918
FNUS71 KRNK 111123
FWSRNK

Spot Forecast for Rifle Range Plot burn...US Army Corps of Engineers
National Weather Service Blacksburg VA
723 AM EDT Tue Mar 11 2025

Forecast is based on ignition time of 0800 EDT on March 13.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Winds look to remain light on Thursday, and while they
are expected to initially start out of the northwest in
the morning hours, a shift to out of the south is expected
by the afternoon hours. Mixing heights look to remain ideal
in the 5500-6000ft range. RH values are not expected to
bottom out much lower than the upper 30s during the afternoon
on Thursday, which is much more ideal for burning compared
to today and Wednesday. Overall, there are no fire weather
concerns on Thursday outside of the wind shift expected
throughout the day.

.THURSDAY...

Sky/weather.........Partly sunny (60-70 percent).
CWR (0.01 in).......10 percent.
Max temperature.....Around 73.
Min humidity........38 percent.
Wind (20 ft)........Light winds.
Mixing height.......5700 ft AGL.
Mixing winds........Northwest 1 to 3 mph shifting to the south 6 to
                    9 mph in the afternoon.
Smoke dispersal.....Poor (2300 knot-ft) early in the morning
                    increasing to good (40800 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................3 early in the morning increasing to 54 in the
                    afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........61  63  64  66  67  69  70  69  68  67
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   10  10  10  10
Temp............48  52  57  61  65  68  70  72  72  71
RH..............76  66  58  51  45  42  39  38  38  40
20 FT wind dir..W   W   SW  SW  S   S   SE  SE  SE  SE
20 FT wind spd..1   1   2   2   3   3   3   3   3   2
20 FT wind gust.    2           4   4   4   4   4
Mix hgt (kft)...0.8 1.5 2.3 3.1 3.9 4.8 5.7 5.3 4.9 4.5
Mixng wind dir..NW  NW  NW  NW  W   S   S   S   S   S
Mixng wind spd..3   2   1   1   3   6   8   9   9   9
LVORI...........4   3   3   2   2   1   1   1   1   1
ADI.............3   5   4   4   14  32  51  54  52  49
VRate mph-ft/1K.3   4   3   4   12  27  46  47  45  42

.THURSDAY NIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (25-35 percent).
CWR (0.01 in).......10 percent.
Min temperature.....Around 47.
Max humidity........88 percent.
Wind (20 ft)........Light winds.
Mixing height.......800 ft AGL early in the evening.
Mixing winds........South 9 to 10 mph early in the evening.
Smoke dispersal.....Fair (27300 knot-ft) early in the evening
                    decreasing to poor (7200 knot-ft) late in the
                    night early in the evening.
LVORI...............2 early in the evening.
ADI.................4 to 39 early in the evening.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........60     46     36     27     17     20
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............10     0      0      0      0      0
Temp............69     62     57     54     52     49
RH..............43     53     64     72     77     85
20 ft wind......SE 2   SE 1   SE 1   N 0    N 0    N 0
20 ft wind gust.
Mix hgt (ft)....3300   800    M      M      M      M
Mixing wind......S 9    S 10   M      M      M      M
LVORI...........1      2      M      M      M      M
ADI.............39     5      M      M      M      M
VRate mph-ft/1K.31     8      M      M      M      M

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR (0.01 in).......10 percent.
Max temperature.....Around 71.
Min humidity........44 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 6 mph late
                    in the afternoon.
Mixing height.......MISSING.
Mixing winds........
Smoke dispersal.....MISSING.
LVORI...............MISSING.
ADI.................MISSING.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........24     27     30     34     37     36
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      10     10
Temp............47     47     55     61     66     68
RH..............88     87     73     63     53     47
20 ft wind......N 0    NE 1   E 1    E 3    SE 5   SE 6
20 ft wind gust.1             5      7      10     12
Mix hgt (ft)....M      M      M      M      M      M
Mixing wind......M      M      M      M      M      M
LVORI...........M      M      M      M      M      M
ADI.............M      M      M      M      M      M
VRate mph-ft/1K.M      M      M      M      M      M

$$
Forecaster...Bunker
Requested by...Brandon Turner
Type of request...PRESCRIBED
.TAG 2505787.0/RNK
.DELDT 03/11/25
.FormatterVersion 2.0.0
.EMAIL brandon.m.turner@usace.army.mil