Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 221248
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0748 AM CDT FRI SEP 22 2006
VALID 221200Z - 231200Z
...CRITICAL FIRE WEATHER AREA FOR NRN CA...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA AND LOWER CO
RIVER VALLEY...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF E-CNTRL NM...NWRN
TX...SWRN OK...
...SYNOPSIS...
LARGE MID/UPPER-LEVEL TROUGH WILL REMAIN ANCHORED ACROSS THE
NRN/CNTRL ROCKIES INTO THE UPPER MIDWEST. STRONG CYCLONIC FLOW WILL
BE PRESENT AROUND THIS TROUGH FROM THE PACIFIC NW THROUGH THE SRN
GREAT BASIN AND ACROSS THE CNTRL/SRN PLAINS. AT THE SURFACE...LOW
PRESSURE WILL INTENSIFY THIS AFTERNOON ACROSS THE TX/OK PANHANDLES.
SURFACE HIGH PRESSURE WILL DEVELOP SWD ACROSS THE PACIFIC NW INTO
THE NRN GREAT BASIN. A STEEP PRESSURE GRADIENT ACROSS NRN CA WILL
BUILD SWD INTO SRN CA.
...CRITICAL FIRE WEATHER AREA - NRN CA...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH / SHORT-TERM DRYNESS
A STRONG SURFACE PRESSURE GRADIENT WAS ALREADY PRESENT THIS MORNING
AND HAS HELPED GUSTY N/NELY WINDS MAINTAIN POOR RH RECOVERY ACROSS
PORTIONS OF THE NRN SACRAMENTO VALLEY. REGIONAL WIND PROFILERS
INDICATE A NLY LOW-LEVEL JET OF AROUND 40 TO 60 MPH EXISTS ACROSS
THIS AREA. DAYTIME HEATING WILL PROVIDE ADDITIONAL MIXING OF THESE
STRONG WINDS...WITH A GRADUAL SHIFT TO ELY DIRECTION OVER TIME.
SUSTAINED SURFACE WINDS OF 20 TO 30 MPH WILL BE COMMON DOWNWIND OF
THE SISKIYOUS/SIERRAS/COASTAL MTNS. LOCAL GUSTS OF 40 TO 50 MPH WILL
ALSO OCCUR...MAINLY IN FAVORABLY ORIENTED CANYON/PASSES. SUBSIDENCE
ASSOCIATED WITH THE DOWNSLOPE FLOW WILL ENHANCE DRYING WITH DEW
POINTS LIKELY IN THE TEENS AND 20S. AS TEMPERATURES WARM INTO THE
70S/80S...MIN RH VALUES WILL FALL TO AROUND 6 TO 12 PERCENT. SURFACE
WINDS WILL DIMINISH SOMEWHAT TONIGHT. HOWEVER...CONTINUED MODERATE
FLOW WILL SUPPORT POOR RH RECOVERY...ESPECIALLY ALONG WRN SLOPES OF
THE SIERRAS.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF SRN CA AND LOWER CO
RIVER VALLEY...
PRIMARY CONDITIONS: GUSTY WINDS / LOW RH / SHORT-TERM DRYNESS
A COLD FRONT MOVING ACROSS CNTRL/SRN NV THIS MORNING WILL PUSH A
SURGE OF DRY NLY WINDS ACROSS THE MOJAVE DESERT/LOWER CO RIVER
VALLEY BY THIS AFTERNOON. THE SURFACE PRESSURE GRADIENT WILL
INCREASE BEHIND THIS FRONT...AS HIGH PRESSURE BUILDS INTO THE NRN
GREAT BASIN. SUSTAINED NLY WINDS OF 20 TO 25 MPH APPEAR LIKELY.
ALTHOUGH TEMPERATURES WILL BE COOLER...RH VALUES WILL STILL BE
CRITICALLY LOW FROM 8 TO 12 PERCENT. FURTHER W ACROSS THE SRN CA
COASTAL RANGE...OFFSHORE WINDS WILL SUBSTANTIALLY INCREASE THIS
EVENING AND OVERNIGHT. N/NELY WINDS SHOULD GUST TO AROUND 30 TO 40
MPH IN MANY LOCATIONS...WITH LOCALIZED HIGHER GUSTS AROUND 50 MPH.
RH VALUES SHOULD DROP TO CRITICALLY LOW VALUES THIS EVENING...FROM 6
TO 12 PERCENT. VERY POOR RH RECOVERY CAN BE EXPECTED AS THE WINDS
INCREASE IN STRENGTH OVERNIGHT.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF E-CNTRL NM...NWRN
TX...SWRN OK...
PRIMARY CONDITIONS: MODERATE WINDS / LOW RH
AS SURFACE LOW PRESSURE INTENSIFIES ACROSS THE OK/TX PANHANDLES...AN
AXIS OF CRITICALLY LOW RH AND STRONG WINDS SHOULD DEVELOP THIS
AFTERNOON TO THE W/N OF A DRYLINE. DEW POINTS WERE GENERALLY IN THE
30S IN THE DRY SECTOR THIS MORNING. AS TEMPERATURES WARM INTO THE
80S TO MID 90S...RH VALUES WILL DROP TO AROUND 12 TO 18 PERCENT.
SURFACE WINDS WILL NOT BE AS STRONG AS ON THURSDAY...HOWEVER
SUSTAINED SPEEDS OF 20 TO 25 MPH STILL APPEAR LIKELY.
..GRAMS.. 09/22/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 220950
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0450 AM CDT FRI SEP 22 2006
VALID 231200Z - 241200Z
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA...
...SYNOPSIS...
A LARGE UPPER-LEVEL TROUGH ACROSS THE NRN PLAINS/CNTRL ROCKIES WILL
EJECT NEWD TOWARDS THE GREAT LAKES REGION. STRONG MID-LEVEL WINDS
WILL SPREAD ACROSS THE PLAINS...DIMINISHING ACROSS THE PACIFIC NW
AND NRN CA. SURFACE LOW PRESSURE SHOULD BECOME CENTERED ACROSS THE
WRN GREAT LAKES BY SATURDAY EVENING...WITH AN ASSOCIATED COLD FRONT
MOVING SEWD ACROSS THE MID-MS RIVER VALLEY AND SRN PLAINS. HIGH
PRESSURE WILL CONTINUE TO BUILD SEWD THROUGH THE NRN INTERMOUNTAIN
WEST.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF SRN CA...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH
ONGOING CRITICAL EVENT IS EXPECTED AT THE BEGINNING OF DAY 2 WITH
OFFSHORE FLOW LEADING TO STRONG GUSTY WINDS ALONG MUCH OF THE SRN CA
COASTAL RANGE. THE SURFACE PRESSURE GRADIENT WILL RELAX SOMEWHAT
DURING THE DAY...BUT SHOULD BECOME RATHER STRONG AGAIN ON SATURDAY
EVENING/NIGHT. HOWEVER...MID/UPPER-LEVEL WIND SUPPORT WILL SLOWLY
MOVE E OF THE AREA. THUS...WINDS SHOULD NOT BE QUITE AS STRONG ON
SUNDAY MORNING VERSUS SATURDAY MORNING. SUSTAINED SPEEDS OF 20 TO 30
MPH WILL BE LIKELY DURING THE NIGHTTIME/MORNING HOURS WITH LOCAL
GUSTS IN CANYONS/PASSES AROUND 40 TO 50 MPH POSSIBLE. TEMPERATURES
SHOULD BE QUITE WARM DURING THE AFTERNOON /IN THE 80S TO LOWER
90S/...AIDED BY DOWNSLOPE FLOW. VERY LOW RH OF 5 TO 10 PERCENT CAN
BE EXPECTED. THE GUSTY OVERNIGHT WINDS WILL PROVIDE POOR RH
RECOVERY.
...NRN CA...
GUSTY WINDS SHOULD BE ONGOING SATURDAY MORNING SUPPORTING POOR RH
RECOVERY. AS TEMPERATURES WARM INTO THE 70S AND 80S ONCE
AGAIN...CRITICALLY LOW RH VALUES OF 8 TO 12 PERCENT WILL DEVELOP.
HOWEVER...MID/UPPER-LEVEL WINDS ARE FORECAST TO WEAKEN CONSIDERABLY
SATURDAY MORNING. SUSTAINED WINDS SHOULD REMAIN BELOW 20 MPH IN MOST
AREAS ON SATURDAY AFTERNOON...PRECLUDING A CRITICAL AREA ISSUANCE
ATTM. WITH A MODERATE SURFACE PRESSURE GRADIENT ACROSS THE
AREA...LOCALIZED HIGHER GUSTS NEAR 25 TO 30 MPH COULD STILL OCCUR
ALONG THE WRN SLOPES OF THE SIERRAS.
..GRAMS.. 09/22/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...