Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 130922
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0422 AM CDT FRI JUL 13 2007
VALID 131200Z - 141200Z
...CRITICAL FIRE WEATHER AREA FOR WA/ORE/ID/WRN MT/NERN NV/NRN
UT/WRN WY...
...SYNOPSIS...
EARLY MORNING WATER VAPOR LOOPS SHOW AN INITIAL WAVE ASSOCIATED WITH
ERN PACIFIC TROUGH MOVING THROUGH NRN CA/WRN ORE. UPPER PATTERN WILL
CHANGE LITTLE OVER THE NEXT DAY AS ERN PACIFIC TROUGH WILL MAKE
LITTLE EWD PROGRESS. SMALLER SCALE IMPULSES...HOWEVER...WILL MOVE
AROUND THE TROUGH...INCREASING THE CHANCE FOR TSTMS ACROSS THE
PACIFIC NORTHWEST/NRN ROCKIES TODAY. FARTHER EAST...HIGH PRESSURE
WILL REMAIN ANCHORED ACROSS THE ERN GREAT BASIN MAINTAINING ABOVE
NORMAL TEMPERATURES OVER MUCH OF THE WEST. CRITICAL FIRE CONDITIONS
ARE LIKELY TODAY ACROSS THE PACIFIC NORTHWEST AND NRN ROCKIES DUE TO
POTENTIAL FOR SCATTERED DRY TSTMS.
...CRITICAL FIRE WEATHER AREA - WA/ORE/ID/WRN MT/NERN NV/NRN UT/WRN
WY...
PRIMARY CONDITIONS: SCATTERED DRY TSTMS/MIN RH VALUES BELOW 15-25
PERCENT/CRITICALLY DRY FUELS/ABOVE NORMAL TEMPS
LARGE SCALE ASCENT ASSOCIATED WITH INITIAL ERN PACIFIC IMPULSE IS
SUPPORTING EARLY MORNING TSTMS ACROSS WRN WA. AS THIS FIRST
SHORTWAVE AFFECTS THE PACIFIC NORTHWEST TODAY...MORE TSTMS WILL
DEVELOP THIS AFTN ACROSS PORTIONS OF WA/ORE/ID AND WRN MT DUE TO
INCREASED LARGE SCALE ASCENT WITHIN AN UNSTABLE AIRMASS. SOME OF
THESE STORMS WILL CONTAIN LITTLE RAINFALL...AND THUS POSE A
SIGNIFICANT THREAT FOR NEW IGNITIONS AS WELL AS TO ONGOING
FIREFIGHTING OPERATIONS. EXPERIMENTAL GUIDANCE FROM THE NCEP SREF
SUGGESTS THE HIGHEST PROBABILITY FOR DRY TSTMS WILL EXTEND ALONG THE
ERN SLOPES OF THE CASCADES IN WA/ORE INCLUDING THE HIGHER ELEVATION
IN NERN ORE. FORECAST SOUNDINGS FROM BURNS ORE TO SPOKANE WA SHOW
ENVIRONMENT THAT IS DEEPLY MIXED BY AFTN...WITH TEMP/DEWPOINT
DEPRESSION VALUES AROUND 50-60 DEGREES. IN ADDITION TO THE THREAT OF
LIGHTNING...GUSTY OUTFLOW WINDS WILL BE LIKELY NEAR STORMS.
..TAYLOR.. 07/13/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 130956
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0456 AM CDT FRI JUL 13 2007
VALID 141200Z - 151200Z
...CRITICAL FIRE WEATHER AREA FOR ERN WA/NE ORE/ID/WRN MT/WRN WY...
...SYNOPSIS...
ERN PACIFIC TROUGH...WHICH HAS BEEN SLOW TO MOVE INLAND THUS
FAR...IS EXPECTED TO MAKE SOME EWD PROGRESS ON SATURDAY. ASSOCIATED
MID/UPPER LEVEL JETS WILL MOVE ONSHORE DURING THE PERIOD...WITH
STRONG SWLY FLOW ACROSS WA/ORE BY SAT EVENING. LARGE HIGH PRESSURE
RIDGE WILL REMAIN FAIRLY STATIONARY ACROSS THE ERN GREAT BASIN WITH
LARGE SCALE TROUGH PERSISTING ACROSS THE NERN CONUS. MAIN FIRE
WEATHER THREAT ON SATURDAY WILL BE FROM SCATTERED TSTMS ACROSS THE
NRN ROCKIES...SOME OF WHICH MAY CONTAIN DRY LIGHTNING STRIKES.
...CRITICAL FIRE WEATHER AREA - ERN WA/NE ORE/ID/WRN MT/WRN WY...
PRIMARY CONDITIONS: SCATTERED DRY TSTMS/MIN RH VALUES BELOW 20
PERCENT/CRITICALLY DRY FUELS/ABOVE NORMAL TEMPS
MAX TEMPERATURES ARE AGAIN FORECAST TO BE IN THE 90S OR LOWER 100S
ACROSS ERN WA/ERN ORE AND ID/WRN MT WITH MIN HUMIDITY VALUES BELOW
15-20 PERCENT. MID LEVEL MOISTURE COMBINED WITH INCREASING LARGE
SCALE LIFT WILL PROVIDE THE SUPPORT FOR SCATTERED TSTMS FROM NERN WA
THROUGH PORTIONS OF ID/WRN MT. FORECAST SOUNDINGS SUGGEST THAT
ALTHOUGH PW VALUES WILL BE INCREASING...THERE WILL BE LARGE
TEMP/DEWPOINT SPREADS ON THE ORDER OF 50+ DEGREES...SUGGESTING THAT
MANY STORMS MAY CONTAIN LITTLE RAIN. EVEN WITH STORMS THAT DO
CONTAIN WETTING RAINS...ANY LIGHTNING POSES A THREAT TO ONGOING
FIREFIGHTING OPERATIONS AS WELL AS NEW IGNITIONS GIVEN CRITICALLY
DRY FUELS.
..TAYLOR.. 07/13/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...