300 FNAK71 PAFC 060324 FWSAER Spot Forecast for Mastadon Fire...Division of Forestry National Weather Service Anchorage AK 724 PM AKDT Fri Jun 5 2026 Forecast is based on forecast start time of 2000 AKDT on June 05. .DISCUSSION... Warm and dry conditions will continue through the evening hours along with light southwesterly winds. An isolated gust around 10 to 15 mph is possible through tonight before winds diminish and become more southeasterly. Isolated showers are beginning to develop both north and south of the forecast area; it is possible that a shower may develop around or over the forecast area by late this evening. Showers may linger into the overnight hours. Saturday is expected to be cooler, with another chance for scattered showers starting around noon. An isolated thunderstorm cannot be ruled out for Saturday afternoon. While low probability, a wetting rain is possible in any heavy shower that develops for Saturday. A cooler and cloudier trend continues into Sunday along with isolated showers. .TONIGHT... Sky/weather.........Partly cloudy (30-40 percent). A slight chance of rain showers late this evening through the overnight hours. CWR.................10 percent. Chance of pcpn......20 percent. Tstm Coverage.......None. Min temperature.....Around 44. Max humidity........76 percent. Wind (20 ft)........South to southwest wind less than 5 mph becoming southeast around 6 mph overnight. Mixing height.......Around 5000 ft falling to around 400 ft AGL overnight. Transport winds.....Southwest around 7 mph shifting to the south 6 to 9 mph in the late evening and overnight. Pcpn amount.........0.04 inches. TIME (AKDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........0 0 11 11 11 47 47 47 29 29 Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH Weather type....RW RW RW RW RW RW RW RW CWR.............0 0 0 0 0 0 0 0 10 10 Chc of pcpn (%).20 20 20 20 20 20 20 20 10 10 Temp............68 66 62 56 52 50 47 46 46 44 RH..............35 42 49 56 62 66 69 70 71 76 20 FT wind dir..SW SW S E E SE SE SE S S 20 FT wind spd..4 4 2 2 2 6 6 6 6 6 20 FT wind gust.8 7 4 4 4 8 8 8 8 8 Mix hgt (kft)...4.9 4.9 4.4 3.4 2.6 1.4 0.7 0.4 0.4 0.7 Transp wind dir.SW SW S S S S S S S S Transp wind spd.7 7 6 6 6 8 9 9 8 8 .SATURDAY... Sky/weather.........Partly cloudy (35-45 percent). An isolated rain shower late morning with scattered rain showers in the afternoon. Slight chance of a thunderstorm in the afternoon. CWR.................10 percent decreasing to 0 percent late in the afternoon. Chance of pcpn......10 percent through late morning increasing to 40 percent. Tstm Coverage.......Isolated. Max temperature.....Around 63. Min humidity........43 percent. Wind (20 ft)........South winds around 6 mph early in the morning becoming light, then becoming southwest 6 to 10 mph in the late morning and afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......Around 900 feet through mid morning rising to around 4200 ft AGL. Transport winds.....South 8 to 13 mph. Pcpn amount.........0.04 inches. TIME (AKDT) 6 AM 9 AM NOON 3 PM Sky (%).........29 29 40 44 Weather cov..... SCTTRD SCTTRD Weather type....NONE NONE RNSHWR RNSHWR CWR.............10 10 10 10 Chc of pcpn (%).10 10 30 40 Temp............45 53 61 63 RH..............75 60 48 43 20 FT wind......S 6G8 S 3G5 SW 6G9 SW 9G14 Mix hgt (ft)....900 900 3900 4200 Transport wind..S 8 S 8 S 9 S 12 .SATURDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent) then becoming cloudy (85-95 percent). Scattered rain showers early in the evening. Isolated rain showers after 3 am. CWR.................0 percent. Chance of pcpn......50 percent in the evening decreasing to 10 percent by midnight. Tstm Coverage.......None. Min temperature.....Around 42. Max humidity........81 percent. Wind (20 ft)........Southwest winds 6 to 10 mph in the evening and overnight becoming light by early Sunday morning. Mixing height.......Around 3800 ft in the evening falling to around 500 ft AGL overnight. Transport winds.....South 6 to 13 mph. Pcpn amount.........0.02 inches. TIME (AKDT) 6 PM 9 PM MIDNGT 3 AM Sky (%).........40 40 26 39 Weather cov.....SCTTRD SCTTRD Weather type....RNSHWR RNSHWR NONE NONE CWR.............0 0 0 0 Chc of pcpn (%).50 30 10 10 Temp............60 56 50 43 RH..............50 57 72 79 20 FT wind......SW 9G14 SW 9G13 SW 8G12 S 5G7 Mix hgt (ft)....3700 3300 1600 500 Transport wind..S 13 S 12 S 9 S 6 .SUNDAY... Sky/weather.........Mostly cloudy (80-90 percent). Isolated rain showers. CWR.................0 percent. Chance of pcpn......20 percent. Tstm Coverage.......None. Max temperature.....Around 57. Min humidity........64 percent. Wind (20 ft)........Light winds becoming southwest 5 to 10 mph in the late morning and afternoon. Mixing height.......Around 900 ft in the morning rising to around 3700 ft AGL. Transport winds.....Southwest 6 to 10 mph. Pcpn amount.........0.00 inches. TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........91 92 92 92 80 80 80 93 93 93 89 89 Weather cov.....ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO Weather type....RW RW RW RW RW RW RW RW RW RW RW RW CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of pcpn (%).20 20 20 20 20 20 20 20 20 20 20 20 Temp............44 44 46 48 49 51 52 53 54 55 56 56 RH..............80 80 78 76 74 71 67 64 64 65 66 66 20 FT wind dir..S SW SW SW SW SW SW SW SW SW SW SW 20 FT wind spd..2 1 1 1 5 5 5 7 7 7 10 10 20 FT wind gust.3 7 7 7 9 9 9 15 15 Mix hgt (kft)...1.0 1.0 1.0 1.0 2.3 2.3 2.3 2.5 2.7 2.9 3.4 3.7 Transp wind dir.S S S S SW SW SW SW SW SW SW SW Transp wind spd.7 6 6 6 8 8 8 8 8 8 10 10 $$ Forecaster...Markle Requested by...IC Ervin Type of request...WILDFIRE .TAG 2614947.2/AER .DELDT 06/05/26 .FormatterVersion 2.0.0 .EMAIL dof.acdc.dispatch@alaska.gov