Suppression Forecast
Issued by NWS Portland, ME

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000
FNUS71 KGYX 241935
FWSGYX

Spot Forecast for Spring Brook RX...USFS
National Weather Service Gray ME
335 PM EDT Tue Apr 24 2018

Forecast is based on ignition time of 1600 EDT on April 24.
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...High pressure drifting east the rest of the
afternoon allowing a return south to southwest flow to develop.
Dewpoints will remain low so RH will remain in the range of 15-25
percent until this evening. Due to strong surface heating and
mixing some brief gusts up to 20 mph may occur.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
LAL.................No Tstms.
Max temperature.....Around 65.
Min humidity........23 percent.
Dewpoint............24.
Max apparent temp...66.
Wind (20 ft)........Southwest winds around 6 mph.
Mixing height.......6100 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....Excellent (79200 knot-ft).
LVORI...............1.
ADI.................60.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
CEILING (KFT).......25.

TIME (EDT)      4PM 5PM
Sky (%).........17  11
Weather cov.....
Weather type....
Tstm cov........NO  NO
CWR.............0   0
LAL.............1   1
Temp............66  63
Dewpoint........24  25
RH..............20  24
Aparnt tmp (F)..66  63
20 FT wind dir..SW  SW
20 FT wind spd..6   6
20 FT wind gust.10  11
Mix hgt (kft)...6.1 6.1
Transp wind dir.SW  SW
Transp wind spd.15  15
LVORI...........1   1
ADI.............57  62
Haines index....4   4
VRate kt-ft/100079  80
Ceiling (kft)...25  25

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent), then becoming
                    mostly cloudy (65-75 percent). A slight chance
                    of rain late. A chance of rain late.
CWR.................8 percent.
LAL.................No Tstms.
Min temperature.....Around 39.
Max humidity........86 percent.
Dewpoint............27, increasing to 31 early in the evening.
Min apparent temp...34.
Wind (20 ft)........Southwest winds 5 to 6 mph until early morning,
                    becoming light and variable.
Mixing height.......3800-5300 ft AGL, decreasing to 600-1000 ft
                    AGL.
Transport winds.....Southwest 7 to 15 mph.
Smoke dispersal.....Fair to excellent (25000-70300 knot-ft),
                    decreasing to poor to fair (4200-14400 knot-ft)
                    late in the evening.
LVORI...............2.
ADI.................63, decreasing to 7 early in the evening.
Haines Index........4 to 5 OR or low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.
CEILING (KFT).......25, decreasing to 20 after midnight, then
                    decreasing to 17 after midnight, decreasing to
                    0.9 late, increasing to 3.0, decreasing to 1.8
                    late.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........16  21  25  32  38  44  50  57  63  69  75  81
Weather cov.....                                    SCH CHC CHC
Weather type....                                    RN  RN  RN
Tstm cov........NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO
CWR.............0   0   10  10  10  10  10  10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............60  57  54  52  50  48  47  46  44  43  42  40
Dewpoint........27  28  32  32  32  31  31  31  31  31  31  32
RH..............28  33  43  46  50  51  53  55  60  62  65  73
Aparnt tmp (F)..60  56  53  47  41  36  35  36  35  34  34  34
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
20 FT wind spd..6   6   6   5   5   5   5   5   5   4   4   4
20 FT wind gust.11  10  10  10  8   8   8   8   7   7   7   6
Mix hgt (kft)...5.3 4.6 3.8 3.0 2.2 1.4 1.2 1.0 0.7 0.7 0.6 0.6
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.15  15  15  14  13  12  9   8   7   7   8   8
LVORI...........1   1   2   2   2   2   2   3   3   3   3   3
ADI.............63  62  8   7   7   8   8   7   6   6   5   5
Haines index....4   4   4   4   5   5   5   5   5   5   4   4
VRate kt-ft/100070  60  49  37  25  14  10  7   4   4   4   4
Ceiling (kft)...25  25  25  25  25  25  25  20  17  0.9 3.0 1.8

.WEDNESDAY...

Sky/weather.........Cloudy (90-100 percent). Rain. Patchy fog late
                    in the morning.
CWR.................8 percent, increasing to 100 percent in the
                    morning.
LAL.................No Tstms.
Max temperature.....Around 49.
Min humidity........65 percent.
Dewpoint............34, increasing to 43.
Min apparent temp...34.
Wind (20 ft)........Light and variable winds, becoming southeast 5
                    to 6 mph late in the morning.
Mixing height.......300-800 ft AGL.
Transport winds.....West around 7 mph, becoming southeast 6 to 15
                    mph.
Smoke dispersal.....Poor (1400 knot-ft).
LVORI...............5 until late afternoon.
ADI.................7 until late afternoon.
Haines Index........2 to 3 OR or very low potential for large plume
                    dominated fire growth.
CEILING (KFT).......1.9, decreasing to 0.3 early in the morning,
                    then increasing to 0.9 early in the morning,
                    increasing to 1.9 late in the morning,
                    decreasing to 0.4, increasing to 0.5 late in
                    the morning, decreasing to 0.4, decreasing to
                    0.3 early in the afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........88  94  100 100 100 100 100 100 100 99  99  98
Weather cov.....LKY LKY DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Tstm cov........NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO  NO
CWR.............10  10  100 100 100 100 100 100 100 100 100 100
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............40  40  41  43  44  46  47  47  48  48  48  48
Dewpoint........33  34  36  39  41  43  44  44  43  43  44  44
RH..............76  79  82  86  89  89  89  89  83  83  86  86
Aparnt tmp (F)..34  37  39  39  41  42  41  42  43  43  43  41
20 FT wind dir..S   S   S   S   S   SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..4   4   4   4   4   5   5   6   6   6   6   6
20 FT wind gust.6   6   6   6   7   8   8   10  10  10  10  11
Mix hgt (kft)...0.5 0.4 0.3 0.4 0.5 0.5 0.5 0.4 0.4 0.5 0.6 0.8
Transp wind dir.W   N   NE  NE  E   SE  SE  SE  SE  SE  SE  SE
Transp wind spd.7   6   6   7   9   12  13  14  15  15  15  14
LVORI...........4   4   5   5   6   5   5   5   M   M   M   M
ADI.............4   5   4   5   6   9   10  10  M   M   M   M
Haines index....3   3   2   2   2   2   2   2   2   2   2   2
VRate kt-ft/10003   2   1   2   4   5   6   6   5   7   8   9
Ceiling (kft)...1.9 0.3 0.9 1.9 0.4 0.5 0.4 0.3

$$
Forecaster...MARINE
Requested by...Donald Tucker
Type of request...PRESCRIBED
.TAG 1807674.0/GYX
.DELDT 04/24/18



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