Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 280046
SWODY1
SPC AC 280044

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0644 PM CST FRI FEB 27 2015

VALID 280100Z - 281200Z

...NO SVR TSTM AREAS FORECAST...

...SUMMARY...
SPORADIC...WEAK THUNDERSTORMS ARE POSSIBLE TONIGHT FROM NORTHERN
CALIFORNIA SOUTHEASTWARD ACROSS THE GREAT BASIN.

...SYNOPSIS...
AN UPPER TROUGH WILL CONTINUE TO SINK SWD ACROSS THE WRN STATES WITH
COLD AIR ALOFT HELPING TO SUPPORT SCATTERED THUNDERSTORMS FROM NRN
CA INTO NV LATE THIS EVENING. GIVEN SUCH COOL AIR ALOFT...SMALL HAIL
MAY OCCUR WITH THE STRONGEST CELLS.

TONIGHT...ISOLATED THUNDERSTORMS WILL REMAIN POSSIBLE DESPITE LOSS
OF HEATING ACROSS THE GREAT BASIN INTO THE FOUR CORNERS STATES WITH
LOW PRESSURE OVER SRN NV AND LOW-LEVEL WARM ADVECTION AND UPSLOPE
FLOW ACROSS NRN AZ AND SRN UT. VERY WEAK INSTABILITY WILL LIKELY
PRECLUDE ANY SEVERE THREAT.

..JEWELL.. 02/28/2015



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