Suppression Forecast
Issued by NWS Charleston, WV

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FNUS71 KRLX 261630
FWSRLX

Spot Forecast for Backus Mountain...National Park Service
National Weather Service Charleston WV
1230 PM EDT Wed Apr 26 2017

Forecast is based on ignition time of 1300 EDT on April 26.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Weak high pressure remains to the east today and will keep the winds
fairly light out of the SSW.  Next chance for rain will come tomorrow
afternoon as a cold front passes the area.  This front will bring
scattered showers and storms, with likely some gusty winds in the
stronger thunderstorms.

The front will lift back north on Friday as a warm front and this will
increase humidity across the region.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Max temperature.....Around 76.
Min humidity........39 percent.
Wind (20 ft)........Light winds, becoming south 5 to 6 mph late.
Mixing height.......2500-2800 ft AGL.
Transport winds.....South 3 to 7 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (EDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........30  22  19  13  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0
LAL.............1   1   1   1   1
Temp............70  72  73  74  75
RH..............53  47  46  42  39
20 FT wind dir..W   SW  SW  S   S
20 FT wind spd..2   2   3   5   6
20 FT wind gust.5   5   5       10
Mix hgt (kft)...2.7 2.8 2.8 2.6 2.5
Transp wind dir.W   SW  SW  S   S
Transp wind spd.3   3   5   6   7
Haines index....3   3   3   3   3

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Min temperature.....Around 62.
Max humidity........68 percent.
Wind (20 ft)........South winds 7 to 12 mph. Gusts up to 25 mph in
                    the late evening and overnight.
Mixing height.......900-2800 ft AGL.
Transport winds.....South 8 to 15 mph.
Haines Index........3 to 6 or very low potential for large plume
                    dominated fire growth to or high potential for
                    large plume dominated fire growth.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........10  11  11  11  12  12  14  19  22  23  25  26
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   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   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............74  73  72  70  69  68  66  66  65  65  64  64
RH..............42  45  48  53  58  62  66  64  66  65  67  66
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..7   7   7   8   10  12  12  12  12  12  12  12
20 FT wind gust.10  10  15  15  20  25  25  25  25  25  25  25
Mix hgt (kft)...2.6 2.8 2.8 2.5 2.0 1.6 1.3 1.1 1.0 0.9 0.9 0.9
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.8   8   9   10  13  14  15  15  15  15  15  15
Haines index....3   3   3   3   4   5   5   5   6   6   6   6

.THURSDAY...

Sky/weather.........Mostly sunny (35-45 percent). A slight chance
                    of showers early in the afternoon. A chance of
                    showers and thunderstorms in the afternoon,
                    then showers and thunderstorms likely late.
CWR.................10 percent, increasing to 60 percent.
Chance of pcpn......60 percent.
LAL.................No Tstms until 1300, then 9-15 strikes until
                    1700, then 16-25 strikes.
Max temperature.....Around 76.
Min humidity........46 percent.
Wind (20 ft)........South winds 8 to 10 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......900-2200 ft AGL, increasing to 3000-3600 ft AGL
                    in the afternoon.
Transport winds.....South 10 to 14 mph.
Haines Index........3 to 6 or very low potential for large plume
                    dominated fire growth to or high potential for
                    large plume dominated fire growth.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........23  18  20  21  22  23  33  52  61  61  61  61
Weather cov.....                        SCH CHC CHC CHC CHC LKY
Weather type....                        RW  RW  RW  RW  RW  RW
Tstm cov........                            CHC CHC CHC CHC LKY
CWR.............0   0   0   0   10  10  20  30  40  40  50  60
Chc of pcpn (%).0   0   0   0   10  10  20  30  40  40  50  60
LAL.............1   1   1   1   1   1   1   3   3   3   3   4
Temp............63  63  64  67  69  70  71  73  74  75  75  75
RH..............68  68  64  61  60  56  52  48  46  47  48  49
20 FT wind dir..S   SE  SE  S   S   S   S   S   S   S   S   S
20 FT wind spd..10  9   9   9   10  10  10  9   9   9   8   8
20 FT wind gust.20  20  15  15  20  20  20  20  15  15  15  15
Mix hgt (kft)...0.9 0.9 0.9 1.0 1.1 1.4 2.2 3.0 3.6 3.5 3.3 3.2
Transp wind dir.S   SE  SE  S   S   S   S   S   S   S   S   S
Transp wind spd.14  13  12  12  13  13  13  13  13  12  10  10
Haines index....6   6   6   6   5   5   5   4   4   4   3   3

$$
Forecaster...MPK
Requested by...John Fry
Type of request...PRESCRIBED
.TAG 1707816.0/RLX



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