Fire Weather Outlook Discussion
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000
FNUS21 KWNS 271640
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1139 AM CDT SUN JUL 27 2014

VALID 271700Z - 281200Z

NO CHANGES HAVE BEEN MADE TO THE ONGOING FORECAST.

..COHEN.. 07/27/2014

.PREV DISCUSSION... /ISSUED 0335 AM CDT SUN JUL 27 2014/

...SYNOPSIS...
THE UPPER AIR PATTERN WILL BE DOMINATED BY A TROUGH OVER THE EAST
AND A LARGE RIDGE OVER THE WEST.  A WEAK UPPER DISTURBANCE MOVING
NWD ALONG THE CA COAST THIS MORNING WILL MOVE ACROSS OREGON DURING
THE PERIOD.  A COLD FRONT AND SURFACE HIGH WILL BUILD SWD THROUGH
THE CENTRAL U.S.

...EXTRM NRN CA AND SWRN/CNTRL OREGON...
THE UPPER DISTURBANCE MOVING ACROSS THE AREA DURING THE PERIOD MAY
COMBINE WITH MARGINAL INSTABILITY DURING THE AFTERNOON TO PRODUCE
ISOLATED DRY THUNDERSTORMS.  HIGHS WILL BE IN THE 80S AND 90S WITH
SURFACE HUMIDITY FROM 10 TO 15 PERCENT.  PW WILL BE FROM 0.5 TO 0.75
AND ANY STORMS THAT DO FORM WILL HAVE HIGH CLOUD BASES AND A DRY SUB
CLOUD LAYER LEADING TO VERY LITTLE PRECIPITATION REACHING THE
GROUND.  FUELS ARE DRY TO VERY DRY ACROSS THE AREA.

...ECNTRL NV AND WCNTRL UT...
THIS AREA MAY HAVE SOME ISOLATED DRY THUNDERSTORMS AS IT REMAINS ON
THE NRN EDGE OF THE MONSOONAL MOISTURE.  HIGHS WILL BE IN THE 80S
AND 90S AND HUMIDITY WILL BE FROM 15 TO 25 PERCENT.

...SRN CA...
SOME ISOLATED THUNDERSTORMS ARE EXPECTED OVER PTNS OF SRN CA SUNDAY.
MOST STORMS WILL PRODUCE SOME WETTING RAINS GIVEN THE MUCH HIGHER PW
VALUES OF 1.25 TO 1.5 INCHES.  HOWEVER...GIVEN THE VERY DRY FUELS
ACROSS THE AREA...LIGHTNING OUTSIDE THE MAIN RAIN AREAS COULD CAUSE
SOME IGNITIONS.

...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...




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