Spot Forecast
Issued by NWS Blacksburg, VA

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FNUS71 KRNK 282222
FWSRNK

Spot Forecast for Brush Mountain Fire...USFS
National Weather Service Blacksburg VA
622 PM EDT Fri Mar 28 2025

Forecast is based on forecast start time of 0700 EDT on March 29.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Dry and warm again on Saturday. Southerly flow will continue
to gradually increase moisture as noted by increasing dew
points through Sunday. Min RH values will be in the 30
percent range, along with south winds gusting to 15 mph
at times.

Next chance of rainfall comes on Sunday afternoon and
evening, but rain amounts appear to be lights, totaling
to 0.25" or less.


.SATURDAY...

Sky/weather.........Mostly cloudy (70-80 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 76.
Min humidity........35 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph.
Mixing height.......6900 ft AGL.
Mixing winds........Southwest 6 to 14 mph increasing to 15 to 17
                    mph late in the morning.
Smoke dispersal.....Poor (2200 knot-ft) early in the morning
                    increasing to excellent (94800 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................5 early in the morning increasing to 78 in the
                    afternoon.

TIME (EDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........77  83  80  78  76  73  71  69  67  65  63
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
Temp............55  53  57  61  65  67  69  71  72  74  75
RH..............64  68  62  57  53  49  45  41  39  37  35
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..5   5   6   6   6   7   7   7   7   7   7
20 FT wind gust.6   7   8   10  11  11  12  12  12  12  11
Mix hgt (kft)...0.4 0.4 0.5 1.3 1.7 3.1 4.9 6.4 6.9 6.4 5.6
Mixng wind dir..SW  SW  SW  W   W   SW  SW  SW  SW  SW  SW
Mixng wind spd..6   7   10  14  17  17  16  15  16  17  17
LVORI...........3   3   3   2   1   1   1   1   1   1   1
ADI.............5   5   8   23  38  56  66  69  75  78  75
VRate mph-ft/1K.3   3   5   18  30  54  79  96  109 109 97

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
                    rain showers after 3 am.
CWR (0.01 in).......10 percent increasing to 20 percent after 3 am.
Min temperature.....Around 56.
Max humidity........81 percent.
Wind (20 ft)........Southwest winds 5 to 6 mph in the evening
                    becoming light.
Mixing height.......500 ft AGL.
Mixing winds........Southwest 8 to 15 mph.
Smoke dispersal.....Good (53000 knot-ft) early in the evening
                    decreasing to poor (3900 knot-ft) late in the
                    night.
LVORI...............2.
ADI.................57 early in the evening decreasing to 5 late in
                    the night.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........62  60  62  63  65  67  69  70  72  76  79  82
Weather cov.....                                        SCH SCH
Weather type....                                        RW  RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   10  10  20  20
Temp............73  71  66  64  62  61  59  59  58  58  58  57
RH..............37  40  49  55  60  64  67  69  70  71  72  74
20 FT wind dir..SW  S   S   SW  SW  S   S   S   S   S   S   S
20 FT wind spd..6   6   6   5   5   4   4   4   4   4   4   4
20 FT wind gust.10  10  8   14  13  13  12  12  13  13  13  13
Mix hgt (kft)...4.0 1.3 0.8 0.5 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.8
Mixng wind dir..SW  S   S   S   S   S   SW  SW  SW  SW  SW  SW
Mixng wind spd..15  13  10  9   8   8   9   10  12  13  14  15
LVORI...........1   2   2   3   3   3   3   3   3   3   3   3
ADI.............57  14  7   6   5   5   6   7   8   9   10  10
VRate mph-ft/1K.61  17  8   5   4   5   5   7   8   10  11  11

.SUNDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Chance of rain
                    showers in the morning and early afternoon,
                    then rain showers likely late in the afternoon.
CWR (0.01 in).......30 percent increasing to 60 percent.
Max temperature.....Around 69.
Min humidity........61 percent.
Wind (20 ft)........Light winds becoming south 5 to 7 mph with
                    gusts to around 18 mph in the late morning and
                    afternoon.
Mixing height.......2900 ft AGL.
Mixing winds........Southwest 14 to 22 mph.
Smoke dispersal.....Poor (9900 knot-ft) early in the morning
                    increasing to good (55400 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................7 early in the morning increasing to 52 in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........81  80  78  74  71  69  68  68  69  69  69  69
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............30  30  40  40  40  40  40  40  60  60  60  60
Temp............57  56  56  58  60  62  63  64  65  66  67  67
RH..............77  80  81  78  75  72  69  66  64  63  62  63
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..3   3   4   4   5   6   6   6   7   7   7   7
20 FT wind gust.13  13  13  14  16  17  18  18  18  18  18  18
Mix hgt (kft)...0.8 0.8 0.8 1.2 1.6 2.0 2.3 2.6 2.9 2.8 2.7 2.5
Mixng wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Mixng wind spd..15  14  14  15  16  18  21  22  22  21  18  16
LVORI...........4   4   4   3   3   3   1   1   1   1   1   1
ADI.............7   11  16  22  28  35  42  48  52  47  41  35
VRate mph-ft/1K.12  11  12  18  26  36  46  56  64  57  48  41

$$
Forecaster...Gruver
Requested by...Daniel Scott
Type of request...WILDFIRE
.TAG 2508363.0/RNK
.DELDT 03/29/25
.FormatterVersion 2.0.0
.EMAIL robert.claytor@usda.gov,daniel.scott3@usda.gov,vavic@firenet.gov,William.brimm@usda.gov,brian.theiler@usda.gov