Spot Forecast
Issued by NWS Portland, OR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8
745
FNUS76 KPQR 311234
FWSPQR

Spot Forecast for Honker 620 / 660...USFS
National Weather Service Portland OR
534 AM PDT Fri May 31 2024

Forecast is based on ignition time of 0800 PDT on May 31.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...High pressure aloft will lead to seasonably warm and
dry weather today. Thermal trough of low pressure at the surface
will move across the Cascades this afternoon, slightly enhancing
instability. A weak disturbance tonight will deepen the marine
layer, leading to some cloudiness and slightly cooler temperatures
Saturday. A stronger system is expected to bring wetting rains
throughout the region Sunday into Monday.


.TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....76-79.
Min humidity........Around 25 percent.
Wind (20 ft)........
 Slope/valley.......Upslope 2-4 mph, becoming west 3-6 mph with
                     gusts up to 15 mph in the afternoon.
 Ridgetop...........East 0-3 mph in the morning, becoming west-
                     southwest 4-7 mph by 1300. Afternoon gusts
                     15-20 mph.
Mixing height.......3500-4000 ft AGL.
Transport winds.....East 5 to 7 mph shifting to the northwest 7 to
                    10 mph in the afternoon.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate) to 6 (high).

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Temp............47  54  62  68  73  75  77  77  78  77
RH..............76  64  42  35  30  28  27  25  24  26
20 FT wind dir..NE  NE  W   W   W   W   W   W   W   W
20 FT wind spd..1   1   1   2   3   3   5   6   6   6
20 FT wind gust.3   3   3   4   6   10  11  15  15  15
Mix hgt (kft)...0.8 1.6 2.3 3.2 3.6 3.9 3.8 3.7 3.5 3.3
Transp wind dir.E   E   E   SE  SE  NW  NW  NW  W   W
Transp wind spd.7   7   7   5   6   7   9   8   8   10

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Patchy fog after 3 am.
CWR.................0 percent.
LAL.................1.
Min temperature.....42-45.
Max humidity........99 percent.
Wind (20 ft)........
 Slope/valley.......West 3-7 mph with gusts up to 15 mph until
                     1900, becoming downslope/drainage 0-3 mph
                     by 2100.
 Ridgetop...........West 3-7 mph with gusts up to 15 mph until
                     1900, then decreasing. Winds becoming east-
                     southeast 1-4 mph by 2200.
Mixing height.......Decreasing to 300 ft AGL overnight.
Transport winds.....West 6 to 9 mph shifting to the southwest 5 to
                    6 mph late in the evening.
Haines Index........4 (low).
Haines Index (Mid)..4 (low).

TIME (PDT)      6PM    7PM    8PM    9PM    10P
Temp............75     71     64     56     52
RH..............29     35     42     57     65
20 FT wind dir..W      W      W      E      E
20 FT wind spd..6      5      3      1      2
20 FT wind gust.15     12     8      2      5
Mix hgt (kft)...3.1    2.4    1.1    0.6    0.6
Transp wind dir.W      W      NW     W      VRBL
Transp wind spd.9      9      8      6      3

.SATURDAY...

Sky/weather.........Partly sunny. Patchy fog early in the morning.
                    Slight chance of rain late in the afternoon.
CWR.................Near zero.
LAL.................1.
Max temperature.....67-70.
Min humidity........45 percent.
Wind (20 ft)........
 Slope/valley.......Upslope 1-4 mph in the morning, becoming west
                     3-6 mph with gusts up to 20 mph in the
                     afternoon.
 Ridgetop...........South 0-3 mph early, becoming west-southwest
                     4-8 mph with gusts up to 20 mph in the
                     afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....West 6 to 15 mph.
Haines Index........2 (very low).
Haines Index (Mid)..5 (moderate).

$$
Forecaster...Weagle
Requested by...Dirk Rogers
Type of request...PRESCRIBED
.TAG 2415378.0/PQR
.DELDT 05/31/24
.FormatterVersion 2.0.0
.EMAIL dirk.rogers@usda.gov