Fire Weather Outlook Discussion
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FNUS21 KWNS 280822
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0322 AM CDT THU MAY 28 2015

VALID 281200Z - 291200Z

...NO CRITICAL AREAS...

...SYNOPSIS...
A WEAK SHORTWAVE TROUGH WILL MOVE EWD OVER THE DESERT SOUTHWEST
TODAY...WHILE ANOTHER SHORTWAVE TROUGH MOVES FROM THE NRN
INTERMOUNTAIN REGION TO THE NRN/CNTRL ROCKIES. UPPER RIDGING WILL
BECOME ESTABLISHED OVER MUCH OF THE ERN CONUS. AT THE SFC...A LOW
WILL LIKELY DEEPEN OVER ERN CO/WRN KS THIS AFTERNOON AHEAD OF BOTH
UPPER TROUGHS. A LEE SFC TROUGH/DRYLINE SHOULD EXTEND SWWD FROM THIS
LOW ACROSS ERN NM AND FAR W TX. FURTHER E...HIGH PRESSURE WILL
REMAIN OVER THE WRN ATLANTIC...WITH ELY LOW-LEVEL FLOW OCCURRING
OVER THE FL PENINSULA.

...PORTIONS OF AZ AND NM...
BEHIND A SFC TROUGH/DRYLINE...RH VALUES OF LESS THAN 15 PERCENT WILL
LIKELY OCCUR ACROSS MUCH OF AZ AND NM THIS AFTERNOON AS TEMPERATURES
GENERALLY WARM INTO THE 80S AND 90S. HOWEVER...SIMILAR TO
YESTERDAY...SFC WINDS SHOULD NOT EXCEED 15 MPH ACROSS THIS REGION
EXCEPT ON AN ISOLATED/BRIEF BASIS OWING MAINLY TO A WEAK SFC
PRESSURE GRADIENT. THEREFORE...NO ELEVATED AREA IS NEEDED ACROSS
AZ/NM AT THIS TIME.

...PORTIONS OF INTERIOR SRN FL PENINSULA...
ELY LOW-LEVEL FLOW ON THE SRN PERIPHERY OF A SFC HIGH CENTERED OVER
THE WRN ATLANTIC WILL BRING DRIER AIR ACROSS PORTIONS OF INTERIOR
SRN FL PENINSULA TODAY. AS TEMPERATURES WARM INTO THE 80S...DIURNAL
MIXING OF THE BOUNDARY LAYER SHOULD REDUCE RH VALUES TO 30-40
PERCENT ACROSS THIS REGION FOR A FEW HOURS THIS AFTERNOON.
HOWEVER...BOTH WINDS ALOFT AND AT THE SFC ARE EXPECTED TO REMAIN
RATHER WEAK...WITH SUSTAINED LOW-LEVEL ELY FLOW AROUND 10-15
MPH...AND A FEW SFC GUSTS ABOVE 15 MPH POSSIBLE. GIVEN MARGINAL FUEL
DRYNESS...WINDS FORECAST TO GENERALLY REMAIN BELOW 15 MPH...AND
AFTER COORDINATION WITH THE FORECAST OFFICE IN MIAMI...AN ELEVATED
AREA HAS NOT BEEN INTRODUCED FOR THIS REGION.

..GLEASON.. 05/28/2015

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



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