Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
374
FNUS56 KSEW 231450
FWFSEW
Fire Weather Planning Forecast for Western Washington
National Weather Service Seattle WA
750 AM PDT Sat Aug 23 2025
...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY FOR MUCH OF THE
WESTERN WASHINGTON LOWLANDS...
...RED FLAG WARNING IN EFFECT FOR HOT, DRY, AND UNSTABLE CONDITIONS UNTIL
9 PM PDT SUNDAY FOR FIRE WEATHER ZONES 661, 658, AND 659...
...EXTREME HEAT WARNING IN EFFECT UNTIL 5 AM PDT TUESDAY FOR THE
CASCADE FOOTHILLS AND SEATTLE METRO AREA...
...FIRE WEATHER WATCH IN EFFECT FOR HOT, DRY, AND UNSTABLE
CONDITIONS FROM MONDAY AFTERNOON THROUGH TUESDAY EVENING FOR FIRE
WEATHER ZONES 658 AND 659...
.DISCUSSION...Hot and dry conditions continue through this weekend.
Highs in the 80s and 90s with minimum RHs form 15-30% are expected
across much of the mountains and the lowlands south of Puget Sound.
Overnight RH recoveries are poor to moderate due to offshore flow.
Increasing instability going into the weekend will lead to critical
fire weather conditions through the weekend over the mountains with
elevated conditions across the lowlands south of Puget Sound. These
conditions look to persist into next week as temperatures/humidity
slowly moderates throughout the week.
Forecast for 20 foot wind speed (valleys and ridge tops) are 10
minute averages reflecting RAWS winds.
WAZ649-232315-
North and Central Coastal Strip-
750 AM PDT Sat Aug 23 2025
...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......75-85.
* Min humidity..........42-57 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northeast winds around 3 mph shifting to the
northwest around 5 mph in the afternoon.
* Ridges/upr slopes...Northeast winds around 3 mph shifting to the
north around 4 mph in the afternoon.
* Mixing height.........400-600 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the
northwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......54-64.
* Max humidity..........76-91 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds 3 to 5 mph.
* Ridges/upr slopes...Northwest winds 3 to 5 mph.
* Mixing height.........400 ft AGL.
* Transport winds.......Northwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......69-79.
* Min humidity..........60-75 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 4 mph in the
afternoon.
* Ridges/upr slopes...Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........300-600 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest
winds around 4 mph in the evening becoming light.
.MONDAY...Mostly sunny. Highs 70 to 80. Light winds becoming west
around 4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest
winds 3 to 5 mph.
.TUESDAY...Mostly sunny. Highs 68 to 78. Light winds becoming west
around 4 mph in the afternoon.
.TUESDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Light winds.
.WEDNESDAY...Partly sunny. Highs 66 to 76. Southwest winds around
3 mph.
.THURSDAY...Mostly cloudy. Lows in the upper 50s. Highs 64 to 74.
.FRIDAY...Mostly cloudy with slight chance of rain. Lows in the
upper 50s. Highs 64 to 74.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ650-232315-
North Coastal Lowlands-
750 AM PDT Sat Aug 23 2025
...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......78-88.
* Min humidity..........32-47 percent...except 28-38 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming northwest around 3 mph
in the afternoon.
* Ridges/upr slopes...Northeast winds 3 to 5 mph.
* Mixing height.........600-1400 ft AGL.
* Transport winds.......East around 5 mph shifting to the north in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......60-70.
* Max humidity..........59-74 percent...except 50-65 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..North winds around 3 mph in the evening
becoming light.
* Ridges/upr slopes...Northeast winds 3 to 5 mph.
* Mixing height.........500-700 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......77-87.
* Min humidity..........42-57 percent...except 34-45 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 3 mph in the
afternoon.
* Ridges/upr slopes...Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........500-1400 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 58 to 68. Northwest winds 3 to
4 mph.
.MONDAY...Mostly sunny. Highs 77 to 87. Light winds becoming west
around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 56 to 66. Northwest winds up to
3 mph.
.TUESDAY...Mostly sunny. Highs 74 to 84. Light winds becoming west
around 3 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 56 to 66. Light winds.
.WEDNESDAY...Mostly sunny. Highs 72 to 82. Light winds.
.THURSDAY...Mostly cloudy. Lows in the upper 50s. Highs 68 to 78.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the upper 50s.
Highs 66 to 76.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ651-232315-
Central Coastal Lowlands-
750 AM PDT Sat Aug 23 2025
...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......85-95...except 82-92 ridges.
* Min humidity..........28-43 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming north around 3 mph in
the afternoon.
* Ridges/upr slopes...Northeast winds around 3 mph in the morning
becoming light.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......59-69.
* Max humidity..........63-78 percent...except 61 percent ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds.
* Ridges/upr slopes...Light winds.
* Mixing height.........400-700 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......82-92.
* Min humidity..........41-56 percent...except 39 percent ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 3 mph in the
afternoon.
* Ridges/upr slopes...Light winds.
* Mixing height.........500-1500 ft AGL.
* Transport winds.......Light winds becoming west around 5 mph in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows 55 to 65. West winds around
3 mph in the evening becoming light.
.MONDAY...Mostly sunny. Highs 80 to 90. Light winds becoming west
around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 55 to 65. West winds around
3 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs 78 to 88. Light winds becoming west
around 4 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light winds.
.WEDNESDAY...Partly sunny. Highs 75 to 85. Light winds.
.THURSDAY...Mostly cloudy. Lows in the upper 50s. Highs 71 to
81 valleys...66 to 76 ridges.
.FRIDAY...Mostly cloudy with slight chance of rain. Lows in the
upper 50s. Highs 69 to 79 valleys...63 to 73 ridges.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ652-232315-
West Portion of the Olympic Mountains-
750 AM PDT Sat Aug 23 2025
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......82-92...except 78-88 ridges.
* Min humidity..........23-38 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph.
* Ridges/upr slopes...Northeast winds around 4 mph shifting to the
west around 3 mph in the afternoon.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......62-72.
* Max humidity..........43-58 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 2 to 5 mph.
* Ridges/upr slopes...Light winds becoming east around 5 mph after
midnight.
* Mixing height.........300-700 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15000 Feet.
.SUNDAY...
* Sky/weather...........Sunny.
* Max temperature.......80-90...except 76-86 ridges.
* Min humidity..........27-42 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...East winds around 3 mph shifting to the west
in the afternoon.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 15500 feet. Lows in the
mid 60s. Light winds becoming east around 3 mph after midnight.
.MONDAY...Sunny. Freezing level 15000 feet. Highs 75 to 85. East
winds around 3 mph shifting to the west in the afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows in
the lower 60s. Light winds becoming northeast around 3 mph after
midnight.
.TUESDAY...Sunny. Freezing level 14000 feet. Highs 73 to 83.
Northeast winds around 3 mph shifting to the west around 4 mph in
the afternoon.
.TUESDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows in
the lower 60s. Light winds.
.WEDNESDAY...Mostly sunny. Freezing level 13000 feet. Highs 71 to
81. Light winds.
.THURSDAY...Partly cloudy. Freezing level 13500 feet. Lows in the
upper 50s. Highs 66 to 76.
.FRIDAY...Mostly cloudy. Slight chance of rain. Freezing level
13000 feet. Lows in the mid 50s. Highs 60 to 70.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ661-232315-
East Portion of the Olympic Mountains-
750 AM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SUNDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......82-92...except 77-87 ridges.
* Min humidity..........20-32 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 3 to 5 mph.
* Ridges/upr slopes...Northeast winds 3 to 6 mph.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......East around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......59-69.
* Max humidity..........42-57 percent...except 37-52 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 2 to 4 mph.
* Ridges/upr slopes...North winds 3 to 6 mph.
* Mixing height.........400-800 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......81-91...except 75-85 ridges.
* Min humidity..........24-39 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...North winds around 4 mph shifting to the
northeast around 3 mph in the afternoon.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......North around 5 mph shifting to the east in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 15500 feet. Lows 59 to
69. Light winds becoming west around 5 mph after midnight.
.MONDAY...Sunny. Freezing level 15000 feet. Highs 78 to 88 valleys...
71 to 81 ridges. Northwest winds 3 to 5 mph.
.MONDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 57 to
67. Northwest winds 3 to 5 mph.
.TUESDAY...Mostly sunny. Freezing level 14000 feet. Highs 77 to
87 valleys...69 to 79 ridges. Northwest winds 3 to 5 mph.
.TUESDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows
57 to 67. Light winds.
.WEDNESDAY...Mostly sunny. Freezing level 13500 feet. Highs 75 to
85 valleys...67 to 77 ridges. West winds around 3 mph.
.THURSDAY...Partly cloudy. Freezing level 13500 feet. Lows 54 to 64.
Highs 70 to 80 valleys...62 to 72 ridges.
.FRIDAY...Partly cloudy. Slight chance of rain. Freezing level
13000 feet. Lows 50 to 60. Highs 64 to 74 valleys...57 to 67 ridges.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ653-232315-
Strait of Juan De Fuca and Northwest Interior Lowlands-
750 AM PDT Sat Aug 23 2025
...HEAT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......76-86.
* Min humidity..........34-49 percent.
* 20-foot winds.........North winds 4 to 7 mph.
* Mixing height.........500-800 ft AGL.
* Transport winds.......North 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......58-68.
* Max humidity..........55-70 percent.
* 20-foot winds.........Northwest winds 3 to 5 mph.
* Mixing height.........500-600 ft AGL.
* Transport winds.......Northwest around 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......76-86.
* Min humidity..........38-53 percent.
* 20-foot winds.........Northwest winds 3 to 6 mph.
* Mixing height.........500-800 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 57 to 67. Northwest winds around
3 mph in the evening becoming light.
.MONDAY...Sunny. Highs 77 to 87. Light winds becoming northwest
around 4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 56 to 66. West winds around
3 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs 75 to 85. Light winds becoming
northwest around 4 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 56 to 66. Light winds.
.WEDNESDAY...Mostly sunny. Highs 74 to 84. Light winds.
.THURSDAY...Partly cloudy. Lows in the upper 50s. Highs 72 to 82.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows in the upper
50s. Highs 69 to 79.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ654-232315-
Central and South Puget Sound Lowlands-
750 AM PDT Sat Aug 23 2025
...EXTREME HEAT WARNING IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......82-92.
* Min humidity..........24-39 percent.
* 20-foot winds.........North winds 5 to 8 mph.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......North around 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......60-70.
* Max humidity..........49-64 percent.
* 20-foot winds.........North winds 3 to 6 mph.
* Mixing height.........500-900 ft AGL.
* Transport winds.......North 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......82-92.
* Min humidity..........30-45 percent.
* 20-foot winds.........North winds 3 to 6 mph.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 59 to 69. North winds 3 to 5 mph.
.MONDAY...Mostly sunny. Highs 84 to 94. Light winds becoming north
around 4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. North winds
3 to 5 mph.
.TUESDAY...Mostly sunny. Highs 82 to 92. Light winds becoming
northwest around 4 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northwest
winds around 3 mph.
.WEDNESDAY...Mostly sunny. Highs 81 to 91. Southwest winds around
3 mph.
.THURSDAY...Partly cloudy. Lows around 60. Highs in the lower 80s.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows in the upper
50s. Highs in the upper 70s.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ655-232315-
Black Hills and Southwest Interior Lowlands-
750 AM PDT Sat Aug 23 2025
...EXTREME HEAT WARNING IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......90-100.
* Min humidity..........16-30 percent.
* 20-foot winds.........Northeast winds 3 to 6 mph.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......Northeast 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......60-70.
* Max humidity..........51-66 percent.
* 20-foot winds.........North winds around 3 mph in the evening
becoming light.
* Mixing height.........500-1100 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......87-97.
* Min humidity..........22-37 percent.
* 20-foot winds.........Light winds becoming north around 3 mph in
the afternoon.
* Mixing height.........900-1900 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the
north in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows 58 to 68. Northwest winds around
3 mph in the evening becoming light.
.MONDAY...Mostly sunny. Highs in the lower 90s. Light winds becoming
northwest around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 58 to 68. Northwest winds around
3 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs in the upper 80s. Light winds
becoming northwest around 3 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 57 to 67. Light winds.
.WEDNESDAY...Mostly sunny. Highs 83 to 93. Light winds.
.THURSDAY...Partly cloudy. Lows 54 to 64. Highs 79 to 89.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows in the upper
50s. Highs in the upper 70s.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ656-232315-
Northeast Puget Sound Lowlands Generally Below 1500 Feet-
750 AM PDT Sat Aug 23 2025
...EXTREME HEAT WARNING IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......87-97.
* Min humidity..........23-38 percent.
* 20-foot winds.........Northeast winds around 4 mph shifting to
the northwest around 3 mph in the afternoon.
* Mixing height.........1300-2300 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......61-71.
* Max humidity..........51-66 percent.
* 20-foot winds.........Northwest winds around 3 mph shifting to
the northeast after midnight.
* Mixing height.........900-1300 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......85-95.
* Min humidity..........24-39 percent.
* 20-foot winds.........Northeast winds around 3 mph shifting to
the west around 4 mph in the afternoon.
* Mixing height.........1100-2100 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the
northwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 60 to 70. Northwest winds around
3 mph shifting to the east after midnight.
.MONDAY...Sunny. Highs 85 to 95. East winds around 3 mph shifting to
the west around 4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 60 to 70. West winds around
3 mph shifting to the northeast after midnight.
.TUESDAY...Mostly sunny. Highs 83 to 93. Light winds becoming west
around 4 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 59 to 69. Light winds.
.WEDNESDAY...Mostly sunny. Highs 82 to 92. Light winds.
.THURSDAY...Partly cloudy. Lows 57 to 67. Highs 78 to 88.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows around 60.
Highs 73 to 83.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ657-232315-
Southeast Puget Sound Lowlands Generally Below 1500 Feet-
750 AM PDT Sat Aug 23 2025
...EXTREME HEAT WARNING IN EFFECT UNTIL 5 AM PDT TUESDAY...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......88-98.
* Min humidity..........22-37 percent.
* 20-foot winds.........Light winds becoming north around 4 mph in
the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......61-71.
* Max humidity..........49-64 percent.
* 20-foot winds.........North winds around 3 mph in the evening
becoming light.
* Mixing height.........500-1000 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......86-96.
* Min humidity..........26-40 percent.
* 20-foot winds.........Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the
northwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
around 3 mph in the evening becoming light.
.MONDAY...Mostly sunny. Highs around 90. Light winds becoming
northwest around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
around 3 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs in the upper 80s. Light winds
becoming northwest around 3 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. Light winds.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s. Light winds.
.THURSDAY...Partly cloudy. Lows in the lower 60s. Highs in the mid
80s.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows in the upper
50s. Highs in the upper 70s.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ658-232315-
West Slopes of the North Cascades Generally above 1500 Feet-
750 AM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY EVENING...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......85-95...except 77-87 ridges.
* Min humidity..........17-32 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 3 to 5 mph.
* Ridges/upr slopes...East winds around 7 mph shifting to the south
around 3 mph in the afternoon.
* Mixing height.........700 ft AGL increasing to 3300 ft AGL in the
afternoon.
* Transport winds.......East 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......61-71...except 58-68 ridges.
* Max humidity..........40-55 percent...except 32-43 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 3 to 5 mph.
* Ridges/upr slopes...East winds 3 to 7 mph.
* Mixing height.........500-1200 ft AGL.
* Transport winds.......Northeast 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......84-94...except 78-88 ridges.
* Min humidity..........21-36 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...East winds around 5 mph shifting to the west
around 4 mph in the afternoon.
* Mixing height.........500 ft AGL increasing to 3400 ft AGL in the
afternoon.
* Transport winds.......East around 5 mph shifting to the southwest
in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 14500 feet. Lows 59 to
69. West winds around 4 mph shifting to the east around 5 mph after
midnight.
.MONDAY...Sunny. Freezing level 14500 feet. Highs 82 to 92 valleys...
76 to 86 ridges. East winds around 5 mph shifting to the west around
4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 58 to
68. West winds around 4 mph shifting to the northeast around 5 mph
after midnight.
.TUESDAY...Mostly sunny. Freezing level 14000 feet. Highs 81 to
91 valleys...74 to 84 ridges. Northeast winds around 4 mph shifting
to the west in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows
57 to 67. North winds around 3 mph.
.WEDNESDAY...Mostly sunny. Freezing level 13500 feet. Highs 79 to
89 valleys...72 to 82 ridges. Southwest winds around 3 mph.
.THURSDAY...Partly cloudy. Freezing level 13500 feet. Lows 57 to
67 valleys...in the upper 50s ridges. Highs 74 to 84 valleys...66 to
76 ridges.
.FRIDAY...Partly cloudy. Slight chance of rain. Freezing level
13500 feet. Lows 54 to 64 valleys...in the mid 50s ridges. Highs
68 to 78 valleys...60 to 70 ridges.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
WAZ659-232315-
West Slopes of the Central Cascades Generally above 1500 Feet-
750 AM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY EVENING...
.Today...
* Sky/weather...........Mostly sunny.
* Max temperature.......87-97...except 78-88 ridges.
* Min humidity..........15-30 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph.
* Ridges/upr slopes...East winds 3 to 7 mph.
* Mixing height.........600 ft AGL increasing to 3400 ft AGL in the
afternoon.
* Transport winds.......East 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.TONIGHT...
* Sky/weather...........Partly cloudy. Haze in the evening.
* Min temperature.......60-70.
* Max humidity..........40-55 percent...except 31-46 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 2 to 4 mph.
* Ridges/upr slopes...East winds 3 to 6 mph.
* Mixing height.........400-1200 ft AGL.
* Transport winds.......East 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15500 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......86-96...except 78-88 ridges.
* Min humidity..........21-36 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...East winds around 4 mph shifting to the
northwest around 3 mph in the afternoon.
* Mixing height.........500 ft AGL increasing to 3200 ft AGL in the
afternoon.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........15000 Feet.
.SUNDAY NIGHT...Partly cloudy. Freezing level 15000 feet. Lows 61 to
71. Northwest winds around 3 mph shifting to the east after
midnight.
.MONDAY...Mostly sunny. Freezing level 14500 feet. Highs 82 to
92 valleys...75 to 85 ridges. East winds around 3 mph shifting to
the west around 4 mph in the afternoon.
.MONDAY NIGHT...Mostly cloudy. Freezing level 14500 feet. Lows 59 to
69. Northwest winds around 3 mph shifting to the northeast after
midnight.
.TUESDAY...Mostly sunny. Freezing level 14000 feet. Highs 81 to
91 valleys...73 to 83 ridges. East winds around 3 mph shifting to
the northwest around 4 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows
57 to 67. North winds around 3 mph.
.WEDNESDAY...Mostly sunny. Freezing level 13500 feet. Highs 78 to
88 valleys...71 to 81 ridges. Light winds.
.THURSDAY...Partly cloudy. Freezing level 13500 feet. Lows 55 to 65.
Highs 75 to 85 valleys...67 to 77 ridges.
.FRIDAY...Mostly cloudy. Slight chance of rain. Freezing level
13500 feet. Lows 51 to 61. Highs 69 to 79 valleys...61 to 71 ridges.
.8 TO 14 day Outlook for Aug 30 - Sep 05, 2025
Near normal temperatures and above normal precipitation.
$$
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