Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 110833
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0333 AM CDT TUE SEP 11 2007
VALID 111200Z - 121200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A VERY STRONG UPPER TROUGH AND ASSOCIATED SURFACE LOW WILL MOVE
ACROSS THE GREAT LAKES INTO THE NE WITH SURFACE COLD FRONT TRAILING
SWWD FROM ERN NY INTO THE ERN CAROLINAS. BEHIND THIS SYSTEM..HIGH
PRESSURE WILL BUILD INTO THE CNTRL PART OF THE U.S. WITH COOLER AND
DRIER CONDITIONS. OUT WEST...AN UPPER RIDGE WILL EXIST WITH
CONTINUED WARM AND DRY WEATHER...THE EXCEPTION BEING THE FOUR
CORNERS VICINITY WHERE AFTERNOON THUNDERSTORMS WILL OCCUR.
...PACIFIC NW...
AN EXTREMELY DRY AIR MASS WILL BE IN PLACE TODAY AS HIGH PRESSURE
MODIFIES. AFTERNOON RH VALUES OF 5-10 PERCENT ARE ANTICIPATED OVER A
LARGE AREA FROM THE NWRN GREAT BASIN INTO ERN OREGON AND WA AS WELL
AS SRN AND WRN ID. THE VERY DRY CONDITIONS AND STRONG HEATING WILL
RESULT IN A MDT TO HIGH HAINES INDEX. ALTHOUGH WINDS WILL BE WEAK
MOST AREAS...WLY WINDS WILL INCREASE LATE IN THE DAY AND OVERNIGHT
ESPECIALLY INTO THE HIGHER TERRAIN OF WA AND NRN ID AHEAD OF AN
APPROACHING UPPER TROUGH THAT WILL AFFECT THE AREA ON WED.
..JEWELL.. 09/11/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 110840
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0340 AM CDT TUE SEP 11 2007
VALID 121200Z - 131200Z
...CRITICAL FIRE WEATHER AREA FOR ERN ID...MUCH OF MT...SRN AND WRN
WY...
...SYNOPSIS...
HIGH PRESSURE WILL SETTLE ACROSS THE MS VALLEY AND MIDWEST REGION AS
UPPER SYSTEM EXITS NEW ENGLAND. FARTHER W...ANOTHER STRONG UPPER
TROUGH WILL MOVE RAPIDLY SEWD INTO THE NWRN STATES WITH ASSOCIATED
SURFACE LOW OVER WRN ND/ERN MT DURING THE AFTERNOON. A STRONG COLD
FRONT AND WIND SHIFT WILL EXTEND FROM THIS LOW WWD INTO SRN MT AND
NRN WY WHERE WINDS WILL COMBINE WITH LOW RH TO PRODUCE CRITICAL FIRE
CONDITIONS.
ELSEWHERE...VERY WARM AND DRY CONDITIONS WILL PERSIST ACROSS THE
GREAT BASIN INTO SRN CA WHERE SINGLE DIGIT RH WILL OCCUR WITH
LOCALLY GUSTY AFTERNOON WINDS.
...CRITICAL FIRE WEATHER AREA - ERN ID...MUCH OF MT...SRN AND WRN
WY...
PRIMARY CONDITIONS: STRONG WINDS AHEAD OF AND BEHIND A COLD FRONT
AND LOW RH
IT WILL BECOME VERY WINDY FROM ID EWD TO THE NRN HIGH PLAINS AS A
LOW PRESSURE SYSTEM STRENGTHENS. BY MIDDAY...STRONG WLY WINDS OF
20-30 MPH ARE LIKELY OVER THE ENTIRE AREA AHEAD OF THE COLD FRONT
WHICH WILL BE OVER NRN MT. THIS FRONT WILL MOVE RAPIDLY
SEWD...CAUSING AN ABRUPT WIND SHIFT TO NWLY AT 20-30 MPH WITH HIGHER
GUSTS. BY LATE AFTERNOON THIS FRONT SHOULD EXTEND FROM ERN MT INTO
NRN WY. RH LEVELS AHEAD OF THE FRONT ARE LIKELY TO BE IN THE 10-20
PERCENT RANGE.
..JEWELL.. 09/11/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...