Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 040751
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0251 AM CDT MON SEP 04 2006
VALID 041200Z - 051200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
HIGHLY AMPLIFIED UPPER-LEVEL PATTERN WILL FEATURE A LARGE TROUGH
OVER THE MID-MS RIVER VALLEY...A RIDGE ACROSS THE NRN ROCKIES/HIGH
PLAINS...AND A WEAK TROUGH LIFTING NWD ACROSS THE PACIFIC NW. THE
LATTER OF WHICH WILL HELP MAINTAIN WEAK SLY FLOW IN THE
MID-LEVELS...BRINGING ADDITIONAL MOISTURE SLOWLY NWD ACROSS THE
ERN/NRN GREAT BASIN.
...NERN NV/NRN UT/FAR SRN ID...
WIDELY SCATTERED DRY TSTMS ARE EXPECTED LATE THIS AFTERNOON...MAINLY
IN HIGHER TERRAIN AREAS...AS SUFFICIENT MID-LEVEL MOISTURE LIES ATOP
A DRY LOW-LEVEL AIR MASS. AFTERNOON DEVELOPMENT WILL BE LARGELY TIED
TO DAYTIME HEATING/OROGRAPHIC LIFT. RELATIVELY WARM UPPER-LEVEL
TEMPERATURES AND WEAK FLOW/STORM MOVEMENT ARE EXPECTED TO LIMIT
INSTABILITY AND COVERAGE.
...ERN ORE/CNTRL ID/FAR SWRN MT/EXTREME SERN WA...
AN UPPER-LEVEL TROUGH FROM NERN CA NWWD TO SWRN WA WILL MOVE N/NE
TODAY. DIFFLUENT FLOW ALOFT AHEAD OF THIS FEATURE WILL CONTRIBUTE TO
LARGE-SCALE LIFT AND DRY TSTMS. ISOLATED TSTM ACTIVITY HAS BEEN
ONGOING EARLY THIS MORNING ACROSS PORTIONS OF THE UMATILLA RANGE IN
ORE. ALTHOUGH MID-LEVEL MOISTURE HAS INCREASED OVER THE PAST 24
HOURS PER OBSERVED SOUNDINGS...IT SHOULD REMAIN RELATIVELY MEAGER
COMPARED TO AREAS FURTHER S. THUS COVERAGE IS EXPECTED TO REMAIN
ISOLATED TO WIDELY SCATTERED...AND ACROSS HIGHER TERRAIN AREAS WHERE
OROGRAPHIC LIFT IS MAXIMIZED. GUSTY AND ERRATIC OUTFLOW WINDS WILL
ACCOMPANY THE TSTMS AND COULD AFFECT ONGOING LARGE FIRES IN THE
REGION.
..GRAMS.. 09/04/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 040902
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0402 AM CDT MON SEP 04 2006
VALID 051200Z - 061200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A LARGE UPPER-LEVEL TROUGH WILL AMPLIFY ACROSS THE MID-MS AND OH
RIVER VALLEYS. THE NRN ROCKIES UPPER RIDGE WILL RETROGRADE WWD...AS
AN IMPULSE ACROSS THE PACIFIC NW PIVOTS E/SEWD. CONSEQUENTLY...THE
CENTER OF THE RIDGE SHOULD BE ACROSS CA AND GREAT BASIN. GENERALLY
LIGHT SURFACE FLOW WILL CONTINUE ACROSS THE NWRN CONUS.
HOWEVER...RESIDUAL MID-LEVEL MOISTURE BENEATH THE RIDGE SHOULD LEAD
TO ISOLATED/WIDELY SCATTERED DRY TSTMS ACROSS MUCH OF THE ERN GREAT
BASIN/NRN ROCKIES.
...NERN NV/FAR ERN ORE/MUCH OF ID/NRN UT/SWRN MT/FAR WRN WY...
A DRY TSTM THREAT SHOULD CONTINUE FROM DAY 1...SHIFTING SLOWLY EWD
TO THE S OF A MID-LEVEL IMPULSE EXPECTED TO BE CROSSING THE MT
ROCKIES. MODEL FORECAST SOUNDINGS INDICATE DRY LOW-LEVEL CONDITIONS
WILL CONTINUE BENEATH MODEST MID-LEVEL MOISTURE...WITH TOTAL COLUMN
PRECIPITABLE WATER AROUND A HALF INCH OR LESS. WITH DAYTIME
HEATING...AN INVERTED-V TYPE THERMODYNAMIC STRUCTURE SHOULD
DEVELOP...ALLOWING GUSTY AND ERRATIC DOWNDRAFT WINDS TO ACCOMPANY
TSTMS. LIMITED INSTABILITY AND RELATIVELY WEAK FLOW SHOULD KEEP
COVERAGE FROM ISOLATED TO WIDELY SCATTERED AT BEST...MAINLY
AFFECTING HIGHER TERRAIN LOCALES.
..GRAMS.. 09/04/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...