883
FNUS76 KPDT 211123
FWSPDT

Spot Forecast for Tiddly Winks RX 8, 9...USFS
National Weather Service Pendleton OR
423 AM PDT Tue May 21 2024

Forecast is based on ignition time of 0800 PDT on May 21.
***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 weak frontal boundary moving through the area
today will increase light rain chances by the late afternoon,
while winds between 5 to 10 mph will turn from southwest
to the northwest early in the afternoon, then turn west by
the evening hours. A stronger upper low moving in over night
will continue rain chances into the morning hours Wednesday,
while winds west winds overnight will increase to 10 to 15 mph
in the morning. Afternoon RHs will improve slightly today, with
excellent overnight recovery tonight.

.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    cloudy (85-95 percent). Slight chance of rain
                    showers late in the afternoon. Chance of rain
                    showers late in the afternoon.
CWR.................0 percent increasing to 18 percent late in the
                    afternoon.
LAL.................1.
Max temperature.....63-66.
Min humidity........27-32 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph shifting to the
                    northwest 5 to 8 mph late in the afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....West 6 to 13 mph increasing to around 20 mph
                    late in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Temp............39     51     59     62     61     56
RH..............64     42     33     30     40     52
20 ft wind......SW 6   SW 6   SW 6   NW 8   NW 8   W 8
20 ft wind gust.                     10     10     10

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain
                    showers early in the evening, then rain showers
                    likely early in the evening. Chance of rain
                    showers late in the evening.
CWR.................18 percent decreasing to 3 percent early in the
                    morning.
LAL.................1.
Min temperature.....Around 40.
Max humidity........88-93 percent.
Wind (20 ft)........West winds 5 to 10 mph.
Mixing height.......1400 ft AGL.
Transport winds.....West 16 to 20 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WEDNESDAY...

Sky/weather.........Mostly sunny (35-45 percent). Chance of rain
                    showers in the morning, then slight chance of
                    rain showers late in the morning.
CWR.................3 percent.
LAL.................1.
Max temperature.....50-53.
Min humidity........37-42 percent.
Wind (20 ft)........West winds 5 to 9 mph increasing becoming
10 to 14 mph late in the morning.
Mixing height.......5700 ft AGL.
Transport winds.....West 17 to 26 mph increasing to 24 to 29 mph
                    late in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...Jessie Creech
Type of request...PRESCRIBED
.TAG 2414578.1/PDT
.DELDT 05/21/24
.FormatterVersion 2.0.0
.EMAIL jessie.creech@usda.gov