Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
650
FNUS55 KREV 101217
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
517 AM PDT Sun Aug 10 2025
.DISCUSSION...
Hot and dry conditions continue through early week with poor to
fair overnight humidity recoveries. By midweek, isolated
thunderstorms may return to the Sierra. The strengthening of
westerly winds Tuesday-Thursday will heighten the potential for
elevated fire weather concerns.
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
NVZ420-110015-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........85-95.
* Mid Slope........84-94.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........7-17%.
* Mid Slope........9-15%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming northeast 7 to 12
mph in the afternoon.
* Ridge Top........Light winds becoming northeast 10 to 15 mph in
the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......1500-2000 ft agl increasing to 6900-7900 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........55-65.
* Mid Slope........59-69.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........32-42%.
* Mid Slope........22-32%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....North winds 5 to 10 mph in the evening becoming
downslope 2 to 5 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......4600-5600 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Excellent decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........88-98.
* Mid Slope........87-97.
* Min Humidity.......
* Valleys..........7-17%.
* Mid Slope........10-16%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming northeast 10 to 15 mph in
the afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl increasing to 5500-6500 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to very good in the
afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 57-67. West winds 7 to 12 mph.
.TUESDAY...Clear. Highs 90-100. Lows 55-65. West winds 10 to 15 mph.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 85-95. Lows 48-58. West
winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 80-90. Lows 48-58.
$$
NVZ421-110015-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........86-96.
* Mid Slope........79-89.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........7-17%.
* Mid Slope........7-17%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming north 9 to 15 mph in
the afternoon.
* Ridge Top........North winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1800-2800 ft agl increasing to 8600-9600 ft
agl in the afternoon.
* Transport Winds....Northeast 10 to 15 mph.
* Ventilation........Fair increasing to excellent in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........48-58.
* Mid Slope........59-69.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........28-38%.
* Mid Slope........18-28%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....North winds 9 to 16 mph in the evening becoming
downslope 2 to 5 mph.
* Ridge Top........West winds 10 to 15 mph shifting to the
northeast after midnight.
* Chc Wetting Rain...0%.
* Mixing Height......4900-5900 ft agl decreasing to 600-900 ft agl
after midnight.
* Transport Winds....Northwest 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........87-97.
* Mid Slope........81-91.
* Min Humidity.......
* Valleys..........8-16%.
* Mid Slope........8-18%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming north 9 to 14 mph in
the afternoon.
* Ridge Top........Light winds becoming north 10 to 15 mph in the
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......1200-1700 ft agl increasing to 7000-8000 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 50-60. West winds 9 to 14 mph.
.TUESDAY...Clear. Highs 89-99. Lows 48-58. West winds 10 to 15 mph.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 84-94. Lows 42-52. West
winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 80-90. Lows 41-51.
$$
CAZ272-110015-
Greater Lake Tahoe and Truckee Area-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........79-89.
* Mid Slope........77-87.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........13-23%.
* Mid Slope........12-22%.
* 24 hr trend......Little change.
* 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......1400-1900 ft agl increasing to 6300-7300 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........50-60.
* Mid Slope........52-62.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........49-59%.
* Mid Slope........28-38%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Light winds becoming east 10 to 15 mph after
midnight.
* Chc Wetting Rain...0%.
* Mixing Height......3900-4900 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.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........80-90.
* Mid Slope........79-89.
* Min Humidity.......
* Valleys..........15-25%.
* Mid Slope........14-24%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl increasing to 5400-6400 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 51-61. Downslope 2 to 5 mph.
.TUESDAY...Clear. Highs 80-90. Lows 49-59. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 74-84. Lows 42-52. Slope
winds.
.FRIDAY THROUGH SATURDAY...Clear. Highs 70-80. Lows 41-51.
$$
NVZ423-110015-
West Humboldt Basin in Pershing County-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........91-97.
* Mid Slope........85-95.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........8-13%.
* Mid Slope........9-14%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....North winds 7 to 12 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......1700-2200 ft agl increasing to 7300-8300 ft
agl in the afternoon.
* Transport Winds....North 10 to 15 mph.
* Ventilation........Fair increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........56-66.
* Mid Slope........59-69.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........22-32%.
* Mid Slope........18-28%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....North winds 7 to 12 mph in the evening becoming
downslope 2 to 5 mph.
* Ridge Top........North winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......4400-5400 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....North 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........95-101.
* Mid Slope........89-99.
* Min Humidity.......
* Valleys..........8-13%.
* Mid Slope........9-14%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds becoming north 10 to 15 mph in the
late morning and afternoon. Gusts to 20 mph in
the morning.
* Chc Wetting Rain...0%.
* Mixing Height......800-1300 ft agl increasing to 5800-6800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 59-69. Downslope 2 to 5 mph.
.TUESDAY...Clear. Highs 98-104. Lows 59-69. Slope winds.
.WEDNESDAY...Clear. Highs 96-102. Lows 56-66. West winds 10 to
15 mph.
.THURSDAY...Clear. Highs 91-97. Lows 54-64. West winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 87-95. Lows 54-64.
$$
NVZ429-110015-
Lahontan Basin including Churchill and Eastern Mineral Counties-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........90-100.
* Mid Slope........85-95.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........7-12%.
* Mid Slope........7-12%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming north 9 to 14 mph in
the late morning and afternoon.
* Ridge Top........North winds 10 to 15 mph.
* Chc Wetting Rain...0%.
* Mixing Height......1700-2200 ft agl increasing to 7800-8800 ft
agl in the afternoon.
* Transport Winds....North 10 to 15 mph.
* Ventilation........Fair increasing to excellent in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........57-67.
* Mid Slope........60-70.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........21-31%.
* Mid Slope........18-28%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....North winds 9 to 14 mph until early morning
becoming downslope 2 to 5 mph.
* Ridge Top........North winds 10 to 15 mph with gusts to 25 mph.
* Chc Wetting Rain...0%.
* Mixing Height......4500-5500 ft agl decreasing to 600-800 ft agl
after midnight.
* Transport Winds....North 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........92-102.
* Mid Slope........87-97.
* Min Humidity.......
* Valleys..........8-13%.
* Mid Slope........8-13%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming north 5 to 10 mph
late in the afternoon.
* Ridge Top........Northeast winds 10 to 15 mph in the morning,
then becoming northwest 10 to 15 mph in the
afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......900-1400 ft agl increasing to 5800-6800 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 59-69. Northwest winds 9 to 14 mph until
early morning becoming downslope 2 to 5 mph.
.TUESDAY...Clear. Highs 95-105. Lows 59-69. Slope winds.
.WEDNESDAY...Clear. Highs 92-102. Lows 55-65. West winds 10 to
15 mph.
.THURSDAY...Clear. Highs 88-98. Lows 54-64. West winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 86-96. Lows 53-63.
$$
CAZ270-278-NVZ458-110015-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........88-98.
* Mid Slope........84-92.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........7-15%.
* Mid Slope........10-16%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph in
the late morning and afternoon.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......1600-2100 ft agl increasing to 7300-8300 ft
agl in the afternoon.
* Transport Winds....Northeast 10 to 15 mph.
* Ventilation........Fair increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........53-63.
* Mid Slope........56-66.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........29-39%.
* Mid Slope........23-33%.
* 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......4300-5300 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....North 10 to 15 mph.
* Ventilation........Very good decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........91-101.
* Mid Slope........88-96.
* Min Humidity.......
* Valleys..........8-15%.
* Mid Slope........10-16%.
* 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......800-1300 ft agl increasing to 5500-6500 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to good in the afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 56-66. West winds 7 to 12 mph.
.TUESDAY...Clear. Highs 93-103. Lows 53-63. West winds 10 to 15 mph.
.WEDNESDAY...Clear. Highs 89-99. Lows 49-59. West winds 10 to
15 mph.
.THURSDAY...Clear. Highs 84-94. Lows 47-57. West winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 82-92. Lows 46-56.
$$
CAZ271-110015-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........87-97.
* Mid Slope........85-93.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........10-16%.
* Mid Slope........11-17%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds.
* Chc Wetting Rain...0%.
* Mixing Height......1500-2000 ft agl increasing to 8000-9000 ft
agl in the afternoon.
* Transport Winds....Southeast 10 to 15 mph.
* Ventilation........Good increasing to very good in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........47-57.
* Mid Slope........55-65.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........41-51%.
* Mid Slope........30-40%.
* 24 hr trend......5% wetter.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Northwest winds 10 to 15 mph until early morning
becoming light.
* Chc Wetting Rain...0%.
* Mixing Height......4700-5700 ft agl decreasing to 600-700 ft agl
after midnight.
* Transport Winds....Light winds.
* Ventilation........Excellent decreasing to marginal after
midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........89-99.
* Mid Slope........87-95.
* Min Humidity.......
* Valleys..........11-17%.
* Mid Slope........12-18%.
* 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 6600-7600 ft agl
in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Marginal increasing to very good in the
afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 49-59. West winds 7 to 12 mph in the
evening becoming downslope 2 to 5 mph.
.TUESDAY...Clear. Highs 88-98. Lows 45-55. Southwest winds 10 to
15 mph.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 82-92. Lows 40-50.
Southwest winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 78-88. Lows 38-48.
$$
CAZ274-110015-
Southern Mono County-
517 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........83-93.
* Mid Slope........78-88.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........7-17%.
* Mid Slope........8-17%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming north 9 to 14 mph in
the afternoon.
* Ridge Top........Light winds becoming northwest 10 to 15 mph in
the late morning and afternoon.
* Chc Wetting Rain...0%.
* Mixing Height......2200-3200 ft agl increasing to 9400-10400 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Good increasing to excellent in the afternoon.
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Min Temperature....
* Valleys..........47-57.
* Mid Slope........49-59.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........33-43%.
* Mid Slope........23-33%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Northwest winds 9 to 14 mph with gusts to 25 mph
in the evening becoming downslope 2 to 5 mph.
* Ridge Top........Northwest winds 10 to 15 mph with gusts to 25
mph.
* Chc Wetting Rain...0%.
* Mixing Height......5800-6800 ft agl decreasing to 600-1000 ft agl
after midnight.
* Transport Winds....Northwest 10 to 15 mph.
* Ventilation........Excellent decreasing to fair after midnight.
.MONDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Max Temperature....
* Valleys..........83-93.
* Mid Slope........80-90.
* Min Humidity.......
* Valleys..........8-18%.
* Mid Slope........9-18%.
* 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......1500-2000 ft agl increasing to 6900-7900 ft
agl in the afternoon.
* Transport Winds....Light winds.
* Ventilation........Fair increasing to excellent in the afternoon.
.Extended...
.MONDAY NIGHT...Clear. Lows 49-59. Northwest winds 8 to 13 mph.
.TUESDAY...Clear. Highs 84-94. Lows 48-58. Slope winds.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 79-89. Lows 41-51. West
winds 10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 75-85. Lows 39-49.
$$
.8 to 14 day outlook for (Sun Aug 17 through Sat Aug 23)
Near normal temperatures and Below normal precipitation.
=
$$
http://weather.gov/reno