Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 141855
DAY 1 FIRE WEATHER OUTLOOK RESENT 1
NWS STORM PREDICTION CENTER NORMAN OK
0155 PM CDT MON SEP 14 2009
VALID 141200Z - 151200Z
...CRITICAL FIRE WEATHER AREA FOR NERN NV/NRN UT/SRN ID...
...SYNOPSIS...
...RESENT PER REQUEST...
AN UPPER TROUGH WILL MOVE EWD INTO THE GREAT BASIN...WHILE A SECOND
UPPER LOW NEAR THE SRN ALBERTA/SASKATCHEWAN BORDER CONTINUES TO
DRIFT NWD. MEANWHILE AT THE SURFACE...A TROUGH AXIS INITIALLY
POSITIONED OVER ERN WA/ORE...WRN ID...AND NRN NV WILL SLOWLY SHIFT
EWD THROUGH THE DAY AHEAD OF THE APPROACHING UPPER TROUGH...BECOMING
ORIENTED ROUGHLY THROUGH WRN MT SWWD INTO ID/NV/CNTRL CA BY
AFTERNOON. DRY THUNDERSTORMS WILL BE POSSIBLE ACROSS PORTIONS OF
NV/UT/ID. RELATIVE HUMIDITIES ARE ANTICIPATED TO REMAIN ABOVE
CRITICAL THRESHOLDS...WHILE WINDS AT THE SURFACE WILL BE
SUBCRITICAL.
...CRITICAL FIRE WEATHER AREA - NERN NV/NRN UT/SRN ID...
PRIMARY CONDITIONS: DRY THUNDERSTORMS
AN UPPER TROUGH OBSERVED ON WV IMAGERY NEAR THE CA/ORE COASTS AS OF
07Z WILL PROGRESS EWD AND BECOME MORE NEGATIVELY TILTED THROUGH THE
DAY. ORIENTATION OF THE SYSTEM AND A SURFACE TROUGH AXIS WILL
SUPPORT VERTICAL MOTION FOR THUNDERSTORM DEVELOPMENT THROUGH THE
PERIOD...MAINLY OVER PORTIONS OF NERN NV/NRN UT/SRN ID. MID LEVEL
MOISTURE REMAINS SUFFICIENT...WHILE COOLING ALOFT WITH THE APPROACH
OF THE SYSTEM WILL FURTHER DESTABILIZE THE ATMOSPHERE...AND MAY
FAVOR MORE WIDESPREAD COVERAGE OF STORMS COMPARED TO YESTERDAY. 00Z
SOUNDINGS REFLECT DRY LOW LEVELS...PRIMARILY BELOW 600 MB...WHICH AS
HEATING OCCURS AND LOW LEVEL LAPSE RATES BEGIN TO STEEPEN...DRY
THUNDERSTORMS WILL BE POSSIBLE. GREATER MOISTURE OBSERVED ON RECENT
PWAT IMAGERY IS GRADUALLY SHIFTING NEWD...AND A SHIFT FROM DRY TO
WET THUNDERSTORMS WILL BEGIN TO OCCUR BY EVENING. STORMS WILL MOVE
TO THE NNE.
..HURLBUT.. 09/14/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 141857
DAY 2 FIRE WEATHER OUTLOOK RESENT 1
NWS STORM PREDICTION CENTER NORMAN OK
0157 PM CDT MON SEP 14 2009
VALID 151200Z - 161200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
...RESENT PER REQUEST...
AN UPPER TROUGH WILL SLOWLY WEAKEN AND DRIFT ESEWD INTO SRN UT.
ALTHOUGH THUNDERSTORMS WILL AFFECT MUCH OF THE INTERMOUNTAIN
WEST...GREATER MOISTURE WILL STREAM NWD FROM THE FOUR CORNERS REGION
AHEAD OF THE LOW...WHILE MOISTURE WILL LINGER FROM PREVIOUS ACTIVITY
AS WELL. THUNDERSTORMS ARE PRIMARILY EXPECTED TO BE WET. UPPER
RIDGING WILL BRIEFLY BUILD BEHIND THIS...ALLOWING HOT AND DRY
CONDITIONS TO RETURN TO MUCH OF THE WRN COASTAL STATES...THOUGH WITH
SUBCRITICAL WINDS. MEANWHILE ANOTHER UPPER TROUGH WILL APPROACH THE
PACIFIC NORTHWESTERN COAST. STRONGER WINDS AND ANY LIGHTNING
ACTIVITY WITH THIS SYSTEM WILL REMAIN OFFSHORE.
..HURLBUT.. 09/14/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...