS A SLGT RISK OF SVR TSTMS FROM NRN TX INTO A PORTION OF
THE LOWER MS VALLEY...
...THERE IS A SLGT RISK OF SVR TSTMS OVER A PORTION OF WI...
...SYNOPSIS...
UPPER TROUGH IS EXPECTED TO UNDERGO SIGNIFICANT AMPLIFICATION OVER
THE UPPER MS VALLEY AND GREAT LAKES REGION. SEVERAL VORTICITY MAXIMA
WILL MOVE SEWD THROUGH BASE OF THE AMPLIFYING UPPER TROUGH. A COUPLE
OF SUCH FEATURES ARE NOW DROPPING SWD INTO NRN MN AND NRN ND...AND
WILL REACH THE WRN GREAT LAKES REGION EARLY IN THE PERIOD. A WEAK
SFC LOW WILL DEVELOP NWD THROUGH THE GREAT LAKES...EVENTUALLY
OCCLUDING OVER SRN ONTARIO. AS UPPER TROUGH AMPLIFIES...COLD FRONT
WILL SHIFT SWD THROUGH THE WRN GREAT LAKES...MID MS VALLEY AND SRN
PLAINS REGION.
ELSEWHERE...A SIGNIFICANT SHORTWAVE TROUGH CURRENTLY OVER KS WILL
CONTINUE SEWD INTO THE LOWER MS VALLEY. A WEAK QUASI-STATIONARY
FRONT WILL LIKELY PERSIST FROM THE GULF COAST STATES WNWWD INTO NERN
TX DURING THE DAY.
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