Spot Forecast
Issued by NWS Portland, OR

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706
FNUS76 KPQR 250238
FWSPQR

Spot Forecast for N Thompson St Fire...Portland Fire & Rescue
National Weather Service Portland OR
738 PM PDT Mon Jun 24 2024

Forecast is based on forecast start time of 2000 PDT on June 24.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Weak high pressure will keep conditions clear and
dry over the next 24 hours. Aloft, a subsidence inversion up to
5000 ft ASL will lower to around 1000 ft after 0600 Tuesday. In
enclosed areas of streets, down to 600 ft. Generally northerly
winds through late Tuesday. Tonight, between 2300-0300, less than
a 15% chance of gusts up to 20 mph from the north. Winds will
ease on Tuesday but temperatures will rise.

On Wednesday, the initial stages of a weak cold front will push in
causing winds to shift to the west. Will see little change in
conditions, but there is less than a 30% chance of rain after 1600
Wednesday. Prior to that period, conditions look dry. Rain that
does fall will be minimal.

Note that the wind speeds below represent the 20 ft wind. Surface speeds
will vary based on nearby obstacles.


.REST OF TONIGHT...

Sky/weather.........Clear.
CWR.................0 percent.
Min temperature.....Around 54.
Max humidity........87 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph early in the
evening becoming light. 25% chance of gusts up
to 20 mph.
Mixing height.......600 ft AGL.
Transport winds.....North 6 to 13 mph.

TIME (PDT)      8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5   4   3   3   6   3   4   4   1   7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Temp............73  69  66  64  62  60  59  56  56  55
RH..............45  52  60  65  68  73  75  81  84  86
20 FT wind dir..N   NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..7   5   5   4   4   3   2   2   2   2
20 FT wind gust.11  6   7   6   6   5   5   4
Mix hgt (kft)...5.0 4.5 4.3 3.0 2.5 2.3 1.0 0.6 0.6 0.6
Transp wind dir.N   N   N   N   N   N   N   N   N   N
Transp wind spd.13  10  10  10  9   9   8   7   6   6

.TUESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Max temperature.....Around 87.
Min humidity........30 percent.
Wind (20 ft)........North winds less than 6 mph.
Mixing height.......5200 ft AGL.
Transport winds.....Northwest 3 to 6 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   9   10  9   9   2   0   1   1   3   1   4
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............54  56  59  62  67  71  75  78  82  84  85  86
RH..............86  81  75  68  62  54  48  42  38  35  33  31
20 FT wind dir..NW  N   N   N   N   N   NW  NW  NW  NW  NW  NW
20 FT wind spd..2   2   2   2   2   3   3   3   3   4   4   4
20 FT wind gust.                    5   5   5   6   6   6   6
Mix hgt (kft)...0.6 0.9 1.2 1.8 2.0 2.4 3.1 3.6 4.1 4.5 4.9 5.2
Transp wind dir.N   N   N   N   N   N   N   NW  NW  NW  NW  NW
Transp wind spd.6   6   5   5   3   5   3   5   5   5   5   6

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy.
CWR.................2 percent.
Min temperature.....Around 58.
Max humidity........77 percent.
Wind (20 ft)........Northwest winds less than 6 mph. Isolated gusts
up to 15 mph.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 2 to 9 mph.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........4   4   11  11  11  12  12  12  20  20  20  51
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............85  84  81  76  73  69  67  65  63  61  60  59
RH..............33  36  42  49  55  61  64  67  70  72  75  77
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  SW
20 FT wind spd..4   4   4   4   4   4   4   4   2   2   2   2
20 FT wind gust.6   6   6   6   6   6   6   6   4   4   4   4
Mix hgt (kft)...5.0 3.3 1.6 0.8 0.6 0.8 0.7 0.7 0.6 0.5 0.5 0.6
Transp wind dir.NW  NW  N   N   N   N   N   NW  NW  NW  W   W
Transp wind spd.6   6   7   8   9   9   8   7   6   5   2   2

.WEDNESDAY...

Sky/weather.........Partly sunny .
CWR.................2 percent increasing to 13 percent late in the
                    afternoon.
Max temperature.....Around 76.
Min humidity........51 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 6 mph late
                    in the morning, then shifting to the west
                    around 6 mph late in the afternoon. Gusts up to 12
mph after 1500.
Mixing height.......6100 ft AGL.
Transport winds.....Southwest 3 to 10 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........51  51  58  58  58  42  42  42  60  60  60  69
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
Temp............59  60  60  63  65  67  69  71  74  73  73  72
RH..............76  76  75  71  67  63  59  55  51  52  52  53
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  W
20 FT wind spd..2   2   3   3   3   5   5   5   6   6   6   6
20 FT wind gust.4   4   6   6   6   7   7   7   10  10  10  11
Mix hgt (kft)...1.0 1.5 2.2 2.7 3.2 3.9 4.8 5.6 6.1 5.9 5.3 4.5
Transp wind dir.W   SW  SW  SW  SW  SW  SW  SW  SW  W   W   W
Transp wind spd.3   6   8   9   9   9   9   10  10  10  10  10


$$
Forecaster...Muessle
Requested by...Frank
Type of request...OTHER
.TAG 2416648.0/PQR
.DELDT 06/24/24
.FormatterVersion 2.0.0
.EMAIL fire.liaison@portlandoregon.gov