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FNUS21 KWNS 090832
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0332 AM CDT FRI MAY 09 2008
VALID 091200Z - 101200Z
...CRITICAL FIRE WEATHER AREA FOR NRN AND ERN AZ / FAR SERN UT /
MOST OF NM / FAR WRN TX...
...SYNOPSIS...
AN UPPER-LEVEL TROUGH WILL DIG FROM THE PACIFIC NW/NRN GREAT
BASIN...REACHING THE NRN PLAINS TO THE CNTRL ROCKIES BY EARLY SAT. A
LOW AMPLITUDE SRN STREAM IMPULSE OFF THE BAJA CA COAST WILL EJECT
NEWD TOWARDS THE SRN ROCKIES/HIGH PLAINS. AT THE SURFACE...LOW
PRESSURE WILL BECOME CENTERED OVER SERN CO THIS AFTERNOON...WHILE A
COLD FRONT SETTLES SWD INTO THE CNTRL/SRN GREAT BASIN.
...CRITICAL FIRE WEATHER AREA - NRN AND ERN AZ / FAR SERN UT / MOST
OF NM / FAR WRN TX...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH / LONG-TERM DRYNESS
A BROAD SWATH OF MODERATELY STRONG MID-LEVEL W/SWLYS WILL OVERSPREAD
MUCH OF THE SRN ROCKIES AND SRN GREAT BASIN. THIS WOULD TYPICALLY
RESULT IN A WIDESPREAD CRITICAL THREAT GIVEN LOW RH ACROSS THE
REGION. HOWEVER...A SRN STREAM IMPULSE AND ASSOCIATED
MID/UPPER-LEVEL CLOUD COVERAGE WILL HINDER INSOLATION AND LIKEWISE
VERTICAL MIXING...MAINLY INVOF SRN ROCKIES. MODEL GUIDANCE DIFFER
WITH THE OVERALL IMPACT ON SURFACE WINDS AND POTENTIAL INCREASE IN
RH. NEVERTHELESS...CONSENSUS OF GUIDANCE SUGGEST AREAS OF SUSTAINED
SURFACE WINDS SHOULD REACH 20 TO 25 MPH AROUND PEAK HEATING WITH RH
VALUES FALLING TO BETWEEN 8 TO 15 PERCENT.
..GRAMS.. 05/09/2008
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
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