503
FNUS76 KPDT 050843
FWSPDT

Spot Forecast for THORP RD FIRE...YAKIMA CO FPD #5
National Weather Service Pendleton OR
143 AM PDT Fri Jul 5 2024

Forecast is based on forecast start time of 0200 PDT on July 05.
***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 TODAY TO 10 PM PDT
THURSDAY...

.DISCUSSION...High pressure will continue to build over the region
through the weekend. Winds aloft will increase later tonight, with
breezy winds 10 to 15 mph mixing down to the exposed ridges near
the fire, and winds to around 12 mph from the west to northwest
impacting the fire site. Dry and hot conditions will continue,
with RHs in the single digits to lower teens. Recoveries will
be poor overnight.

.REST OF TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....59-62.
Max humidity........42-47 percent.
Wind (20 ft)........Northwest winds 4 to 8 mph.
Ridgetop wind.......Northwest winds 8 to 13 mph.
Mixing height.......500 ft AGL overnight.
Transport winds.....North 7 to 11 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (PDT)      2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
Temp............66  63  61  60  60  65  70  75  84  88  91  94
RH..............41  43  43  44  43  38  32  26  22  19  17  16
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  W   W   W
20 FT wind spd..6   6   6   6   6   6   5   5   5   5   5   5
20 FT wind gust.8   8   8   7   7   7   6   6   6   6   6   6

.TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....100-103.
Min humidity........9-14 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph shifting to the
                    southwest 5 to 10 mph late in the morning,
then shifting to the west 7 to 12 mph late
in the afternoon.
Ridgetop wind.......North winds 5 to 10 mph shifting to the
west 8 to 13 mph in the afternoon.
Mixing height.......6900 ft AGL early in the morning.
Transport winds.....North 5 to 7 mph shifting to the northwest 6 to
                    10 mph late in the morning.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....62-65.
Max humidity........34-39 percent.
Wind (20 ft)........West winds 7 to 12 mph shifting to the
                    northwest 5 to 12 mph early in the evening.
Ridgetop wind.......West winds 8 to 13 mph shifting to the
northwest 10 to 15 mph late in the evening.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 10 to 14 mph.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....100-103.
Min humidity........8-13 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph shifting to the west
                    early in the afternoon, then shifting to the
                    east late in the afternoon.
Ridgetop wind.......Northwest winds 7 to 12 mph shifting to the
west 5 to 8 mph in the afternoon.
Mixing height.......8800 ft AGL.
Transport winds.....Northwest 7 to 10 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...JOEY WEEDIN
Type of request...WILDFIRE
.TAG 2417436.0/PDT
.DELDT 07/05/24
.FormatterVersion 2.0.0
.EMAIL dispatch@ycfd5.org