Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 260826
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0326 AM CDT MON OCT 26 2009
VALID 261200Z - 271200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
AN UPPER-LEVEL TROUGH FROM THE N-CNTRL CONUS TO THE SRN ROCKIES WILL
GRADUALLY PROGRESS EWD...WHILE A BROAD UPSTREAM TROUGH REACHES THE
CANADIAN ROCKIES TO NRN CA/GREAT BASIN BY EARLY TUE. SURFACE
ANTICYCLONE OVER THE CNTRL ROCKIES WILL WEAKEN AS IT SHIFTS SEWD
ONTO THE SRN PLAINS.
...SRN CA COASTAL MTNS...
RECENT MESONET OBSERVATIONS CONFIRM LOCALIZED CRITICAL CONDITIONS
HAVE BEEN ONGOING WITH SUSTAINED OFFSHORE WINDS OF 15 TO 25
MAINTAINING LITTLE RH RECOVERY /VALUES OF 8 TO 15 PERCENT/ IN
FAVORED CANYONS/PASSES. WINDS WILL RAPIDLY DIMINISH AS THE SURFACE
PRESSURE RELAXES SUBSTANTIALLY BETWEEN 12-18Z. NEVERTHELESS...A
RATHER LONG DURATION OF LOW RH WILL CONTINUE THROUGH THE
AFTERNOON/EVENING...BEFORE NEUTRAL TO WEAK ONSHORE FLOW DEVELOPS.
..GRAMS.. 10/26/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 260830
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0330 AM CDT MON OCT 26 2009
VALID 271200Z - 281200Z
...CRITICAL FIRE WEATHER AREA FOR AZ...WRN NM...FOUR CORNERS...
...SYNOPSIS...
MAJOR AMPLIFICATION OF A WRN CONUS UPPER-LEVEL TROUGH WILL OCCUR
THROUGH THE DAY 2 PERIOD AS AN INTENSE NWLY MID-LEVEL JET /125 TO
150 MPH AT 500 MB/ DIVES SWD ALONG THE CA COAST. MID-LEVEL W/SWLYS
WILL STRENGTHEN DOWNSTREAM OF THE TROUGH AXIS AIDING IN THE
DEEPENING OF A SURFACE CYCLONE THAT SHOULD BECOME CENTERED OVER THE
FOUR CORNERS BY EARLY WED. ATTENDANT COLD FRONT SHOULD STRETCH FROM
THE UT/AZ BORDER INTO SRN CA TUE AFTERNOON AND CONTINUE TO PUSH SEWD
TOWARDS THE SRN ROCKIES/NRN BAJA CA.
...CRITICAL FIRE WEATHER AREA - AZ...WRN NM...FOUR CORNERS...
PRIMARY CONDITIONS: VERY STRONG WINDS / LOW RH / ABNORMAL DRYNESS TO
SEVERE DROUGHT
LOW/MID-LEVEL W/SWLYS WILL INTENSIFY SUBSTANTIALLY TUE ACROSS THE
SOUTHWEST DOWNSTREAM OF AN AMPLIFYING LARGE-SCALE TROUGH. AS THE
MIXED BOUNDARY LAYER DEEPENS...SUSTAINED SURFACE WINDS OF 25 TO 35
MPH WILL LIKELY BECOME WIDESPREAD BY MID/LATE AFTERNOON. AN
ANTECEDENT DRY AIR MASS WILL BE MAINTAINED AHEAD OF A SHARP COLD
FRONT WITH RH VALUES GENERALLY DROPPING TO BETWEEN 10 AND 15
PERCENT. HIGH-END TO LOCALIZED EXTREME CONDITIONS APPEAR
PROBABLE...ESPECIALLY INVOF MONGOLLON RIM IN AZ.
...PORTIONS OF THE SRN CA COASTAL RANGE...
MARGINAL TO SHORT-DURATION CRITICAL CONDITIONS MAY DEVELOP INVOF
HIGHER TERRAIN N/NW OF THE LOS ANGELES BASIN AROUND PEAK HEATING
TUE. SUSTAINED N/NWLY SURFACE WINDS OF 20 TO 30 MPH SHOULD DEVELOP
IN THE WAKE OF A COLD FRONT PASSAGE LATE MORNING/EARLY AFTERNOON ON
TUE. DOWNSLOPE EFFECTS/DAYTIME HEATING WILL COMPENSATE FOR STRONG
LOW-LEVEL CAA...AND SURFACE RH VALUES MAY BRIEFLY BECOME MARGINALLY
LOW /AROUND 15 PERCENT/. CONTINUED CAA DURING THE EVENING/OVERNIGHT
SHOULD AID IN MODEST RH RECOVERY DESPITE THE GUSTY NLY WINDS.
..GRAMS.. 10/26/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...