638
FNAK71 PAFC 171449
FWSAER
SPOT FORECAST FOR LITTLE GRANITE CREEK RX...SOA DFFP
NATIONAL WEATHER SERVICE ANCHORAGE AK
649 AM AKDT SUN MAY 17 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 AKDT ON MAY 17.
DISCUSSION
GUSTY EASTERLY WINDS WILL CONTINUE THROUGH MID MORNING BEFORE
DIMINISHING AND BECOMING VARIABLE. CHANCE FOR LIGHT RAIN SHOWERS
INCREASES THIS AFTERNOON, WITH 40-50% CHANCE OF RAIN THROUGH
MONDAY. HIGH TEMPERATURES TODAY AND MONDAY WILL BE IN THE MID
50'S.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
LATE IN THE MORNING, THEN SLIGHT CHANCE OF RAIN
IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......40 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 10 MPH LATE IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 8
MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....EAST 13 TO 17 MPH SHIFTING TO THE SOUTH 15 TO
18 MPH IN THE AFTERNOON.
VENTILATION RATE....POOR TO FAIR (862-6276 M^2/S).
PCPN AMOUNT.........0.01 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........95 85 85 85 70 70 70 82 82
WEATHER COV.....CHC CHC CHC CHC SCH SCH SCH SCH SCH
WEATHER TYPE....RN RN RN RN RN RN RN RN RN
CWR.............0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).30 40 40 40 20 20 20 20 20
TEMP............41 44 48 50 52 54 54 54 53
RH..............53 48 44 41 39 38 38 39 42
20 FT WIND DIR..NE NE NE NE SW SW SW S S
20 FT WIND SPD..10 8 8 8 3 3 3 8 8
20 FT WIND GUST.13 12 12 12 9 9 9 9 9
MIX HGT (KFT)...0.6 3.0 3.0 3.0 3.0 3.0 3.0 2.8 2.8
TRANSP WIND DIR.E SE SE SE S S S SW SW
TRANSP WIND SPD.13 17 17 17 15 15 15 18 18
VENT (M^2/S)....862 62766276627662766276627657585758
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF
RAIN EARLY IN THE EVENING, THEN CHANCE OF RAIN
IN THE EVENING. SCATTERED RAIN SHOWERS
OVERNIGHT.
CWR.................0 PERCENT INCREASING TO 11 PERCENT AFTER 3 AM.
CHANCE OF PCPN......40 PERCENT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........76 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 8 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH DECREASING TO 6 TO 7 MPH
IN THE LATE EVENING AND OVERNIGHT.
VENTILATION RATE....POOR (470-5758 M^2/S).
PCPN AMOUNT.........0.03 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........82 84 84 84 80 80 80 80 80 80 84 84
WEATHER COV.....SCH CHC CHC CHC CHC CHC CHC SCT SCT SCT 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 10 10
CHC OF PCPN (%).20 30 30 30 30 30 30 40 40 40 40 40
TEMP............52 50 48 46 44 43 41 40 39 38 38 38
RH..............44 46 51 56 60 64 68 73 75 75 76 76
20 FT WIND DIR..S SW SW SW SW SW SW W W W W W
20 FT WIND SPD..8 7 7 7 6 6 6 2 2 2 2 2
20 FT WIND GUST.9 8 8 8 12 12 12 6 6 6 5 5
MIX HGT (KFT)...2.8 2.8 2.8 2.8 0.6 0.6 0.6 0.6 0.6 0.6 0.8 0.8
TRANSP WIND DIR.SW SW SW SW SW SW SW S S S SW SW
TRANSP WIND SPD.18 13 13 13 7 7 7 6 6 6 6 6
VENT (M^2/S)....5758575857585758470 470 470 470 470 470 549 549
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SCATTERED RAIN
SHOWERS.
CWR.................11 PERCENT DECREASING TO 0 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 9 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4600 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH.
VENTILATION RATE....POOR TO FAIR (549-6213 M^2/S).
PCPN AMOUNT.........0.03 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........84 82 82 82 75 75 75 78 78 78 89 89
WEATHER COV.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT CHC CHC
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 (%).40 30 30 30 30 30 30 30 30 30 30 30
TEMP............38 38 40 42 44 46 48 50 50 51 52 51
RH..............76 75 69 63 58 53 48 44 43 41 40 40
20 FT WIND DIR..W W W W S S S S S S S S
20 FT WIND SPD..2 2 2 2 2 2 2 5 5 5 9 9
20 FT WIND GUST.5 5 5 5 6 6 6
MIX HGT (KFT)...0.8 0.8 0.8 0.8 3.8 3.8 3.8 3.8 3.8 3.8 4.6 4.6
TRANSP WIND DIR.SW S S S S S S S S S S S
TRANSP WIND SPD.6 6 6 6 9 9 9 12 12 12 12 12
VENT (M^2/S)....549 549 549 549 53185318531853185318531862136213
FORECASTER...MITCHELL
REQUESTED BY...JERED KEMP
TYPE OF REQUEST...PRESCRIBED
.TAG 2613745.1/AER
.DELDT 05/17/26
.FORMATTERVERSION 2.0.0
.EMAIL JERED.KEMP@ALASKA.GOV
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