Spot Forecast
Issued by NWS Portland, OR

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584
FNUS76 KPQR 121039
FWSPQR

Spot Forecast for High Lava IAP...USFS
National Weather Service Portland OR
339 AM PDT Wed Aug 12 2026

Forecast is based on forecast start time of 0600 PDT on August 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Low pressure will move over the region today with
deepening stratus across the area this morning. Onshore flow will
maintain west to northwest winds with gusts up to 20-25 mph in the
afternoon and evening. Expect elevated RH values through tonight.
Mixing heights increase on Thursday. There is a very small (5%)
chance for thunderstorms Thursday afternoon, but chances increase
to the northeast of the area.

.TODAY...

Sky/weather.........Partly sunny then becoming partly cloudy. Slight
                    chance of drizzle early in the morning.
CWR.................2 percent.
Chance of lightning.1 percent.
Max temperature.....Around 65.
Min humidity........70 percent.
Wind (20 ft)........
 Slope/valley.......West winds 6 to 8 mph. Gusts up to 20 mph in
                    the afternoon.
 Ridgetop...........West 8 to 12 mph. Gusts up to 24 mph in the
                    afternoon.
Mixing height.......3100 ft AGL.
Transport winds.....West 8 to 14 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........65  65  62  52  47  47  63  66  69  54  44  39
Weather cov.....SCH SCH SCH SCH
Weather type....DZL DZL DZL DZL
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of ltng (%).0   0   0   0   0   10  10  10  0   0   0   0
Temp............56  52  49  51  51  53  56  58  60  62  63  63
RH..............78  88  97  98  100 96  87  83  79  74  70  70
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..7   7   7   6   6   6   6   7   8   8   8   8
20 FT wind gust.12  12  13  12  12  13  14  16  17  17  18  18
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..8   8   8   8   8   8   8   10  10  11  11  12
Mix hgt (kft)...0.5 0.6 0.9 1.1 1.8 1.9 2.0 2.4 2.4 2.8 3.1 3.0
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.9   9   9   8   9   10  10  12  12  13  13  14

.TONIGHT...

Sky/weather.........Partly cloudy. Patchy smoke overnight.
CWR.................1 percent.
Chance of lightning.3 percent.
Min temperature.....Around 50.
Max humidity........94-98 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 9 mph with gusts to around
                    18 mph in the evening becoming light.
 Ridgetop...........Northwest 7 to 12 mph with gusts up to 24 mph in
                    the evening.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 5 to 14 mph.

TIME (PDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........29        49        38        48
Weather cov.....                              PATCHY
Weather type....NONE      NONE      NONE      SMOKE
Tstm cov........
CWR.............0         0         0         0
Chc of ltng (%).0         0         0         0
Temp............63        58        59        59
RH..............71        87        81        79
20 FT wind......W 9G18    W 7G13    NW 5G8    NW 3G6
Ridgetop wind...NW 12G24  W 9G17    NW 7G11   NW 5G9
Mix hgt (ft)....2900      500       300       300
Transport wind..NW 14     W 10      N 7       N 7

.THURSDAY...

Sky/weather.........Partly cloudy then becoming mostly sunny.
                    Areas of smoke in the morning.
CWR.................1 percent.
Chance of lightning.5 percent.
Max temperature.....Around 72.
Min humidity........54-58 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming west 5 to 6 mph late in
                    the afternoon.
 Ridgetop...........West 5 to 8 mph. Gusts up to 15 mph in the
                    afternoon.
Mixing height.......5500 ft AGL.
Transport winds.....West around 5 mph shifting to the north early
                    in the morning, then shifting to the east 3 to
                    8 mph in the late morning and early afternoon
                    shifting to the northwest 8 to 9 mph late in
                    the afternoon.

TIME (PDT)      6 AM         10 AM        2 PM
Sky (%).........58           55           19
Weather cov.....PATCHY       AREAS        AREAS
Weather type....SMOKE        SMOKE        SMOKE
Tstm cov........
CWR.............0            0            0
Chc of ltng (%).0            0            0
Temp............56           56           68
RH..............78           86           59
20 FT wind......NW 3G6       W 2G6        W 5G11
Ridgetop wind...NW 5G8       W 5G8        W 8G15
Mix hgt (ft)....400          2000         4400
Transport wind..W 5          E 5          NE 7

$$
Forecaster...Hartsock
Requested by...Andrew Myhra
Type of request...WILDFIRE
.TAG 2618852.15/PQR
.DELDT 08/12/26
.FormatterVersion 2.0.0
.EMAIL andrew.myhra@usda.gov