


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
272 FNUS55 KREV 031021 CCA FWFREV Fire Weather Planning Forecast National Weather Service Reno NV 316 AM PDT Wed Sep 3 2025 .DISCUSSION... Shower and thunderstorm will decrease today through Friday. These storms still have the capability of dry lightning outside the rain cores. However, the primary concerns will be locally heavy rain and strong outflow winds. By the weekend, a cooler, but breezy pattern will return to the region. This could lead to isolated elevated fire weather concerns over the mountain ridges, northeast CA, and northwest NV. 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 NVZ420-040115- Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Partly cloudy then becoming sunny. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..10%. * Max Temperature.... * Valleys..........80-90. * Mid Slope........77-87. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........16-26%. * Mid Slope........22-32%. * 24 hr trend......8% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph in the afternoon. * Ridge Top........Light winds. * Chc Wetting Rain...5%. * Mixing Height......1500-2000 ft agl increasing to 7600-8600 ft agl in the afternoon. * Transport Winds....East 10 to 15 mph. * Ventilation........Fair increasing to very good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........52-62. * Mid Slope........53-63. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........61-71%. * Mid Slope........46-56%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........East winds 10 to 15 mph in the evening becoming light. * Chc Wetting Rain...5%. * Mixing Height......4200-5200 ft agl decreasing to 600-900 ft agl after midnight. * Transport Winds....East 10 to 15 mph. * Ventilation........Very good decreasing to marginal after midnight. .THURSDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........79-89. * Mid Slope........77-87. * Min Humidity....... * Valleys..........16-26%. * Mid Slope........21-31%. * 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...5%. * Mixing Height......900-1400 ft agl increasing to 5200-6200 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy in the evening then clearing. Slight chance of thunderstorms in the evening. Lows 51-61. Downslope 2 to 5 mph. .FRIDAY...Partly cloudy. Slight chance of showers. Highs 79-89. Lows 46-56. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 75-85. Lows 43-53. West winds 10 to 15 mph. .MONDAY THROUGH TUESDAY...Clear. Highs 70-80. Lows 41-51. $$ NVZ421-040115- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Partly cloudy. Chance of showers and a slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........75-85. * Mid Slope........68-78. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........23-33%. * Mid Slope........23-33%. * 24 hr trend......11% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph in the afternoon. * Ridge Top........East winds 10 to 15 mph with gusts to 25 mph until late afternoon becoming light. * Chc Wetting Rain...10%. * Mixing Height......1700-2200 ft agl increasing to 6900-7900 ft agl in the afternoon. * Transport Winds....Southeast 10 to 15 mph. * Ventilation........Fair increasing to very good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. Patchy smoke in the evening. Slight chance of showers in the evening. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........42-52. * Mid Slope........53-63. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........69-79%. * Mid Slope........48-58%. * 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......3500-4500 ft agl decreasing to 600-900 ft agl after midnight. * Transport Winds....Light winds. * Ventilation........Good decreasing to poor after midnight. .THURSDAY... * Sky/Weather........Sunny then becoming partly cloudy. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........76-86. * Mid Slope........70-80. * Min Humidity....... * Valleys..........19-29%. * Mid Slope........19-29%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds becoming northwest 10 to 15 mph in the late morning and afternoon. * Chc Wetting Rain...10%. * Mixing Height......1100-1600 ft agl increasing to 5600-6600 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy in the evening then clearing. Slight chance of thunderstorms in the evening. Lows 42-52. Downslope 2 to 5 mph. .FRIDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 76-86. Lows 38-48. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 74-84. Lows 35-45. Southwest winds 10 to 15 mph. .MONDAY THROUGH TUESDAY...Clear. Highs 71-81. Lows 34-44. $$ CAZ272-040115- Greater Lake Tahoe and Truckee Area- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Partly cloudy. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........71-81. * Mid Slope........69-79. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........31-41%. * Mid Slope........30-40%. * 24 hr trend......9% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds becoming east 10 to 15 mph in the late morning and afternoon. * Chc Wetting Rain...5%. * Mixing Height......1200-1700 ft agl increasing to 6400-7400 ft agl in the afternoon. * Transport Winds....East 10 to 15 mph. * Ventilation........Fair increasing to very good in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........44-54. * Mid Slope........47-57. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........82-92%. * Mid Slope........54-64%. * 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......2300-3300 ft agl decreasing to 600-800 ft agl after midnight. * Transport Winds....Light winds. * Ventilation........Fair decreasing to poor after midnight. .THURSDAY... * Sky/Weather........Sunny then becoming partly cloudy. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..10%. * Max Temperature.... * Valleys..........70-80. * Mid Slope........68-78. * Min Humidity....... * Valleys..........31-41%. * Mid Slope........30-40%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........South winds 10 to 15 mph shifting to the northwest in the afternoon. * Chc Wetting Rain...5%. * Mixing Height......800-1300 ft agl increasing to 4100-5100 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy in the evening then becoming clear. Slight chance of thunderstorms in the evening. Lows 43-53. Downslope 2 to 5 mph. .FRIDAY...Mostly clear. Slight chance of showers. Highs 69-79. Lows 39-49. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 65-75. Lows 36-46. Slope winds. .MONDAY...Clear. Highs 61-71. Lows 34-44. .TUESDAY...Mostly sunny. Slight chance of showers. Highs 60-70. $$ NVZ423-040115- West Humboldt Basin in Pershing County- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Mostly cloudy. Slight chance of showers. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........84-92. * Mid Slope........79-89. * 24 hr trend......7 degrees cooler. * Min Humidity....... * Valleys..........20-27%. * Mid Slope........21-27%. * 24 hr trend......12% wetter. * 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 7200-8200 ft agl in the afternoon. * Transport Winds....Southeast 10 to 15 mph. * Ventilation........Fair increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Mostly cloudy then becoming partly cloudy. Slight chance of thunderstorms in the evening. * Chance of Thunder..20%. * Min Temperature.... * Valleys..........59-66. * Mid Slope........59-66. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........50-60%. * Mid Slope........40-50%. * 24 hr trend......10% wetter. * 20-Foot Winds...... * Valleys/Slope....South winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Southwest winds 10 to 15 mph shifting to the north in the morning. * Chc Wetting Rain...5%. * Mixing Height......3200-4200 ft agl decreasing to 600-800 ft agl after midnight. * Transport Winds....East 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .THURSDAY... * Sky/Weather........Partly cloudy then becoming sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........86-92. * Mid Slope........80-90. * Min Humidity....... * Valleys..........17-23%. * Mid Slope........18-24%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds becoming west 10 to 15 mph in the afternoon. * Chc Wetting Rain...5%. * Mixing Height......700-1200 ft agl increasing to 5500-6500 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy. Lows 58-67. Downslope 2 to 5 mph. .FRIDAY...Mostly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 86-92. Lows 54-64. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 80-89. Lows 49-59. Slope winds. .MONDAY THROUGH TUESDAY...Clear. Highs 76-85. Lows 47-57. $$ NVZ429-040115- Lahontan Basin including Churchill and Eastern Mineral Counties- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Mostly cloudy then becoming partly cloudy. Slight chance of showers in the morning. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..10%. * Max Temperature.... * Valleys..........80-90. * Mid Slope........75-85. * 24 hr trend......6 degrees cooler. * Min Humidity....... * Valleys..........21-31%. * Mid Slope........21-31%. * 24 hr trend......13% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph in the afternoon. * Ridge Top........Light winds. Gusts to 20 mph in the afternoon. * Chc Wetting Rain...5%. * Mixing Height......1400-1900 ft agl increasing to 7000-8000 ft agl in the afternoon. * Transport Winds....Southeast 10 to 15 mph. * Ventilation........Fair increasing to excellent 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..........55-65. * Mid Slope........56-66. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........57-67%. * Mid Slope........44-54%. * 24 hr trend......9% wetter. * 20-Foot Winds...... * Valleys/Slope....Southeast winds 7 to 12 mph until early morning becoming downslope 2 to 5 mph. * Ridge Top........East winds 10 to 15 mph. * Chc Wetting Rain...5%. * Mixing Height......3700-4700 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. .THURSDAY... * Sky/Weather........Mostly sunny. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..10%. * Max Temperature.... * Valleys..........83-93. * Mid Slope........78-88. * Min Humidity....... * Valleys..........17-27%. * Mid Slope........19-29%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........South winds 10 to 15 mph shifting to the northwest in the afternoon. * 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... .THURSDAY NIGHT...Partly cloudy. Slight chance of showers in the evening. Lows 57-67. Downslope 2 to 5 mph. .FRIDAY...Partly cloudy. Chance of showers and a slight chance of thunderstorms. Highs 83-93. Lows 51-61. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 79-89. Lows 48-58. Slope winds. .MONDAY THROUGH TUESDAY...Clear. Highs 76-86. Lows 47-57. $$ CAZ270-278-NVZ458-040115- Surprise Valley California-Eastern Lassen County- Northern Washoe County- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Mostly cloudy then becoming partly cloudy. Slight chance of showers in the morning. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........82-92. * Mid Slope........78-86. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........17-27%. * Mid Slope........21-27%. * 24 hr trend......9% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming southeast 7 to 12 mph in the afternoon. * Ridge Top........Light winds. * Chc Wetting Rain...5%. * Mixing Height......1300-1800 ft agl increasing to 8200-9200 ft agl in the afternoon. * Transport Winds....Light winds becoming southeast 10 to 15 mph in the afternoon. * Ventilation........Fair increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........49-59. * Mid Slope........53-63. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........58-68%. * Mid Slope........45-55%. * 24 hr trend......11% wetter. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds. * Chc Wetting Rain...5%. * Mixing Height......4200-5200 ft agl decreasing to 600-700 ft agl after midnight. * Transport Winds....East 10 to 15 mph. * Ventilation........Very good decreasing to marginal after midnight. .THURSDAY... * Sky/Weather........Mostly sunny. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..10%. * Max Temperature.... * Valleys..........82-92. * Mid Slope........78-86. * Min Humidity....... * Valleys..........16-26%. * Mid Slope........20-26%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Northeast winds 10 to 15 mph until late afternoon becoming light. * Chc Wetting Rain...5%. * 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... .THURSDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Slight chance of thunderstorms in the evening. Lows 49-59. West winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. .FRIDAY...Partly cloudy. Slight chance of thunderstorms. Highs 81-91. Lows 43-53. West winds 10 to 15 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs 75-85. Lows 41-51. West winds 10 to 15 mph. .MONDAY THROUGH TUESDAY...Partly cloudy. Slight chance of showers. Highs 71-81. Lows 40-50. $$ CAZ271-040115- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Partly cloudy. Chance of showers. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........79-89. * Mid Slope........77-85. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........23-33%. * Mid Slope........24-34%. * 24 hr trend......9% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Chc Wetting Rain...5%. * Mixing Height......1100-1600 ft agl increasing to 8400-9400 ft agl in the afternoon. * Transport Winds....Southeast 10 to 15 mph. * Ventilation........Fair increasing to excellent in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. Patchy smoke in the evening. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........42-52. * Mid Slope........51-61. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........71-81%. * Mid Slope........54-64%. * 24 hr trend......6% wetter. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds. * Chc Wetting Rain...5%. * Mixing Height......3400-4400 ft agl decreasing to 600-700 ft agl after midnight. * Transport Winds....Light winds. * Ventilation........Good decreasing to marginal after midnight. .THURSDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Max Temperature.... * Valleys..........79-89. * Mid Slope........77-85. * Min Humidity....... * Valleys..........23-33%. * Mid Slope........24-34%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Southeast winds 10 to 15 mph in the morning becoming light. * Chc Wetting Rain...5%. * Mixing Height......800-1300 ft agl increasing to 6300-7300 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy. Slight chance of thunderstorms in the evening. Lows 41-51. Downslope 2 to 5 mph. .FRIDAY...Mostly clear. Slight chance of showers. Highs 77-87. Lows 36-46. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 71-81. Lows 33-43. Southwest winds 10 to 15 mph. .MONDAY...Mostly clear. Slight chance of showers. Highs 67-77. Lows 32-42. .TUESDAY...Partly cloudy. Slight chance of showers. Highs 65-75. $$ CAZ274-040115- Southern Mono County- 316 AM PDT Wed Sep 3 2025 .TODAY... * Sky/Weather........Partly cloudy then becoming mostly cloudy. Chance of showers and a slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........70-80. * Mid Slope........66-76. * 24 hr trend......4 degrees cooler. * Min Humidity....... * Valleys..........27-37%. * Mid Slope........31-41%. * 24 hr trend......13% wetter. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph with gusts to 20 mph in the afternoon. * Ridge Top........East winds 10 to 15 mph. * Chc Wetting Rain...10%. * Mixing Height......1600-2600 ft agl increasing to 5600-6600 ft agl in the afternoon. * Transport Winds....East 10 to 15 mph. * Ventilation........Good increasing to very good in the afternoon. .TONIGHT... * Sky/Weather........Mostly cloudy then becoming clear. Slight chance of showers in the evening. * Chance of Thunder..0%. * Min Temperature.... * Valleys..........41-51. * Mid Slope........43-53. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........78-88%. * Mid Slope........58-68%. * 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......3600-4600 ft agl decreasing to 600-1000 ft agl after midnight. * Transport Winds....Light winds. * Ventilation........Good decreasing to marginal after midnight. .THURSDAY... * Sky/Weather........Sunny then becoming partly cloudy. Slight chance of thunderstorms in the afternoon. * Chance of Thunder..20%. * Max Temperature.... * Valleys..........72-82. * Mid Slope........68-78. * Min Humidity....... * Valleys..........21-31%. * Mid Slope........24-34%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........West winds 10 to 15 mph. * Chc Wetting Rain...10%. * Mixing Height......1200-1700 ft agl increasing to 4900-5900 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to good in the afternoon. .Extended... .THURSDAY NIGHT...Partly cloudy in the evening then clearing. Slight chance of thunderstorms in the evening. Lows 41-51. West winds 5 to 10 mph in the evening becoming downslope 2 to 5 mph. .FRIDAY...Partly cloudy. Slight chance of thunderstorms. Highs 72-82. Lows 36-46. Slope winds. .SATURDAY THROUGH SUNDAY...Clear. Highs 70-80. Lows 35-45. Southwest winds 8 to 13 mph. .MONDAY THROUGH TUESDAY...Clear. Highs 68-78. Lows 34-44. $$ .8 to 14 day outlook for (Wed Sep 10 through Tue Sep 16) Near normal temperatures and precipitation. = $$ http://weather.gov/reno