


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
098 FNUS55 KREV 180849 FWFREV Fire Weather Planning Forecast National Weather Service Reno NV 149 AM PDT Mon Aug 18 2025 .DISCUSSION... High pressure will result in warmer temperatures this week with dry weather through Wednesday. Hottest weather is expected late this week into the weekend. Monsoonal moisture arrives to the region at the end of the week, increasing the potential for thunderstorms and new lightning ignitions Thursday through 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 NVZ420-190030- Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........82-92. * Mid Slope........78-88. * 24 hr trend......7 degrees warmer. * Min Humidity....... * Valleys..........10-20%. * Mid Slope........14-24%. * 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........Southwest winds 10 to 15 mph. * Chc Wetting Rain...0%. * Mixing Height......1600-2600 ft agl increasing to 6500-7500 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........52-62. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........41-51%. * Mid Slope........30-40%. * 24 hr trend......16% drier. * 20-Foot Winds...... * Valleys/Slope....West winds 9 to 14 mph. * Ridge Top........West winds 10 to 15 mph. * Chc Wetting Rain...0%. * Mixing Height......3700-4700 ft agl decreasing to 600-900 ft agl after midnight. * Transport Winds....West 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........84-94. * Mid Slope........80-90. * Min Humidity....... * Valleys..........8-18%. * Mid Slope........11-17%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Southwest winds 10 to 15 mph in the morning becoming light. * Chc Wetting Rain...0%. * Mixing Height......800-1300 ft agl increasing to 6200-7200 ft agl in the afternoon. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Marginal increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 46-56. West winds 9 to 14 mph. .WEDNESDAY...Clear. Highs 82-92. Lows 46-56. Slope winds. .THURSDAY...Clear. Highs 85-95. Lows 49-59. Slope winds. .FRIDAY...Mostly clear. Slight chance of thunderstorms. Highs 88-98. Lows 56-66. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 85-95. Lows 56-66. $$ NVZ421-190030- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........81-91. * Mid Slope........75-85. * 24 hr trend......4 degrees warmer. * Min Humidity....... * Valleys..........8-18%. * Mid Slope........8-18%. * 24 hr trend......6% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 8 to 13 mph with gusts to 20 mph in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph. * Chc Wetting Rain...0%. * Mixing Height......1800-2800 ft agl increasing to 7500-8500 ft agl in the afternoon. * Transport Winds....South 10 to 15 mph. * Ventilation........Good increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........41-51. * Mid Slope........54-64. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........37-47%. * Mid Slope........27-37%. * 24 hr trend......19% drier. * 20-Foot Winds...... * Valleys/Slope....West winds 8 to 13 mph with gusts to 20 mph until early morning becoming downslope 2 to 5 mph. * Ridge Top........South winds 10 to 15 mph. * Chc Wetting Rain...0%. * Mixing Height......4600-5600 ft agl decreasing to 600-900 ft agl after midnight. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........82-92. * Mid Slope........76-86. * Min Humidity....... * Valleys..........9-18%. * Mid Slope........10-20%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southeast 9 to 14 mph in the afternoon. * Ridge Top........South winds 10 to 15 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......1400-1900 ft agl increasing to 7800-8800 ft agl in the afternoon. * Transport Winds....Light winds becoming south 15 to 25 mph in the afternoon. * Ventilation........Good increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 40-50. West winds 9 to 14 mph until early morning becoming downslope 2 to 5 mph. .WEDNESDAY...Clear. Highs 83-93. Lows 40-50. Slope winds. .THURSDAY...Clear. Highs 86-96. Lows 44-54. Slope winds. .FRIDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 86-96. Lows 49-59. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 82-92. Lows 48-58. $$ CAZ272-190030- Greater Lake Tahoe and Truckee Area- 149 AM PDT Mon Aug 18 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..........24-34%. * Mid Slope........22-32%. * 24 hr trend......11% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 7 to 12 mph in the afternoon. * Ridge Top........Southwest winds 10 to 20 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......1600-2100 ft agl increasing to 4000-5000 ft agl in the afternoon. * Transport Winds....Southwest 10 to 20 mph. * Ventilation........Good increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........41-51. * Mid Slope........45-55. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........61-71%. * Mid Slope........35-45%. * 24 hr trend......20% drier. * 20-Foot Winds...... * Valleys/Slope....Southwest winds 5 to 10 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......1600-2600 ft agl decreasing to 600-800 ft agl after midnight. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Very good decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........71-81. * Mid Slope........69-79. * Min Humidity....... * Valleys..........16-26%. * Mid Slope........15-25%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......900-1400 ft agl increasing to 4700-5700 ft agl in the afternoon. * Transport Winds....South 10 to 20 mph. * Ventilation........Fair increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 39-49. West winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. .WEDNESDAY...Clear. Highs 74-84. Lows 39-49. Slope winds. .THURSDAY...Clear. Highs 78-88. Lows 44-54. Slope winds. .FRIDAY...Mostly clear. Slight chance of thunderstorms. Highs 79-89. Lows 50-60. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 76-86. Lows 49-59. $$ NVZ423-190030- West Humboldt Basin in Pershing County- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........87-93. * Mid Slope........82-92. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........11-17%. * Mid Slope........12-18%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 7 to 12 mph in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......1600-2600 ft agl increasing to 7300-8300 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..........53-63. * Mid Slope........56-65. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........26-36%. * Mid Slope........21-31%. * 24 hr trend......22% drier. * 20-Foot Winds...... * Valleys/Slope....West winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Northwest winds 10 to 15 mph shifting to the east in the morning. * Chc Wetting Rain...0%. * Mixing Height......4100-5100 ft agl decreasing to 600-800 ft agl after midnight. * Transport Winds....West 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........89-97. * Mid Slope........85-95. * Min Humidity....... * Valleys..........8-13%. * Mid Slope........8-13%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 5 to 10 mph late in the afternoon. * Ridge Top........South winds 10 to 20 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......800-1300 ft agl increasing to 6200-7200 ft agl in the afternoon. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Marginal increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 52-62. West winds 8 to 13 mph until early morning becoming downslope 2 to 5 mph. .WEDNESDAY...Clear. Highs 89-97. Lows 52-62. Slope winds. .THURSDAY THROUGH FRIDAY...Clear. Highs 93-102. Lows 53-63. Slope winds. .SATURDAY...Partly cloudy. Slight chance of thunderstorms. Highs 95-101. Lows 60-70. .SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 91-97. $$ NVZ429-190030- Lahontan Basin including Churchill and Eastern Mineral Counties- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........86-96. * Mid Slope........82-92. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........7-17%. * Mid Slope........8-17%. * 24 hr trend......4% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 7 to 12 mph in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......1500-2500 ft agl increasing to 7900-8900 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..........53-63. * Mid Slope........55-65. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........31-41%. * Mid Slope........17-27%. * 24 hr trend......16% drier. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 7 to 12 mph. Gusts to 20 mph in the evening. * Ridge Top........Light winds becoming south 10 to 15 mph after midnight. Gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......4700-5700 ft agl decreasing to 600-800 ft agl after midnight. * Transport Winds....West 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........88-98. * Mid Slope........84-94. * Min Humidity....... * Valleys..........8-15%. * Mid Slope........8-13%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........South winds 10 to 15 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......900-1400 ft agl increasing to 6500-7500 ft agl in the afternoon. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Fair increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 53-63. West winds 8 to 13 mph. .WEDNESDAY...Clear. Highs 88-98. Lows 53-63. Slope winds. .THURSDAY...Clear. Highs 91-101. Lows 53-63. Slope winds. .FRIDAY...Partly cloudy. Slight chance of thunderstorms. Highs 92-102. Lows 58-68. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 89-99. Lows 60-70. $$ CAZ270-278-NVZ458-190030- Surprise Valley California-Eastern Lassen County- Northern Washoe County- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........80-90. * Mid Slope........77-85. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........11-19%. * Mid Slope........13-18%. * 24 hr trend......13% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 9 to 15 mph with gusts to 25 mph in the late morning and afternoon. * Ridge Top........Southwest winds 10 to 20 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......1500-2000 ft agl increasing to 6400-7400 ft agl in the afternoon. * Transport Winds....Light winds becoming southwest 15 to 25 mph in the afternoon. * Ventilation........Good increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........42-52. * Mid Slope........49-59. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........42-52%. * Mid Slope........28-38%. * 24 hr trend......27% drier. * 20-Foot Winds...... * Valleys/Slope....West winds 9 to 15 mph with gusts to 25 mph until early morning becoming downslope 2 to 5 mph. * Ridge Top........West winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......3700-4700 ft agl decreasing to 600-700 ft agl after midnight. * Transport Winds....West 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........83-93. * Mid Slope........80-88. * Min Humidity....... * Valleys..........8-14%. * Mid Slope........10-15%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 8 to 13 mph late in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......700-1200 ft agl increasing to 6000-7000 ft agl in the afternoon. * Transport Winds....Southwest 10 to 20 mph. * Ventilation........Marginal increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 42-52. West winds 9 to 17 mph decreasing to 7 to 12 mph after midnight. .WEDNESDAY...Clear. Highs 84-94. Lows 42-52. Slope winds. .THURSDAY...Clear. Highs 88-98. Lows 44-54. Slope winds. .FRIDAY...Clear. Highs 91-101. Lows 51-61. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Slight chance of thunderstorms. Highs 88-98. Lows 54-64. $$ CAZ271-190030- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........73-83. * Mid Slope........71-81. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........15-25%. * Mid Slope........15-25%. * 24 hr trend......18% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 9 to 14 mph in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......1500-2000 ft agl increasing to 5000-6000 ft agl in the afternoon. * Transport Winds....Southwest 10 to 20 mph. * Ventilation........Good increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........35-45. * Mid Slope........44-54. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........59-69%. * Mid Slope........42-52%. * 24 hr trend......23% drier. * 20-Foot Winds...... * Valleys/Slope....West winds 9 to 14 mph becoming downslope 2 to 5 mph. * Ridge Top........Southwest winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......2400-3400 ft agl decreasing to 600-700 ft agl after midnight. * Transport Winds....Southwest 10 to 15 mph. * Ventilation........Very good decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........77-87. * Mid Slope........74-84. * Min Humidity....... * Valleys..........12-22%. * Mid Slope........12-22%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southwest 8 to 13 mph late in the afternoon. * Ridge Top........Southwest winds 10 to 15 mph. * Chc Wetting Rain...0%. * Mixing Height......700-1200 ft agl increasing to 5600-6600 ft agl in the afternoon. * Transport Winds....Light winds becoming south 15 to 20 mph in the afternoon. * Ventilation........Marginal increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 34-44. West winds 9 to 14 mph in the evening becoming downslope 2 to 5 mph. .WEDNESDAY...Clear. Highs 80-90. Lows 34-44. Slope winds. .THURSDAY...Clear. Highs 86-96. Lows 39-49. Slope winds. .FRIDAY...Clear. Highs 87-97. Lows 46-56. Southwest winds 10 to 15 mph. .SATURDAY THROUGH SUNDAY...Mostly clear. Slight chance of thunderstorms. Highs 84-94. Lows 46-56. $$ CAZ274-190030- Southern Mono County- 149 AM PDT Mon Aug 18 2025 .TODAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........78-88. * Mid Slope........74-84. * 24 hr trend......4 degrees warmer. * Min Humidity....... * Valleys..........7-17%. * Mid Slope........8-17%. * 24 hr trend......9% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming south 8 to 13 mph with gusts to 20 mph in the afternoon. * Ridge Top........South winds 10 to 15 mph with gusts to 25 mph. * Chc Wetting Rain...0%. * Mixing Height......1600-2600 ft agl increasing to 6400-7400 ft agl in the afternoon. * Transport Winds....South 10 to 20 mph. * Ventilation........Good increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........39-49. * Mid Slope........43-53. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........40-50%. * Mid Slope........29-39%. * 24 hr trend......21% drier. * 20-Foot Winds...... * Valleys/Slope....Southwest winds 8 to 13 mph. Gusts to 20 mph in the evening. * Ridge Top........South winds 10 to 15 mph with gusts to 30 mph. * Chc Wetting Rain...0%. * Mixing Height......4200-5200 ft agl decreasing to 600-1000 ft agl after midnight. * Transport Winds....South 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........78-88. * Mid Slope........74-84. * Min Humidity....... * Valleys..........9-18%. * Mid Slope........10-19%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming south 9 to 14 mph with gusts to 25 mph in the afternoon. * Ridge Top........South winds 10 to 20 mph with gusts to 35 mph. * Chc Wetting Rain...0%. * Mixing Height......1400-1900 ft agl increasing to 6400-7400 ft agl in the afternoon. * Transport Winds....Light winds becoming south 15 to 25 mph in the afternoon. * Ventilation........Good increasing to excellent in the afternoon. .Extended... .TUESDAY NIGHT...Clear. Lows 40-50. Southwest winds 9 to 14 mph until early morning becoming downslope 2 to 5 mph. .WEDNESDAY...Clear. Highs 80-90. Lows 40-50. Slope winds. .THURSDAY...Mostly clear. Slight chance of thunderstorms. Highs 82-92. Lows 44-54. Slope winds. .FRIDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 81-91. Lows 48-58. Slope winds. .SATURDAY THROUGH SUNDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 78-88. Lows 46-56. $$ .8 to 14 day outlook for (Mon Aug 25 through Sun Aug 31) Near normal temperatures and Above normal precipitation. = $$ http://weather.gov/reno