351
FNUS76 KPDT 060159
FWSPDT

Spot Forecast for Rocky 79...USFS
National Weather Service Pendleton OR
659 PM PDT Wed Jun 5 2024

Forecast is based on ignition time of 0600 PDT on June 07.
***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...Dry and warm conditions are expected through Saturday.
Winds will be relatively light Friday and Friday night, with some
gusts possible Saturday afternoon.  MIN RH values will be around 20
to 25 percent on Friday and 25 to 30 percent on Saturday, with moderate
overnight recovery.

.FRIDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....86-89.
Min humidity........21-26 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph late
                    in the afternoon.
Ridgetop wind.......Light north to northwest becoming northeast
                    around 10 mph in the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....Northwest around 5 mph shifting to the
                    northeast 5 to 9 mph early in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Temp............58     64     73     80     84     86
RH..............61     53     42     34     30     27
20 ft wind......W 4    NE 3   NE 3   E 4    NE 6   NE 6
20 ft wind gust.                     5      7      7

.FRIDAY NIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....62-65.
Max humidity........49-54 percent.
Wind (20 ft)........Northeast winds 5 to 7 mph early in the evening
                    becoming light.
Ridgetop wind.......Northeast winds becoming north 5 to 10 then becoming
                    light overnight.
Mixing height.......900 ft AGL.
Transport winds.....Northeast 5 to 10 mph shifting to the northwest
                    5 to 10 mph late in the evening.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.SATURDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....85-88.
Min humidity........27-32 percent.
Wind (20 ft)........Light winds becoming north 5 to 10 mph late in
                    the morning, then shifting to the northwest 5
                    to 10 mph with gusts to around 15 to 20 mph late in
                    the afternoon.
Ridgetop wind.......Light winds becoming west 10 to 15 with gusts as high
                    as 20 mph.
Mixing height.......5800 ft AGL.
Transport winds.....West 5 to 7 mph shifting to the northwest 5 to
                    12 mph late in the morning.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

$$
Forecaster...Nierenberg
Requested by...Andrew Bellairs
Type of request...PRESCRIBED
.TAG 2415667.0/PDT
.DELDT 06/06/24
.FormatterVersion 2.0.0
.EMAIL andrew.s.bellairs@usda.gov,richard.lancaster@usda.gov