043
FNUS76 KPDT 131848
FWSPDT

Spot Forecast for MET-WUI 17...USFS
National Weather Service Pendleton OR
1148 AM PDT Mon May 13 2024

Forecast is based on ignition time of 0900 PDT on May 14.
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...An upper level ridge offshore and high pressure at
the fire area will lead to sunny skies, warming temperatures, and
dry conditions Tuesday and Wednesday. High temperatures will
increase 3 to 5 degrees each day as afternoon values reach into
the mid-80s on Wednesday. Excellent overnight recoveries tonight
and Tuesday night into Wednesday, but will drop around 12% (88%
to 76%) through the period. Afternoon humidities will stay
consistent and around 22% each day. Winds will incur a diurnal
pattern and predominately from the northwest, with light and
variable winds overnight.


.TUESDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....79-82.
Min humidity........19-24 percent.
Wind (20 ft)........Light winds becoming northwest 4 to 8 mph late in
                    the afternoon.
Ridgetop wind.......Light winds becoming northwest 5 to 10 late in
                    the afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....Light winds becoming northeast 8 to 9 mph late
                    in the morning.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (PDT)      9 AM   11 AM  1 PM   3 PM   5 PM   7 PM
Temp............53     67     75     79     78     69
RH..............51     32     25     24     26     37
20 ft wind......N 3    N 4    N 4    N 6    N 7    N 7
20 ft wind gust.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....42-45.
Max humidity........71-76 percent.
Wind (20 ft)........Northwest winds 4 to 8 mph shifting to the
                    west 3 to 6 mph late in the evening.
Ridgetop wind.......Northwest winds 5 to 10 shifting to the
                    west 4 to 8 mph late in the evening.
Mixing height.......1200 ft AGL in the evening.
Transport winds.....North 8 to 9 mph shifting to the west 6 to 7
                    mph late in the evening.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.WEDNESDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....83-86.
Min humidity........20-25 percent.
Wind (20 ft)........Light winds becoming northwest 4 to 8 mph late
                    in the afternoon.
Ridgetop wind.......Light winds becoming northwest 5 to 10 mph late
                    in the afternoon.
Mixing height.......6300 ft AGL early in the morning.
Transport winds.....West around 6 mph early in the morning becoming
                    light, then becoming north 8 to 9 mph late in
                    the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Callihan
Requested by...Jyota Smith-Howard
Type of request...PRESCRIBED
.TAG 2413728.0/PDT
.DELDT 05/13/24
.FormatterVersion 2.0.0
.EMAIL jyota.smithhoward@usda.gov