Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 230048
SWODY1
SPC AC 230047

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0747 PM CDT FRI AUG 22 2014

VALID 230100Z - 231200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE CENTRAL PLAINS...

...SUMMARY...
SCATTERED SEVERE THUNDERSTORMS WILL SPREAD ACROSS THE CENTRAL PLAINS
TONIGHT.  THE PRIMARY THREATS ARE LARGE HAIL AND DAMAGING WINDS.
ISOLATED TORNADOES ARE ALSO POSSIBLE.

...CENTRAL PLAINS...

WELL DEFINED UPPER VORT IS LIFTING NEWD ACROSS THE 4-CORNERS INTO
SWRN CO.  CORRIDOR OF STRONGER FLOW ALOFT IS NOW SPREADING ACROSS
THE HIGH PLAINS AND APPEARS TO BE AIDING ORGANIZATION OF CONVECTION
OVER ERN CO/WRN KS.  SEVERAL THUNDERSTORM CLUSTERS ARE EVOLVING
ACROSS THIS REGION WITH ONE MATURING COMPLEX OVER ERN CO AND A
NOTABLE MCV OVER LINCOLN COUNTY.  ANOTHER POSSIBLE MCV IS FORMING
ALONG THE WRN END OF A COMPLEX OVER SRN DECATUR COUNTY KS.  BOTH OF
THESE COMPLEXES ARE LIFTING NNEWD AT ROUGHLY 35KT AND WILL SOON
SPREAD INTO SRN NEB.  LONE SUPERCELL HAS ALSO DEVELOPED ALONG THE
KS/NEB BORDER WITHIN FAVORABLY MOIST/SHEARED LOW LEVEL AIRMASS.
ISOLATED TORNADOES REMAIN POSSIBLE WITH SUPERCELL
STRUCTURES...ESPECIALLY NORTH OF THE BOUNDARY FOR THE NEXT FEW
HOURS...AS DEEP LAYER SHEAR BEGINS TO INCREASE.  LATER TONIGHT LLJ
WILL INCREASE ACROSS KS/NEB AND WARM ADVECTION SHOULD DRIVE MULTIPLE
THUNDERSTORM CLUSTERS ACROSS NEB INTO SD.  LARGE HAIL/DAMAGING
REMAIN THE PRIMARY THREATS.

...ELSEWHERE...

ISOLATED STRONG STORMS MAY LINGER ACROSS ERN ID FOR THE NEXT FEW
HOURS...AIDED IN LARGE PART BY STRONG UPPER TROUGH AND LINGERING
INSTABILITY.  OTHER ISOLATED STORMS ARE POSSIBLE ACROSS A BROAD
SWATH OF THE MID MS VALLEY/OH VALLEY WITHIN WEAK WARM ADVECTION
REGIME.  LARGE SCALE FORCING WILL REMAIN NEGLIGIBLE ACROSS THE MID
MS/OH VALLEY REGION AND DO NOT ANTICIPATE SUFFICIENT
COVERAGE/INTENSITY TO WARRANT MORE THAN 5 PERCENT SEVERE PROBS.

..DARROW.. 08/23/2014




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