Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 240801
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0301 AM CDT THU SEP 24 2009
VALID 241200Z - 251200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
AN UPPER RIDGE AXIS WILL EXTEND FROM NRN CA INTO MT...BUT WILL
WEAKEN AS AN UPPER SHORTWAVE TROUGH SKIRTS THE PACIFIC NW. VERY HOT
AND DRY WEATHER WILL PERSIST UNDER THIS RIDGE...WITH FAVORABLE FIRE
GROWTH CONDITIONS DURING THE AFTERNOON DESPITE RELATIVELY WEAK
WINDS.
ELSEWHERE...COOLER AND DRIER WEATHER WILL PREVAIL ACROSS THE NERN
STATES IN A POST FRONTAL AIR MASS...AND AN UPPER LOW WILL REMAIN
STATIONARY OVER THE CNTRL PLAINS...PROVIDING COOL CONDITIONS AND
LOCALIZED AFTERNOON SHOWERS FROM CO INTO THE MID MS VALLEY.
...INLAND SRN CA...
LOCALLY GUSTY WINDS WILL EXIST THIS MORNING NEAR WIND PRONE PASSES
AND CANYONS WITH LOW RH TO START THE DAY. VERY LOW RH INTO THE
SINGLE DIGITS WILL AGAIN EXIST WITH VERY WARM TEMPERATURES OVER 100
F INLAND. WHILE LOCALIZED WIND GUSTS TO 20 MPH WILL REMAIN
POSSIBLE...WINDS WILL GENERALLY DECREASE THROUGHOUT THE DAY WITH A
WEAKER PRESSURE GRADIENT. STILL...THE LONG DURATION OF HOT AND VERY
DRY CONDITIONS WILL CREATE A VERY UNSTABLE ATMOSPHERE FAVORABLE FOR
FIRE GROWTH.
...CNTRL AND SERN OREGON...
A WEAK UPPER TROUGH WILL MOVE ACROSS WA THIS AFTERNOON...WITH A LOW
PRESSURE TROUGH FROM ERN WA INTO SERN ORE. NWLY WINDS OF 10-15 MPH
WILL EXIST W OF THIS TROUGH...WITH RH GENERALLY IN THE 15-20 PERCENT
RANGE. LOWER RH NEAR 10 PERCENT IS LIKELY OVER SERN ORE...BUT WINDS
WILL BE LIGHT THERE. IN ADDITION...VERTICAL TEMPERATURES AND
HUMIDITY PROFILES WILL BE A BIT LESS FAVORABLE FOR EXISTING FIRE
GROWTH AS COMPARED TO THE PREVIOUS TWO DAYS.
...N CNTRL AND NERN MT...
A WEAK SURFACE LOW PRESSURE TROUGH WILL DEVELOP ALONG THE E SLOPES
TODAY...AN EXTENSION OF A STRONGER TROUGH EXTENDING N INTO CANADA.
AS A RESULT...SLY WINDS WILL INCREASE AND BY AFTERNOON...SUSTAINED
SPEEDS OF 15-20 MPH APPEAR LIKELY WITH LOCALLY HIGHER GUSTS. RH
SHOULD DIP INTO THE MID TEENS FOR A MARGINAL FIRE WEATHER THREAT
THIS AFTERNOON.
..JEWELL.. 09/24/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 240801
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0301 AM CDT THU SEP 24 2009
VALID 251200Z - 261200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
AN UPPER RIDGE WILL REMAIN OVER MUCH OF THE WRN STATES PROVIDING
CONTINUED VERY WARM AND DRY WEATHER FROM CA INTO THE WRN GREAT BASIN
AND PACIFIC NW. THE UPPER LOW OVER THE CNTRL PLAINS WILL BEGIN TO
EJECT NEWD LATE FRIDAY NIGHT AS A POWERFUL UPPER JET BEGINS TO DROP
SEWD OUT OF WRN CANADA. MEANWHILE...ANOTHER UPPER TROUGH WILL DIVE
SEWD ACROSS NEW ENGLAND...WITH A STRONG AREA OF HIGH PRESSURE
BUILDING IN BEHIND A COLD FRONT. GUSTY WINDS AND COOL CONDITIONS
WILL PREVAIL THERE.
...SRN CA...
WEAK OFFSHORE FLOW WILL PERSIST ACROSS MUCH OF SRN CA FRIDAY WITH
LOCALIZED WIND GUSTS THROUGH FAVORED MOUNTAINOUS AREAS. RH WILL
AGAIN BEGIN THE DAY LOW...AND WILL LOWER FURTHER TO EXTREME LEVELS
IN THE SINGLE DIGITS. THE LONG DURATION OF LOW RH AND UNSTABLE
ATMOSPHERE WILL AGAIN FAVOR FIRE GROWTH WITH ANY EXISTING FIRES.
..JEWELL.. 09/24/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...