Fire Weather Outlook Discussion
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FNUS22 KWNS 201631
FWDDY2

DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1131 AM CDT SUN APR 20 2014

VALID 211200Z - 221200Z

NO APPRECIABLE CHANGE FOR CNTRL NV EXCEPT THE FORECAST MINIMUM RH
MAY SLIGHTLY BE HIGHER THAN PREVIOUSLY STATED.  FORECAST SOUNDINGS
OVER SRN NV SHOW RH FALLING INTO THE 10-15 PERCENT RANGE BUT FARTHER
N IN S-CNTRL NV...VALUES MAY ONLY FALL INTO THE 12-18 PERCENT RANGE.
ON THE NRN PERIPHERY OF THE ELEVATED AREA...RH MAY ONLY FALL TO
AROUND 15 PERCENT BRIEFLY AND GENERALLY RANGE IN THE 15-20 PERCENT
RANGE PER FORECAST SOUNDINGS.  NONETHELESS...ELEVATED CONDITIONS ARE
PROBABLE WHERE FUELS ARE RECEPTIVE TO FIRE SPREAD.

..SMITH.. 04/20/2014

.PREV DISCUSSION... /ISSUED 0241 AM CDT SUN APR 20 2014/

...SYNOPSIS...
A LOW-AMPLITUDE LARGE-SCALE PATTERN WILL INITIALLY BE IN PLACE
ACROSS MOST OF THE CONUS...AS STRONGER BELT OF NRN-STREAM WLYS
REMAINS CONFINED TO THE NRN TIER. A PACIFIC UPPER TROUGH WILL
AMPLIFY SIGNIFICANTLY THROUGH THE PERIOD AND SHIFT ONSHORE BY 12Z
TUE MORNING. AT THE SFC...LOW PRESSURE WILL DEEPEN OVER THE
INTER-MOUNTAIN WEST...FOSTERING AN INCREASE IN SWLY WINDS ACROSS THE
WRN GREAT BASIN. A COLD FRONT EXTENDING FROM THE TX RIO GRANDE
VALLEY NEWD INTO THE GREAT LAKES WILL PROGRESS EWD...WITH
POST-FRONTAL HIGH PRESSURE ENCOMPASSING MOST OF THE GREAT PLAINS.

...CNTRL NV...
A MODEST INCREASE IN SWLY FLOW WILL OCCUR IN RESPONSE TO A
TIGHTENING SFC PRESSURE GRADIENT...SUPPORTING SUSTAINED WIND SPEEDS
NEAR 20 MPH DURING THE AFTERNOON. FORECAST MODEL SOUNDINGS DEPICT A
DRY AND WELL-MIXED BOUNDARY LAYER...WHICH IS LIKELY TO YIELD RH
VALUES AS LOW AS 10 PERCENT. THESE CONDITIONS WILL BE SUPPORTIVE OF
AN ELEVATED FIRE WEATHER THREAT.

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




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