Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS03 KWNS 220727
SWODY3
SPC AC 220726

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0226 AM CDT MON SEP 22 2014

VALID 241200Z - 251200Z

...NO SVR TSTM AREAS FORECAST...

...SUMMARY...
THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY ACROSS PORTIONS OF THE
CENTRAL PLAINS AS WELL AS THE SOUTHERN ROCKIES AND SOUTHERN HIGH
PLAINS.

...SYNOPSIS...
AN AMPLIFIED SYNOPTIC-SCALE REGIME WILL EXIST OVER THE CONUS ON
WEDNESDAY...WITH STRONGER WESTERLIES RELEGATED TO THE CONUS WEST
COAST AND CANADA. MULTIPLE RELATIVELY WEAK...GENERALLY
DECAYING...MID/UPPER-LEVEL LOWS WILL MOVE SLOWLY OVER AREAS SUCH AS
THE UPPER MIDWEST...SOUTHERN HIGH PLAINS...AND SOUTHEAST STATES.
MEANWHILE...A SUBSTANTIAL UPPER TROUGH/POLAR JET WILL BEGIN TO
SPREAD INLAND OVER THE CONUS WEST COAST.

...SOUTH-CENTRAL HIGH PLAINS...
DIURNALLY ENHANCED THUNDERSTORM DEVELOPMENT...MAINLY ON AN ISOLATED
BASIS...MAY OCCUR WEDNESDAY AFTERNOON IN VICINITY OF A
SEMI-PERSISTENT LEE TROUGH ACROSS THE REGION. ALTHOUGH OVERALL
FORCING AND DEEP-LAYER SHEAR /25 KT OR LESS/ WILL BE
WEAK...RELATIVELY STEEP LAPSE RATES AND MODERATE BUOYANCY MAY
CONTRIBUTE TO SOME STRONGER UPDRAFTS. PULSE-TYPE HAIL CANNOT BE
CONCLUSIVELY RULED OUT ACROSS PARTS OF THE REGION...BUT THE OVERALL
SCENARIO CURRENTLY APPEARS TOO MARGINAL TO WARRANT SEVERE
PROBABILITIES.

..GUYER.. 09/22/2014



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