Spot Forecast
Issued by NWS Portland, OR

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517
FNUS76 KPQR 241626
FWSPQR

Spot Forecast for William L Finley NWR RX...USFWS
National Weather Service Portland OR
926 AM PDT Tue Sep 24 2024

Forecast is based on ignition time of 0900 PDT on September 24.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A transition from offshore flow to onshore flow
occurs later today and tonight as a frontal system moves into
the region. Light rain likely reaching the fire early Wednesday
morning.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................1 percent.
LAL.................1.
Max temperature.....Around 90.
Min humidity........41 percent.
Wind (20 ft)........
 Slope/valley.......Northeast wind to 2 mph becoming southwest
                    2 to 4 mph in the afternoon.
Mixing height.......4100 ft AGL.
Transport winds.....Northeast 3 to 7 mph shifting to the southwest
                    2 to 8 mph in the afternoon.
Haines Index........3 (very low).
Haines Index (Mid)..5 (moderate).

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  3   1   4   23  17  35  40  12
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1
Temp............63  68  74  79  83  87  89  90  88
RH..............87  77  66  57  50  45  41  41  45
20 FT wind dir..N   N   NE  E   SE  S   S   SW  SW
20 FT wind spd..2   2   2   2   1   1   2   2   4
20 FT wind gust.                2   2           5
Mix hgt (kft)...1.0 1.4 1.6 1.7 2.2 2.4 3.5 4.1 3.3
Transp wind dir.N   NE  NE  NE  S   S   SW  SW  SW
Transp wind spd.7   6   5   3   2   5   7   10  10
Haines index....3   3   3   3   3   3   3   3   3
Haines mid lvl..5   5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Mostly clear then becoming mostly cloudy. Rain
                    likely late.
CWR.................1 percent increasing to 14 percent late.
LAL.................1.
Min temperature.....Around 55.
Max humidity........97 percent.
Wind (20 ft)........
 Slope/valley.......Southwest wind around 5 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southwest 5 to 10 mph.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate).

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........14  16  23  17  10  5   9   10  11  16  27  80
Weather cov.....                                            LKY
Weather type....                                            RN
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............83  76  69  65  61  59  58  57  56  56  55  55
RH..............52  61  71  79  85  90  93  95  96  97  97  97
20 FT wind dir..W   SW  SW  SW  S   S   S   S   S   S   S   S
20 FT wind spd..4   4   4   4   5   5   5   5   5   4   4   4
20 FT wind gust.5   5   5   5   6   6   6   6   6   5   5   5
Mix hgt (kft)...1.4 0.7 0.6 0.6 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6
Transp wind dir.W   W   W   SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.10  8   8   8   8   7   7   7   6   5   6   5
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

.WEDNESDAY...

Sky/weather.........Mostly cloudy. Rain likely in the morning.
                    A slight chance of rain showers late in
                    the afternoon.
CWR.................14 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........83 percent.
Wind (20 ft)........
 Slope/valley.......Southwest 4 to 6 mph early in the morning,
                    shifting to the west around 5 mph late
                    in the afternoon.
Mixing height.......3000 ft AGL.
Transport winds.....Southwest 5 to 11 mph.
Haines Index........2 (very low).
Haines Index (Mid)..4 (low).

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........80  80  80  80  80  90  90  90  81  81  81  73
Weather cov.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY SCH
Weather type....RN  RN  RN  RN  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............55  55  57  59  62  65  68  69  70  69  68  66
RH..............97  96  94  92  89  86  84  83  83  84  86  87
20 FT wind dir..S   S   S   S   S   S   S   S   SW  SW  SW  W
20 FT wind spd..4   4   5   5   5   6   6   6   6   6   6   5
20 FT wind gust.5   5   6   6   6                           6
Mix hgt (kft)...0.9 0.9 1.1 1.5 2.0 2.1 2.4 2.7 3.0 2.9 2.6 2.2
Transp wind dir.SW  S   S   S   S   SW  SW  W   W   W   W   W
Transp wind spd.5   6   8   8   9   8   9   12  13  13  13  12
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
Haines mid lvl..4   4   4   4   4   4   4   4   4   4   4   4

$$
Forecaster...Higa
Requested by...Jeremiah Maghan
Type of request...PRESCRIBED
.TAG 2422897.1/PQR
.DELDT 09/24/24
.FormatterVersion 2.0.0
.EMAIL jeremiah_maghan@fws.gov,silas_baffa@fws.gov