Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 210901
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0401 AM CDT SAT JUN 21 2008
VALID 211200Z - 221200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
THE UPPER PATTERN ACROSS THE COUNTRY WILL REMAIN DOMINATED BY A
LARGE RIDGE CENTERED OVER THE SWRN STATES...AND AN UPPER LOW
CENTERED OVER HUDSON/S BAY CANADA. BROAD NW FLOW AT MID LEVELS WILL
RESIDE BETWEEN THESE TWO FEATURES SUPPORTING SCT TSTMS OVER MUCH OF
THE HIGH PLAINS REGION AND ADJACENT ROCKY FRONT RANGE. ON THE WRN
EDGE OF THIS TSTM POTENTIAL...ISOLATED DRY TSTMS WILL BE POSSIBLE
OVER PORTIONS OF FAR WRN NM/SERN AZ. MEANWHILE...A SEPARATE
SHORTWAVE TROUGH WILL MOVE ACROSS THE PAC NW/NRN ROCKIES AIDING IN A
SLIGHT BREAKDOWN OF THE UPPER RIDGE OVER THE NRN ROCKIES/NRN GREAT
BASIN. AHEAD OF THIS TROUGH...SCT TSTMS WILL OCCUR WITH SOME BEING
DRY.
...ERN ORE/ERN WA..WRN ID...NRN NV...NRN CA AND FAR WRN MT...
AHEAD OF A SEASONABLY STRONG SHORTWAVE TROUGH...MID LEVEL MOISTURE
AND INSTABILITY HAVE PRODUCED ISOLATED TO SCT TSTMS OVER NWRN
CA/SWRN ORE EARLY THIS MORNING. SOME OF THESE TSTMS ARE EXPECTED TO
REMAIN DRY POSING A THREAT FOR LIGHTNING GENERATED FIRE STARTS.
LATER TODAY...THIS SHORTWAVE WILL MOVE INTO THE INTERIOR PAC NW AND
NRN GREAT BASIN. AS THIS OCCURS...SCT TSTMS ARE EXPECTED TO
INCREASE IN COVERAGE DUE TO DAYTIME HEATING/OROGRAPHIC INFLUENCES.
FORECAST SOUNDINGS INDICATE THE POTENTIAL FOR DRY TSTMS INITIALLY.
HOWEVER...STRENGTH OF THE FORCING SHOULD SUPPORT MOISTENING MID
LEVELS...INCREASING PWAT VALUES AND A TRANSITION TO WET TSTMS DURING
THE LATE AFTERNOON/EARLY EVENING. GIVEN THIS EXPECTED SCENARIO...A
CRITICAL FIRE WEATHER OUTLOOK AREA IS NOT WARRANTED.
...FAR SERN AZ/WRN NM...
ALONG THE WRN EDGE OF THE LOW-MID LEVEL MOISTURE /RESULTING FROM
OVERNIGHT CONVECTION OVER ERN NM/...ISOLATED TO WIDELY SCT TSTMS ARE
EXPECTED TO DEVELOP OVER THE HIGHER TERRAIN OVER FAR SERN AZ...WRN
NM. ON THE WRN EDGE OF THIS MOISTURE...DRY/HOT BOUNDARY LAYER
/TEMPERATURES AOA 100 DEG F AND DEWPTS AOB 30 DEG F/ WILL FAVOR HIGH
CLOUD BASES /ABOVE 12 KFT AGL/. COMBINED WITH SUFFICIENT
INSTABILITY...THERE EXISTS SOME POTENTIAL FOR DRY TSTMS.
...CA/SRN NV...
VERY HOT TEMPERATURES WILL AGAIN BE PREVALENT OVER THE REGION TODAY.
WITH THE PASSAGE OF THE UPPER TROUGH ACROSS THE PAC NW...ONSHORE
FLOW WILL STRENGTHEN OVER NRN CA SUPPORTING A 5-10 DEG COOL DOWN
OVER COASTAL VALLEYS. HOWEVER...INLAND AREAS WILL CONTINUE TO SEE
NEAR RECORD HIGH TEMPERATURES AND LOW RH READINGS FROM 5-10
PERCENT...WITH POOR RH RECOVERY OVERNIGHT IN HIGHER ELEVATIONS.
FURTHER SOUTH...LITTLE TO NO ONSHORE FLOW WILL BE PRESENT OVER SRN
CA...SUSTAINING HOT TEMPERATURES/LOW RH READINGS IN COASTAL VALLEYS
AND CONSEQUENT VERY HIGH FIRE DANGER. ALTHOUGH MODERATE WLY WINDS
WILL BE POSSIBLE NEAR THE SEA BREEZE FRONT OVER THE COASTAL VALLEYS
OF NRN CA...IMPROVING RH READINGS WITH THE PASSAGE OF THIS BOUNDARY
WILL PRECLUDE ANY CRITICAL FIRE WEATHER THREAT.
..CROSBIE.. 06/21/2008
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 210904
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0404 AM CDT SAT JUN 21 2008
VALID 221200Z - 231200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
AN UPPER TROUGH WILL MOVE ACROSS THE NRN ROCKIES/NRN GREAT BASIN
TOMORROW. THIS WILL RESULT IN A CONTINUED BREAKDOWN OF THE UPPER
RIDGE OVER THESE AREAS TOMORROW. ISOLATED/SCT DRY TSTMS WILL BE
POSSIBLE OVER PORTIONS OF THE NRN GREAT BASIN AS A RESULT OF
INCREASED LIFT AND MODERATE INSTABILITY OVER THIS REGION. ADDITIONAL
ISOLATED DRY TSTMS WILL BE POSSIBLE OVER FAR ERN AZ/WRN NM ON THE
WRN EDGE OF LOW-MID LEVEL MOISTURE. LOCALIZED GUSTY WINDS WILL BE
FOUND OVER PORTIONS OF THE MOJAVE DESERT AS MID LEVEL FLOW
STRENGTHENS AND THE PRESSURE GRADIENT INCREASES OFF THE CENTRAL CA
COAST. INCREASING ONSHORE FLOW WILL SUPPORT A COOL DOWN OVER THE
COASTAL VALLEYS OF SRN CA...BUT INTERIOR VALLEYS/MTNS OF CA WILL SEE
TEMPERATURES REMAIN WELL ABOVE NORMAL ALONG WITH LOW RH READINGS
LESS THAN 10 PERCENT.
...NRN GREAT BASIN...
ISOLATED DRY TSTMS WILL BE POSSIBLE TOMORROW ON THE SRN EDGE OF A
SEASONABLY STRONG UPPER TROUGH. DEEPLY MIXED/DRY BOUNDARY LAYER WILL
SUPPORT HIGH CLOUD BASES ABOVE 12 KFT AGL. HOWEVER...WITH A
RELATIVELY ISOLATED COVERAGE OF TSTMS EXPECTED /GIVEN WEAKER FORCING
OVER THE REGION/ A CRITICAL FIRE WEATHER THREAT IS NOT ANTICIPATED.
FURTHER NORTH...GREATER MID LEVEL FORCING WILL LIKELY SUPPORT SCT
MAINLY WET TSTMS OVER THE NRN ROCKIES.
...SERN AZ/WRN NM...
SIMILAR TO TODAY...WRN PROPAGATION OF THE LOW-MID LVL MOISTURE
/SUPPORTED BY CONVECTIVE OUTFLOW ON DAY 1/ SHOULD SUPPORT ANOTHER
DAY OF TSTMS OVER THE HIGHER TERRAIN. ERN EDGE OF THE HOT/DRY
BOUNDARY LAYER WILL COEXIST WITH SOME OF THIS MOISTURE TO SUPPORT
HIGH BASED MAINLY DRY TSTMS OVER THIS REGION. HOWEVER...LIMITED
AREAL COVERAGE OF TSTMS WILL PRECLUDE A CRITICAL FIRE WEATHER
THREAT.
...SERN CA...
INCREASING HIGH PRESSURE OFF THE CENTRAL CA COAST /SUPPORTING
INCREASING ONSHORE FLOW/ WILL SUPPORT MODERATE SWLY WINDS OVER THE
HIGH DESERT OF SERN CA. HOWEVER THE DURATION OF STRONGEST WINDS /AOA
20 MPH/ WILL LIKELY BE LIMITED TO LESS THAN 4 HRS DURING THE
MID-LATE AFTERNOON. THUS A CRITICAL FIRE WEATHER THREAT IS NOT
EXPECTED.
..CROSBIE.. 06/21/2008
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...