803
FNUS76 KPDT 201308
FWSPDT

Spot Forecast for Gurard School Live fire...USFS
National Weather Service Pendleton OR
608 AM PDT Thu Jun 20 2024

Forecast is based on ignition time of 0700 PDT on June 20.
***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...A surface thermal trough will move over the region
becoming strongest on Saturday. The trough will bring very warm
and dry conditions across the area causing poor daytime RH
values with only moderate overnight recoveries. Winds will be
diurnally driven and mostly light and below 10 mph, so there are no
fire weather concerns for the next few days.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....83-86.
Min humidity........15-20 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 8 mph early
                    in the morning.
Ridgetop wind.......Light winds becoming northeast 6 to 9 mph early
                    in the morning.
Mixing height.......7300 ft AGL.
Transport winds.....Northeast 9 to 16 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Temp............60     67     75     81     83     82
RH..............42     34     28     22     20     19
20 ft wind......N 4    NE 5   NE 8   NE 8   NE 8   NE 6
20 ft wind gust.       10     12     12     12     10

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....59-62.
Max humidity........38-43 percent.
Wind (20 ft)........Northeast winds 5 to 7 mph shifting to the
                    northwest early in the evening, then becoming
                    light overnight.
Ridgetop wind.......Northeast winds 6 to 8 mph shifting to the
                    northwest early in the evening, then becoming
                    light overnight.
Mixing height.......900 ft AGL.
Transport winds.....North around 9 mph decreasing to 6 to 8 mph
                    late in the evening.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Mostly sunny (20-30 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 90.
Min humidity........15-20 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 8 mph late
                    in the afternoon.
Ridgetop wind.......Light winds becoming northeast 6 to 9 mph late
                    in the afternoon.
Mixing height.......7900 ft AGL.
Transport winds.....North around 6 mph shifting to the east 6 to 7
                    mph early in the morning, then shifting to the
                    north late in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Bennese
Requested by...Andrew Bellairs
Type of request...PRESCRIBED
.TAG 2416420.0/PDT
.DELDT 06/20/24
.FormatterVersion 2.0.0
.EMAIL Andrew.s.bellairs@usda.gov,richard.lancaster@usda.gov