424
FNUS76 KPQR 181520
FWSPQR

Spot Forecast for Cantrell Coyote Creek 3...Cascadia Fire Service LLC
National Weather Service Portland OR
820 AM PDT Fri Sep 18 2026

Forecast is based on ignition time of 0900 PDT on September 19.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Warm and dry conditions with northerly winds expected.
Min RH values remain above critical thresholds. Subsidence
inversion around 1-2 kft above ground level will mix out after
0900-1100 each morning.

.SATURDAY...

Sky/weather.........Partly cloudy then becoming mostly sunny.
CWR.................0 percent.
Max temperature.....Around 78.
Min humidity........44 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
Mixing height.......2700 ft AGL.
Transport winds.....North 3 to 7 mph.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........74  78  66  67  51  11  12  11  15
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Temp............54  58  63  67  71  74  76  78  76
RH..............95  88  76  68  61  54  49  46  45
20 FT wind dir..N   N   N   N   N   N   N   N   N
20 FT wind spd..0   1   2   3   3   4   4   3   2
20 FT wind gust.2   4   5   6   6   7   8   8   7
Mix hgt (kft)...0.9 1.1 1.4 1.7 2.1 2.2 2.5 2.7 2.5
Transp wind dir.N   N   N   N   N   N   N   N   N
Transp wind spd.3   5   5   5   5   6   7   7   7

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Min temperature.....Around 50.
Max humidity........96 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
Mixing height.......300 ft AGL.
Transport winds.....North 6 to 8 mph shifting to the northwest 3 to
                    5 mph overnight.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15  15  26  26  26  30  30  30  33  33  33  47
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............76  72  66  62  60  58  56  55  54  52  52  52
RH..............48  57  66  75  83  88  91  92  92  93  95  95
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..2   2   0   0   0   0   0   0   0   0   0   0
20 FT wind gust.7   7   2   2   2   2   2   2   2   2   2   1
Mix hgt (kft)...1.5 0.5 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.4 0.4 0.3
Transp wind dir.N   N   N   N   NW  NW  NW  NW  N   NW  NW  N
Transp wind spd.7   8   8   7   6   6   5   5   5   3   3   5

.SUNDAY...

Sky/weather.........Partly cloudy then becoming mostly sunny.
CWR.................0 percent.
Max temperature.....Around 80.
Min humidity........44 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
Mixing height.......3000 ft AGL.
Transport winds.....North 3 to 9 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........47  47  47  47  47  19  19  19  2   2   2   3
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............50  51  52  56  60  65  69  73  76  79  80  79
RH..............97  98  96  90  81  72  64  57  52  47  44  45
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..0   0   0   0   0   3   3   3   4   4   4   3
20 FT wind gust.1   1   2   2   2   6   6   6   8   8   8   8
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 1.7 1.7 1.7 2.5 2.5 2.5 3.0
Transp wind dir.N   N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.3   3   3   3   3   7   7   7   8   8   8   9

$$
Forecaster...Batz
Requested by...Jonathan C Paul
Type of request...PRESCRIBED
.TAG 2622121.0/PQR
.DELDT 09/18/26
.FormatterVersion 2.0.0
.EMAIL cascadiafire@gmail.com