Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
379
FNUS55 KREV 280843
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
143 AM PDT Thu Aug 28 2025
.DISCUSSION...
Thunderstorm activity decreases through the weekend with best chances
east of US-95 and in the Mono-S.Lyon-Mineral County vicinity each
afternoon. Lower daytime humidity and poor overnight recoveries in
western Nevada return this weekend and continue into next week. The
potential of thunderstorms and new lightning ignitions increases
early 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
NVZ420-290015-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........76-86.
* Mid Slope........74-84.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........12-22%.
* Mid Slope........18-28%.
* 24 hr trend......9% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1200-1700 ft agl increasing to 7700-8700 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..........48-58.
* Mid Slope........52-62.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........44-54%.
* Mid Slope........32-42%.
* 24 hr trend......18% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......4800-5800 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Very good decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........78-88.
* Mid Slope........74-84.
* Min Humidity.......
* Valleys..........12-22%.
* Mid Slope........16-26%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........West winds 10 to 15 mph shifting to the
northeast in the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl increasing to 5700-6700 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Partly cloudy in the evening then clearing. Lows
49-59. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 79-89. Lows 49-59. Slope winds.
.SUNDAY...Clear. Highs 81-91. Lows 51-61. Slope winds.
.LABOR DAY...Mostly clear. Slight chance of showers. Highs 81-91. Lows
51-61. Slope winds.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Slight chance of showers. Highs
81-91. Lows 51-61.
$$
NVZ421-290015-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Sunny. Patchy smoke in the afternoon. Slight
chance of thunderstorms in the afternoon.
* Chance of Thunder..20%.
* Max Temperature....
* Valleys..........73-83.
* Mid Slope........66-76.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........22-32%.
* 24 hr trend......12% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1600-2600 ft agl increasing to 8100-9100 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Partly cloudy then becoming clear. Slight
chance of showers in the evening.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........39-49.
* Mid Slope........52-62.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........61-71%.
* Mid Slope........39-49%.
* 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
after midnight.
* Chc Wetting Rain...5%.
* Mixing Height......4300-5300 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Very good decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Sunny then becoming partly cloudy. Slight
chance of thunderstorms in the afternoon.
* Chance of Thunder..10%.
* Max Temperature....
* Valleys..........73-83.
* Mid Slope........67-77.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........22-32%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming north 10 to 15 mph.
* Chc Wetting Rain...5%.
* Mixing Height......1200-1700 ft agl increasing to 6500-7500 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Partly cloudy in the evening then clearing. Lows
40-50. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 77-87. Lows 40-50. Slope winds.
.SUNDAY...Clear. Highs 79-89. Lows 43-53. Slope winds.
.LABOR DAY...Mostly clear. Slight chance of showers. Highs 79-89. Lows
42-52. Slope winds.
.TUESDAY...Mostly clear. Slight chance of showers. Highs 78-88. Lows 42-52.
.WEDNESDAY...Sunny. Chance of showers and a slight chance of
thunderstorms. Highs 78-88.
$$
CAZ272-290015-
Greater Lake Tahoe and Truckee Area-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........69-79.
* Mid Slope........67-77.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........19-29%.
* Mid Slope........20-30%.
* 24 hr trend......18% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1400-1900 ft agl increasing to 7200-8200 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..........41-51.
* Mid Slope........46-56.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........64-74%.
* Mid Slope........39-49%.
* 24 hr trend......9% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......4300-5300 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....Northwest 10 to 15 mph.
* Ventilation........Very good decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........68-78.
* Mid Slope........67-77.
* Min Humidity.......
* Valleys..........25-35%.
* Mid Slope........26-36%.
* 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...5%.
* Mixing Height......800-1300 ft agl increasing to 5200-6200 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Partly cloudy in the evening then becoming clear.
Lows 42-52. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 71-81. Lows 42-52. Slope winds.
.SUNDAY...Partly cloudy. Highs 71-81. Lows 44-54. Slope winds.
.LABOR DAY...Clear. Highs 71-81. Lows 44-54. Slope winds.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Slight chance of showers. Highs
72-82. Lows 44-54.
$$
NVZ423-290015-
West Humboldt Basin in Pershing County-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny. Slight
chance of thunderstorms in the afternoon.
* Chance of Thunder..10%.
* Max Temperature....
* Valleys..........82-88.
* Mid Slope........77-87.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........15-25%.
* Mid Slope........16-26%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1200-1700 ft agl increasing to 7900-8900 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Partly cloudy then becoming clear. Slight
chance of thunderstorms in the evening.
* Chance of Thunder..10%.
* Min Temperature....
* Valleys..........55-64.
* Mid Slope........56-65.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........41-51%.
* Mid Slope........31-41%.
* 24 hr trend......17% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......4500-5500 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Very good decreasing to poor after midnight.
.FRIDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........84-92.
* Mid Slope........79-89.
* Min Humidity.......
* Valleys..........13-20%.
* Mid Slope........14-21%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......700-1200 ft agl increasing to 6200-7200 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Clear. Lows 54-63. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 87-93. Lows 54-64. Slope winds.
.SUNDAY THROUGH LABOR DAY...Clear. Highs 89-95. Lows 56-66. Slope
winds.
.TUESDAY...Clear. Highs 88-94. Lows 57-66.
.WEDNESDAY...Sunny. Highs 89-95.
$$
NVZ429-290015-
Lahontan Basin including Churchill and Eastern Mineral Counties-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Mostly sunny. Slight chance of thunderstorms in the
afternoon.
* Chance of Thunder..20%.
* Max Temperature....
* Valleys..........79-89.
* Mid Slope........74-84.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........18-28%.
* Mid Slope........21-29%.
* 24 hr trend......6% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...10%.
* Mixing Height......1400-1900 ft agl increasing to 8000-9000 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to very good in the
afternoon.
.TONIGHT...
* Sky/Weather........Mostly clear. Slight chance of thunderstorms in the
evening.
* Chance of Thunder..10%.
* Min Temperature....
* Valleys..........53-63.
* Mid Slope........55-65.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........50-60%.
* Mid Slope........38-48%.
* 24 hr trend......9% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northeast winds 10 to 15 mph.
* Chc Wetting Rain...5%.
* Mixing Height......4400-5400 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....East 10 to 15 mph.
* Ventilation........Very good decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Mostly sunny. Slight chance of thunderstorms in the
afternoon.
* Chance of Thunder..10%.
* Max Temperature....
* Valleys..........80-90.
* Mid Slope........76-86.
* Min Humidity.......
* Valleys..........14-24%.
* Mid Slope........16-26%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Southeast winds 10 to 15 mph shifting to the
north in the afternoon.
* Chc Wetting Rain...5%.
* Mixing Height......900-1400 ft agl increasing to 6400-7400 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Clear. Lows 53-63. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 83-93. Lows 53-63. Slope winds.
.SUNDAY...Clear. Highs 85-95. Lows 55-65. Slope winds.
.LABOR DAY...Mostly clear. Slight chance of showers. Highs 85-95. Lows
54-64. Slope winds.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Slight chance of showers. Highs
85-95. Lows 53-63.
$$
CAZ270-278-NVZ458-290015-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Partly cloudy then becoming sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........79-89.
* Mid Slope........77-83.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........11-21%.
* Mid Slope........12-18%.
* 24 hr trend......8% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming south 7 to 12 mph
with gusts to 20 mph in the afternoon.
* Ridge Top........South winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1400-1900 ft agl increasing to 8900-9900 ft
agl in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Fair increasing to excellent in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........46-56.
* Mid Slope........50-60.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........35-45%.
* Mid Slope........29-39%.
* 24 hr trend......22% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......5600-6600 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........81-91.
* Mid Slope........77-85.
* Min Humidity.......
* Valleys..........12-20%.
* Mid Slope........13-18%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........North winds 10 to 15 mph shifting to the south
in the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......600-1100 ft agl increasing to 6800-7800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.FRIDAY NIGHT...Partly cloudy in the evening then clearing. Lows
47-57. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 82-92. Lows 47-57. Slope winds.
.SUNDAY THROUGH LABOR DAY...Clear. Highs 84-94. Lows 47-57. Slope
winds.
.TUESDAY THROUGH WEDNESDAY...Clear. Highs 83-93. Lows 47-57.
$$
CAZ271-290015-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........77-87.
* Mid Slope........75-83.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........13-23%.
* Mid Slope........14-22%.
* 24 hr trend......11% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming southwest 7 to 12
mph with gusts to 20 mph in the afternoon.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......1300-1800 ft agl increasing to 9000-10000 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to excellent in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........39-49.
* Mid Slope........47-57.
* 24 hr trend......6 degrees cooler.
* Max Humidity.......
* Valleys..........46-56%.
* Mid Slope........32-42%.
* 24 hr trend......7% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......5000-6000 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.FRIDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........78-88.
* Mid Slope........76-84.
* Min Humidity.......
* Valleys..........15-25%.
* Mid Slope........16-26%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......700-1200 ft agl increasing to 7200-8200 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.FRIDAY NIGHT...Clear. Lows 39-49. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 79-89. Lows 39-49. Slope winds.
.SUNDAY...Clear. Highs 80-90. Lows 41-51. Southwest winds 10 to
15 mph.
.LABOR DAY...Clear. Highs 80-90. Lows 41-51. Slope winds.
.TUESDAY THROUGH WEDNESDAY...Clear. Highs 80-90. Lows 41-51.
$$
CAZ274-290015-
Southern Mono County-
143 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather........Sunny then becoming partly cloudy. Patchy
smoke. Slight chance of thunderstorms in the
afternoon.
* Chance of Thunder..10%.
* Max Temperature....
* Valleys..........68-78.
* Mid Slope........64-74.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........18-28%.
* Mid Slope........22-32%.
* 24 hr trend......8% drier.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1700-2700 ft agl increasing to 7800-8800 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Partly cloudy then becoming clear. Slight
chance of showers in the evening.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........38-48.
* Mid Slope........42-52.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........69-79%.
* Mid Slope........51-61%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......4600-5600 ft agl decreasing to 600-1000 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Very good decreasing to marginal after
midnight.
.FRIDAY...
* Sky/Weather........Mostly sunny. Slight chance of thunderstorms in the
afternoon.
* Chance of Thunder..10%.
* Max Temperature....
* Valleys..........69-79.
* Mid Slope........65-75.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........24-34%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...5%.
* Mixing Height......1300-1800 ft agl increasing to 6000-7000 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.FRIDAY NIGHT...Partly cloudy in the evening then clearing. Lows
39-49. Downslope 2 to 5 mph.
.SATURDAY...Clear. Highs 72-82. Lows 39-49. Slope winds.
.SUNDAY...Clear. Highs 74-84. Lows 42-52. Slope winds.
.LABOR DAY...Mostly clear. Slight chance of showers. Highs 74-84. Lows
41-51. Slope winds.
.TUESDAY...Mostly clear. Slight chance of showers. Highs 73-83. Lows 41-51.
.WEDNESDAY...Sunny. Chance of showers and a slight chance of
thunderstorms. Highs 74-84.
$$
.8 to 14 day outlook for (Thu Sep 4 through Wed Sep 10)
Above normal temperatures and precipitation.
=
$$
http://weather.gov/reno