Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS02 KWNS 281703
SWODY2
SPC AC 281702

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1202 PM CDT SUN AUG 28 2016

VALID 291200Z - 301200Z

...THERE IS A MRGL RISK OF SVR TSTMS FOR PORTIONS OF THE UPPER
MIDWEST...

...SUMMARY...
A MARGINAL SEVERE THREAT WITH STRONG WIND GUSTS AND HAIL WILL BE
POSSIBLE MONDAY ACROSS PARTS OF MINNESOTA...NORTHWEST WISCONSIN AND
WESTERN PART OF THE UPPER PENINSULA OF MICHIGAN.

...UPPER MIDWEST...
ISOLATED THUNDERSTORMS MAY BE ONGOING MONDAY MORNING WITHIN MODEST
LOW-LEVEL WAA REGIME.  IT IS POSSIBLE A STRONGER STORM OR TWO MAY BE
CAPABLE OF AN MARGINALLY SEVERE-HAIL THREAT BUT THIS ACTIVITY IS
FORECAST TO WEAKEN AND DISSIPATE TOWARDS THE MIDDAY.  STORM
DEVELOPMENT WILL THEN SHIFT WESTWARD ALONG A COLD FRONT FORECAST TO
MOVE INTO NWRN MN BY MID AFTERNOON.  STRONG HEATING IN WAKE OF
POSSIBLE EARLY-DAY CLOUD DEBRIS AND 65-70 DEG F DEWPOINTS WILL
CONTRIBUTE TO STRONG DESTABILIZATION AHEAD OF THE COLD FRONT.
ALTHOUGH A MID-LEVEL LOW WILL REMAIN DISPLACED WELL TO THE NORTH
NEAR THE MANITOBA COAST...A BELT OF 30-40 KT H5 FLOW MAY OVERSPREAD
NRN MN BUT THE STRENGTH OF FLOW WILL WEAKEN SUBSTANTIALLY WITH
SOUTHWARD EXTENT INTO CNTRL/SRN MN.  SCATTERED STORMS WILL PROBABLY
DEVELOP DURING THE LATE AFTERNOON AND THE MORE INTENSE STORMS
CAPABLE OF AN ISOLATED LARGE-HAIL/SEVERE-GUST THREAT.  STORMS WILL
LIKELY WEAKEN DURING THE EARLY EVENING OWING TO THE LOSS OF
BOUNDARY-LAYER INSTABILITY.

..SMITH.. 08/28/2016

$$


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