872
FNAK71 PAFC 061522
FWSAER
SPOT FORECAST FOR LITTLE GRANITE CREEK RX
NATIONAL WEATHER SERVICE ANCHORAGE AK
722 AM AKDT WED MAY 6 2026
COORECTED TO INCLUDE POTENTIAL FOR SNOW ACCUMULATION LATE
TONIGHT/EARLY THURSDAY.
FORECAST IS BASED ON IGNITION TIME OF 0900 AKDT ON MAY 06.
DISCUSSION
AN UPPER LEVEL TROUGH WILL MOVE NORTHEASTWARD ACROSS SOUTHCENTRAL
TODAY WITH THE SURFACE LOW SOUTH OF THE SOUND THIS MORNING
LIFTING INTO SOUTHCENTRAL OVER THE NEXT 24 HOURS. MOST OF THE
SHOWER ACTIVITY THIS MORNING WILL REMAIN OVER THE INLET AND THE
MOUNTAINS, BUT WILL SLOWLY SHIFT EAST THROUGH THE DAY, INCREASING
CHANCES FOR LIGHT RAIN SHOWERS TO DEVELOP OVER THE BURN AREA THIS
AFTERNOON. RAIN IS MOST LIKELY THIS EVENING AND THROUGH THE
OVERNIGHT HOURS WITH CHANCES FOR SHOWERS CONTINUING THROUGH
THURSDAY MORNING. COLDER AIR MOVING IN OVERNIGHT WILL CAUSE RAIN
TO MIX WITH OR CHANGE TO SNOW LATE TONIGHT. THERE IS A CHANCE OF
SOME LIGHT SLUSHY SNOW ACCUMULATION EARLY THURSDAY MORNING.
WINDS WILL STEADILY INCREASE OUT OF THE SOUTHWEST THROUGH THE DAY
AS LOWER PRESSURE DEVELOPS IN THE COPPER VALLEY.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SCATTERED RAIN
SHOWERS LATE IN THE MORNING, BECOMING MORE NUMEROUS
IN THE MID TO LATE AFTERNOON.
CWR.................20 PERCENT INCREASING TO 65 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF PCPN......65 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 48.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 7 TO 10 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 3 TO 12 MPH.
VENTILATION RATE....POOR (235-2180 M^2/S).
PCPN AMOUNT.........0.05 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........81 81 81 81 80 80 80 78 78
WEATHER COV.....SCT SCT SCT SCT NUM NUM NUM WID WID
WEATHER TYPE....RW RW RW RW RW RW RW RW RW
CWR.............20 20 20 20 20 20 20 70 70
CHC OF PCPN (%).30 50 50 50 70 70 70 80 80
TEMP............38 42 45 46 47 48 48 47 47
RH..............77 69 62 60 58 58 58 61 62
20 FT WIND DIR..W SW SW SW SW SW SW W W
20 FT WIND SPD..2 3 3 3 7 7 7 9 9
20 FT WIND GUST.5 5 5 5 9 9 9 13 13
MIX HGT (KFT)...0.6 2.0 2.0 2.0 2.0 2.0 2.0 1.6 1.6
TRANSP WIND DIR.SW SW SW SW SW SW SW W W
TRANSP WIND SPD.3 6 6 6 9 9 9 12 12
VENT (M^2/S)....235 19611961196119611961196121802180
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). WIDESPREAD RAIN
SHOWERS IN THE EVENING AND OVERNIGHT, THEN RAIN
AND SNOW AFTER 3 AM.
CWR.................65 PERCENT DECREASING TO 29 PERCENT AFTER 3 AM.
CHANCE OF PCPN......80 PERCENT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........76 PERCENT.
WIND (20 FT)........WEST-SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
15 MPH IN THE EVENING, THEN BECOMING LIGHT OVERNIGHT.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
VENTILATION RATE....POOR (533-2180 M^2/S).
PCPN AMOUNT.........0.17 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........78 82 82 82 88 88 88 79 79 79 72 72
WEATHER COV.....WID WID WID WID WID WID WID WID WID WID DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RS RS
CWR.............70 70 70 70 70 70 70 70 70 70 30 30
CHC OF PCPN (%).80 80 80 80 80 80 80 80 80 80 80 80
TEMP............46 45 44 42 41 40 39 38 37 37 37 35
RH..............62 63 64 66 70 71 72 74 74 74 74 76
20 FT WIND DIR..W SW SW SW W W W W W W SW SW
20 FT WIND SPD..9 8 8 8 5 5 5 5 5 5 2 2
20 FT WIND GUST.13 13 13 13 9 9 9 8 8 8 6 6
MIX HGT (KFT)...1.6 1.6 1.6 1.6 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.7
TRANSP WIND DIR.W SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.12 9 9 9 6 6 6 6 6 6 5 5
VENT (M^2/S)....2180218021802180611 611 611 611 611 611 533 533
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
MOSTLY SUNNY (45-55 PERCENT). RAIN AND SNOW IN
THE MORNING, THEN SCATTERED RAIN SHOWERS IN THE
AFTERNOON.
CWR.................29 PERCENT DECREASING TO 0 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 45.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 14 MPH.
VENTILATION RATE....POOR TO FAIR (533-6495 M^2/S).
PCPN AMOUNT.........0.06 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........72 49 49 49 40 40 40 57 57 57 59 59
WEATHER COV.....DEF LKY LKY LKY CHC CHC CHC CHC CHC CHC SCT SCT
WEATHER TYPE....RS RS RS RS RS RS RS RN RN RN RW RW
CWR.............30 30 30 30 30 30 30 30 30 30 0 0
CHC OF PCPN (%).80 70 70 70 30 30 30 40 40 40 30 30
TEMP............35 34 35 36 39 41 43 44 45 45 44 44
RH..............76 76 74 69 63 58 55 52 51 50 51 51
20 FT WIND DIR..SW W W W SW SW SW W W W W W
20 FT WIND SPD..2 2 2 2 3 3 3 5 5 5 6 6
20 FT WIND GUST.6 7 7 7 5 5 5 8 8 8 13 13
MIX HGT (KFT)...0.7 0.7 0.7 0.7 2.9 2.9 2.9 2.9 2.9 2.9 4.4 4.4
TRANSP WIND DIR.SW SW SW SW S S S SW SW SW S S
TRANSP WIND SPD.5 6 6 6 8 8 8 12 12 12 14 14
VENT (M^2/S)....533 533 533 533 40004000400040004000400064956495
FORECASTER...JONES
REQUESTED BY...JERED KEMP
TYPE OF REQUEST...PRESCRIBED
.TAG 2612149.2/AER
.DELDT 05/06/26
.FORMATTERVERSION 2.0.0
.EMAIL JERED.KEMP@ALASKA.GOV
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