Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 220915
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0315 AM CST MON JAN 22 2007
VALID 221200Z - 231200Z
...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL AREAS...
...SYNOPSIS...
DEEP MID/UPPER-LEVEL LOW OVER SRN AZ WILL DRIFT SLOWLY SEWD INTO NRN
SONORA AND GRADUALLY WEAKEN. A LARGE UPPER RIDGE WILL EXPAND NEWD
OFF THE CA COAST/PACIFIC NORTHWEST ACROSS THE NRN/CNTRL
INTERMOUNTAIN WEST. SURFACE HIGH PRESSURE WILL REMAIN ANCHORED
ACROSS THE GREAT BASIN.
...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL AREAS...
PRIMARY CONDITIONS: LONG DURATION OF LOW RH / GUSTY OFFSHORE WINDS /
LONG-TERM DROUGHT
GUSTY OFFSHORE WINDS HAVE BEEN ONGOING THIS MORNING DOWNSLOPE OF THE
COASTAL MTNS WITH POOR OVERNIGHT RH RECOVERY. A CONTINUATION OF
OFFSHORE WINDS THROUGH THE PERIOD WILL LEAD TO A VERY LONG DURATION
OF CRITICALLY LOW RH. MIN RH VALUES OF 3 TO 8 PERCENT WILL BECOME
COMMON THIS AFTERNOON AS TEMPERATURES WARM INTO THE 60S. AS THE
CUTOFF LOW OVER SRN AZ WEAKENS AND MOVES SLOWLY AWAY FROM THE
REGION...MID-LEVEL WIND SUPPORT WILL DIMINISH THIS AFTERNOON THROUGH
TONIGHT. HOWEVER...A MODERATE SURFACE PRESSURE GRADIENT SHOULD
MAINTAIN SUSTAINED WINDS OF 20 TO 25 MPH THIS EVENING THROUGH
TUESDAY MORNING...MAINLY ACROSS CANYONS/PASSES.
...LOWER CO RIVER VALLEY...
WITH NELY LOW-LEVEL WINDS TODAY...MOISTURE WILL INCREASE AS IT CURLS
SWWD IN ASSOCIATION WITH THE CYCLONE CROSSING S-CNTRL AZ. AS DAYTIME
HEATING COMMENCES AND LOW-LEVEL LAPSE RATES STEEPEN...MECHANICAL
MIXING WILL ALLOW THIS INCREASED MOISTURE TO REACH THE SURFACE. DEW
POINTS SHOULD BE AROUND 10 DEGREES HIGHER COMPARED TO SUNDAY.
ALTHOUGH TEMPERATURES WILL BE SLIGHTLY WARMER...RH VALUES WILL
LIKELY ONLY FALL TO AROUND 20 PERCENT. SURFACE WINDS WILL ALSO NOT
BE AS STRONG...GENERALLY FROM 15 TO 20 MPH.
..GRAMS.. 01/22/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 220918
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0318 AM CST MON JAN 22 2007
VALID 231200Z - 241200Z
...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL AREAS...
...SYNOPSIS...
A CUTOFF UPPER-LEVEL LOW OVER FAR NRN MEXICO WILL BECOME
QUASI-STATIONARY...WITH A LARGE UPPER-LEVEL HIGH SLOWLY MOVING
ONSHORE OVER NRN CA. SURFACE HIGH PRESSURE WILL SLOWLY MOVE EWD FROM
THE ERN GREAT BASIN TOWARDS THE CNTRL ROCKIES.
...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL AREAS...
PRIMARY CONDITIONS: LOW RH / OFFSHORE WINDS / LONG-TERM DROUGHT
OFFSHORE WINDS...ALBEIT WEAKENING...WILL MAINTAIN LOW RH FOR MOST OF
THE PERIOD INVOF THE COASTAL RANGE. WITH DAYTIME TEMPERATURES
SLIGHTLY WARMER COMPARED TO DAY 1 AND POOR OVERNIGHT RH RECOVERY
EXPECTED TO BE ONGOING TUE MORNING...SEVERAL HOURS OF RH AOB 15
PERCENT SHOULD DEVELOP. HOWEVER...MODEL GUIDANCE HAS TRENDED FASTER
WITH RELAXING THE SURFACE PRESSURE GRADIENT ACROSS THE AREA...WITH
GENERALLY LIGHT AND VARIABLE FLOW TUE AFTERNOON. DIURNAL
INTENSIFICATION OF THE PRESSURE GRADIENT TUE NIGHT SHOULD LEAD TO
SUSTAINED NELY WINDS AROUND 20 MPH...MAINLY ACROSS CANYONS/PASSES.
OVERALL...IT APPEARS CRITICAL CONDITIONS WILL BECOME MORE LOCALIZED
WITH TIME.
..GRAMS.. 01/22/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...