Suppression Forecast
Issued by NWS Charleston, WV

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8
000
FNUS71 KRLX 281203
FWSRLX

Spot Forecast for Backus RX...NPS
National Weather Service Charleston WV
803 AM EDT Fri Apr 28 2017

Forecast is based on ignition time of 0900 EDT on April 28.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Brief high pressure is expected early, before a dry warm front lifts
through later today into tonight.

The weekend will be warm with most of the unsettled weather staying
northwest of the area. A strong cold front will bring widespread
showers and storms for Monday followed by much cooler air.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Max temperature.....Around 77.
Min humidity........40 percent.
Wind (20 ft)........Light winds, becoming south 5 to 7 mph late in
                    the morning.
Mixing height.......1400-2900 ft AGL, increasing to 3400-4100 ft
                    AGL late.
Transport winds.....South 2 to 9 mph, increasing to around 12 mph
                    late.
Haines Index........3 to 5 or very low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (EDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........22  22  21  21  20  20  21  23  24
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1
Temp............59  62  65  69  72  73  74  75  77
RH..............78  72  65  59  51  49  46  46  40
20 FT wind dir..S   S   S   S   S   S   S   S   S
20 FT wind spd..2   3   5   5   6   6   7   7   7
20 FT wind gust.5   10  10  10  15  15  15  15  15
Mix hgt (kft)...1.4 1.5 1.7 2.5 3.0 3.2 3.7 4.1 4.3
Transp wind dir.SW  S   S   S   S   S   S   S   S
Transp wind spd.2   5   6   6   7   7   8   9   12
Haines index....4   5   5   5   4   3   3   3   3

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
CWR.................10 percent.
Chance of pcpn......10 percent.
LAL.................No Tstms.
Min temperature.....Around 60.
Max humidity........87 percent.
Wind (20 ft)........South winds 5 to 8 mph.
Mixing height.......3400-4500 ft AGL, decreasing to 300-2200 ft AGL
                    in the late evening and overnight.
Transport winds.....South 13 to 20 mph, decreasing to 6 to 9 mph
                    late in the evening.
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 (%).........26  27  29  28  28  28  28  27  27  27  25  24
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   10  10  10  10  10  10  10  10  10
Chc of pcpn (%).0   0   0   10  10  10  10  10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............75  74  71  69  67  65  64  63  62  62  62  63
RH..............46  50  57  61  68  75  81  84  87  87  87  81
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..7   8   8   7   7   7   7   7   6   5   5   5
20 FT wind gust.15  15  15  15  15  15  15  15  15  10  10  10
Mix hgt (kft)...4.4 4.5 4.3 3.4 2.2 1.2 0.8 0.7 0.7 0.5 0.4 0.3
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.15  18  20  17  13  9   8   7   7   7   6   6
Haines index....3   3   3   4   4   5   5   6   6   6   5   5

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent). A slight chance
                    of showers and thunderstorms late.
CWR.................10 percent, increasing to 20 percent.
Chance of pcpn......20 percent.
LAL.................No Tstms.
Max temperature.....Around 83.
Min humidity........37 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph. Gusty and erratic
                    winds expected near thunderstorms late.
Mixing height.......300-1700 ft AGL, increasing to 4300-5100 ft
                    AGL.
Transport winds.....Southwest 6 to 15 mph.
Haines Index........4 to 5 or low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........22  20  38  34  27  23  25  28  30  29  26  25
Weather cov.....                                        SCH SCH
Weather type....                                        RW  RW
Tstm cov........                                        SCH SCH
CWR.............10  10  10  10  0   0   10  10  10  10  20  20
Chc of pcpn (%).10  10  10  10  0   0   10  10  10  10  20  20
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............63  63  62  65  70  74  78  80  82  83  83  82
RH..............84  84  87  81  71  62  52  47  41  38  37  38
20 FT wind dir..S   SW  S   SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..5   5   5   6   7   7   7   7   7   7   7   7
20 FT wind gust.10  10          10  10  10  10  10  10  10  10
Mix hgt (kft)...0.3 0.4 0.7 1.1 1.7 2.3 2.7 3.1 3.5 4.3 4.9 5.1
Transp wind dir.S   S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.6   6   6   7   7   8   8   8   9   12  14  15
Haines index....5   4   4   4   4   4   4   4   4   4   5   5

$$
Forecaster...RPY
Requested by...John Fry
Type of request...PRESCRIBED
.TAG 1707931.0/RLX


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.