FNUS75 KREV 090440 FWSREV Spot Forecast for Alpine County Fuels Mitigation Program...Alpine County National Weather Service Reno NV 940 PM PDT Thu May 8 2025 Forecast is based on ignition time of 0800 PDT on May 09. If conditions become unrepresentative...contact the National Weather Service in Reno. .DISCUSSION... * Warm temperatures persist along with low relative humidity through Saturday. * Terrain driven winds continue overnight becoming from the southwest up to 10 mph during the afternoon. This combo will lead to very good to excellent vent rates. * A storm system may bring gusty winds, cooler temperatures, as well as rain and mountain snow showers very early next week. .FRIDAY... Sky/Weather.........Sunny. Temperature.........55-60 at ignition...Max 73-78. RH..................44-49% at ignition...Min 19-23%. 20-Foot Winds.......Upslope winds 3-7 mph becoming southwest 5-10 mph in the afternoon. Chc Wetting Rain....0%. Chance of thunder...5%. Mixing Height.......8300-9300 ft agl. Ventilation.........Fair to excellent. TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........5 5 4 14 14 Weather cov..... Weather type....NONE NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 0 Chc of thdr (%).0 0 10 10 10 Temp............55 68 75 77 76 RH..............49 30 22 20 21 20 ft wind......E 1 E 1 S 3 SW 8 SW 8 20 ft wind gust. 5 15 15 Mx ht msl (kft).5.2 5.2 8.9 9.3 9.3 Vrate kt-ft/1K..36 36 107 121 121 Ventrate Cat....FAIR FAIR EXNT EXNT EXNT .FRIDAY NIGHT... Sky/Weather.........Clear. Temperature.........Min 50-55. RH..................Max 45-50%. 20-Foot Winds.......Southwest winds 7-9 mph early in the evening becoming light. Chc Wetting Rain....0%. Chance of thunder...0%. Mixing Height.......1600-2600 ft agl. Transport Winds.....Southwest 10-15 mph. Ventilation.........Very good to marginal. TIME (PDT) 5 PM 8 PM 11 PM 2 AM Sky (%).........11 9 8 15 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Chc of thdr (%).0 0 0 0 Temp............76 65 58 54 RH..............22 36 47 46 20 FT wind......SW 9G15 SW 6G10 SW 5G10 SW 5G10 Mx ht msl (kft).7.2 1.6 1.5 1.5 Transport wind..SW 15 SW 10 SW 10 SW 10 Vrate kt-ft/1K..86 14 14 14 Ventrate Cat....VYGD MRGL MRGL MRGL $$ Forecaster...Crespo Requested by...Jim Lamb Type of request...PRESCRIBED .TAG 2511119.2/REV .DELDT 05/09/25 .FormatterVersion 2.0.0 .EMAIL jlamb@alpinecountyca.gov