FNUS76 KPQR 110409
FWSPQR

SPOT FORECAST FOR SUBSTITUTE...USFS WNF
NATIONAL WEATHER SERVICE PORTLAND OR
909 PM PDT SAT SEP 10 2011

FORECAST IS BASED ON REQUEST TIME OF 2021 PDT ON SEPTEMBER 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT THROUGH SUNDAY NIGHT FOR DRY AND
UNSTABLE CONDITIONS...

.DISCUSSION...VERY WARM...DRY AND UNSTABLE HAINES 6 CONDITIONS
PERSIST ACROSS THE FIRE AREA EARLY THIS EVENING. HUMIDITY RECOVERY
TONIGHT IS EXPECTED TO BE POOR...ESPECIALLY ON THE MIDSLOPES AND
RIDGES. ANOTHER VERY WARM AND DRY DAY IS EXPECTED SUNDAY. THE
BROAD THERMAL TROUGH COVERING MUCH OF OREGON AND WASHINGTON WILL
SHIFT EAST ACROSS THE CASCADES SUNDAY AFTERNOON...LIKELY BRINGING
A PERIOD OF ENHANCED INSTABILITY FOLLOWED BY A SHIFT TO WEST WINDS
BY EVENING. THIS SHIFT TO ONSHORE FLOW WILL EVENTUALLY BRING
TEMPERATURES AND HUMIDITY BACK CLOSER TO NORMAL MONDAY AND
TUESDAY. ONSHORE FLOW WILL LIKELY CONTINUE THROUGH THE WEEK...
KEEPING TEMPERATURES NEAR TO ONLY SLIGHTLY ABOVE NORMAL FOR THE
FIRE AREA.

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....55-60.
MAX HUMIDITY........AROUND 35 PERCENT.
WIND (20 FT)........EAST TO NORTHEAST 4-7 MPH. GUSTS 10-15 MPH.


TIME (PDT)      8 PM   10 PM  MIDNGT 2 AM   4 AM
TEMP............65     60     58     57     57
RH..............33     35     35     35     35
20 FT WIND......NE 5   E 5    E 4    E 4    E-SE 3
   MAX GUST.....15     15     10     10     8


.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY. A FEW CUMULUS BUILDUPS...MAINLY
                    TO THE SOUTH AND EAST.
MAX TEMPERATURE.....80-84.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........EAST OR UPSLOPE 3-7 MPH THROUGH MIDDAY...THEN
                    BECOMING WEST TO SOUTHWEST 4-8 MPH WITH GUSTS
                    10-15 MPH AFTER 1600.


TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
TEMP............57     64     70     76     81     80
RH..............36     36     27     21     19     22
20 FT WIND......E-SE 3 SE 3   SE 4   SE 4   S-SE 4 SW 6
   MAX GUST.....7      7      10     10     12     15


.OUTLOOK FOR MONDAY AND TUESDAY...MOSTLY SUNNY AND SOMEWHAT COOLER.
HIGHS IN THE LOWER TO MID 70S. LOWS IN THE 40S AND LOWER 50S.
MINIMUM RH 25 TO 35 PERCENT EACH AFTERNOON. OVERNIGHT HUMIDITY
RECOVERY IMPROVING. WINDS MAINLY TERRAIN DRIVEN...EXCEPT WEST
WIND 5 TO 10 MPH EACH AFTERNOON.
.OUTLOOK FOR WEDNESDAY THROUGH FRIDAY...PARTLY CLOUDY. HIGHS IN
THE MID 60S TO LOWER 70S. LOWS IN THE 40S. MINIMUM RH EACH
AFTERNOON 30 TO 40 PERCENT. GOOD OVERNIGHT HUMIDITY RECOVERY.
WEST WIND 5 TO 15 MPH...AFTERNOON GUSTS AS HIGH AS 20-25 MPH
POSSIBLE...ESPECIALLY THURSDAY.


$$
FORECASTER...WEAGLE
REQUESTED BY...MEI LIN LANTZ
REASON FOR REQUEST...WILDFIRE
.TAG 20110910.SUBST.01/PQR