799
FNUS76 KPQR 132123
FWSPQR

Spot Forecast for High Lava IAP...USFS
National Weather Service Portland OR
223 PM PDT Thu Aug 13 2026

Forecast is based on forecast start time of 0700 PDT on August 14.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...West/northwest winds return, which will help to
reduce any surface smoke that persisted overnight. Mostly clear
skies are expected to develop for Friday, but daytime highs are
expected to be at or near what was observed on Thursday. A weak
overnight subsidnce inversion will likley develop and that will
re-establish smoke near the surface. Saturday will look fairly
similar to Friday. 10-20% chance for thunderstorms Friday and
Saturday afternoons.

.FRIDAY...

Sky/weather.........Partly cloudy to mostly sunny. Patchy smoke. Slight
                    chance for thunderstroms in the afternoon and through
                    the evening.
CWR.................2 percent.
Chance of lightning.7 percent.
Max temperature.....Around 72.
Min humidity........56 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming north/northwest 5-7 mph late in
                    the afternoon.
 Ridgetop...........Light winds becoming north/northwest 7-9 mph late in
                    the afternoon.
Mixing height.......3900 ft AGL.
Transport winds.....Southwest 5 to 8 mph.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37  53  25  17  20  20  20  25  28  27  34
Weather cov.....PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY
Weather type....SMK SMK SMK SMK SMK SMK SMK 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   10  0   10  0
Temp............55  54  56  58  61  65  69  70  72  72  71
RH..............83  89  88  85  78  67  61  57  56  56  56
20 FT wind dir..SW  W   W   SW  SW  SW  W   W   W   W   W
20 FT wind spd..3   3   3   3   3   4   4   5   5   5   6
20 FT wind gust.6   6   6   6   6   7   8   10  10  10  10
Ridge wind dir..SW  W   W   SW  SW  SW  W   W   W   W   W
Ridge wind spd..8   8   8   8   8   9   9   12  12  12  12
Mix hgt (kft)...0.3 0.7 1.1 1.5 2.3 2.8 3.5 3.8 3.9 3.4 3.1
Transp wind dir.SW  SW  SW  SW  SW  S   S   S   SW  W   W
Transp wind spd.5   5   5   5   5   6   7   7   7   7   8

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Patchy smoke in the evening.
CWR.................1 percent.
Chance of lightning.2 percent.
Min temperature.....Around 53.
Max humidity........92 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5-7 mph early in the evening
                    becoming light.
 Ridgetop...........West winds around 7-9 mph early in the evening
                    becoming light.
Mixing height.......200 ft AGL.
Transport winds.....West 5 to 8 mph.

TIME (PDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........34        57        39        61
Weather cov.....PATCHY    PATCHY    PATCHY
Weather type....SMOKE     SMOKE     SMOKE     NONE
Tstm cov........
CWR.............0         0         0         0
Chc of ltng (%).0         0         0         0
Temp............70        64        63        61
RH..............58        76        74        76
20 FT wind......W 6G10    W 4G8     W 3G6     W 3G6
Ridgetop wind...W 7G12    W 6G10    W 4G7     W 4G7
Mix hgt (ft)....3500      300       300       400
Transport wind..W 8       W 6       W 6       W 6

.SATURDAY...

Sky/weather.........Mostly cloudy to mostly sunny. Slight chance for
                    thunderstorms in the afternoon.
CWR.................1 percent.
Chance of lightning.2 percent.
Max temperature.....Around 73.
Min humidity........50 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds around 5-7 mph early in the
                    evening becoming light.
 Ridgetop...........Northwest winds around 7-9 mph early in the
                    evening becoming light.
Mixing height.......3800 ft AGL.
Transport winds.....West 6 to 10 mph.

TIME (PDT)      6 AM         10 AM        2 PM
Sky (%).........83           58           15
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............0            0            0
Chc of ltng (%).0            0            0
Temp............57           58           71
RH..............78           81           54
20 FT wind......NW 3G6       W 3G6        W 6G10
Ridgetop wind...NW 4G7       W 4G8        W 8G12
Mix hgt (ft)....400          1700         3600
Transport wind..NW 6         W 7          W 8

$$
Forecaster...Bishop
Requested by...Andrew Myhra
Type of request...WILDFIRE
.TAG 2618852.18/PQR
.DELDT 08/13/26
.FormatterVersion 2.0.0
.EMAIL andrew.myhra@usda.gov,jody_nickerson-powell@firenet.gov