Spot Forecast
Issued by NWS Portland, OR

000
FNUS76 KPQR 162006
FWSPQR

Spot Forecast for Cascade Head Pile Burn...The Nature Conservancy
National Weather Service Portland OR
106 PM PDT Tue Apr 16 2024

Forecast is based on ignition time of 1000 PDT on April 17.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Winds will start out northerly Wednesday morning and
will gain an offshore component late in the afternoon as winds
turn northeasterly. High pressure will continue to build into the
area tonight and into Wednesday and will keep conditions dry and
mild through the end of the week.

.WEDNESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 56.
Min humidity........65 percent.
Wind (20 ft)........
 Slope/valley.......North winds 10 to 16 mph.
 Ridgetop...........
Mixing height.......2300 ft AGL.
Transport winds.....North 10 to 18 mph increasing to 20 to 21 mph
                    late in the afternoon.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate).

TIME (PDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   0   1   0   1   1   1   2
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1
Temp............49  50  51  52  52  53  53  53
RH..............68  66  68  68  71  72  72  73
20 FT wind dir..N   N   N   N   N   N   N   N
20 FT wind spd..7   8   9   10  13  14  14  16
20 FT wind gust.10  10  12  13  17  18  18  19
Ridge wind dir..M   M   M   M   M   M   M   M
Ridge wind spd..M   M   M   M   M   M   M   M
Mix hgt (kft)...2.2 2.2 2.2 2.3 2.1 1.8 1.7 1.6
Transp wind dir.N   N   N   N   N   N   N   N
Transp wind spd.10  13  14  15  17  18  20  21
Haines index....4   4   4   4   4   4   4   4
Haines mid lvl..5   5   5   5   5   5   5   5

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 48.
Max humidity........74 percent.
Wind (20 ft)........
 Slope/valley.......North winds 8 to 16 mph shifting to the
                    northeast around 9 mph early in the morning.
 Ridgetop...........
Mixing height.......400 ft AGL.
Transport winds.....North 12 to 20 mph shifting to the northeast 12
                    to 14 mph overnight.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate).

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........2   2   6   6   6   5   5   5   5   5   5   14
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............53  53  53  52  51  51  50  50  49  49  49  49
RH..............72  73  74  73  71  68  66  64  63  62  61  60
20 FT wind dir..N   N   N   N   N   NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..16  16  14  14  14  9   9   9   8   8   8   9
20 FT wind gust.19  19  18  18  18  12  12  12  12  12  12  14
Ridge wind dir..M   M   M   M   M   M   M   M   M   M   M   M
Ridge wind spd..M   M   M   M   M   M   M   M   M   M   M   M
Mix hgt (kft)...1.3 1.2 0.7 0.6 0.5 0.4 0.4 0.4 0.4 0.4 0.5 0.5
Transp wind dir.N   N   N   N   NE  NE  NE  NE  NE  NE  E   E
Transp wind spd.20  20  18  17  17  13  12  12  12  13  13  14
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Haines mid lvl..5   5   5   5   5   5   5   5   5   5   5   5

.THURSDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 64.
Min humidity........51 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 9 to 12 mph.
 Ridgetop...........
Mixing height.......2100 ft AGL.
Transport winds.....Northeast 13 to 15 mph.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate).

TIME (PDT)      6 AM         10 AM        2 PM
Sky (%).........14           20           3
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............0            0            0
LAL.............1            1            1
Temp............49           55           60
RH..............59           54           53
20 FT wind......NE 9G14      NE 11G17     N 10G14
Ridgetop wind...M            M            M
Mix hgt (ft)....500          1300         2100
Transport wind..E 14         NE 14        NE 13
Haines index....4            4            4
Haines mid lvl..5            5            5

$$
Forecaster...Batz
Requested by...Catherine Dunn
Type of request...PRESCRIBED
.TAG 2410584.0/PQR
.DELDT 04/16/24
.FormatterVersion 2.0.0
.EMAIL cdunn@tnc.org,bayard.d.mcleod@odf.oregon.gov