Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
151
FNUS55 KREV 181241
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
441 AM PST Tue Nov 18 2025
.DISCUSSION...
Precipitation chances look to end for most of the region by the late
morning except for southern Mono and Mineral Counties where they may
linger into tonight. After a break from precipitation on Wednesday,
more chances for rain and mountain snow are possible on Thursday into
Friday followed by another dry period over the 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
NVZ420-190015-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Mostly cloudy then becoming partly cloudy.
Slight chance of rain and snow in the morning.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-55.
* Mid Slope........40-50.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........57-67%.
* Mid Slope........66-76%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Northeast winds 10 to 15 mph with gusts to 25
mph.
* Chc Wetting Rain...5%.
* Mixing Height......700-1200 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..........22-32.
* Mid Slope........27-36.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........88-98%.
* Mid Slope........78-88%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming southeast 10 to 15 mph
after midnight.
* Chc Wetting Rain...0%.
* Mixing Height......900-1400 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.WEDNESDAY...
* Sky/Weather........Partly cloudy.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........45-54.
* Mid Slope........41-51.
* Min Humidity.......
* Valleys..........55-65%.
* Mid Slope........61-71%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming south 10 to 15 mph in the
late morning and early afternoon, then
becoming light late in the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1300-1800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.Extended...
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of rain after
midnight. Lows 23-33. Downslope 2 to 5 mph.
.THURSDAY...Mostly cloudy. Chance of rain and snow. Highs 41-48.
Lows 23-33. Slope winds.
.FRIDAY THROUGH SATURDAY...Partly cloudy. Highs 44-54. Lows 20-30.
Slope winds.
.SUNDAY...Partly cloudy. Highs 48-58. Lows 23-33.
.MONDAY...Partly cloudy. Slight chance of rain. Highs 48-58.
$$
NVZ421-190015-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Mostly cloudy. Chance of snow and rain.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........38-48.
* Mid Slope........33-43.
* 24 hr trend......4 degrees cooler.
* Min Humidity.......
* Valleys..........68-78%.
* Mid Slope........70-80%.
* 24 hr trend......18% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming northeast 7 to 12
mph in the afternoon.
* Ridge Top........Northeast winds 10 to 20 mph with gusts to 35
mph.
* Chc Wetting Rain...20%.
* Mixing Height......900-1400 ft agl.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Mostly cloudy then becoming partly cloudy.
Slight chance of rain and snow.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........17-27.
* Mid Slope........26-36.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........84-94%.
* Mid Slope........78-88%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northeast winds 15 to 20 mph shifting to the
east 10 to 15 mph in the late evening and
overnight. Gusts to 30 mph until early
morning.
* Chc Wetting Rain...10%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.WEDNESDAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........42-52.
* Mid Slope........35-45.
* Min Humidity.......
* Valleys..........58-68%.
* Mid Slope........58-68%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming east 10 to 15 mph in the
afternoon.
* Chc Wetting Rain...5%.
* Mixing Height......600-1000 ft agl increasing to 1300-1800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of snow after
midnight. Lows 16-26. Downslope 2 to 5 mph.
.THURSDAY...Cloudy. Chance of snow and rain. Highs 36-46. Lows
16-26. Slope winds.
.FRIDAY...Mostly cloudy. Slight chance of snow. Highs 37-47. Lows
15-25. Slope winds.
.SATURDAY...Partly cloudy. Highs 42-51. Lows 15-25. Slope winds.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 48-58. Lows 20-30.
$$
CAZ272-190015-
Greater Lake Tahoe and Truckee Area-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Mostly cloudy then becoming partly cloudy.
Slight chance of rain and snow in the morning.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........37-42.
* Mid Slope........34-44.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........75-85%.
* Mid Slope........75-85%.
* 24 hr trend......7% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph with gusts to 35 mph.
* Chc Wetting Rain...5%.
* Mixing Height......700-1200 ft agl increasing to 1200-1700 ft agl
in the afternoon.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........19-29.
* Mid Slope........23-33.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........94-100%.
* Mid Slope........91-100%.
* 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......900-1400 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Fair.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........41-47.
* Mid Slope........36-46.
* Min Humidity.......
* Valleys..........70-80%.
* Mid Slope........72-82%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-1000 ft agl increasing to 1200-1700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Chance of snow and rain after midnight. Lows 21-31.
Downslope 2 to 5 mph.
.THURSDAY...Snow and rain likely. Highs 34-40. Lows 20-30. Slope
winds.
.FRIDAY...Partly cloudy. Highs 36-43. Lows 19-29. Slope winds.
.SATURDAY...Partly cloudy. Highs 41-49. Lows 19-29. Slope winds.
.SUNDAY...Partly cloudy. Highs 47-54. Lows 22-32.
.MONDAY...Partly cloudy. Slight chance of rain and snow. Highs
46-53.
$$
NVZ423-190015-
West Humboldt Basin in Pershing County-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........53-59.
* Mid Slope........48-58.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........36-46%.
* 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 2400-3400 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to fair in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........26-36.
* Mid Slope........31-39.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........82-92%.
* Mid Slope........65-75%.
* 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......800-1300 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........51-57.
* Mid Slope........46-56.
* Min Humidity.......
* Valleys..........44-54%.
* Mid Slope........50-60%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 1600-2100 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.WEDNESDAY NIGHT...Clear. Lows 25-35. Downslope 2 to 5 mph.
.THURSDAY...Mostly cloudy. Chance of rain. Highs 47-53. Lows 24-34.
Slope winds.
.FRIDAY...Clear. Highs 49-55. Lows 22-32. Slope winds.
.SATURDAY...Partly cloudy. Highs 49-55. Lows 22-32. Slope winds.
.SUNDAY...Partly cloudy. Highs 50-56. Lows 22-32.
.MONDAY...Partly cloudy. Slight chance of rain. Highs 49-55.
$$
NVZ429-190015-
Lahontan Basin including Churchill and Eastern Mineral Counties-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Mostly cloudy then becoming partly cloudy.
Chance of snow in the morning. Chance of rain
.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-57.
* Mid Slope........43-53.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........44-54%.
* Mid Slope........41-51%.
* 24 hr trend......5% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...20%.
* Mixing Height......600-1100 ft agl increasing to 2200-3200 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Partly cloudy. Chance of rain.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........26-36.
* Mid Slope........29-39.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........84-94%.
* Mid Slope........76-86%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming southeast 10 to 15 mph with
gusts to 20 mph in the late evening and
overnight.
* Chc Wetting Rain...10%.
* Mixing Height......1100-1600 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Fair.
.WEDNESDAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-57.
* Mid Slope........42-52.
* Min Humidity.......
* Valleys..........47-57%.
* Mid Slope........48-58%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph in the afternoon.
* Chc Wetting Rain...5%.
* Mixing Height......600-800 ft agl increasing to 1700-2700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to fair in the afternoon.
.Extended...
.WEDNESDAY NIGHT...Clear. Lows 25-35. Downslope 2 to 5 mph becoming
south 7 to 12 mph after midnight.
.THURSDAY...Mostly cloudy. Chance of rain and snow. Highs 41-51.
Lows 24-34. Slope winds.
.FRIDAY...Partly cloudy. Highs 42-52. Lows 21-31. Slope winds.
.SATURDAY...Partly cloudy. Highs 44-54. Lows 21-31. Slope winds.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 48-58. Lows 21-31.
$$
CAZ270-278-NVZ458-190015-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........47-57.
* Mid Slope........46-52.
* 24 hr trend......5 degrees warmer.
* Min Humidity.......
* Valleys..........57-67%.
* Mid Slope........56-66%.
* 24 hr trend......4% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph until late afternoon
becoming light.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 2100-3100 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear then becoming partly cloudy.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........23-33.
* Mid Slope........26-36.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........87-97%.
* Mid Slope........82-92%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming west 10 to 15 mph after
midnight.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.WEDNESDAY...
* Sky/Weather........Partly cloudy.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........45-55.
* Mid Slope........43-51.
* Min Humidity.......
* Valleys..........57-67%.
* Mid Slope........57-67%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Southeast winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......600-800 ft agl increasing to 1400-1900 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Chance of rain and snow after midnight. Lows 25-35.
Downslope 2 to 5 mph.
.THURSDAY...Mostly cloudy. Chance of rain and snow. Highs 40-50.
Lows 20-30. Slope winds.
.FRIDAY...Clear. Highs 44-54. Lows 20-30. Slope winds.
.SATURDAY...Partly cloudy. Highs 46-56. Lows 21-31. Slope winds.
.SUNDAY...Partly cloudy. Highs 47-57. Lows 22-32.
.MONDAY...Mostly cloudy. Slight chance of rain and snow. Highs
45-55.
$$
CAZ271-190015-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Mostly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........45-55.
* Mid Slope........42-52.
* 24 hr trend......6 degrees warmer.
* Min Humidity.......
* Valleys..........62-72%.
* Mid Slope........67-77%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........East winds 10 to 15 mph. Gusts to 30 mph in the
morning.
* Chc Wetting Rain...5%.
* Mixing Height......600-1100 ft agl increasing to 1700-2700 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..........19-29.
* Mid Slope........24-34.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........92-100%.
* Mid Slope........90-100%.
* 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......600-1100 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.WEDNESDAY...
* Sky/Weather........Sunny then becoming partly cloudy.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........43-51.
* Mid Slope........41-49.
* Min Humidity.......
* Valleys..........65-75%.
* Mid Slope........65-75%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 1200-1700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.Extended...
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain and snow after
midnight. Lows 22-32. Downslope 2 to 5 mph.
.THURSDAY...Rain and snow likely. Highs 38-46. Lows 19-29. Slope
winds.
.FRIDAY THROUGH SATURDAY...Clear. Highs 45-55. Lows 18-28. Slope
winds.
.SUNDAY...Partly cloudy. Highs 50-58. Lows 21-31.
.MONDAY...Mostly cloudy. Slight chance of rain and snow. Highs
45-55.
$$
CAZ274-190015-
Southern Mono County-
441 AM PST Tue Nov 18 2025
.TODAY...
* Sky/Weather........Rain likely in the morning. Chance of snow.
Chance of rain in the afternoon.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........34-44.
* Mid Slope........31-41.
* 24 hr trend......4 degrees cooler.
* Min Humidity.......
* Valleys..........70-80%.
* Mid Slope........76-86%.
* 24 hr trend......13% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming northeast 7 to 12
mph in the afternoon.
* Ridge Top........Northeast winds 10 to 20 mph with gusts to 30
mph.
* Chc Wetting Rain...45%.
* Mixing Height......900-1400 ft agl.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Good.
.TONIGHT...
* Sky/Weather........Mostly cloudy. Chance of snow and rain.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........18-28.
* Mid Slope........19-29.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........91-100%.
* Mid Slope........86-96%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northeast winds 10 to 15 mph with gusts to 25
mph.
* Chc Wetting Rain...25%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Northeast 10 to 15 mph.
* Ventilation........Fair.
.WEDNESDAY...
* Sky/Weather........Mostly cloudy then becoming partly cloudy.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........36-46.
* Mid Slope........32-42.
* Min Humidity.......
* Valleys..........60-70%.
* Mid Slope........63-73%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming southwest 10 to 15 mph in
the late morning and afternoon.
* Chc Wetting Rain...5%.
* Mixing Height......700-1200 ft agl increasing to 1300-1800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.WEDNESDAY NIGHT...Partly cloudy. Lows 14-24. Downslope 2 to 5 mph.
.THURSDAY...Cloudy. Chance of snow and rain. Highs 34-44. Lows
14-24. Slope winds.
.FRIDAY...Mostly cloudy. Slight chance of snow. Highs 33-43. Lows
15-25. Slope winds.
.SATURDAY...Partly cloudy. Highs 37-47. Lows 15-25. Slope winds.
.SUNDAY...Partly cloudy. Highs 42-52. Lows 19-29.
.MONDAY...Sunny. Highs 44-54.
$$
.8 to 14 day outlook for (Tue Nov 25 through Mon Dec 1)
Below normal temperatures and Above normal precipitation.
=
$$
http://weather.gov/reno