Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 280101
SWODY1
SPC AC 280100

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0800 PM CDT WED MAY 27 2015

VALID 280100Z - 281200Z

...THERE IS A SLGT RISK OF SVR TSTMS FROM WRN AND NWRN TX THROUGH
WRN OK AND WRN KS...

...THERE IS A MRGL RISK OF SVR TSTMS FROM WRN THROUGH NRN TX...WRN
AND CNTRL OK AND WRN KS...

...SUMMARY...
ISOLATED TO WIDELY SCATTERED STRONG TO SEVERE STORMS WILL PERSIST
THIS EVENING FROM PARTS OF WESTERN AND NORTHWESTERN TEXAS THROUGH
WESTERN KANSAS AND WESTERN OKLAHOMA. DAMAGING WIND AND LARGE HAIL
ARE THE MAIN THREATS.

...WEST AND NORTHWEST TEXAS THROUGH WESTERN OKLAHOMA AND WESTERN
KANSAS...

ISOLATED TO WIDELY SCATTERED STORMS PERSIST FROM WRN AND NWRN TX
THROUGH WRN KS AND WRN OK. THE MOST FAVORABLE ENVIRONMENT FOR
SUPERCELLS EXISTS FROM THE TX AND OK PANHANDLES THROUGH SWRN KS
WHERE 00Z RAOB FROM DODGE CITY INDICATES 2000 J/KG MLCAPE...60 KT
0-6 KM SHEAR AND STRONGLY VEERING 0-2 KM WINDS SUPPORTING 250-300
M2/S2 STORM RELATIVE HELICITY. SOME SUPERCELL STRUCTURES CONTINUE TO
BE OBSERVED...AND A TORNADO OR TWO REMAIN POSSIBLE BEFORE THE
BOUNDARY LAYER STABILIZES. TRENDS SHOULD FAVOR STORMS GRADUALLY
EVOLVING INTO CLUSTERS SUPPORTED BY NUMEROUS STORM MERGERS FROM THE
TX PANHANDLE THROUGH WRN OK AND KS. THE STRENGTHENING SLY LLJ WILL
SUPPORT SEWD PROPAGATION AS STORMS GROW UPSCALE...AND THIS ACTIVITY
WILL CONTINUE TO POSE A THREAT FOR DAMAGING WIND AND LARGE HAIL
THROUGH AT LEAST MID EVENING.

OTHERWISE...ISOLATED STORMS DEVELOPING FROM SWRN TX INTO SERN NM AND
NCNTRL THROUGH NWRN TX WILL REMAIN CAPABLE OF PRODUCING LARGE HAIL
AND DAMAGING WING GUSTS BEFORE GRADUALLY DIMINISHING AFTER 03Z DUE
TO A STABILIZING BOUNDARY LAYER.

..DIAL.. 05/28/2015



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