Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 300704
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0204 AM CDT TUE SEP 30 2008
VALID 301200Z - 011200Z
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NRN NV...CNTRL AND ERN
OR...CNTRL AND WRN ID...FAR NWRN UT...
...SYNOPSIS...
A STRONG UPPER RIDGE WILL CONTINUE TO DOMINATE THE WESTERN
STATES...WITH WIDESPREAD HOT AND DRY WEATHER. TEMPERATURES WILL BE
NEAR 10 TO 15 DEGREES ABOVE CLIMATOLOGICAL NORMALS FOR MANY
LOCATIONS BENEATH THE STRONGER SUBSIDENCE AND DRIER AIR.
MEANWHILE...A SHORT WAVE TROUGH CONTINUES TO TRAVERSE NWWD ALONG THE
WRN PERIPHERY OF THE UPPER RIDGE. MID LEVEL MOISTURE INCREASE FROM
THE SOUTH IN COMBINATION WITH THE SHORT WAVE WILL SUPPORT DRY
THUNDERSTORM DEVELOPMENT...MAINLY ACROSS PORTIONS OF THE PACIFIC
NORTHWEST...AS LOW LEVELS REMAIN HOT AND DRY.
ELSEWHERE...A LARGE UPPER TROUGH WILL AMPLIFY OVER THE GREAT LAKES
AND OH VALLEY REGION...PUSHING A COOL AND DRY AREA OF HIGH PRESSURE
SWD OUT OF THE PLAINS AND INTO THE LOWER MS VALLEY/GULF COAST
REGION. ALTHOUGH RELATIVE HUMIDITIES ARE GENERALLY EXPECTED TO
REMAIN ABOVE CRITICAL THRESHOLDS...GUSTY NWLY WINDS WILL DEVELOP.
...CRITICAL FIRE WEATHER AREA - PORTIONS OF NRN NV...CNTRL AND ERN
OR...CNTRL AND WRN ID...FAR NWRN UT...
PRIMARY CONDITIONS: ISOLATED TO SCATTERED DRY THUNDERSTORMS...LOW RH
THE STRONG UPPER RIDGE IS BEGINNING TO SHIFT EWD...AND WILL
GRADUALLY BEGIN TO WEAKEN AHEAD OF THE NEXT AREA OF LOW
PRESSURE...SEEN CLEARLY ON SATELLITE IMAGERY THIS MORNING ROUGHLY
NEAR 35N AND 140W. AHEAD OF THIS AND ON THE WRN PERIPHERY OF THE
RIDGE...A SHORT WAVE TROUGH IS TRAVERSING NWD...WITH A VORT MAX NEAR
THE SRN NV/CA BORDER AND A SEPARATE MAX NEAR THE NRN CA/NWRN NV
BORDERS. MID LEVEL MOISTURE HAS GRADUALLY BEEN INCREASING FROM THE
S...EVIDENCED ON GOES PWAT...AND WILL CONTINUE TODAY IN DEEP SLY
FLOW.
WHILE FORECAST INSTABILITY WAS SOMEWHAT LIMITED IN DETERMINISTIC
MODEL FORECASTS YESTERDAY...THESE FORECASTS WERE NOT NECESSARILY
REPRESENTATIVE...AS QUITE A BIT OF LIGHTNING ACTIVITY WAS RECORDED.
A SIMILAR SCENARIO IS EXPECTED TODAY. THUNDERSTORMS WILL ONCE AGAIN
INITIATE IN ASSOCIATION WITH THE TWO VORT CENTERS...WITH THE BEST
JUXTAPOSITION OF GREATER MOISTURE/INSTABILITY POSSIBLE OVER THE
HIGHER TERRAIN OF N/CNTRL NV. THUNDERSTORMS WILL VARY IN COVERAGE
FROM ISOLD TO SCATTERED...ALTHOUGH GIVEN DRY CONDITIONS IN LOW
LEVELS AND HOT TEMPERATURES...NEAR 10 TO 15 DEGREES ABOVE
NORMAL...EXPECT LITTLE PRECIPITATION WITH THESE STORMS.
...LOWER MS/TN VALLEYS...GULF COAST STATES...
HIGH PRESSURE WILL BE DRIVEN IN BY THE STRONG UPPER TROUGH TO THE
N...AND WILL RESULT IN LOCALLY GUSTY WINDS AND LOW RH. SUSTAINED NW
WINDS NEAR 15 MPH WITH HIGHER GUSTS ARE EXPECTED OVER SERN MO/NERN
AR AND WRN KY/TN WHERE DROUGHT PERSISTS AND LITTLE RAINFALL HAS BEEN
RECEIVED RECENTLY. FARTHER SE...WEAKER WINDS NEAR 10 MPH WILL OCCUR
OVER THE GULF COAST STATES. ALTHOUGH MINIMUM RELATIVE HUMIDITIES MAY
ONLY BRIEFLY DROP INTO THE 30S...A MARGINAL CRITICAL THREAT WILL
EXIST IN THE DRIEST AREAS SUCH AS WRN KY/TN AND FAR SERN MO/NERN AR.
..HURLBUT.. 09/30/2008
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 300758
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0258 AM CDT TUE SEP 30 2008
VALID 011200Z - 021200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
THE UPPER RIDGE IN THE WEST WILL GRADUALLY SHIFT EWD AND WEAKEN AS
THE NEXT UPPER TROUGH BEGINS TO MOVE ONSHORE. STRONGER SLY WINDS
WILL OVERSPREAD COASTAL AREAS OF NRN CA/SWRN OR AHEAD OF A COLD
FRONT...WITH SUSTAINED SPEEDS NEAR 20 MPH AND GUSTS UP TO 30 MPH AT
LOWER ELEVATIONS. HOWEVER...AT THE MOMENT IT APPEARS RELATIVE
HUMIDITIES WILL BE SOMEWHAT MARGINAL...AND AREAL COVERAGE OF STRONG
WINDS IS NOT EXPECTED TO BE VERY WIDESPREAD.
FARTHER E...DRY NWLY FLOW WILL CONTINUE OVER THE SERN STATES WITH
HIGH PRESSURE BUILDING IN FROM THE NW AND WITH A STRONG UPPER TROUGH
JUST TO THE N. ALTHOUGH NWLY WINDS NEAR 10 TO 15 MPH WITH HIGHER
GUSTS WILL BE LIKELY...COOLER TEMPERATURES WILL KEEP MINIMUM
RELATIVE HUMIDITIES ABOVE CRITICAL THRESHOLDS.
..HURLBUT.. 09/30/2008
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...