Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 312150
DAY 1 FIRE WEATHER OUTLOOK RESENT 3
NWS STORM PREDICTION CENTER NORMAN OK
0450 PM CDT TUE JUL 31 2007
VALID 311200Z - 011200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A MID/UPPER-LEVEL SHORT WAVE TROUGH WILL TRANSLATE EWD FROM BRITISH
COLUMBIA/ALBERTA ONTO THE PRAIRIE PROVINCES. ASSOCIATED HEIGHT FALLS
WILL FLATTEN THE LARGE-SCALE RIDGE OVER THE NRN PLAINS/UPPER
MIDWEST. BELT OF STRONG MID-LEVEL FLOW WILL GRAZE THE EXTREME NRN
ROCKIES/HIGH PLAINS...PRIMARILY HOLDING N OF THE CONUS BORDER. AT
THE SURFACE...A COLD FRONT WILL PUSH SEWD FROM THE FAR NRN ROCKIES
THROUGH THE NRN PLAINS BY EARLY WED.
...PORTIONS OF NRN MT E OF THE CONTINENTAL DIVIDE...
MODERATE NWLY SURFACE WINDS AND MARGINALLY LOW RH MAY LEAD TO
BRIEF/LOCALIZED CRITICAL CONDITIONS THIS AFTERNOON. ON THE FRINGE OF
STRONG MID-LEVEL FLOW...DAYTIME MIXING SHOULD BE SUFFICIENT FOR
SUSTAINED NWLY SURFACE WINDS APPROACHING 20 MPH AFTER A COLD FRONT
MOVES E OF THE AREA BY THIS AFTERNOON. THIS NWLY FLOW WILL ADVECT
SOMEWHAT COOLER TEMPERATURES AND A MORE MOIST UPSTREAM AIR MASS.
THUS...RH VALUES SHOULD LARGELY BE MARGINAL DURING THE AFTERNOON
/AROUND 20 PERCENT/. ONE EXCEPTION MAY BE ALONG THE LEE OF THE
ROCKIES WHERE DOWNSLOPE EFFECTS SHOULD MAINTAIN SLIGHTLY DRIER
CONDITIONS. SUBSTANTIAL RH RECOVERY IS EXPECTED DURING THE
EVENING/OVERNIGHT AS A SECONDARY FRONTAL SURGE SHIFTS WINDS TO THE
N.
...CNTRL NV...
RELATIVELY NARROW NORTH-TO-SOUTH CORRIDOR OF DRY TSTM POTENTIAL
SHOULD REMAIN ALONG THE PERIPHERY OF RICHER MONSOON MOISTURE MOVING
VERY SLOWLY NWWD FROM THE SWRN CONUS. WEAK LARGE-SCALE ASCENT WILL
MITIGATE CONVECTIVE COVERAGE TO ISOLATED OR WIDELY SCATTERED AT
BEST.
..GRAMS.. 07/31/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 312218
DAY 2 FIRE WEATHER OUTLOOK RESENT 3
NWS STORM PREDICTION CENTER NORMAN OK
0518 PM CDT TUE JUL 31 2007
VALID 011200Z - 021200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
AN UPPER-LEVEL TROUGH WILL TRACK EWD FROM THE CANADIAN PRAIRIE
PROVINCES INTO ONTARIO BY EARLY THU. UPSTREAM RIDGING WILL GRADUALLY
BUILD ACROSS THE WRN CONUS. THIS WILL RESULT IN A SLOW EXPANSION OF
ROBUST MONSOONAL MOISTURE NWWD ACROSS THE GREAT BASIN TOWARDS THE
NRN SIERRAS.
...NWRN NV/FAR NERN CA...
MODERATE MID-LEVEL MOISTURE WILL LEISURELY WORK ITS WAY NWWD AS
RIDGING STEADILY BUILDS NWD ACROSS THE GREAT BASIN/PACIFIC NW. A
PRECEDING HOT/DRY AIR MASS IN THE LOW-LEVELS WILL AID IN
DRY/HIGH-BASED TSTM POTENTIAL. MODEL FORECAST SOUNDINGS CONFIRM THIS
WITH DEEPLY-MIXED INVERTED-V TYPE THERMODYNAMIC PROFILES WED
AFTERNOON. GIVEN THE LACK OF SIGNIFICANT LARGE-SCALE
ASCENT...OVERALL DRY TSTM COVERAGE SHOULD REMAIN LIMITED.
..GRAMS.. 07/31/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...