Spot Forecast
Issued by NWS Portland, ME

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FNUS71 KGYX 221359
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Spot Forecast for Grafton Farm RX...NH NHS
National Weather Service Gray ME
959 AM EDT Tue Sep 22 2026

Forecast is based on ignition time of 1100 EDT on September 22.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (207) 688-3224, if you have questions
or concerns with this forecast.

Mainly sunny skies continue today with temperatures warming into
the mid 60s. RH values drop into the 40%s. A light north to
northeast wind continues through the day.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 66.
Min humidity........45 percent.
Dewpoint............45.
Max apparent temp...66.
Wind (20 ft)........Light winds.
Mixing height.......5100 ft AGL.
Transport winds.....Northeast 3 to 7 mph.
Smoke dispersal.....Poor (8800 knot-ft) early in the morning
                    increasing to good (30400 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................13 increasing to 41.

TIME (EDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........24  22  19  14  17  10  14
Weather cov.....
Weather type....
Tstm cov........NO  NO  NO  NO  NO  NO  NO
CWR.............0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0
Temp............55  60  63  65  66  66  65
Dewpoint........46  46  45  44  44  44  45
RH..............72  60  52  46  45  45  48
Aparnt tmp (F)..55  60  63  65  66  66  65
20 FT wind dir..N   N   N   N   NE  NE  N
20 FT wind spd..0   1   1   1   1   1   1
20 FT wind gust.    2   2   2   2   2   2
Mix hgt (kft)...2.9 4.0 4.7 5.0 5.1 4.8 4.4
Transp wind dir.NE  N   N   N   N   N   NE
Transp wind spd.3   5   6   6   7   7   7
LVORI...........3   2   1   1   1   1   1
ADI.............13  24  34  36  44  41  38
Vrate kt-ft/1K..9   16  24  25  30  29  26
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent). Patchy fog early
                    in the evening, then areas of fog in the late
                    evening and overnight.
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 37.
Max humidity........100 percent.
Dewpoint............46 decreasing to 38.
Min apparent temp...38.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 5 to 6 mph.
Smoke dispersal.....Poor (1600 knot-ft).
LVORI...............7.
ADI.................4.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........23  35  34  28  21  15  12  7   6   5   12  9
Weather cov.....PTY PTY PTY ARS ARS ARS ARS ARS ARS ARS ARS ARS
Weather type....FOG FOG FOG FOG FOG FOG FOG FOG FOG FOG FOG FOG
Tstm cov........NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............61  56  51  48  47  45  43  41  40  39  38  38
Dewpoint........48  48  48  47  45  44  43  41  40  39  38  38
RH..............62  74  89  96  93  96  100 100 100 100 100 100
Aparnt tmp (F)..61  56  51  48  47  45  43  41  40  39  38  38
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..1   0   0   0   0   0   0   0   0   0   0   0
20 FT wind gust.2
Mix hgt (kft)...0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.N   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.6   6   5   5   5   5   5   5   5   5   5   5
LVORI...........3   3   7   8   7   8   10  10  10  10  10  10
ADI.............6   3   2   2   2   2   2   2   2   2   2   2
Vrate kt-ft/1K..3   2   2   2   2   2   2   2   2   2   2   2
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

$$
Forecaster...CLAIR
Requested by...Chris OBrien
Type of request...PRESCRIBED
.TAG 2622303.0/GYX
.DELDT 09/22/26
.FormatterVersion 2.0.0
.EMAIL chrisobrien_nifc@icloud.com,Christopher.s.obrien@dncr.nh.gov