049
FNAK71 PAFC 070330
FWSAER
SPOT FORECAST FOR MASTADON FIRE...DIVISION OF FORESTRY
NATIONAL WEATHER SERVICE ANCHORAGE AK
730 PM AKDT SAT JUN 6 2026
FORECAST IS BASED ON FORECAST START TIME OF 2000 AKDT ON JUNE 06.
DISCUSSION
SCATTERED CLOUD COVER THIS EVENING IS EXPECTED TO INCREASE
OVERNIGHT WITH MAINLY CLOUDY TO MOSTLY CLOUDY CONDITIONS THROUGH
THE REMAINDER OF THE FORECAST PERIOD. AN ISOLATED SHOWER IS
POSSIBLE THROUGH LATE EVENING; HOWEVER, ANY SHOWER DEVELOPMENT
WILL LIKELY BE EAST OF THE FORECAST AREA. ISOLATED RAIN SHOWERS
ARE AGAIN POSSIBLE SUNDAY AFTERNOON WITH THE BEST CHANCE EAST OF
THE FORECAST AREA, FARTHER UP THE FOOTHILLS OF THE TALKEETNA
MOUNTAINS. EXPECT SOUTHERLY WINDS TO INCREASE THROUGH THE
AFTERNOON AND EVENING HOURS SATURDAY THROUGH MONDAY WITH WINDS
BECOMING LIGHT AND VARIABLE DURING THE OVERNIGHT AND EARLY
MORNING HOURS. COOLER TEMPERATURES ALONG WITH HIGHER RH VALUES
WILL PERSIST THROUGH THE FORECAST PERIOD.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
SHOWERS EARLY IN THE EVENING.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
CHANCE OF PCPN......20 PERCENT THROUGH LATE EVENING.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........77 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 10 MPH EARLY IN THE EVENING
BECOMING LIGHT. GUSTS TO 15 MPH THROUGH LATE
EVENING.
MIXING HEIGHT.......AROUND 3500 FT IN THE EVENING FALLING TO
AROUND 500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTH 5 TO 13 MPH.
PCPN AMOUNT.........0.02 INCHES.
TIME (AKDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........42 42 30 30 30 49 49 49 80 80
WEATHER COV.....ISO ISO
WEATHER TYPE....RW RW
CWR.............10 10 10 10 10 10 10 10 0 0
CHC OF PCPN (%).20 20 10 10 10 10 10 10 10 10
TEMP............59 58 56 53 50 49 47 46 46 44
RH..............50 52 54 57 63 64 72 73 75 77
20 FT WIND DIR..SW SW S S S S S S S S
20 FT WIND SPD..9 9 10 10 10 7 7 7 3 3
20 FT WIND GUST.13 13 13 13 13 9 9 9 6 6
MIX HGT (KFT)...3.4 3.4 2.5 1.5 0.8 0.6 0.5 0.5 0.5 0.6
TRANSP WIND DIR.S S S S S S S S S S
TRANSP WIND SPD.13 13 9 9 9 6 6 6 5 5
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
SHOWERS LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......20 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........61 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH EARLY IN
THE AFTERNOON, THEN SHIFTING TO THE SOUTHWEST
AROUND 7 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......AROUND 900 FT IN THE MORNING RISING TO AROUND
3300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
PCPN AMOUNT.........0.00 INCHES.
TIME (AKDT) 6 AM 9 AM NOON 3 PM
SKY (%).........80 83 71 84
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
CWR.............0 0 0 0
CHC OF PCPN (%).10 10 10 10
TEMP............45 49 52 54
RH..............76 70 65 62
20 FT WIND......S 3G6 SW 2G5 NW 2G5 W 5G6
MIX HGT (FT)....900 900 3300 3300
TRANSPORT WIND..S 5 SW 5 SW 8 S 10
SUNDAY NIGHT
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN SCATTERED RAIN
SHOWERS OVERNIGHT.
CWR.................8 PERCENT.
CHANCE OF PCPN......20 PERCENT IN THE EVENING INCREASING TO
30 PERCENT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........83 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 10 MPH BECOMING LIGHT.
MIXING HEIGHT.......AROUND 3000 FT IN THE EVENING FALLING TO
AROUND 1000 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTH 8 TO 12 MPH.
PCPN AMOUNT.........0.04 INCHES.
TIME (AKDT) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........92 93 91 93
WEATHER COV.....ISOLTD S CHC S CHC SCTTRD
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
CWR.............0 0 0 0
CHC OF PCPN (%).20 20 20 30
TEMP............55 53 47 43
RH..............61 64 73 81
20 FT WIND......SW 7G8 S 10G13 S 7G10 S 5G7
MIX HGT (FT)....2900 2900 1000 1000
TRANSPORT WIND..S 12 S 12 S 10 S 10
MONDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING PARTLY
SUNNY (65-75 PERCENT). SCATTERED RAIN SHOWERS
EARLY IN THE MORNING, THEN ISOLATED RAIN
SHOWERS LATE IN THE MORNING. SCATTERED RAIN
SHOWERS IN THE AFTERNOON.
CWR.................8 PERCENT.
CHANCE OF PCPN......30 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........63 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 6 TO 10 MPH. GUSTS
TO 15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......AROUND 1000 FT IN THE MORNING RISING TO
3200 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 15 MPH.
PCPN AMOUNT.........0.05 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........93 96 96 96 88 88 88 68 68 68 69 69
WEATHER COV.....SCT SCT SCT SCT ISO ISO ISO SCT SCT SCT SCT SCT
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
CWR.............10 10 10 10 10 10 10 10 10 10 0 0
CHC OF PCPN (%).30 30 30 30 20 20 20 30 30 30 30 30
TEMP............42 44 45 47 48 50 51 52 53 54 54 55
RH..............82 79 78 76 75 73 70 67 66 65 65 64
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..3 6 6 6 7 7 7 9 9 9 10 10
20 FT WIND GUST.5 10 10 10 13 13 13 14 14 14 14 14
MIX HGT (KFT)...1.0 1.0 1.0 1.0 2.1 2.1 2.1 2.1 2.1 2.1 3.2 3.2
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.8 8 8 8 12 12 12 13 13 13 15 15
FORECASTER...MARKLE
REQUESTED BY...IC ERVIN
TYPE OF REQUEST...WILDFIRE
.TAG 2614947.5/AER
.DELDT 06/06/26
.FORMATTERVERSION 2.0.0
.EMAIL DOF.ACDC.DISPATCH@ALASKA.GOV
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