980
FNUS71 KGYX 201905
FWSGYX
SPOT FORECAST FOR RATTLESNAKE...FS
NATIONAL WEATHER SERVICE GRAY ME
305 PM EDT THU AUG 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 1500 EDT ON AUGUST 20.
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.
DISCUSSION
MOSTLY CLOUDY CONDITIONS WILL PERSIST INTO THIS EVENING WITH ANY
LIGHT RAIN SHOWERS EXPECTED TO REMAIN SOUTH OF THE FIRE LOCATION.
SURFACE WINDS WILL BE LIGHT AND MAINLY OUT OF THE WEST THIS
AFTERNOON BEFORE BECOMING LIGHT AND VARIABLE THIS EVENING AND
TONIGHT. EXCELLENT RH RECOVERY IS EXPECTED TONIGHT.
FRIDAY WILL BE DRY AND MOSTLY SUNNY WITH A HIGH TEMPERATURE IN
THE UPPER 70S AND RH FALLING INTO THE UPPER 30S BY THE AFTERNOON.
WINDS WILL BE LIGHT AND VARIABLE DURING THE DAY FRIDAY WITH GOOD
MIXING HEIGHTS. HOWEVER, WITH LIGHT TRANSPORT WINDS SMOKE
DISPERSAL IS ONLY EXPECTED TO BE FAIR.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........39 PERCENT.
DEWPOINT............51.
MAX APPARENT TEMP...77.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......6400 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 12 MPH.
SMOKE DISPERSAL.....EXCELLENT (64300 KNOT-FT) THIS AFTERNOON.
LVORI...............1.
ADI.................78 DECREASING TO 55 LATE IN THE AFTERNOON.
CEILING (KFT).......9.0 INCREASING TO 14.
TIME (EDT) 3PM 4PM 5PM
SKY (%).........85 86 88
WEATHER COV.....
WEATHER TYPE....
TSTM COV........NO NO NO
CWR.............0 0 0
CHC OF THDR (%).0 0 0
TEMP............77 76 75
DEWPOINT........51 51 52
RH..............40 42 45
APARNT TMP (F)..77 76 75
20 FT WIND DIR..W W W
20 FT WIND SPD..4 3 3
20 FT WIND GUST.7 6 6
MIX HGT (KFT)...6.4 5.8 4.6
TRANSP WIND DIR.W W W
TRANSP WIND SPD.12 12 10
LVORI...........1 1 1
ADI.............81 75 55
VRATE KT-FT/1K..64 58 41
VENTRATE CAT....GD FR FR
CEILING (KFT)...9.0 12 14
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........93 PERCENT.
DEWPOINT............52 DECREASING TO 48 AFTER 3 AM.
MAX APPARENT TEMP...74.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 7 TO 9 MPH SHIFTING TO THE NORTH 6 TO
7 MPH OVERNIGHT.
SMOKE DISPERSAL.....FAIR (23900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2100 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................34 DECREASING TO 5.
CEILING (KFT).......14 INCREASING TO 25.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........93 92 93 94 84 60 40 22 15 18 20 29
WEATHER COV.....
WEATHER TYPE....
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............74 70 67 63 61 59 58 56 55 52 52 51
DEWPOINT........53 54 53 53 53 53 53 52 51 50 49 48
RH..............48 57 61 70 75 80 83 86 86 93 89 89
APARNT TMP (F)..74 70 67 63 61 59 58 56 55 52 52 51
20 FT WIND DIR..W NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..2 1 1 1 2 2 2 2 2 2 2 2
20 FT WIND GUST.5 2 2 2 5 5 5 5 5 5 5 5
MIX HGT (KFT)...3.0 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W NW NW NW N N N N N N N N
TRANSP WIND SPD.9 7 7 7 7 7 7 7 7 7 6 6
LVORI...........1 3 3 3 4 5 5 6 6 6 6 6
ADI.............34 7 3 3 3 3 3 3 3 3 3 3
VRATE KT-FT/1K..24 4 3 3 3 3 3 3 2 2 2 2
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...14 14 14 18 21 25 25 25 25 25 25 25
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........36 PERCENT.
DEWPOINT............50.
MAX APPARENT TEMP...78.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......6200 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 6 MPH SHIFTING TO THE SOUTHEAST 5
TO 6 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (29800 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................9 INCREASING TO 29 IN THE LATE MORNING AND
EARLY AFTERNOON, THEN INCREASING TO 39 EARLY IN
THE AFTERNOON DECREASING TO 35 LATE IN THE
AFTERNOON.
CEILING (KFT).......25 DECREASING TO 6.5.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........37 26 33 32 28 12 9 23 30 41 45 49
WEATHER COV.....
WEATHER TYPE....
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............50 51 55 61 68 72 75 76 77 78 77 76
DEWPOINT........48 48 51 52 52 51 50 50 49 49 49 49
RH..............93 89 86 72 57 48 41 40 37 36 37 39
APARNT TMP (F)..50 51 55 61 68 72 75 76 77 78 77 76
20 FT WIND DIR..NW NW NW N NE E E E E E E E
20 FT WIND SPD..2 1 1 1 1 1 1 1 1 1 1 1
20 FT WIND GUST.5 2 2 2 2 2 2 2 2 2 2 2
MIX HGT (KFT)...0.4 0.4 0.7 1.6 3.3 4.7 5.4 5.9 6.2 6.0 5.6 5.1
TRANSP WIND DIR.N N N N N NE NE NE E SE SE E
TRANSP WIND SPD.6 6 6 6 6 5 5 5 5 6 5 6
LVORI...........6 6 5 3 2 2 1 1 1 1 1 1
ADI.............6 6 6 12 24 27 31 33 35 42 32 37
VRATE KT-FT/1K..2 2 3 8 17 19 22 24 25 30 23 26
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...25 25 25 25 25 25 19 13 6.5 6.8 7.1 7.4
FORECASTER...COMBS
REQUESTED BY...TRAVIS AHO
TYPE OF REQUEST...WILDFIRE
.TAG 2620102.0/GYX
.DELDT 08/20/26
.FORMATTERVERSION 2.0.0
.EMAIL MICHAEL.BENSON@USDA.GOV,TRAVIS.AHO@USDA.GOV
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