Spot Forecast
Issued by NWS Portland, OR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
174
FNUS76 KPQR 242300
FWSPQR

Spot Forecast for High Lava IAP...USFS
National Weather Service Portland OR
400 PM PDT Mon Aug 24 2026

Forecast is based on forecast start time of 0700 PDT on August 25.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Warm and dry conditions Tuesday, then cooling through
the week. Southeast/east winds with gusts up 20 mph will weaken and
shift southwest in the late afternoon, then shift west into
Wednesday. Minimum RH around 30 to 50% Tuesday will continue to
improve through the week as onshore flow continues.

.TUESDAY...

Sky/weather.........Partly cloudy then becoming mostly sunny. Patchy
                    smoke in the morning.
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....Around 79.
Min humidity........41 percent.
Wind (20 ft)........
 Slope/valley.......Southeast winds 7 to 9 mph becoming southwest
                    late in the afternoon. Gusts up to 18 mph.
 Ridgetop...........Southeast winds 9 to 11 mph becoming southwest
                    late in the afternoon. Gusts up to 20 mph.
Mixing height.......3000 ft AGL.
Transport winds.....South 6 to 8 mph shifting to the southwest 8 to
                    12 mph late in the afternoon.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  43  31  25  32  43  50  18  3   2   3
Weather cov.....PTY PTY PTY PTY
Weather type....SMK SMK SMK SMK
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0
Temp............64  63  66  68  70  73  76  77  77  78  76
RH..............43  46  45  46  44  42  41  41  40  41  41
20 FT wind dir..S   SE  S   SE  S   S   SW  SW  W   W   W
20 FT wind spd..3   4   3   3   3   4   6   7   8   8   9
20 FT wind gust.6   6   6   6   7   10  10  12  13  13  13
Ridge wind dir..S   SE  S   SE  S   S   SW  SW  W   W   W
Ridge wind spd..3   4   4   5   6   7   8   9   9   10   11
Mix hgt (kft)...0.3 0.3 0.8 1.4 2.2 2.8 3.0 3.0 2.9 3.0 2.9
Transp wind dir.S   S   S   SE  S   S   S   SW  SW  W   W
Transp wind spd.6   6   6   7   7   8   8   8   8   9   12

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 51.
Max humidity........87 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 7 mph early in the evening
                    becoming light.
 Ridgetop...........West winds around 9 mph early in the evening
                    becoming light.
Mixing height.......200 ft AGL.
Transport winds.....West 6 to 10 mph.

TIME (PDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........3         9         13        21
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of ltng (%).0         0         0         0
Temp............75        66        63        59
RH..............42        57        64        74
20 FT wind......W 6G13    W 3G8     W 3G6     W 3G6
Ridgetop wind...M         M         M         M
Mix hgt (ft)....2800      200       300       400
Transport wind..W 10      W 7       SW 6      W 7

.WEDNESDAY...

Sky/weather.........Partly cloudy then becoming mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 72.
Min humidity........46 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming west 5 to 6 mph late in
                    the morning.
 Ridgetop...........Light winds becoming west 6 to 8 mph late in
                    the morning.
Mixing height.......3100 ft AGL.
Transport winds.....West 6 to 10 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50  50  34  34  34  19  19  19  19  19  19  21
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............55  53  51  54  58  61  64  67  70  70  70  70
RH..............78  83  87  82  74  64  57  52  48  45  45  46
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..3   3   3   3   3   5   5   5   6   6   6   6
20 FT wind gust.6   6   6   6   6   10  10  10  13  13  13  14
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..3   3   3   3   3   5   5   6   6   7   8   8
Mix hgt (kft)...0.4 0.5 0.5 0.5 0.5 2.1 2.1 2.1 3.1 3.1 3.1 3.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.6   6   6   6   6   8   8   8   9   9   9   10

$$
Forecaster...Hall
Requested by...Scott Koehler
Type of request...WILDFIRE
.TAG 2618852.40/PQR
.DELDT 08/24/26
.FormatterVersion 2.0.0
.EMAIL Scott_Koehler@firenet.gov