Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 070947
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0347 AM CST TUE NOV 07 2006
VALID 071200Z - 081200Z
...CRITICAL FIRE WEATHER AREA FOR MTNS/CANYONS OF SRN CA THROUGH THE
MORNING...
...SYNOPSIS...
THE UPPER RIDGE WILL BREAKDOWN OVER THE WEST TODAY IN ADVANCE OF AN
UPPER TROUGH THAT MOVE EWD FROM THE ERN PACIFIC INTO THE PAC NW/NRN
ROCKIES. AHEAD OF THIS UPPER TROUGH...SFC HIGH PRESSURE OVER THE
GREAT BASIN AND OFFSHORE GRADIENTS OVER SRN CA WILL WEAKEN THROUGH
THE PERIOD. HOWEVER...VERY WARM TEMPERATURES WILL REMAIN OVER MUCH
OF THE SOUTHWEST AND SRN CA. MODERATE WINDS AND VERY LOW RH READINGS
WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS THIS MORNING OVER THE
HIGHER TERRAIN OF SRN CA. WITH THE CESSATION OF THE OFFSHORE
GRADIENT...WINDS WILL SHIFT TO WLY TONIGHT LEADING TO HIGHER RH
READINGS. ELSEWHERE ACROSS THE NATION...WELL ABOVE NORMAL
TEMPERATURES WILL AGAIN OCCUR OVER THE NRN/CENTRAL PLAINS WHILE
DEVELOPING SWD INTO THE SRN PLAINS. THE BREAKDOWN OF THE UPPER RIDGE
OVER THE ROCKIES AND INCREASING WLY FLOW WILL SUPPORT INCREASING
SWLY SFC WINDS OVER THE CENTRAL/NRN HIGH PLAINS. HOWEVER MIN RH
READINGS IN THIS REGION WILL REMAIN HIGH ENOUGH /ABOVE 25 PERCENT/
TO PRECLUDE CRITICAL FIRE WEATHER CONDITIONS.
...CRITICAL FIRE WEATHER AREA - MTNS/CANYONS OF SRN CA THROUGH THE
MORNING...
PRIMARY CONDITIONS: SUSTAINED WINDS FROM 20-25 MPH WITH GUSTS UP TO
40 MPH...RH READINGS AROUND 15 PERCENT
EARLY MORNING RAWS/MESOWEST DATA SHOWS SURPRISINGLY STRONG WIND
GUSTS /40 MPH/ GIVEN RELATIVELY MODEST OFFSHORE PRESSURE GRADIENT /6
MB/. RECENT RADAR VAD WIND PROFILE DATA MAY INDICATE THE REASON FOR
THESE MODERATE WINDS. A 20-25 KT NELY WIND MAX BETWEEN 1-2 KM
EXISTED OVER THE HIGH DESERTS/SRN NV ON THE SERN PERIPHERY OF THE
850 MB RIDGE CENTERED OVER CENTRAL NV. THESE MODERATE LOW LEVEL
WINDS WERE ALSO EVIDENT PER CHAFF ECHO RETURNS OVER THE MOJAVE
DESERT. COMBINED WITH DIURNAL EFFECTS...MODERATE SFC WIND FIELDS
OVER THE HIGHER TERRAIN OF SRN CA SHOULD REMAIN IN PLACE /OR LOCALLY
STRENGTHEN/ THROUGH THE REST OF THE EARLY MORNING HRS. SINCE WINDS
SHOULD REMAIN MODERATE THROUGH THE REMAINDER OF THE MORNING HRS AND
RH READINGS WILL AGAIN BE VERY LOW...A CRITICAL OUTLOOK IS BEING
ISSUED. WINDS SHOULD DIMINISH TO LESS THAN 20 MPH BY EARLY-MID
AFTERNOON...LEADING TO AN END OF CRITICAL CONDITIONS. HOWEVER MIN RH
READINGS WILL AGAIN BE LOW /6-10 PERCENT/ IN INLAND LOCATIONS ALL
AFTERNOON.
..CROSBIE.. 11/07/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 070948
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0348 AM CST TUE NOV 07 2006
VALID 081200Z - 091200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
THE UPPER RIDGE OVER THE SW WILL SHIFT EWD INTO THE SRN PLAINS
TOMORROW AS ANOTHER UPPER TROUGH MOVES INTO THE WEST COAST. ONSHORE
FLOW WILL STRENGTHEN OVER SRN CA AS A RESULT OF THIS APPROACHING
UPPER SYSTEM. THE RESULT WILL BE A MARKED INCREASE IN RH READINGS
AND COOLING OF TEMPERATURES IN INTERIOR VALLEYS/MTNS OF SRN CA. SWLY
WINDS WILL INCREASE OVER PORTIONS OF THE HIGH DESERT AND LOWER
COLORADO RIVER VALLEY AHEAD OF THIS SYSTEM AND IT/S ASSOCIATED COLD
FRONT. ELSEWHERE...THE LEAD UPPER SYSTEM WILL MOVE EWD ALONG
CANADIAN BORDER. THIS SYSTEM WILL SUPPORT A SWD MOVING COLD FRONT
THROUGH THE NRN PLAINS ACCOMPANIED BY MODERATE NWLY WINDS. VERY WARM
TEMPERATURES WILL BE PRESENT SOUTH OF THIS FRONT OVER THE
SRN/CENTRAL PLAINS WITH NEAR RECORD HIGH TEMPERATURES POSSIBLE.
ALTHOUGH SWLY WINDS ARE FCST TO INCREASE OVER THE SRN HIGH
PLAINS...THEY SHOULD REMAIN BELOW CRITICAL LEVELS.
...NRN PLAINS...
IN THE WAKE OF A COLD FRONT...NWLY WINDS WILL AVERAGE 20-25 MPH WITH
GUSTS OVER 35 MPH. MUCH COOLER TEMPERATURES ARE EXPECTED TO
INITIALLY LAG THE FRONT...WITH READINGS IN THE 60S/LOWER 70S IN SD
AND PORTIONS OF NRN NEB. HOWEVER DWPTS ARE NOT EXPECTED TO BE VERY
LOW /35-40 DEG F/. THUS MIN RH READINGS SHOULD REMAIN HIGH ENOUGH
/ABOVE 25 PERCENT/ TO PRECLUDE A CRITICAL FIRE WEATHER THREAT.
...LOWER CO RIVER VALLEY...
AHEAD OF THE UPPER TROUGH AND COLD FRONT MOVING THROUGH CENTRAL/NRN
CA...SSWLY WINDS WILL INCREASE OVER THE AREA DURING THE AFTERNOON.
ABOVE NORMAL TEMPERATURES IN THE LOWER 90S AND RH READINGS AROUND 15
PERCENT CAN BE EXPECTED. THE STRONGEST MID LEVEL WIND FIELDS SHOULD
BE LOCATED POST FRONTAL AND ALONG WITH A MARGINAL PRESSURE
GRADIENT...LIMIT SUSTAINED SFC WINDS TO LESS THAN 20 MPH.
...SRN HIGH PLAINS...
SWLY WINDS WILL AVERAGE FROM 10-15 MPH WITH GUSTS UP TO 20 MPH /IN
THE GUADALUPE MTNS/ DURING THE AFTERNOON AS THE PRESSURE GRADIENT
WILL REMAIN RELATIVELY WEAK. UPPER RIDGING AND DOWNSLOPE COMPONENT
TO THE LOW LEVELS WILL SUPPORT VERY WARM TEMPERATURES IN THE 80S.
..CROSBIE.. 11/07/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...