159
FNUS76 KPDT 041200
FWSPDT

Spot Forecast for Keys Rd...YKFD#4
National Weather Service Pendleton OR
500 AM PDT Thu Jul 4 2024

Forecast is based on forecast start time of 0500 PDT on July 04.
***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.

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 10 PM PDT
THURSDAY...

.DISCUSSION...High pressure building over the region will lead
to a prolonged period of hot and dry conditions developing by
tomorrow. Winds will generally be less than 10mph with wind
direction diurnally driven each day. Afternoon RHs are
expected to dip into the lower teens by tomorrow afternoon,
with poor overnight recoveries.


.REST OF TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....56-59.
Max humidity........42-47 percent.
Wind (20 ft)........Northwest winds 4 to 6 mph.
Mixing height.......900 ft AGL.
Transport winds.....North around 8 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (PDT)      5 AM   7 AM   9 AM   11 AM  1 PM   3 PM
Temp............57     62     74     82     87     91
RH..............45     39     29     23     20     17
20 ft wind......NW 6   N 6    NW 4   SW 5   SW 5   S 5
20 ft wind gust.8      8      6      6      6      8

.TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....93-96.
Min humidity........11-16 percent.
Wind (20 ft)........North winds 5 to 7 mph early in the morning
                    becoming light, then becoming southwest 5 to 7
                    mph late in the morning.
Mixing height.......7300 ft AGL.
Transport winds.....North around 8 mph shifting to the southeast
                    around 5 mph early in the morning, then
                    becoming light late in the morning becoming
                    west around 5 mph late in the afternoon
                    shifting to the southwest.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....61-64.
Max humidity........40-45 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph shifting to the
                    north 5 to 8 mph early in the evening.
Mixing height.......900 ft AGL.
Transport winds.....Southwest around 5 mph shifting to the north 6
                    to 9 mph early in the evening, then shifting to
                    the southwest around 9 mph overnight shifting
                    to the north around 8 mph early in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....100-103.
Min humidity........9-14 percent.
Wind (20 ft)........North winds 4 to 7 mph early in the morning
                    turning to the south late in the morning shifting
to the west 6 to 11 mph late in the afternoon.
Mixing height.......7900 ft AGL.
Transport winds.....North 7 to 8 mph in the morning becoming light,
                    then becoming west 7 to 9 mph late in the
                    afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...D.J. Goldsmith
Type of request...WILDFIRE
.TAG 2417384.0/PDT
.DELDT 07/04/24
.FormatterVersion 2.0.0
.EMAIL dj.goldsmith@yakimawa.gov