FNUS55 KREV 182034 FWFREV Fire Weather Planning Forecast National Weather Service Reno NV 134 PM PDT Mon May 18 2026 .DISCUSSION... After a cold morning, a warming trend will begin Tuesday with temperatures nearing season averages. Temperatures then reach the 80s again by mid-week (70s Sierra valleys). Brisk northeast winds will prevail today before our typical afternoon Zephyr west breezes return by Wednesday. Otherwise expect dry conditions through the week with only a low (<10% chance) of isolated showers by next 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 NVZ420-191430- Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........28-38. * Mid Slope........31-40. * 24 hr trend......4 degrees warmer. * Max Humidity....... * Valleys..........31-41%. * Mid Slope........25-35%. * 24 hr trend......17% drier. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Northeast winds 10 to 15 mph with gusts to 25 mph. * Mixing Height......4700-5700 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........64-74. * Mid Slope........60-70. * 24 hr trend......6 degrees warmer. * Min Humidity....... * Valleys..........4-14%. * 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. * Mixing Height......3000-4000 ft agl increasing to 7400-8400 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........36-46. * Mid Slope........38-48. * Max Humidity....... * Valleys..........28-38%. * Mid Slope........18-28%. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......4200-5200 ft agl in the evening then 200-500 ft agl. * Transport Winds....Light winds. * Ventilation........Very good decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Partly cloudy then becoming sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........70-80. * Mid Slope........67-77. * Min Humidity....... * Valleys..........7-17%. * Mid Slope........10-17%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Southwest winds 10 to 15 mph. * Mixing Height......600-1000 ft agl increasing to 7300-8300 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then clearing. Lows 40-50. Northwest winds 7 to 12 mph until early morning becoming downslope 2 to 5 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 76-86. Lows 40-50. West winds 10 to 15 mph. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 77-87. Lows 44-54. $$ NVZ421-191430- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........23-33. * Mid Slope........30-40. * 24 hr trend......5 degrees warmer. * Max Humidity....... * Valleys..........39-49%. * Mid Slope........27-37%. * 24 hr trend......20% drier. * 20-Foot Winds...... * Valleys/Slope....North winds 10 to 17 mph with gusts to 25 mph shifting to the northeast 5 to 10 mph in the evening, then becoming downslope 2 to 5 mph after midnight. * Ridge Top........Northwest winds 10 to 15 mph with gusts to 25 mph shifting to the east with gusts to 30 mph after midnight. * Mixing Height......3600-4600 ft agl decreasing to 600 ft agl after midnight. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........60-70. * Mid Slope........54-64. * 24 hr trend......8 degrees warmer. * 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 northeast 9 to 14 mph in the afternoon. * Ridge Top........Northeast winds 9 to 14 mph. * Mixing Height......2700-3700 ft agl increasing to 6800-7800 ft agl in the afternoon. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Good increasing to excellent in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........28-38. * Mid Slope........37-47. * Max Humidity....... * Valleys..........30-40%. * Mid Slope........19-29%. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 15 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........North winds 10 to 15 mph in the evening, then becoming south 10 to 15 mph after midnight. * Mixing Height......3800-4800 ft agl in the evening then 200-500 ft agl. * Transport Winds....North 10 to 15 mph in the evening becoming light. * Ventilation........Excellent decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Sunny then becoming partly cloudy. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........66-76. * Mid Slope........60-70. * Min Humidity....... * Valleys..........8-18%. * Mid Slope........8-18%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........West winds 10 to 15 mph. * Mixing Height......800-1300 ft agl increasing to 7200-8200 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then clearing. Lows 33-43. Northwest winds 8 to 13 mph in the evening becoming downslope 2 to 5 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 73-83. Lows 33-43. West winds 10 to 15 mph. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 74-84. Lows 37-47. $$ CAZ272-191430- Greater Lake Tahoe and Truckee Area- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........27-37. * Mid Slope........27-37. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........50-60%. * Mid Slope........30-40%. * 24 hr trend......14% drier. * 20-Foot Winds...... * Valleys/Slope....East winds 8 to 13 mph with gusts to 20 mph until early morning becoming downslope 2 to 5 mph. * Ridge Top........East winds 15 to 25 mph with gusts to 35 mph. * Mixing Height......4000-5000 ft agl decreasing to 600 ft agl after midnight. * Transport Winds....East 10 to 15 mph. * Ventilation........Excellent decreasing to marginal after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........57-67. * Mid Slope........54-64. * 24 hr trend......8 degrees warmer. * 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. Gusts to 25 mph in the morning. * Mixing Height......2200-3200 ft agl increasing to 6300-7300 ft agl in the afternoon. * Transport Winds....East 10 to 15 mph. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........31-41. * Mid Slope........33-43. * Max Humidity....... * Valleys..........52-62%. * Mid Slope........26-36%. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........North winds 10 to 15 mph shifting to the south after midnight. * Mixing Height......3800-4800 ft agl in the evening then 200-500 ft agl. * Transport Winds....North 10 to 15 mph in the evening becoming light. * Ventilation........Very good decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Partly cloudy then becoming sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........62-72. * Mid Slope........59-69. * Min Humidity....... * Valleys..........15-25%. * Mid Slope........15-25%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......700-1200 ft agl increasing to 6400-7400 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 35-45. Downslope 2 to 5 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 67-77. Lows 35-45. Slope winds. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 67-77. Lows 36-46. $$ NVZ423-191430- West Humboldt Basin in Pershing County- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Mostly cloudy then becoming clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........30-40. * Mid Slope........33-41. * 24 hr trend......4 degrees warmer. * Max Humidity....... * Valleys..........37-47%. * Mid Slope........26-36%. * 24 hr trend......20% drier. * 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. Gusts to 25 mph in the evening. * Mixing Height......5100-6100 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........68-74. * Mid Slope........62-72. * 24 hr trend......7 degrees warmer. * Min Humidity....... * Valleys..........9-14%. * Mid Slope........9-15%. * 24 hr trend......4% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......3600-4600 ft agl increasing to 9100-10100 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........36-46. * Mid Slope........38-47. * Max Humidity....... * Valleys..........26-36%. * Mid Slope........19-29%. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds becoming south 10 to 15 mph after midnight. * Mixing Height......4900-5900 ft agl in the evening then 200-500 ft agl. * Transport Winds....Light winds. * Ventilation........Very good decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Partly cloudy. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........74-82. * Mid Slope........69-79. * Min Humidity....... * Valleys..........9-14%. * Mid Slope........10-15%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Southwest winds 10 to 15 mph. * Mixing Height......600-1000 ft agl increasing to 8400-9400 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then clearing. Lows 42-52. Downslope 2 to 5 mph. .THURSDAY...Clear. Highs 79-85. Lows 42-52. Slope winds. .FRIDAY...Partly cloudy. Highs 80-88. Lows 44-54. Slope winds. .SATURDAY...Clear. Highs 83-91. Lows 45-55. West winds 10 to 15 mph. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 82-92. Lows 48-57. $$ NVZ429-191430- Lahontan Basin including Churchill and Eastern Mineral Counties- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........29-39. * Mid Slope........33-43. * 24 hr trend......5 degrees warmer. * Max Humidity....... * Valleys..........33-43%. * Mid Slope........27-37%. * 24 hr trend......19% drier. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 15 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Northeast winds 10 to 15 mph. Gusts to 25 mph in the evening. * Mixing Height......4900-5900 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........64-74. * Mid Slope........60-70. * 24 hr trend......7 degrees warmer. * Min Humidity....... * Valleys..........7-12%. * Mid Slope........8-13%. * 24 hr trend......4% drier. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming north 7 to 12 mph in the afternoon. * Ridge Top........Light winds. * Mixing Height......3200-4200 ft agl increasing to 8400-9400 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........34-44. * Mid Slope........38-48. * Max Humidity....... * Valleys..........24-34%. * Mid Slope........18-28%. * 20-Foot Winds...... * Valleys/Slope....North winds 8 to 13 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Light winds becoming southeast 10 to 15 mph after midnight. * Mixing Height......4600-5600 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........71-81. * Mid Slope........66-76. * Min Humidity....... * Valleys..........8-13%. * Mid Slope........8-13%. * 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. * Mixing Height......600-1000 ft agl increasing to 7800-8800 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then clearing. Lows 40-50. North winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. .THURSDAY...Clear. Highs 75-85. Lows 40-50. Northwest winds 10 to 15 mph. .FRIDAY...Partly cloudy. Highs 76-86. Lows 44-54. Northwest winds 10 to 15 mph. .SATURDAY...Clear. Highs 79-89. Lows 45-55. West winds 10 to 15 mph. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 81-91. Lows 47-57. $$ CAZ270-278-NVZ458-191430- Surprise Valley California-Eastern Lassen County- Northern Washoe County- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........28-38. * Mid Slope........30-40. * 24 hr trend......4 degrees warmer. * Max Humidity....... * Valleys..........40-50%. * Mid Slope........29-39%. * 24 hr trend......23% drier. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......5300-6300 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........65-75. * Mid Slope........61-69. * 24 hr trend......7 degrees warmer. * Min Humidity....... * Valleys..........6-16%. * Mid Slope........11-19%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming east 7 to 12 mph in the afternoon. * Ridge Top........Light winds. * Mixing Height......3000-4000 ft agl increasing to 8500-9500 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear then becoming partly cloudy. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........34-44. * Mid Slope........36-46. * Max Humidity....... * Valleys..........41-51%. * Mid Slope........27-37%. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......4600-5600 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northwest 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Partly cloudy. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........71-81. * Mid Slope........67-75. * Min Humidity....... * Valleys..........9-19%. * Mid Slope........13-21%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........West winds 10 to 15 mph. * Mixing Height......600-1100 ft agl increasing to 8100-9100 ft agl in the afternoon. * Transport Winds....Light winds becoming west 10 to 15 mph in the afternoon. * Ventilation........Poor increasing to excellent in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy. Lows 38-48. Northwest winds 8 to 13 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 77-87. Lows 38-48. West winds 10 to 15 mph. .SUNDAY...Clear. Highs 79-89. Lows 39-49. .MEMORIAL DAY...Sunny. Highs 74-84. $$ CAZ271-191430- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........27-37. * Mid Slope........28-38. * 24 hr trend......Little change. * Max Humidity....... * Valleys..........50-60%. * Mid Slope........30-40%. * 24 hr trend......18% drier. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 5 to 10 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......5300-6300 ft agl in the evening then 200-500 ft agl. * Transport Winds....Northeast 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........64-74. * Mid Slope........62-70. * 24 hr trend......8 degrees warmer. * Min Humidity....... * Valleys..........13-21%. * Mid Slope........11-21%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......2800-3800 ft agl increasing to 7800-8800 ft agl in the afternoon. * Transport Winds....East 10 to 15 mph. * Ventilation........Very good increasing to excellent in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........32-42. * Mid Slope........35-45. * Max Humidity....... * Valleys..........52-62%. * Mid Slope........31-41%. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......4200-5200 ft agl in the evening then 200-500 ft agl. * Transport Winds....Light winds. * Ventilation........Very good decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Partly cloudy then becoming sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........69-79. * Mid Slope........66-76. * Min Humidity....... * Valleys..........15-25%. * Mid Slope........14-24%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......600-1000 ft agl increasing to 8200-9200 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 34-44. West winds 5 to 10 mph in the evening becoming downslope 2 to 5 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 73-83. Lows 34-44. Southwest winds 10 to 15 mph. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 71-81. Lows 35-45. $$ CAZ274-191430- Southern Mono County- 134 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........23-33. * Mid Slope........23-31. * 24 hr trend......5 degrees warmer. * Max Humidity....... * Valleys..........39-49%. * Mid Slope........31-41%. * 24 hr trend......15% drier. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 15 mph with gusts to 30 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........North winds 10 to 15 mph. * Mixing Height......3800-4800 ft agl decreasing to 600 ft agl after midnight. * Transport Winds....North 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .TUESDAY... * Sky/Weather........Sunny. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........57-67. * Mid Slope........53-63. * 24 hr trend......8 degrees warmer. * Min Humidity....... * Valleys..........9-19%. * Mid Slope........10-20%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......2600-3600 ft agl increasing to 6200-7200 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Good increasing to very good in the afternoon. .TUESDAY NIGHT... * Sky/Weather........Clear. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Min Temperature.... * Valleys..........28-38. * Mid Slope........28-37. * Max Humidity....... * Valleys..........34-44%. * Mid Slope........23-33%. * 20-Foot Winds...... * Valleys/Slope....North winds 7 to 12 mph with gusts to 20 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........Light winds. * Mixing Height......4400-5400 ft agl in the evening then 200-500 ft agl. * Transport Winds....North 10 to 15 mph. * Ventilation........Excellent decreasing to poor after midnight. .WEDNESDAY... * Sky/Weather........Sunny then becoming partly cloudy. * Chance of Thunder..0%. * Chc Wetting Rain...0%. * Max Temperature.... * Valleys..........63-73. * Mid Slope........59-69. * Min Humidity....... * Valleys..........9-19%. * Mid Slope........10-20%. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph. * Ridge Top........Light winds. * Mixing Height......1000-1500 ft agl increasing to 6700-7700 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Marginal increasing to very good in the afternoon. .Extended... .WEDNESDAY NIGHT...Partly cloudy in the evening then clearing. Lows 32-42. Downslope 2 to 5 mph. .THURSDAY THROUGH SATURDAY...Clear. Highs 69-79. Lows 32-42. Slope winds. .SUNDAY THROUGH MEMORIAL DAY...Clear. Highs 71-81. Lows 38-48. $$ .8 to 14 day outlook for (Tue May 26 through Mon Jun 1) Above normal temperatures and precipitation. = $$ http://weather.gov/reno