758
FNUS76 KPQR 111158
FWSPQR

Spot Forecast for NBTS demo...Oregon State University
National Weather Service Portland OR
458 AM PDT Tue Aug 11 2026

Forecast is based on ignition time of 0800 PDT on August 11.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Warm and dry conditions expected as persistent
onshore flow continues with good overnight RH recoveries. Diurnal
north to northwest winds with gusts up to 15 mph each afternoon.

.TODAY...

Sky/weather.........Partly cloudy then becoming mostly sunny.
Max temperature.....Around 85.
Min humidity........40 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming north 5 to 6 mph late in
                    the morning, then shifting to the northwest 6
                    to 7 mph late in the afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....North 8 to 9 mph shifting to the west around 10
                    mph late in the afternoon.

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  33  27  21  8   19  23  23  18  16
Weather cov.....
Weather type....
Tstm cov........
Temp............60  63  69  73  76  80  83  83  85  83
RH..............76  67  60  53  48  44  41  41  41  43
20 FT wind dir..N   N   N   N   N   N   N   N   NW  NW
20 FT wind spd..3   3   4   5   5   5   5   6   6   7
20 FT wind gust.6   7   7   10  10  10  10  11  11  12
Mix hgt (kft)...1.1 1.8 2.1 2.7 3.6 4.0 4.7 5.2 5.0 4.1
Transp wind dir.N   N   N   N   N   N   N   N   NW  W
Transp wind spd.8   9   8   8   9   8   8   8   9   10

.TONIGHT...

Sky/weather.........Partly cloudy.
Min temperature.....Around 56.
Max humidity........92 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 9 mph in the evening
                    becoming light.
Mixing height.......400 ft AGL.
Transport winds.....Northwest 6 to 14 mph.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........4   2   10  19  18  40  35  38  35  27  43  53
Weather cov.....
Weather type....
Tstm cov........
Temp............82  79  73  70  67  66  65  63  62  61  59  58
RH..............48  54  61  70  75  78  82  85  85  86  90  91
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..8   9   9   8   6   5   4   3   3   2   2   1
20 FT wind gust.14  14  14  13  11  8   6   6   6   5   4   2
Mix hgt (kft)...2.9 2.1 1.0 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW  W   W   W   W   NW  NW  NW  NW  NW  NW  NW
Transp wind spd.13  14  14  13  10  9   7   7   6   6   6   6

.WEDNESDAY...

Sky/weather.........Mostly cloudy then becoming mostly sunny.
Max temperature.....Around 80.
Min humidity........45-50 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming northwest 5 to 7 mph late
                    in the afternoon.
Mixing height.......5900 ft AGL.
Transport winds.....North 5 to 10 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........53  53  50  50  50  56  56  56  40  40  40  18
Weather cov.....
Weather type....
Tstm cov........
Temp............58  57  61  63  67  70  72  75  78  79  79  80
RH..............94  95  87  79  72  67  62  58  53  50  48  49
20 FT wind dir..NW  NW  N   N   N   N   N   N   N   N   N   NW
20 FT wind spd..1   1   2   2   2   4   4   4   5   5   5   7
20 FT wind gust.2   2   6   6   6   8   8   8   11  11  11  14
Mix hgt (kft)...0.4 0.5 1.2 2.1 2.8 3.5 3.8 4.5 5.2 5.7 5.9 5.6
Transp wind dir.NW  N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.5   5   5   6   6   7   7   8   9   8   8   10

$$
Forecaster...Hartsock
Requested by...Glenn Jones
Type of request...PRESCRIBED
.TAG 2619394.0/PQR
.DELDT 08/11/26
.FormatterVersion 2.0.0
.EMAIL glenn.jones@oregonstate.edu