523
FNAK72 PAFC 281437
FWSALU

Spot Forecast for FY 2026 Katmai Pile Burning...Wildland Fire Service (NPS)
National Weather Service ANCHORAGE AK
637 AM AKDT Mon Sep 28 2026

Forecast is based on ignition time of 0700 AKDT on September 28.
.DISCUSSION...

A stray shower or two may move over the site this morning with
another chance for light rain later this evening and tonight.
Otherwise, northerly flow across the region should promote drier
conditions for the next couple of days as high pressure builds
into Southwest Alaska on Tuesday. Light north to northwesterly
winds at or below 10 mph are expected to persist into tomorrow.

.TODAY...

Sky/weather.........Mostly cloudy (80-90 percent). Scattered rain
showers in the morning followed by isolated
                    showers in the evening/overnight.
CWR.................20 percent.
Chance of pcpn......50 percent.
Max temperature.....Around 49.
Min humidity........85 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 9 mph in
                    the late morning and afternoon.
Mixing height.......1600 ft AGL.
Transport winds.....Northwest 7 to 13 mph.
Pcpn amount.........0.04 inches.
Snowfall amount.....0.0 inches.

TIME (AKDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........83  83  83  81  81  81  88  88  88  84  84
Weather cov.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
CWR.............10  10  10  10  10  10  10  10  10  20  20
Chc of pcpn (%).30  30  30  30  30  30  40  40  40  50  50
Temp............40  40  40  42  44  46  47  48  49  49  49
RH..............96  97  97  96  94  91  88  86  85  85  86
20 FT wind dir..NW  NW  NW  NW  NW  NW  N   N   N   NW  NW
20 FT wind spd..3   3   3   5   5   5   6   6   6   9   9
20 FT wind gust.5   5   5   6   6   6   10  10  10  14  14
Mix hgt (kft)...0.4 0.4 0.4 1.4 1.4 1.4 1.4 1.4 1.4 1.6 1.6
Transp wind dir.N   N   N   N   N   N   NW  NW  NW  NW  NW
Transp wind spd.7   7   7   8   8   8   12  12  12  13  13

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Isolated rain
                    showers in the evening and overnight, then
                    isolated rain showers after 3 am.
CWR.................20 percent decreasing to 0 percent after 3 am.
Chance of pcpn......50 percent.
Min temperature.....Around 37.
Max humidity........95 percent.
Wind (20 ft)........Northwest winds 8 to 10 mph.
Mixing height.......600 ft AGL.
Transport winds.....North 12 to 13 mph.
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 (%).........84  82  82  82  79  79  79  74  74  74  74  74
Weather cov.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT ISO ISO
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
CWR.............20  20  20  20  20  20  20  20  20  20  0   0
Chc of pcpn (%).50  40  40  40  30  30  30  30  30  30  20  20
Temp............49  48  46  44  42  41  40  40  40  40  39  40
RH..............87  89  91  93  94  95  94  94  94  94  86  86
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..9   9   9   9   10  10  10  8   8   8   8   8
20 FT wind gust.14  15  15  15  15  15  15  15  15  15  9   9
Mix hgt (kft)...1.6 1.6 1.6 1.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7
Transp wind dir.NW  NW  NW  NW  N   N   N   N   N   N   N   N
Transp wind spd.13  12  12  12  12  12  12  12  12  12  12  12

.TUESDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    partly sunny (55-65 percent). Isolated rain
                    showers early in the morning.
CWR.................0 percent.
Chance of pcpn......20 percent.
Max temperature.....Around 44.
Min humidity........75 percent.
Wind (20 ft)........Northwest winds 6 to 8 mph.
Mixing height.......3300 ft AGL.
Transport winds.....North 9 to 12 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 (%).........74  65  65  65  49  49  49  57  57  57  72  72
Weather cov.....ISO
Weather type....RW
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).20  10  10  10  10  10  10  10  10  10  10  10
Temp............39  38  37  38  39  41  42  43  44  44  43  43
RH..............87  90  92  92  89  85  80  77  75  76  82  83
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..8   6   6   6   6   6   6   6   6   6   6   6
20 FT wind gust.9   9   9   9   9   9   9   10  10  10  8   8
Mix hgt (kft)...0.7 0.7 0.7 0.7 2.1 2.1 2.1 2.1 2.1 2.1 3.3 3.3
Transp wind dir.N   N   N   N   N   N   N   NW  NW  NW  NW  NW
Transp wind spd.12  10  10  10  9   9   9   12  12  12  12  12

$$
Forecaster...BLawson
Requested by...Nathan Gilmore
Type of request...PRESCRIBED
.TAG 2622215.7/ALU
.DELDT 09/28/26
.FormatterVersion 2.0.0
.EMAIL Nathan_Gilmore@nps.gov