Suppression Forecast
Issued by NWS Blacksburg, VA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2
521
FNUS71 KRNK 011003
FWSRNK

Spot Forecast for Horse Heaven...USFS
National Weather Service Blacksburg VA
603 AM EDT Thu May 1 2025

Forecast is based on ignition time of 0700 EDT on May 01.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Increasing moisture will keep RH values elevated. Daily
chances of rain and thunderstorms will be possible.
Best wetting rain chances will be in the mountains today
and Friday and a more areawide chance on Saturday as a
cold front moves across the region.

Daily rain chances increasing into early next week
as well.


.REST OF TODAY...

Sky/weather.........Partly sunny (55-65 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon. Chance of showers and thunderstorms
                    late in the afternoon.
CWR (0.01 in).......10 percent increasing to 40 percent.
Max temperature.....Around 73.
Min humidity........46 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 10 mph with
                    gusts to around 17 mph early in the morning.
                    Gusty and erratic winds expected near
                    thunderstorms late in the afternoon.
Mixing height.......6400 ft AGL.
Mixing winds........Southwest 6 to 15 mph increasing to 10 to 16
                    mph in the afternoon.
Smoke dispersal.....Poor (1200 knot-ft) early in the morning
                    increasing to excellent (88900 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................5 early in the morning increasing to 110 in the
                    afternoon.

TIME (EDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........67  69  63  63  49  44  42  37  43  51  81
Weather cov.....                                SCH CHC CHC
Weather type....                                RW  RW  RW
Tstm cov........                                SCH CHC CHC
CWR.............10  10  10  10  10  10  10  10  20  40  40
Temp............59  62  65  67  69  70  71  71  72  72  69
RH..............87  82  74  68  59  53  49  47  46  47  55
20 FT wind dir..SW  SW  SW  SW  SW  SW  S   S   S   SW  SW
20 FT wind spd..4   5   5   6   7   8   8   10  10  10  10
20 FT wind gust.6   6   7   10  11  13  14  17  17  17  16
Mix hgt (kft)...0.2 0.3 1.0 2.3 3.9 5.3 5.9 6.4 6.2 5.0 3.1
Mixng wind dir..S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW
Mixng wind spd..6   7   9   13  15  16  16  16  15  13  10
LVORI...........5   4   3   3   1   1   1   1   1   1   2
ADI.............5   5   11  34  71  99  110 74  67  39  25
VRate mph-ft/1K.1   2   9   29  59  86  98  102 91  64  32

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    partly cloudy (45-55 percent) then becoming
                    mostly cloudy (55-65 percent) then becoming
                    partly cloudy (35-45 percent) then becoming
                    mostly cloudy (50-60 percent). Chance of
                    showers and thunderstorms in the evening, then
                    slight chance of showers late in the evening.
CWR (0.01 in).......40 percent decreasing to 20 percent.
Min temperature.....Around 58.
Max humidity........80 percent.
Wind (20 ft)........Southwest winds 8 to 10 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    evening.
Mixing height.......300 ft AGL.
Mixing winds........South 3 to 8 mph.
Smoke dispersal.....Poor (1100 knot-ft).
LVORI...............3.
ADI.................3 to 12.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........72  69  59  63  50  54  61  67  64  34  47  56
Weather cov.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC
CWR.............40  30  30  30  30  20  20  20  20  20  20  20
Temp............67  67  65  65  64  63  62  62  61  61  60  60
RH..............60  62  65  67  68  71  73  72  72  73  79  77
20 FT wind dir..SW  SW  SW  SW  S   SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..10  10  9   9   9   9   9   9   8   8   8   8
20 FT wind gust.14  13  12  11  12  12  11  11  10  10  10  10
Mix hgt (kft)...1.4 0.7 0.5 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3
Mixng wind dir..S   S   S   S   S   S   S   S   SW  SW  SW  W
Mixng wind spd..8   5   3   3   5   6   6   5   5   5   6   6
LVORI...........2   3   3   3   3   3   3   3   3   3   4   4
ADI.............12  5   3   3   4   5   5   4   4   3   5   5
VRate mph-ft/1K.11  4   2   1   2   2   2   1   1   1   2   2

.FRIDAY...

Sky/weather.........Partly sunny (50-60 percent). Chance of rain
                    showers through the day. Chance of
                    thunderstorms in the afternoon.
CWR (0.01 in).......20 percent increasing to 30 percent late in the
                    morning, then increasing to 40 percent early in
                    the afternoon increasing to 50 percent early in
                    the afternoon decreasing to 40 percent.
Max temperature.....Around 72.
Min humidity........49 percent.
Wind (20 ft)........Southwest winds 6 to 8 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......4400 ft AGL.
Mixing winds........West 6 to 14 mph shifting to the southwest 12
                    to 16 mph late in the morning.
Smoke dispersal.....Poor (1400 knot-ft) early in the morning
                    increasing to good (52000 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................5 early in the morning increasing to 72 in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55  44  62  60  68  64  63  61  56  52  50  50
Weather cov.....SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                        SCH SCH CHC CHC CHC CHC
CWR.............20  20  20  20  30  30  40  40  50  40  40  40
Temp............59  59  61  63  64  66  67  68  69  70  71  71
RH..............79  80  79  76  72  65  61  56  53  50  49  49
20 FT wind dir..SW  SW  W   W   W   W   W   SW  SW  SW  SW  SW
20 FT wind spd..8   8   7   7   8   8   7   8   8   7   7   6
20 FT wind gust.10  10  11  12  13  13  13  13  13  13  13  12
Mix hgt (kft)...0.3 0.3 0.7 1.6 2.5 3.6 3.5 3.9 4.4 4.2 4.1 4.0
Mixng wind dir..W   W   W   W   W   W   SW  SW  SW  SW  SW  SW
Mixng wind spd..6   6   7   10  14  16  15  13  12  13  14  15
LVORI...........4   4   4   3   3   1   1   1   1   1   1   1
ADI.............5   6   7   21  43  57  53  49  45  48  70  72
VRate mph-ft/1K.2   2   5   17  34  57  54  52  50  54  59  60

$$
Forecaster...Gruver
Requested by...Todd Caudill
Type of request...PRESCRIBED
.TAG 2512118.3/RNK
.DELDT 05/01/25
.FormatterVersion 2.0.0
.EMAIL todd.caudill@usda.gov