Severe Storm Outlook Narrative (AC)
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000
ACUS48 KWNS 280839
SWOD48
SPC AC 280837

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0337 AM CDT TUE JUL 28 2015

VALID 311200Z - 051200Z

...DISCUSSION...
AN AMPLIFIED LARGE-SCALE PATTERN WILL EXIST OVER THE CONUS THROUGH
EARLY NEXT WEEK...ALTHOUGH GUIDANCE VARIABILITY EXISTS REGARDING THE
EXACT DEGREE OF TROUGH AMPLIFICATION OVER NORTHERN ONTARIO/GREAT
LAKES LATE THIS WEEKEND/EARLY NEXT WEEK. REGARDLESS OF THIS
VARIABILITY...INCREASING LOW-LEVEL MOISTURE AND A SEMI-PERSISTENT
BELT OF MODERATELY STRONG WEST/NORTHWESTERLY UPPER-LEVEL WINDS OVER
THE UPPER MIDWEST/GREAT LAKES WILL LEAD TO DAILY STRONG/SEVERE
THUNDERSTORM RISKS. WHILE CONFIDENCE IS NOT HIGH IN DAILY
DETAILS...SEVERE THUNDERSTORMS MAY BE POSSIBLE ACROSS PARTS OF THE
UPPER MS RIVER VALLEY ON SATURDAY/DAY 5...AND ACROSS A BROADER PART
OF THE UPPER MS VALLEY/MIDDLE MO VALLEY TO MIDWEST/GREAT LAKES FOR
SUNDAY/MONDAY DAYS 6-7.

..GUYER.. 07/28/2015


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