460
FNUS76 KPQR 172059
FWSPQR

Spot Forecast for High Lava IAP...USFS
National Weather Service Portland OR
159 PM PDT Mon Aug 17 2026

Forecast is based on forecast start time of 0700 PDT on August 18.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Warm and dry conditions continue through the
daytime hours with good to excellent overnight RH recoveries
expected as onshore flow continues. Expect marine stratus to
develop overnight before scouring out in the late morning/early
afternoon each day. North/northwest winds continue with gusts
approaching 20 mph in the afternoon. A minor pattern change is
expected towards the latter part of this week as winds are
expected to become more southerly. Also, there is a very low
(5% chance) of thunderstorms towards the end of the week. Will
continue to monitor and update the forecast as needed.

.TUESDAY...

Sky/weather.........Partly cloudy to mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 72.
Min humidity........49 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming west 5 to 8 mph with gusts
                    to around 17 mph in the late morning and
                    afternoon.
 Ridgetop...........Light winds becoming west 7 to 9 mph with gusts
                    to around 20 mph in the late morning and
                    afternoon.
Mixing height.......2700 ft AGL.
Transport winds.....West 7 to 14 mph.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........43  35  27  18  29  22  23  24  14  11  24
Weather cov.....
Weather type....
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............52  51  54  57  60  64  67  69  70  70  70
RH..............88  90  85  79  71  62  57  53  51  50  49
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..4   4   5   5   6   6   7   7   8   8   8
20 FT wind gust.7   7   10  10  12  13  14  14  16  17  17
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..8   8   11  11  14  15  15  17  19  20  20
Mix hgt (kft)...0.3 0.6 1.2 1.4 2.0 2.1 2.2 2.6 2.7 2.7 2.6
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.7   7   8   9   9   9   10  12  13  14  14

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 49.
Max humidity........93 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 8 mph with gusts to around 17
                    mph in the evening becoming light overnight.
 Ridgetop...........West winds 7 to 9 mph with gusts around 20 mph
                    in the evening becoming light overnight.
Mixing height.......200 ft AGL.
Transport winds.....West 6 to 14 mph.

TIME (PDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........24        36        35        51
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of ltng (%).0         0         0         0
Temp............71        61        58        56
RH..............51        70        76        79
20 FT wind......W 8G17    W 6G12    W 5G10    NW 4G7
Ridgetop wind...W 10G20   W 8G15    W 7G12    W  5G9
Mix hgt (ft)....2500      200       300       400
Transport wind..W 14      W 9       W 6       W 7

.WEDNESDAY...

Sky/weather.........Partly sunny to partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 72.
Min humidity........51 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming west 4 to 6 mph late in
                    the afternoon.
 Ridgetop...........Light winds becoming west 7 to 10 mph late in
                    the afternoon.
Mixing height.......2800 ft AGL.
Transport winds.....West 6 to 9 mph.

TIME (PDT)      6 AM         10 AM        2 PM
Sky (%).........52           33           48
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............0            0            0
Chc of ltng (%).0            0            0
Temp............53           56           69
RH..............82           79           53
20 FT wind......NW 4G7       W 4G7        W 5G10
Ridgetop wind...NW 5G8       W 5G8        W 8G12
Mix hgt (ft)....400          1300         2600
Transport wind..NW 6         W 7          W 9

$$
Forecaster...Bishop
Requested by...Jody Nickerson-Powell
Type of request...WILDFIRE
.TAG 2618852.26/PQR
.DELDT 08/17/26
.FormatterVersion 2.0.0
.EMAIL jody_nickerson-powell@firenet.gov