197
FNUS76 KPDT 151253
FWSPDT

Spot Forecast for Rocky 79...USFS
National Weather Service Pendleton OR
553 AM PDT Sat Jun 15 2024

Forecast is based on ignition time of 0700 PDT on June 15.
***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...The atmosphere will be marginally unstable today with towering
cumulus and a possible cumulonimbus in the afternoon.  Although showers today
will mainly be west of the Rock Creek Reservoir, there is a chance that showers
will develop as far east as the burn site. Rainfall amounts, if any, will be less
than a tenth of an inch.  Breezy winds will continue through the day but diminish
tonight. Today will be cooler with higher humidity compared to yesterday.

Thank you for the observations!  Very helpful!

.REST OF TODAY...

Sky/weather.........Partly cloudy (30-40 percent). Chance (50%) of rain
                    showers. Slight chance (15%) of an afternoon thunderstorm.
CWR.................10 percent.
LAL.................1 until 1100, then 2.
Max temperature.....Around 60.
Min humidity........37 percent.
Wind (20 ft)........Southwest 10-15 mph gusting to 25 mph. Gusty and erratic
                    winds expected near thunderstorms.
Ridgetop wind.......West 12-18 mph gusting to 30 mph.
Mixing height.......rising to 5500 ft AGL.
Transport winds.....West around 25 mph.
Haines Index........2 (very low).


TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Temp............46     51     54     56     58     56
RH..............68     57     47     40     39     42
20 ft wind......SW 10  SW 10  WSW 12 W 14   W 13   W 11
20 ft wind gust.18     20     22     24     23     22
Chance of rain..30     30     40     50     50     30


.TONIGHT...

Sky/weather.........Becoming mostly clear (25 percent decreasing to 15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....39-42.
Max humidity........74-79 percent.
Wind (20 ft)........West 8-12 mph with gusts to around 22 mph decreasing to 4-8 mph
                    by early Sunday morning.
Ridgetop wind.......West 15-20 mph decreasing and shifting to Northwest 8-12 mph
                    after midnight.
Mixing height.......1500 ft AGL lowering to 900 ft AGL.
Transport winds.....West 20-25 mph decreasing to 7 mph after midnight.
Haines Index........3 (very low).



.SUNDAY...

Sky/weather.........Partly cloudy (30-40 percent). Slight chance (20%) of
                    rain showers late in the afternoon.
CWR.................2 percent.
LAL.................1.
Max temperature.....61-64.
Min humidity........31-36 percent.
Wind (20 ft)........West-Northwest around 5 mph becoming upslope (mainly east)
                    5-8 mph during the mid-morning.
Ridgetop wind.......Northwest 6-10 mph with gusts to around 16 mph.
Mixing height.......maximum 7000 ft AGL.
Transport winds.....Northwest around 8 mph.
Haines Index........3 (very low).



$$

Forecaster...Wister
Requested by...Andrew Bellairs
Type of request...PRESCRIBED
.TAG 2415667.6/PDT
.DELDT 06/15/24
.FormatterVersion 2.0.0
.EMAIL andrew.s.bellairs@usda.gov,richard.lancaster@usda.gov,erick.castanedaveyna@usda.gov,taylor.ristvedt@usda.gov