Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 030908
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0308 AM CST THU DEC 03 2009
VALID 031200Z - 041200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
LARGE-SCALE UPPER-LEVEL TROUGH WILL AMPLIFY ACROSS THE CNTRL CONUS.
AN EMBEDDED IMPULSE WILL DIVE SWD ALONG THE WRN PERIPHERY OF THE
TROUGH ACROSS THE INTERMOUNTAIN WEST INTO THE SOUTHWEST. IN THE WAKE
OF THIS IMPULSE...A SURFACE ANTICYCLONE WILL BUILD ALONG THE
NRN/CNTRL ROCKIES.
...SRN CA...
N/NELY LOW-LEVEL FLOW WILL STRENGTHEN OVER THE LOWER CO RIVER VALLEY
THIS EVENING AFTER A COLD FRONT PASSES IN ASSOCIATION WITH A
MID-LEVEL IMPULSE SHIFTING SWD INTO THE SOUTHWEST. MODEL CONSENSUS
SUGGESTS WINDS SHOULD REMAIN WEAK FARTHER WEST ALONG THE SRN CA
COASTAL RANGES...BUT BECOME LOCALLY GUSTY IN CANYONS/PASSES FROM THE
INLAND EMPIRE SWD ALONG THE PENINSULAR RANGES TOWARDS 12Z/FRI. COOL
TEMPERATURES /PRIMARILY IN THE 40S/ SHOULD MITIGATE LOW RH FROM
OCCURRING OVERNIGHT.
..GRAMS.. 12/03/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 030909
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0309 AM CST THU DEC 03 2009
VALID 041200Z - 051200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
HIGHLY-AMPLIFIED UPPER-LEVEL TROUGH WILL PERSIST FROM HUDSON BAY
S/SWWD THROUGH TX ON FRI. A VIGOROUS SHORT WAVE TROUGH WILL DIG SWD
FROM BRITISH COLUMBIA ACROSS THE PACIFIC NW/NRN INTERMOUNTAIN WEST
BY EARLY SAT. STOUT SURFACE ANTICYCLONE CENTERED INVOF THE CNTRL
ROCKIES WILL WEAKEN AS IT SHIFTS S/SEWD INTO THE SRN HIGH PLAINS.
...SRN CA COASTAL RANGES FROM THE SAN BERNARDINO MTNS SWD...
RELATIVELY HIGH UNCERTAINTY PERSISTS OVER THE INTENSIFICATION AND
DURATION OF OFFSHORE FLOW FRI MORNING FROM THE SAN BERNARDINO MTNS
SWD ALONG THE PENINSULAR RANGES OF SRN CA. ECMWF RUNS HAVE
CONSISTENTLY DEPICTED ONLY WEAK E/NELYS ACROSS THIS AREA. RECENT GFS
RUNS HAVE TRENDED CLOSER TO THE ECMWF...BUT STILL DEPICT A PERIOD OF
LOCALLY MODERATE WINDS AROUND 12Z/FRI. MAJORITY OF NAM-BASED SREF
MEMBERS REMAIN ON THE STRONGER SPECTRUM OF GUIDANCE AND ARE
SUGGESTIVE OF AREAS OF SUSTAINED SURFACE WINDS FROM 20 TO 25 MPH.
COOL TEMPERATURES PRIMARILY IN THE 40S AT 12Z/FRI...SHOULD MITIGATE
LOW RH FROM DEVELOPING UNTIL AFTER THE DIURNAL HEATING CYCLE HAS
COMMENCED. SINGLE-DIGIT RH VALUES SHOULD BECOME WIDESPREAD BY FRI
AFTERNOON ACROSS SRN CA AWAY FROM THE IMMEDIATE COASTAL AREA.
NEVERTHELESS...SURFACE WINDS SHOULD BE DIMINISHING LATER FRI MORNING
AS THE PRESSURE GRADIENT RELAXES. ANY JUXTAPOSITION OF STRONG WINDS
WITH LOW RH WOULD LIKELY BE SHORT-LIVED AND/OR LOCALIZED.
..GRAMS.. 12/03/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...