352
FNUS76 KOTX 091630
FWSOTX

Spot Forecast for Keller Ridge RX...Colville Agency
National Weather Service Spokane WA
930 AM PDT Thu May 9 2024

Forecast is based on ignition time of 1000 PDT on May 09.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Ridge of high pressure will build in over the Keller Ridge Rx
project into Saturday. This will promote warming temperatures and
drying conditions. Winds today will be from the east becoming
terrain driven on Friday. Good mixing with smoke transport to the
west and north through Friday. A dry cold front will move over the
project late Sunday. Expect southerly winds on Saturday then
southwesterly and westerly on Sunday with higher gusts near ridge
tops.

.TODAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Valley Bottom...76.
                    Ridge Top...73.
Min humidity........23-26 percent.
Wind (20 ft)........East-Southeast winds 5 to 8 mph.
Mixing height.......Increasing to 7000 ft AGL between 1400 and
                    1800 PDT.
Transport winds.....East 9 to 12 mph.
Haines Index........3 Very Low.

.TONIGHT...

Sky/weather.........Clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 51.
Max humidity........49 percent.
Wind (20 ft)........East winds 4 to 7 mph in the evening
                    becoming downslope/downvalley 2 to 4 mph
                    after 2000.
Mixing height.......5500 ft agl in the evening decreasing to
                    near surface after 2000 PDT.
Transport winds.....East around 7 mph in the evening becoming
                    north around 3 mph after 2100 PDT.
Haines Index........4 Low.

.FRIDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Valley Bottom...81.
                    Ridge Top...78.
Min humidity........21-23 percent.
Wind (20 ft)........Downslope/Downvalley winds 1 to 3 mph early
                    in the morning becoming southeast winds
                    around 4 to 7 mph after 0900 PDT.
Mixing height.......4500 ft AGL in the morning increasing to
                    7000 ft AGL in the afternoon.
Transport winds.....South-Southeast around 7 mph.
Haines Index........5 Moderate.

$$
Forecaster...SVH
Requested by...Lonnie Cawston
Type of request...PRESCRIBED
.TAG 2413353.2/OTX
.DELDT 05/09/24
.FormatterVersion 2.0.0
.EMAIL deborah.caudell@bia.gov