970
FNUS76 KPQR 302231
FWSPQR

Spot Forecast for Lacamas Prairie RX...WA DNR
National Weather Service Portland OR
331 PM PDT Wed Sep 30 2026

Forecast is based on ignition time of 1200 PDT on October 01.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...High pressure will maintain warm and dry conditions
through Friday. Onshore flow will support afternoon RHs above
40% with light northwesterly winds. Expect excellent overnight
humidity recoveries. There is a 30-50% chance for maximum wind
gusts to 15-20 mph Thursday and Friday afternoon, but a less than
5% chance wind gusts exceed 20 mph.

.THURSDAY...

Sky/weather.........Partly cloudy.
CWR.................1 percent.
Max temperature.....Around 78.
Min humidity........46 percent.
Wind (20 ft)........
 Slope/valley.......Northwest 3 to 5 mph.
Mixing height.......2600 ft AGL.
Transport winds.....Northwest 5 to 9 mph.

TIME (PDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31  21  18  36  36  62
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0
Temp............69  72  76  77  77  78
RH..............58  51  46  44  45  46
20 FT wind dir..NW  NW  NW  NW  NW  NW
20 FT wind spd..3   4   5   5   5   5
20 FT wind gust.5   6   7   7   8   10
Mix hgt (kft)...1.7 2.2 2.5 2.6 2.3 2.0
Transp wind dir.NW  N   NW  NW  NW  N
Transp wind spd.5   6   6   7   8   9

.THURSDAY NIGHT...

Sky/weather.........Mostly cloudy.
CWR.................0 percent.
Min temperature.....Around 53.
Max humidity........90 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds around 5 mph early in the
                    evening becoming northeast under 3 mph
                    overnight.
Mixing height.......300 ft AGL.
Transport winds.....North 3 to 8 mph shifting to the northeast 3 to
                    5 mph after 3 am.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........62  62  65  65  65  28  28  28  41  41  41  64
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............75  72  68  63  61  60  58  57  56  55  54  54
RH..............50  56  65  69  73  76  77  79  80  83  84  85
20 FT wind dir..NW  NW  N   N   N   N   N   N   NE  NE  NE  NE
20 FT wind spd..5   5   2   2   2   1   1   1   1   1   1   1
20 FT wind gust.10  10  5   5   5   2   2   2   2   2   2   2
Mix hgt (kft)...1.0 0.6 0.4 0.4 0.4 0.3 0.4 0.4 0.3 0.4 0.3 0.3
Transp wind dir.NW  N   N   N   N   N   N   N   N   NE  N   NE
Transp wind spd.8   8   7   7   6   5   5   3   3   5   3   3

.FRIDAY...

Sky/weather.........Mostly cloudy in the morning becoming
                    partly cloudy in the afternoon.
CWR.................0 percent.
Max temperature.....Around 78.
Min humidity........50 percent.
Wind (20 ft)........
 Slope/valley.......Northeast under 3 mph becoming northwest
                    4 to 5 mph late in the morning.
Mixing height.......2500 ft AGL.
Transport winds.....Northeast 2 to 3 mph shifting to the northwest
                    3 to 8 mph late in the morning.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........64  64  59  59  59  47  47  47  32  32  32  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............53  53  53  56  61  66  70  73  76  77  78  77
RH..............86  89  90  85  76  67  60  55  51  48  48  50
20 FT wind dir..NE  NE  NE  NE  NE  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..1   1   2   2   2   2   2   2   4   4   4   5
20 FT wind gust.2   2               4   4   4   6   6   6   8
Mix hgt (kft)...0.3 0.3 0.3 0.3 0.3 1.3 1.3 1.3 2.3 2.3 2.3 2.5
Transp wind dir.NE  NE  NE  NE  NE  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.3   3   2   2   2   3   3   3   6   6   6   8

$$
Forecaster...Alviz
Requested by...Emily Richardson
Type of request...PRESCRIBED
.TAG 2622867.0/PQR
.DELDT 09/30/26
.FormatterVersion 2.0.0
.EMAIL Emily.richardson@dnr.wa.gov