FNUS75 KREV 190421 FWSREV Spot Forecast for Casa Diablo RX...USFS National Weather Service Reno NV 921 PM PDT Mon May 18 2026 Forecast is based on ignition time of 0600 PDT on May 19. If conditions become unrepresentative...contact the National Weather Service in Reno. .DISCUSSION... * Warm trend with dry conditions prevail through the rest of the work week. * Winds will be generally light overnight but with gusts up to 15 mph from the southeast in the afternoon. * There is low potential for light showers and thunderstorms late this week into the weekend with chances below 5% at the moment. .TUESDAY... Sky/Weather.........Sunny. Temperature.........30-33 at ignition...Max 60-65. RH..................60-65% at ignition...Min 8-13%. 20-Foot Winds.......Winds northwest at 3-5 mph at ignition...otherwise northwest winds shifting to the northeast in the afternoon 3-7 mph. Gusts up to 15 mph in the afternoon. Chc Wetting Rain....0%. Chance of thunder...0%. Mixing Height.......200-500 ft agl then 7000-8700 ft agl in the afternoon. Transport Winds.....Light winds becoming north around 10 mph in the afternoon. Ventilation.........Poor to fair in the morning, then good to very good in the afternoon. .TUESDAY NIGHT... Sky/Weather.........Clear. Temperature.........Min 30-35. RH..................Max 58-63%. 20-Foot Winds.......North to northwest winds 2-7 mph after 4 PM. Chc Wetting Rain....0%. Chance of thunder...0%. Mixing Height.......8000 ft in the early evening, then 600 ft agl in the late evening and overnight. Transport Winds.....North around 10 mph in the evening becoming light overnight. Ventilation.........Very good in the early evening to poor in the late evening and overnight. .WEDNESDAY... Sky/Weather.........Sunny. Temperature.........Max 65-70. RH..................Min 9-14%. 20-Foot Winds.......Northwest in the early morning shifting to the southeast in the late morning and afternoon between 3-7 mph. Gusts up to 15 mph in the afternoon. Chc Wetting Rain....0%. Chance of thunder...0%. Mixing Height.......3900-4900 ft agl in the morning, then 8000-9000 ft agl in the afternoon. Transport Winds.....Light winds becoming northwest around 10 mph in the afternoon. Ventilation.........Poor to fair in the morning, then good to very good in the afternoon. $$ Forecaster...Crespo Requested by...Travis White Type of request...PRESCRIBED .TAG 2613727.2/REV .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL andrew.clark2@usda.gov,travis.white@usda.gov,lucas.hurley@usda.gov,alexander.teitelbaum@usda.gov