Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 310100
SWODY1
SPC AC 310058

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT SUN AUG 30 2015

VALID 310100Z - 311200Z

...THERE IS A MRGL RISK OF SVR TSTMS PARTS OF ERN MT...

...SUMMARY...
LOCALLY STRONG TO MARGINALLY SEVERE WIND GUSTS AND HAIL MAY PERSIST
THROUGH ABOUT 10 PM MDT.

...ERN MT...
SCATTERED TSTM ACTIVITY ALONG THE MISSOURI RIVER FROM NEAR KGGW TO
KLWT HAS STRUGGLED TO INTENSIFY TO SEVERE LEVELS GIVEN DEARTH OF
BUOYANCY SAMPLED IN 00Z KGGW RAOB. BUT WITH ELONGATED/NEARLY
STRAIGHT-LINE HODOGRAPHS SAMPLED IN KGGW/KTFX RAOBS...DEEP SHEAR
REMAINS SUFFICIENT FOR HIGH-BASED SUPERCELL STRUCTURES AND
SHORT-LINE SEGMENTS...AS MID-LEVEL DCVA IS ROBUST DOWNSTREAM OF THE
SHORTWAVE TROUGH NEAR THE MT/ID BORDER. BUT AS SURFACE TEMPERATURES
RAPIDLY COOL AND MLCIN INCREASES...CONVECTIVE INTENSITY SHOULD WANE
IN THE LATE EVENING.

..GRAMS.. 08/31/2015




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