Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
450
FNUS55 KREV 170915
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
215 AM PDT Fri Oct 17 2025
.DISCUSSION...
High pressure will support a warming and drying trend into the weekend.
Winds remain light through Saturday, but will become breezy Sunday
afternoon. Showers are possible in the Sierra south of Tahoe on Tuesday,
but dry conditions prevail much of next week. A Pacific storm may bring
rain, mountain snow, and gusty winds late next week.
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
NVZ420-180015-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........59-69.
* Mid Slope........56-66.
* 24 hr trend......7 degrees warmer.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........23-33%.
* 24 hr trend......9% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph in the morning.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl increasing to 1700-2700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........35-45.
* Mid Slope........37-46.
* 24 hr trend......5 degrees warmer.
* Max Humidity.......
* Valleys..........54-64%.
* Mid Slope........40-50%.
* 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......1200-1700 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........64-74.
* Mid Slope........62-72.
* Min Humidity.......
* Valleys..........22-32%.
* Mid Slope........23-33%.
* 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 1400-1900 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SATURDAY NIGHT...Clear. Lows 36-46. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 66-76. Lows 35-45. West winds 10 to 15 mph.
.MONDAY...Clear. Highs 60-70. Lows 35-45. Slope winds.
.TUESDAY...Partly cloudy. Highs 61-71. Lows 35-45. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 61-71. Lows
35-45.
$$
NVZ421-180015-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........57-67.
* Mid Slope........51-61.
* 24 hr trend......9 degrees warmer.
* Min Humidity.......
* Valleys..........19-29%.
* Mid Slope........19-29%.
* 24 hr trend......22% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Northeast winds 10 to 15 mph. Gusts to 30 mph
until late afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl increasing to 1500-2500 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........30-40.
* Mid Slope........37-47.
* 24 hr trend......8 degrees warmer.
* Max Humidity.......
* Valleys..........48-58%.
* Mid Slope........34-44%.
* 24 hr trend......14% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........North winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1100-1600 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........64-74.
* Mid Slope........59-69.
* Min Humidity.......
* Valleys..........18-28%.
* Mid Slope........18-28%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........South winds 10 to 15 mph until late afternoon
becoming light.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 1500-2500 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SATURDAY NIGHT...Clear. Lows 30-40. Downslope 2 to 5 mph becoming
southwest 7 to 12 mph after midnight.
.SUNDAY...Clear. Highs 67-77. Lows 30-40. Slope winds.
.MONDAY...Clear. Highs 62-72. Lows 30-40. Slope winds.
.TUESDAY...Partly cloudy. Highs 62-72. Lows 30-40. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 61-71. Lows
30-40.
$$
CAZ272-180015-
Greater Lake Tahoe and Truckee Area-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Partly cloudy.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........56-64.
* Mid Slope........51-61.
* 24 hr trend......8 degrees warmer.
* Min Humidity.......
* Valleys..........25-35%.
* Mid Slope........25-35%.
* 24 hr trend......20% 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......600-1000 ft agl increasing to 1500-2000 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........31-41.
* Mid Slope........34-44.
* 24 hr trend......7 degrees warmer.
* Max Humidity.......
* Valleys..........59-69%.
* Mid Slope........44-54%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming northeast 10 to 15 mph in
the late evening and overnight.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........61-70.
* Mid Slope........57-67.
* Min Humidity.......
* Valleys..........28-38%.
* Mid Slope........28-38%.
* 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.
.Extended...
.SATURDAY NIGHT...Clear. Lows 32-42. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 60-67. Lows 30-40. Slope winds.
.MONDAY...Clear. Highs 58-68. Lows 30-40. Slope winds.
.TUESDAY...Partly cloudy. Highs 59-66. Lows 30-40. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 56-65. Lows
30-40.
$$
NVZ423-180015-
West Humboldt Basin in Pershing County-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........60-70.
* Mid Slope........56-66.
* 24 hr trend......5 degrees warmer.
* Min Humidity.......
* Valleys..........23-30%.
* Mid Slope........23-33%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph until late
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-1000 ft agl increasing to 2000-3000 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..........33-43.
* Mid Slope........37-46.
* 24 hr trend......4 degrees warmer.
* Max Humidity.......
* Valleys..........54-64%.
* Mid Slope........39-49%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Southwest winds 10 to 15 mph. Gusts to 25 mph
until early morning.
* Chc Wetting Rain...0%.
* Mixing Height......1300-1800 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Fair.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........67-73.
* Mid Slope........62-72.
* Min Humidity.......
* Valleys..........19-29%.
* Mid Slope........22-30%.
* 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 1400-1900 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.Extended...
.SATURDAY NIGHT...Clear. Lows 35-45. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 70-76. Lows 32-42. West winds 10 to 15 mph.
.MONDAY...Clear. Highs 63-71. Lows 32-42. Slope winds.
.TUESDAY...Partly cloudy. Highs 65-71. Lows 33-43. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 64-72. Lows
34-44.
$$
NVZ429-180015-
Lahontan Basin including Churchill and Eastern Mineral Counties-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........59-69.
* Mid Slope........55-65.
* 24 hr trend......5 degrees warmer.
* Min Humidity.......
* Valleys..........18-28%.
* Mid Slope........20-30%.
* 24 hr trend......11% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........North winds 10 to 15 mph. Gusts to 25 mph in the
morning.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl increasing to 2000-3000 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........35-45.
* Mid Slope........37-47.
* 24 hr trend......5 degrees warmer.
* Max Humidity.......
* Valleys..........52-62%.
* Mid Slope........34-44%.
* 24 hr trend......17% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming west 10 to 15 mph in the
late evening and overnight.
* Chc Wetting Rain...0%.
* Mixing Height......1200-1700 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Marginal.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........66-74.
* Mid Slope........62-72.
* Min Humidity.......
* Valleys..........17-27%.
* Mid Slope........20-28%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Southeast winds 10 to 15 mph until late
afternoon becoming light.
* 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...
.SATURDAY NIGHT...Clear. Lows 37-47. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 71-79. Lows 36-46. Slope winds.
.MONDAY...Clear. Highs 63-73. Lows 36-46. Slope winds.
.TUESDAY...Partly cloudy. Highs 64-74. Lows 36-46. Slope winds.
.WEDNESDAY...Clear. Highs 62-72. Lows 36-46.
.THURSDAY...Partly cloudy. Highs 65-75.
$$
CAZ270-278-NVZ458-180015-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Mostly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........61-71.
* Mid Slope........60-66.
* 24 hr trend......7 degrees warmer.
* Min Humidity.......
* Valleys..........18-28%.
* Mid Slope........21-29%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming west 10 to 15 mph in the
late morning and afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-900 ft agl increasing to 2800-3800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Poor increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........30-40.
* Mid Slope........35-45.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........62-72%.
* Mid Slope........47-57%.
* 24 hr trend......8% wetter.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northwest winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1600-2600 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Good decreasing to poor after midnight.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........65-75.
* Mid Slope........63-71.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........20-30%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........South winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 1600-2600 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Poor increasing to fair in the afternoon.
.Extended...
.SATURDAY NIGHT...Clear. Lows 33-43. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 65-75. Lows 25-35. West winds 10 to 15 mph.
.MONDAY...Clear. Highs 59-69. Lows 25-35. Slope winds.
.TUESDAY...Partly cloudy. Highs 61-71. Lows 30-40. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 61-71. Lows
30-40.
$$
CAZ271-180015-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........62-70.
* Mid Slope........60-68.
* 24 hr trend......8 degrees warmer.
* Min Humidity.......
* Valleys..........22-32%.
* Mid Slope........24-32%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph in the morning.
* Chc Wetting Rain...0%.
* Mixing Height......600-1000 ft agl increasing to 2600-3600 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........29-39.
* Mid Slope........34-44.
* 24 hr trend......4 degrees warmer.
* Max Humidity.......
* Valleys..........69-79%.
* Mid Slope........50-60%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........North winds 10 to 15 mph until early morning
becoming light.
* Chc Wetting Rain...0%.
* Mixing Height......1600-2100 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Fair decreasing to poor after midnight.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........67-75.
* Mid Slope........64-72.
* Min Humidity.......
* Valleys..........24-34%.
* Mid Slope........25-35%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Southeast winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......600-700 ft agl increasing to 1900-2900 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SATURDAY NIGHT...Clear. Lows 30-40. Downslope 2 to 5 mph.
.SUNDAY...Clear. Highs 62-72. Lows 27-37. Southwest winds 10 to
15 mph.
.MONDAY...Clear. Highs 61-71. Lows 27-37. Slope winds.
.TUESDAY...Partly cloudy. Highs 61-71. Lows 28-38. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 59-69. Lows
28-38.
$$
CAZ274-180015-
Southern Mono County-
215 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........53-63.
* Mid Slope........49-59.
* 24 hr trend......9 degrees warmer.
* Min Humidity.......
* Valleys..........19-29%.
* Mid Slope........19-29%.
* 24 hr trend......23% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........North winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl increasing to 1600-2600 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Good.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........28-38.
* Mid Slope........29-39.
* 24 hr trend......8 degrees warmer.
* Max Humidity.......
* Valleys..........54-64%.
* Mid Slope........40-50%.
* 24 hr trend......10% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northwest winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1300-1800 ft agl decreasing to 600-1000 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Fair.
.SATURDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........60-70.
* Mid Slope........56-66.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........22-32%.
* 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...0%.
* Mixing Height......600-1000 ft agl increasing to 1600-2100 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair.
.Extended...
.SATURDAY NIGHT...Clear. Lows 30-40. Downslope 2 to 5 mph becoming
southwest 7 to 12 mph after midnight.
.SUNDAY...Clear. Highs 62-72. Lows 30-40. Slope winds.
.MONDAY...Clear. Highs 60-70. Lows 30-40. Slope winds.
.TUESDAY...Partly cloudy. Highs 58-68. Lows 29-39. Slope winds.
.WEDNESDAY...Partly cloudy. Highs 55-65. Lows 29-39.
.THURSDAY...Sunny. Highs 58-68.
$$
.8 to 14 day outlook for (Fri Oct 24 through Thu Oct 30)
Near normal temperatures and Above normal precipitation.
=
$$
http://weather.gov/reno