Severe Storm Outlook Narrative (AC)
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376
ACUS48 KWNS 270816
SWOD48
SPC AC 270815

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0315 AM CDT WED JUL 27 2016

VALID 301200Z - 041200Z

...DISCUSSION...
...NRN PLAINS INTO THE UPPER GREAT LAKES...
CONSENSUS OF MODEL GUIDANCE SUGGESTS A DAMPENING OF A PERSISTENT
MIDLEVEL RIDGE OVER THE WRN CONUS...AS NRN STREAM BECOMES MORE
ACTIVE...FEATURING A SERIES OF SEASONABLY STRONG SHORTWAVE TROUGHS.
THE POTENTIAL FOR PERIODIC STRONG CONVECTION APPEARS TO BE
INCREASING EARLY-MID WEEK...AS SFC HIGH PRESSURE OVER THE GREAT
LAKES SHIFTS EWD AND RICH MOISTURE RETURNS NWD. HOWEVER...THE TIMING
AND PREDICTABILITY OF MESOSCALE AND SYNOPTIC-SCALE FEATURES OF
INTEREST REMAIN POOR AT THIS TIME SCALE...PRECLUDING PROBABILISTIC
DELINEATION.

..ROGERS.. 07/27/2016



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