046
FNAK71 PAFC 181507
FWSAER
SPOT FORECAST FOR GRANDVIEW...DIVISION OF FORESTRY & FIRE PROTECTION
NATIONAL WEATHER SERVICE ANCHORAGE AK
707 AM AKDT THU JUN 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 AKDT ON JUNE 18.
DISCUSSION
ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE ALONG THE WESTERN
SLOPES OF THE KENAI MOUNTAINS THIS AFTERNOON WITH GREATER CHANCES
FRIDAY AFTERNOON. LIGHT WINDS ABOVE THE SURFACE WILL KEEP ANY
CONVECTION FROM MOVING TOO FAR OFF THE MOUNTAINS TODAY AND OVERALL
CONVECTIVE CHANCES NEAR THE WILDFIRE PERIMETER REMAIN LOW. A SYSTEM
MOVING THROUGH THE REGION TOMORROW WILL ALLOW FOR GREATER CONVECTION
CHANCES BUT FLOW STILL REMAINS LIGHT OVER THE WESTERN KENAI PENINSULA
AND STORMS WILL ONCE AGAIN STRUGGLE TO SURVIVE IF THEY MOVE AWAY FROM
THE HIGHER TERRAIN. LIGHT WEST TO NORTHWEST WINDS TODAY BECOMING VARIABLE
OVERNIGHT. SURFACE WINDS WILL INCREASE SLIGHTLY TOMORROW AS FLOW INCREASES
UP COOK INLET AND OVER FAR WESTERN KENAI PENINSULA. MINIMUM RELATIVE HUMIDITY
VALUES EXPECTED TO FALL INTO THE UPPER 30S TO 40S BOTH DAYS, IMPROVING
DURING THE OVERNIGHT HOURS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....WEST AROUND 1 MPH SHIFTING TO THE NORTH 3 TO 8
MPH IN THE LATE MORNING AND AFTERNOON.
PCPN AMOUNT.........0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 32 32 37 37 37 45 45 45 48 48
WEATHER COV.....
WEATHER TYPE....
CWR.............0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............48 51 55 58 62 65 67 68 69 70 71
RH..............83 78 70 63 57 53 51 49 46 44 41
20 FT WIND DIR..NE NE NE N N N NW NW NW NW NW
20 FT WIND SPD..2 2 2 2 2 2 3 3 3 3 3
20 FT WIND GUST. 5 5 5 7 7 7 12 12
MIX HGT (KFT)...0.7 0.7 0.7 3.6 3.6 3.6 3.6 3.6 3.6 4.3 4.3
TRANSP WIND DIR.W W W N N N N N N N N
TRANSP WIND SPD.1 1 1 3 3 3 7 7 7 8 8
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......10 PERCENT.
TSTM COVERAGE.......NONE.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........83 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH
EARLY IN THE EVENING, THEN BECOMING LIGHT IN
THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH SHIFTING TO THE
SOUTHWEST 5 TO 7 MPH IN THE LATE EVENING AND
OVERNIGHT.
PCPN AMOUNT.........0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........48 55 55 55 54 54 54 57 57 57 66 66
WEATHER COV.....
WEATHER TYPE....
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 10 0 0
TEMP............71 70 69 66 62 58 55 53 51 50 49 49
RH..............42 43 45 48 52 62 68 70 75 77 79 83
20 FT WIND DIR..NW NW NW NW W W W SW SW SW N N
20 FT WIND SPD..3 5 5 5 3 3 3 3 3 3 2 2
20 FT WIND GUST.12 13 13 13 12 12 12 7 7 7 3 3
MIX HGT (KFT)...4.3 4.3 4.3 4.3 0.4 0.4 0.4 0.4 0.4 0.4 0.6 0.6
TRANSP WIND DIR.N NW NW NW W W W SW SW SW SW SW
TRANSP WIND SPD.8 8 8 8 7 7 7 5 5 5 5 5
JUNETEENTH
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SCATTERED RAIN
SHOWERS LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
TSTM COVERAGE.......NONE.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 9 MPH.
PCPN AMOUNT.........0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........66 67 67 67 65 65 65 53 53 53 44 44
WEATHER COV..... SCT SCT
WEATHER TYPE.... RW RW
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 10 30 30
TEMP............49 52 56 59 63 66 68 70 71 72 72 73
RH..............82 77 73 63 56 49 46 45 44 42 41 39
20 FT WIND DIR..N N N N W W W W W W W W
20 FT WIND SPD..2 1 1 1 2 2 2 5 5 5 7 7
20 FT WIND GUST.3 2 2 2 5 5 5 6 6 6 10 10
MIX HGT (KFT)...0.6 0.6 0.6 0.6 2.4 2.4 2.4 2.4 2.4 2.4 3.0 3.0
TRANSP WIND DIR.SW W W W W W W W W W SW SW
TRANSP WIND SPD.5 3 3 3 5 5 5 7 7 7 9 9
FORECASTER...PIETRYCHA
REQUESTED BY...TERESA ROSE
TYPE OF REQUEST...WILDFIRE
.TAG 2615761.0/AER
.DELDT 06/18/26
.FORMATTERVERSION 2.0.0
.EMAIL TERESA.ROSE@ALASKA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page