436
FNUS76 KPQR 242210
FWSPQR

Spot Forecast for 322 MF...OREIC
National Weather Service Portland OR
310 PM PDT Sun Aug 24 2025

Forecast is based on forecast start time of 1500 PDT on August 24.
If conditions become unrepresentative, contact the National Weather
Service.

...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...

.DISCUSSION...Hot and dry weather continues into the workweek.
Near-critical humidity of 25-30% this afternoon will see a
moderate recovery to 65-70% tonight. Scattered afternoon and
evening thunderstorms may produce additional lightning strikes, as
well as locally variable/gusty winds and brief heavy downpours.
North to northwest winds of 5-10 mph this afternoon and evening
will become light and variable after sunset, then turn out of the
south to southeast at less than 5 mph overnight. Further heat and
near-critical humidity with relatively light winds and scattered
afternoon/evening wet thunderstorms are expected Monday.

.REST OF TODAY...

Sky/weather.........Partly sunny. Areas of smoke late in the
                    afternoon. Haze late in the afternoon. Chance
                    of thunderstorms late in the afternoon. Chance
                    of showers through the day. Slight chance of
                    thunderstorms late in the afternoon.
CWR.................3 percent.
Chance of lightning.27 percent.
Max temperature.....Around 88.
Min humidity........26 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5 mph shifting to the north
                    late in the afternoon. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
 Ridgetop...........
Mixing height.......8400 ft AGL.
Transport winds.....Southeast 6 to 8 mph.

TIME (PDT)      3PM 4PM 5PM
Sky (%).........51  54  62
Weather cov.....CHC CHC DEF
Weather type....RW  RW  HAZ
Tstm cov........CHC CHC SCH
CWR.............0   0   0
Chc of ltng (%).30  30  20
Temp............86  86  83
RH..............27  30  34
20 FT wind dir..W   N   N
20 FT wind spd..5   5   5
20 FT wind gust.7   8   8
Mix hgt (kft)...8.4 6.4 4.5
Transp wind dir.SE  SE  SE
Transp wind spd.6   7   8

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy then
                    becoming partly cloudy. Slight chance of
                    thunderstorms early in the evening. Chance of
                    showers in the evening. Haze in the evening.
                    Areas of smoke overnight, then haze early in
                    the morning.
CWR.................3 percent increasing to 19 percent early in the
                    morning.
Chance of lightning.20 percent.
Min temperature.....Around 67.
Max humidity........53 percent.
Wind (20 ft)........
 Slope/valley.......Light winds. Gusty and erratic winds expected
                    near thunderstorms early in the evening.
 Ridgetop...........
Mixing height.......1100 ft AGL.
Transport winds.....North around 7 mph shifting to the east 6 to 8
                    mph in the late evening and overnight.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........59  61  63  65  69  64  51  51  50  46  48  40
Weather cov.....CHC DEF DEF DEF DEF DEF ARS ARS ARS ARS ARS DEF
Weather type....RW  HAZ HAZ HAZ HAZ HAZ SMK SMK SMK SMK SMK HAZ
Tstm cov........SCH SCH
CWR.............0   0   0   0   0   0   0   0   0   0   0   20
Chc of ltng (%).20  20  10  10  10  0   0   0   0   0   10  10
Temp............82  81  76  73  72  71  70  69  69  68  68  67
RH..............36  41  44  49  50  52  52  51  50  51  49  48
20 FT wind dir..N   NE  NE  E   E   E   E   SE  SE  E   SE  SE
20 FT wind spd..4   2   2   2   2   2   2   2   2   2   2   2
20 FT wind gust.7   6   4   4   4   5   5   5   5   5   5   5
Mix hgt (kft)...3.8 2.3 1.6 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.1
Transp wind dir.N   N   N   NE  E   E   SE  SE  SE  E   E   E
Transp wind spd.7   7   7   7   6   8   7   7   7   6   6   6

$$
Forecaster...Picard
Requested by...OREIC
Type of request...WILDFIRE
.TAG 2520588.0/PQR
.DELDT 08/24/25
.FormatterVersion 2.0.0
.EMAIL oreic@firenet.gov,jaime.garcia@usda.gov