Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
360
FNUS55 KREV 221222
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
422 AM PST Sat Nov 22 2025
.DISCUSSION...
High pressure will yield light winds and valley inversions today
with poor to marginal ventilation expected. A brush-by system may
increase ridgetop winds late Sunday-Monday, but ventilation will only
be fair during this timeframe. High pressure will build next week
resulting in light winds, dry conditions, and poor mixing/ventilation
until a system provides the next chance of precipitation and
increasing winds by next weekend.
Note: Thunderstorms imply gusty and erratic winds.
Note: Mixing Heights are in feet above ground level of the valley floors.
Note: Please see operating plan for detailed zone descriptions
https://www.weather.gov/wrh/fire?wfo=rev
NVZ420-230015-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-53.
* Mid Slope........41-51.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........53-63%.
* Mid Slope........59-69%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl increasing to 1500-2000 ft agl
in the afternoon.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Marginal increasing to fair in the afternoon.
.TONIGHT...
* Sky/Weather........Clear then becoming partly cloudy.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........20-30.
* Mid Slope........25-34.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........84-94%.
* Mid Slope........68-78%.
* 24 hr trend......4% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........48-58.
* Mid Slope........46-56.
* Min Humidity.......
* Valleys..........41-51%.
* Mid Slope........41-51%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph late in the
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SUNDAY NIGHT...Clear. Lows 21-31. Downslope 2 to 5 mph.
.MONDAY...Clear. Highs 43-53. Lows 20-30. Slope winds.
.TUESDAY...Partly cloudy. Highs 42-52. Lows 20-30. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 49-59. Lows 23-33. Slope winds.
.THANKSGIVING DAY...Partly cloudy. Highs 50-60. Lows 26-36.
.FRIDAY...Mostly cloudy. Highs 48-58.
$$
NVZ421-230015-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........41-51.
* Mid Slope........35-45.
* 24 hr trend......5 degrees warmer.
* Min Humidity.......
* Valleys..........57-67%.
* Mid Slope........59-69%.
* 24 hr trend......11% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph. Gusts to 30 mph until
late afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl increasing to 1300-1800 ft agl
in the afternoon.
* Transport Winds....Southeast 10 to 15 mph.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........16-26.
* Mid Slope........25-35.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........77-87%.
* Mid Slope........62-72%.
* 24 hr trend......11% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming southeast 10 to 15 mph in
the late evening and overnight.
* Chc Wetting Rain...0%.
* Mixing Height......800 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........48-57.
* Mid Slope........42-52.
* Min Humidity.......
* Valleys..........40-50%.
* Mid Slope........42-52%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........West winds 10 to 15 mph. Gusts to 25 mph in the
late morning and afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1000-1500 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SUNDAY NIGHT...Clear. Lows 17-27. Downslope 2 to 5 mph becoming
southwest 7 to 12 mph in the late evening and early morning, then
becoming downslope 2 to 5 mph in the morning.
.MONDAY...Clear. Highs 44-54. Lows 16-26. Slope winds.
.TUESDAY...Partly cloudy. Highs 43-53. Lows 16-26. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 51-61. Lows 21-31. Slope winds.
.THANKSGIVING DAY THROUGH FRIDAY...Partly cloudy. Highs 51-61. Lows
25-35.
$$
CAZ272-230015-
Greater Lake Tahoe and Truckee Area-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........41-47.
* Mid Slope........36-46.
* 24 hr trend......5 degrees warmer.
* Min Humidity.......
* Valleys..........59-69%.
* Mid Slope........59-69%.
* 24 hr trend......9% drier.
* 20-Foot Winds......
* Valleys/Slope....East winds 7 to 12 mph until late afternoon
becoming upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph. Gusts to 30 mph until
late afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear then becoming partly cloudy.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........19-29.
* Mid Slope........21-31.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........84-94%.
* Mid Slope........67-77%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......800 ft agl.
* Transport Winds....Southeast 10 to 15 mph.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........48-54.
* Mid Slope........42-52.
* Min Humidity.......
* Valleys..........45-55%.
* Mid Slope........43-53%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........West winds 10 to 15 mph with gusts to 25 mph.
* Chc Wetting Rain...0%.
* Mixing Height......600-800 ft agl increasing to 1100-1600 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Poor increasing to fair in the afternoon.
.Extended...
.SUNDAY NIGHT...Clear. Lows 18-28. Downslope 2 to 5 mph becoming
southwest 7 to 12 mph after midnight.
.MONDAY...Clear. Highs 44-50. Lows 18-28. Slope winds.
.TUESDAY...Partly cloudy. Highs 42-51. Lows 18-28. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 50-57. Lows 23-33. Slope winds.
.THANKSGIVING DAY...Partly cloudy. Highs 50-57. Lows 26-36.
.FRIDAY...Mostly cloudy. Slight chance of rain and snow. Highs
45-51.
$$
NVZ423-230015-
West Humboldt Basin in Pershing County-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........49-55.
* Mid Slope........46-54.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........37-47%.
* Mid Slope........43-53%.
* 24 hr trend......4% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-800 ft agl increasing to 1600-2600 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........21-31.
* Mid Slope........26-34.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........81-91%.
* Mid Slope........59-69%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......800 ft agl.
* Transport Winds....Light winds.
* Ventilation........Poor.
.SUNDAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........48-54.
* Mid Slope........44-54.
* Min Humidity.......
* Valleys..........40-50%.
* Mid Slope........46-56%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph late in the
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-800 ft agl increasing to 900-1400 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Poor increasing to fair in the afternoon.
.Extended...
.SUNDAY NIGHT...Clear. Lows 21-31. Downslope 2 to 5 mph.
.MONDAY...Partly cloudy. Highs 43-48. Lows 16-26. Slope winds.
.TUESDAY...Partly cloudy. Highs 43-49. Lows 16-26. Slope winds.
.WEDNESDAY...Mostly cloudy. Highs 48-54. Lows 21-31. Slope winds.
.THANKSGIVING DAY...Partly cloudy. Highs 52-58. Lows 24-34.
.FRIDAY...Mostly cloudy. Highs 50-56.
$$
NVZ429-230015-
Lahontan Basin including Churchill and Eastern Mineral Counties-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........45-55.
* Mid Slope........42-52.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........47-57%.
* Mid Slope........41-51%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1700-2700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........21-31.
* Mid Slope........25-35.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........80-90%.
* Mid Slope........68-78%.
* 24 hr trend......4% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming southeast 10 to 15 mph in
the late evening and overnight.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........48-56.
* Mid Slope........45-55.
* Min Humidity.......
* Valleys..........42-52%.
* Mid Slope........40-50%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 25 mph late in the
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 900-1400 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.Extended...
.SUNDAY NIGHT...Clear. Lows 21-31. Downslope 2 to 5 mph.
.MONDAY...Clear. Highs 44-52. Lows 17-27. Slope winds.
.TUESDAY...Partly cloudy. Highs 42-50. Lows 17-27. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 48-58. Lows 18-28. Slope winds.
.THANKSGIVING DAY...Partly cloudy. Highs 50-60. Lows 22-32.
.FRIDAY...Mostly cloudy. Highs 50-60.
$$
CAZ270-278-NVZ458-230015-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........44-54.
* Mid Slope........43-51.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........45-55%.
* Mid Slope........43-53%.
* 24 hr trend......7% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1500-2000 ft agl
in the afternoon.
* Transport Winds....Southeast 10 to 15 mph.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear then becoming partly cloudy.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........21-31.
* Mid Slope........24-34.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........81-91%.
* Mid Slope........70-80%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......800 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-57.
* Mid Slope........46-54.
* Min Humidity.......
* Valleys..........34-44%.
* Mid Slope........35-45%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming west 10 to 15 mph late in
the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to fair in the afternoon.
.Extended...
.SUNDAY NIGHT...Clear. Lows 20-30. Downslope 2 to 5 mph.
.MONDAY...Partly cloudy. Highs 40-50. Lows 16-26. Slope winds.
.TUESDAY...Partly cloudy. Highs 41-51. Lows 16-26. Slope winds.
.WEDNESDAY...Mostly cloudy. Highs 46-56. Lows 21-31. Slope winds.
.THANKSGIVING DAY...Mostly cloudy. Highs 48-58. Lows 24-34.
.FRIDAY...Mostly cloudy. Slight chance of rain and snow. Highs
44-54.
$$
CAZ271-230015-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........46-56.
* Mid Slope........43-53.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........43-53%.
* Mid Slope........46-56%.
* 24 hr trend......10% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph. Gusts to 20 mph in the
morning.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1400-1900 ft agl
in the afternoon.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Fair increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........18-28.
* Mid Slope........24-34.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........80-90%.
* Mid Slope........70-80%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......800 ft agl.
* Transport Winds....Southeast 10 to 15 mph.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........49-57.
* Mid Slope........48-56.
* Min Humidity.......
* Valleys..........36-46%.
* Mid Slope........35-45%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Southwest winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 1200-1700 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Poor increasing to good in the afternoon.
.Extended...
.SUNDAY NIGHT...Clear. Lows 17-27. Downslope 2 to 5 mph.
.MONDAY...Clear. Highs 42-52. Lows 17-27. Slope winds.
.TUESDAY...Partly cloudy. Highs 45-53. Lows 17-27. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 49-59. Lows 21-31. Slope winds.
.THANKSGIVING DAY...Partly cloudy. Highs 51-59. Lows 24-34.
.FRIDAY...Mostly cloudy. Slight chance of rain and snow. Highs
43-53.
$$
CAZ274-230015-
Southern Mono County-
422 AM PST Sat Nov 22 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........36-46.
* Mid Slope........32-42.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........58-68%.
* Mid Slope........61-71%.
* 24 hr trend......7% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Northeast winds 10 to 15 mph with gusts to 30
mph.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl increasing to 1300-1800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........15-25.
* Mid Slope........16-26.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........83-93%.
* Mid Slope........71-81%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming east 10 to 15 mph in the
late evening and early morning, then becoming
light in the morning.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SUNDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........43-51.
* Mid Slope........39-49.
* Min Humidity.......
* Valleys..........44-54%.
* Mid Slope........45-55%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........West winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.Extended...
.SUNDAY NIGHT...Clear. Lows 18-28. Downslope 2 to 5 mph becoming
west 7 to 12 mph in the late evening and overnight.
.MONDAY...Clear. Highs 42-52. Lows 17-27. Slope winds.
.TUESDAY...Partly cloudy. Highs 42-52. Lows 17-27. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 47-57. Lows 23-33. Slope winds.
.THANKSGIVING DAY THROUGH FRIDAY...Partly cloudy. Highs 47-57. Lows
25-35.
$$
.8 to 14 day outlook for (Sat Nov 29 through Fri Dec 5)
Below normal temperatures and Near normal precipitation.
=
$$
http://weather.gov/reno