Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 210902
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0402 AM CDT THU SEP 21 2006
VALID 211200Z - 221200Z
...CRITICAL FIRE WEATHER AREA FOR ERN NM...NWRN TX...FAR SWRN OK...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA...
...SYNOPSIS...
STRONG UPPER-LEVEL LOW OVER NRN NM WILL LIFT NEWD INTO THE UPPER MS
RIVER VALLEY BY FRIDAY MORNING. AT THE SURFACE...LOW PRESSURE WILL
TRACK FROM ERN CO TO THE LOWER MO RIVER VALLEY. AN ASSOCIATED DRY
LINE/COLD FRONT WILL PUSH ACROSS THE HIGH PLAINS. BEHIND THIS
SYSTEM...ADDITIONAL SHORTWAVE ENERGY WILL DIVE SWD FROM THE PACIFIC
NW THROUGH THE GREAT BASIN. SURFACE LOW PRESSURE WILL RAPIDLY
STRENGTHEN ACROSS THE MOJAVE DESERT/SRN NV.
...CRITICAL FIRE WEATHER AREA - ERN NM...NWRN TX...FAR SWRN OK...
PRIMARY CONDITIONS: VERY STRONG WINDS / LOW RH
REGIONAL WIND PROFILERS ALREADY INDICATE A 45 TO 60 MPH LOW-LEVEL
JET EXISTS THIS MORNING. ALTHOUGH THIS JET WILL GRADUALLY WEAKEN AS
THE POTENT LOW PRESSURE SYSTEM LIFTS NE...DAYTIME HEATING WILL ALLOW
LOW-LEVEL LAPSE RATES TO STEEPEN AND HELP TO MIX THESE STRONG WINDS
TOWARDS THE SURFACE. IN ADDITION...DOWNWARD MOMENTUM TRANSPORT WILL
BE MAXIMIZED AFTER THE PASSAGE OF THE DRY LINE/COLD FRONT. SUSTAINED
W/SWLY SURFACE WINDS OF 25 TO 35 MPH APPEAR QUITE LIKELY...WITH
GUSTS TOWARDS 45 TO 50 MPH. CURRENTLY...LOW-LEVEL MOISTURE IS
ABUNDANT OVER MUCH OF THE CRITICAL AREA. SUBSIDENCE BEHIND FRONTAL
PASSAGE WILL HELP RAPIDLY DRY THE LOW-LEVELS AND WILL LEAD TO
CRITICALLY LOW RH BY AFTERNOON. MIN RH VALUES WILL DROP TO 10 TO 15
PERCENT W...WITH 15 TO 20 PERCENT E.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF SRN CA...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH / SHORT-TERM DRYNESS
AS SURFACE LOW PRESSURE RAPIDLY INTENSIFIES LATE THIS
AFTERNOON/EARLY EVENING ACROSS THE MOJAVE DESERT/SRN NV...A STRONG
SURFACE PRESSURE GRADIENT WILL DEVELOP ALONG THE SRN CA COASTAL
RANGE. THIS WILL LIKELY LEAD TO SUSTAINED WINDS OF 20 TO 25 MPH NEAR
SUNSET ACROSS THE ANTELOPE VALLEY REGION. ALTHOUGH DAYTIME HEATING
MAY BE TEMPERED SOMEWHAT BY MID/HIGH-LEVEL CLOUDINESS AHEAD OF THE
PACIFIC NW/GREAT BASIN SHORTWAVE...TEMPERATURES SHOULD STILL WARM
INTO THE 80S. WITH DEW POINTS IN THE 20S...CRITICALLY LOW RH OF 10
TO 15 PERCENT WILL BE PRESENT NEAR THE COMMENCING OF THE STRONG
WINDS.
...PORTIONS OF NRN CA/NWRN NV...
N/NWLY WINDS WILL INCREASE BY EARLY EVENING S OF THE SISKIYOUS IN
NRN CA AND ACROSS NWRN NV...AS A COLD FRONT AND MID-LEVEL SHORTWAVE
TROUGH PASS THROUGH THE REGION. SURFACE WINDS SHOULD EXCEED 20 MPH
WITH GUSTS LIKELY AROUND 30 MPH. HOWEVER...RH VALUES SHOULD REMAIN
ABOVE CRITICAL VALUES IN MOST AREAS...WITH MID/UPPER-LEVEL
CLOUDINESS LIMITING HEATING AHEAD OF THE WAVE AND STRONG COOLING
EXPECTED BEHIND THE FRONT IN THE EVENING. BRIEF CRITICAL CONDITIONS
COULD OCCUR ACROSS THE NRN SACRAMENTO VALLEY WHERE RH VALUES SHOULD
BE MARGINALLY LOW AROUND FRONTAL PASSAGE.
..GRAMS.. 09/21/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 210953
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0453 AM CDT THU SEP 21 2006
VALID 221200Z - 231200Z
...CRITICAL FIRE WEATHER AREA FOR NRN CA...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA COASTAL
RANGE...
...CRITICAL FIRE WEATHER AREA FOR SERN NM...NWRN TX...
...SYNOPSIS...
AN UPPER-LEVEL LOW ACROSS THE UPPER MIDWEST WILL WEAKEN...AS ANOTHER
UPPER-LEVEL LOW MOVES EWD FROM THE ERN GREAT BASIN ACROSS THE CNTRL
ROCKIES. STRONG MID-LEVEL FLOW WILL BE PRESENT AROUND THE LOWS
ACROSS THE PACIFIC NW THROUGH THE SRN ROCKIES AND CNTRL PLAINS. AT
THE SURFACE...LOW PRESSURE SHOULD STRENGTHEN ACROSS THE OK/TX
PANHANDLES FRIDAY AFTERNOON.
...CRITICAL FIRE WEATHER AREA - NRN CA...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH / SHORT-TERM DRYNESS
WIND PROFILES SHOULD BE OPTIMALLY ALIGNED FOR DOWNSLOPE WINDS S OF
THE SISKIYOUS AND W OF THE SIERRAS INTO THE SACRAMENTO VALLEY...AND
POTENTIALLY W OF THE COASTAL MTNS. WITH A STRONG MID-LEVEL N/NELY
JET OVERHEAD...SUSTAINED SURFACE WINDS AROUND 20 TO 25 MPH APPEAR
LIKELY THROUGH MUCH OF THE DAY. THE STRONG DOWNSLOPE WILL LEAD TO
SUBSIDENCE AND ENHANCED DRYING HELPING TO PRODUCE CRITICALLY LOW RH
OF 8 TO 15 PERCENT DURING THE AFTERNOON. POOR RH RECOVERY IS
EXPECTED OVERNIGHT WITH MODERATE NELY WINDS CONTINUING.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF SRN CA COASTAL RANGE...
PRIMARY CONDITIONS: MODERATE WINDS / VERY LOW RH / SHORT-TERM
DRYNESS
OFFSHORE FLOW WILL STRENGTHEN LATE FRIDAY AS SURFACE HIGH PRESSURE
BEGINS TO BUILD INTO THE NRN GREAT BASIN. DRY CONDITIONS WILL
ALREADY BE PRESENT ACROSS THE REGION...AND SHOULD BE FURTHER
STRENGTHENED BY THE DOWNSLOPE N/NELY FLOW. VERY LOW RH VALUES OF 5
TO 10 PERCENT SHOULD DEVELOP LATE IN THE AFTERNOON AS DEW POINTS
DROP THROUGH THE TEENS. WIND SPEEDS SHOULD GENERALLY BE AROUND 15 TO
20 MPH OVER MOST AREAS...BUT WILL BE LOCALLY HIGHER IN
CANYONS/PASSES WITH GUSTS PERHAPS AS HIGH AS 40 MPH. VERY POOR RH
RECOVERY IS EXPECTED OVERNIGHT WITH LITTLE DECREASE IN WINDS.
...CRITICAL FIRE WEATHER AREA - SERN NM...NWRN TX...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH
SWLY WINDS WILL INCREASE ONCE AGAIN FRIDAY AFTERNOON AS SURFACE LOW
PRESSURE RAPIDLY STRENGTHENS ACROSS THE OK/TX PANHANDLES. SUSTAINED
SPEEDS WILL NOT BE AS HIGH AS ON THURSDAY...BUT SHOULD STILL REACH
2O TO 25 MPH. DAYTIME HEATING WILL LEAD TO STEEP LOW-LEVEL LAPSE
RATES...AND TEMPERATURES IN THE MID 80S TO MID 90S. DEW POINTS WILL
LIKELY MIX OUT INTO THE 30S...LEADING TO MIN RH VALUES OF 10 TO 15
PERCENT.
..GRAMS.. 09/21/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...