FNUS76 KSTO 190013 FWSSTO Spot Forecast for Plumas Helitack Field Day...USFS National Weather Service Sacramento CA 513 PM PDT Mon May 18 2026 Forecast is based on forecast start time of 0000 PDT on May 20. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Dry and clear conditions through the end of the week and into the weekend. Min RH values on Wednesday will be in the upper teens to lower 20s, with recoveries into the 50s for RH values Wednesday night. RH values drop once again, but into the 20s for Thursday. Winds will be light during the morning on Wednesday and turn toward the SW in the afternoon at 5-7mph. Continued SW winds Wednesday evening at 5-8mph, but going light in the later evening and overnight hours. Winds turn toward the west Thursday at 5-7mph. No precipitation is expected through the end of the week and into the weekend. .WEDNESDAY... Sky/weather.........Sunny. Chance of pcpn......0 percent. Max temperature.....72-76. Min humidity........19-23 percent. Surface winds (mph).Light winds becoming southwest up to 6 mph in the afternoon. Wind (20 ft)........ Valley/lwr slopes..Light winds becoming southwest up to 6 mph in the afternoon. RIDGE/UPPER SLOPE..West around 8 mph. Pcpn amount.........0.00 inches. Chance of thunder...0 percent. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear. Chance of pcpn......0 percent. Min temperature.....43-47. Max humidity........52-57 percent. Surface winds (mph).Southwest winds 5 to 8 mph in the evening becoming light. Wind (20 ft)........ Valley/lwr slopes..Southwest winds 5 to 8 mph in the evening becoming light. RIDGE/UPPER SLOPE..East around 7 mph. Pcpn amount.........0.00 inches. Chance of thunder...0 percent. .THURSDAY... Sky/weather.........Sunny. Chance of pcpn......0 percent. Max temperature.....76-80. Min humidity........21-26 percent. Surface winds (mph).Light winds becoming west up to 6 mph in the afternoon. Wind (20 ft)........ Valley/lwr slopes..Light winds becoming west up to 6 mph in the afternoon. RIDGE/UPPER SLOPE..West around 4 mph. Pcpn amount.........0.00 inches. Chance of thunder...0 percent. .FORECAST DAYS 3 THROUGH 5... .FRIDAY... Mostly clear. Lows in the upper 40s. Highs in the upper 70s. Light winds. .SATURDAY... Clear. Lows in the mid 40s. Highs in the mid 70s. Light winds. .SUNDAY... Clear. Lows in the mid 40s. Highs in the upper 70s. Light winds. $$ Forecaster...JS Requested by...David Scott Type of request...OTHER .TAG 2613982.0/STO .DELDT 05/18/26 .FormatterVersion 2.0.0 .EMAIL david.scott@usda.gov