716
FNAK71 PAFC 171601
FWSAER
SPOT FORECAST FOR JBER IPBC RX FIRE...USWFS
NATIONAL WEATHER SERVICE ANCHORAGE AK
801 AM AKDT SUN MAY 17 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 AKDT ON MAY 17.
DISCUSSION
SOME PERIODIC, GUSTY EASTERLY WINDS (VARYING FROM NORTHEAST THROUGH SOUTHEAST)
UP TO 15 MPH ARE POSSIBLE THROUGH THE MORNING HOURS BEFORE THE WINDS TAPER
OFF. THE BIGGEST UNCERTAINTY IS WHETHER THE SOUTHEASTERLY WINDS KICK IN AGAIN
LATE THIS AFTERNOON INTO THE EVENING HOURS. THIS LOOKS LIKELY TO HAPPEN, BUT
THESE WINDS SHOULD NOT BE AS STRONG AS YESTERDAY. FOR MONDAY, THE GUSTY
SOUTHEASTERLY WINDS IN THE AFTERNOON LOOK LIKELY AGAIN.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........56 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 10 MPH WITH GUSTS TO 15 MPH IN THE MORNING
BECOMING LIGHT. SOUTHEAST WIND INCREASING TO 10 MPH
GUST 18 MPH LATE AFTERNOON.
MIXING HEIGHT.......2400 FT AGL.
TRANSPORT WINDS.....EAST 20 MPH SHIFTING TO THE SOUTHEAST 15
TO 24 MPH IN THE AFTERNOON.
VENTILATION RATE....POOR (1647-4471 M^2/S).
PCPN AMOUNT.........0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........98 98 91 91 91 72 72 72 90 90
WEATHER COV.....SCH SCH CHC CHC CHC SCH SCH SCH CHC CHC
WEATHER TYPE....RN RN RN RN RN RN RN RN RN RN
CWR.............0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).20 20 30 30 30 20 20 20 30 30
TEMP............40 45 47 48 49 50 51 52 53 53
RH..............73 71 68 64 60 58 56 56 59 61
20 FT WIND DIR..NE NE NE NE NE E E E S S
20 FT WIND SPD..12 12 8 8 8 3 3 3 3 3
20 FT WIND GUST.13 13 10 10 10 12 12 12 8 8
MIX HGT (KFT)...0.6 0.6 2.1 2.1 2.1 2.1 2.1 2.1 2.4 2.4
TRANSP WIND DIR.E E SE SE SE S S S S S
TRANSP WIND SPD.21 21 17 17 17 13 13 13 16 16
VENT (M^2/S)....1647164742674267426742674267426744714471
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT. SCATTERED RAIN SHOWERS AFTER 3 AM.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 39.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........SOUTHEAST AROUND 10 MPH GUSTING TO 18 MPH THROUGH MID EVENING,
BECOMING LIGHT AROUND MIDNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 15 TO 22 MPH SHIFTING TO THE SOUTHWEST
AROUND 5 MPH OVERNIGHT, THEN SHIFTING TO THE
SOUTHEAST AFTER 3 AM.
VENTILATION RATE....POOR (376-4471 M^2/S).
PCPN AMOUNT.........0.01 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........90 90 90 90 91 91 91 89 89 89 76 76
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC ISO ISO ISO SCT SCT
WEATHER TYPE....RN RN RN RN RN RN RN 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 30 30 20 20 20 30 30
TEMP............51 51 49 48 45 44 43 41 39 39 39 40
RH..............62 64 68 72 75 81 85 88 90 92 91 91
20 FT WIND DIR..S S S S S S S SW SW SW N N
20 FT WIND SPD..3 6 6 6 3 3 3 5 5 5 1 1
20 FT WIND GUST.8 7 7 7 12 12 12 7 7 7 3 3
MIX HGT (KFT)...2.4 2.4 2.4 2.4 0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.8
TRANSP WIND DIR.S S S S S S S SW SW SW SE SE
TRANSP WIND SPD.16 13 13 13 8 8 8 5 5 5 5 5
VENT (M^2/S)....4471447144714471376 376 376 376 376 376 517 517
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SCATTERED RAIN
SHOWERS.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........57 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 MPH INCREASING TO SOUTHEAST 15 GUST 25 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......2900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 14 MPH.
VENTILATION RATE....POOR TO FAIR (517-6621 M^2/S).
PCPN AMOUNT.........0.01 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........76 82 82 82 73 73 73 83 83 83 89 89
WEATHER COV.....SCT ISO ISO ISO SCT SCT SCT ISO ISO ISO SCH SCH
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 20 20 20 30 30 30 20 20 20 20 20
TEMP............40 40 43 45 46 48 49 50 51 52 52 53
RH..............90 90 87 84 82 76 70 65 63 61 59 59
20 FT WIND DIR..N NE NE NE E E E S S SE SE SE
20 FT WIND SPD..1 1 1 1 1 1 1 5 5 10 14 15
20 FT WIND GUST.3 5 5 5 12 12 15 22 25
MIX HGT (KFT)...0.8 0.8 0.8 0.8 2.8 2.8 2.8 2.8 2.8 2.8 2.9 2.9
TRANSP WIND DIR.SE SE SE SE S S S S S S SE SE
TRANSP WIND SPD.5 6 6 6 7 7 7 8 8 8 15 24
VENT (M^2/S)....517 517 517 517 27922792279227922792279266216621
FORECASTER...ANCHORAGE WFO
REQUESTED BY...BRYAN QUIMBY
TYPE OF REQUEST...PRESCRIBED
.TAG 2613851.0/AER
.DELDT 05/17/26
.FORMATTERVERSION 2.0.0
.EMAIL RAWLIN_MYERS@FWS.GOV,BRYAN_QUIMBY@FWS.GOV
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