110
FNAK71 PAFC 211536
FWSAER
SPOT FORECAST FOR JBER IPBC RX FIRE...USWFS
NATIONAL WEATHER SERVICE ANCHORAGE AK
736 AM AKDT THU MAY 21 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 AKDT ON MAY 21.
DISCUSSION
SCATTERED RAIN SHOWERS WILL CONTINUE THROUGH THIS AFTERNOON,
ALTHOUGH THE BEST CHANCE FOR SHOWER ACTIVITY NEAR THE FORECAST
AREA WILL BE THIS MORNING THROUGH AROUND NOON. LIGHT NORTHEASTERLY
WIND THIS MORNING WILL SHIFT TO THE SOUTH-SOUTHEAST AND BECOME
GUSTY THIS AFTERNOON WITH GUSTS UP TO 25 MPH. THESE WINDS ARE THEN
EXPECTED TO SHIFT TO THE SOUTH-SOUTHWEST FOR A TIME LATE THIS
EVENING INTO THE OVERNIGHT HOURS AS WINDS AND GUSTS DIMINISH.
SCATTERED SHOWERS ARE AGAIN POSSIBLE FRIDAY AFTERNOON AS ANOTHER
WEAK SYSTEM MOVES INTO COOK INLET. LIGHT EASTERLY WINDS FRIDAY
MORNING WILL LIKELY BECOME SOUTHEASTERLY BY AFTERNOON WITH GUSTS
TO 20 MPH POSSIBLE.
REST OF TODAY
SKY/WEATHER.........CLOUDY (80-90 PERCENT). SCATTERED RAIN SHOWERS
THROUGH THIS AFTERNOON.
CWR.................24 PERCENT EARLY DECREASING TO 0 PERCENT BY
LATE AFTERNOON.
CHANCE OF PCPN......50 PERCENT IN THE MORNING DECREASING TO 30
PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........61 PERCENT.
WIND (20 FT)........NORTHEAST AROUND 5 MPH THROUGH LATE MORNING,
THEN SHIFTING TO THE SOUTHEAST 7 TO 14 MPH BY
EARLY AFTERNOON. GUSTS TO 20 MPH POSSIBLE
AFTER 1 PM INCREASING TO 25 MPH BY 3 PM.
MIXING HEIGHT.......AROUND 900 FT THROUGH MID MORNING RISING TO
AROUND 2500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH THROUGH MID MORNING BECOMING
SOUTHEAST 7 TO 14 MPH, THEN SHIFTING TO THE
SOUTH AROUND 18 MPH LATE IN THE AFTERNOON.
VENTILATION RATE....POOR (690-4455 M^2/S).
PCPN AMOUNT.........0.03 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........95 95 93 93 92 92 90 88 86 85
WEATHER COV.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW
CWR.............20 20 20 20 10 10 10 0 0 0
CHC OF PCPN (%).50 50 50 40 40 40 40 30 30 30
TEMP............40 41 41 42 43 44 44 45 47 47
RH..............90 90 90 87 83 80 76 72 67 62
20 FT WIND DIR..NE NE NE NE NE SE SE SE SE S
20 FT WIND SPD..2 2 5 5 5 7 9 10 14 14
20 FT WIND GUST.3 3 6 6 6 14 18 22 22 23
MIX HGT (KFT)...0.9 0.9 2.2 2.2 2.2 2.2 2.2 2.2 2.4 2.4
TRANSP WIND DIR.S S SE SE SE S S S S S
TRANSP WIND SPD.5 5 7 7 7 14 14 15 18 18
VENT (M^2/S)....690 690 30753075307530753075307544554455
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SCATTERED RAIN
SHOWERS IN THE EVENING THEN ISOLATED RAIN
SHOWERS AFTER MIDNIGHT.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT DECREASING TO 20 PERCENT AFTER
MIDNIGHT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 39.
MAX HUMIDITY........88 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 14 MPH SHIFTING TO THE
SOUTH-SOUTHWEST 8 TO 14 MPH IN THE EVENING,
THEN BECOMING SOUTHWEST 4 TO 7 MPH OVERNIGHT.
GUSTS TO 225 MPH IN THE EVENING DIMINISHING TO
AROUND 10 MPH OVERNIGHT.
MIXING HEIGHT.......AROUND 2500 FT IN THE EVENING FALLING TO AROUND
500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH.
VENTILATION RATE....POOR (580-4455 M^2/S).
PCPN AMOUNT.........0.02 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........86 67 67 67 65 65 65 76 76 76 91 91
WEATHER COV.....SCT SCT SCT SCT SCT 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 (%).30 30 30 30 30 20 20 20 20 20 20 20
TEMP............45 45 44 44 43 42 41 40 40 39 39 39
RH..............65 63 65 67 69 73 77 81 84 85 87 87
20 FT WIND DIR..SE SE S S S SW SW SW SW SW SW SW
20 FT WIND SPD..16 16 14 14 12 10 9 8 8 7 5 5
20 FT WIND GUST.23 22 21 20 18 16 15 13 11 9 8 7
MIX HGT (KFT)...2.4 2.4 2.2 2.1 1.4 0.9 0.8 0.6 0.5 0.5 0.7 0.7
TRANSP WIND DIR.S S S S S S S SE SE SE SE SE
TRANSP WIND SPD.17 14 14 14 8 8 8 9 9 9 10 10
VENT (M^2/S)....4455445544554455580 580 580 580 580 580 894 894
FRIDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT). ISOLATED RAIN SHOWERS
EARLY IN THE MORNING, THEN SCATTERED RAIN
SHOWERS IN THE LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......20 PERCENT THROUGH MID MORNING INCREASING
TO 40 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 45.
MIN HUMIDITY........68 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH EARLY IN THE MORNING
BECOMING LIGHT EASTERLY WINDS, THEN BECOMING
SOUTHEAST AROUND 6 TO 9 MPH BY MID AFTERNOON.
GUSTS TO 20 MPH BY MID TO LATE AFTERNOON.
MIXING HEIGHT.......AROUND 600 FT THROUGH MID MORNING RISING TO
2800 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 11 MPH.
VENTILATION RATE....POOR (894-2855 M^2/S).
PCPN AMOUNT.........0.02 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........91 93 93 93 91 91 91 90 90 90 97 97
WEATHER COV.....ISO ISO ISO ISO SCT SCT SCT SCT SCT SCT CHC CHC
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 30 30 30 30 30 40 40
TEMP............39 39 40 40 41 42 43 44 44 44 44 44
RH..............88 88 88 87 85 82 78 74 72 70 68 68
20 FT WIND DIR..S S SE E E E SE SE SE SE SE SW
20 FT WIND SPD..7 5 5 5 3 3 3 6 7 7 8 8
20 FT WIND GUST.10 9 9 8 9 9 9 11 12 13 16 16
MIX HGT (KFT)...0.7 0.7 0.7 0.7 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8
TRANSP WIND DIR.SE S S S S S S S S S S S
TRANSP WIND SPD.10 9 9 9 8 8 8 8 9 10 11 11
VENT (M^2/S)....894 894 894 894 28552855285528552855285527612761
FORECASTER...MARKLE
REQUESTED BY...BRYAN QUIMBY
TYPE OF REQUEST...PRESCRIBED
.TAG 2613851.3/AER
.DELDT 05/21/26
.FORMATTERVERSION 2.0.0
.EMAIL BRYAN_QUIMBY@FWS.GOV,RAWLIN_MYERS@FWS.GOV
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