Text Products for FWS Issued by RNK

Spot Forecast
Issued by NWS Blacksburg, VA
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FNUS71 KRNK 220621
FWSRNK

Spot Forecast for AMJV Rx Burn...Department of Wildlife Resources
National Weather Service Blacksburg VA
221 AM EDT Mon Apr 22 2024

Forecast is based on ignition time of 0800 EDT on April 22.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Dry today with plenty of sunshine and good mixing. Mixing
winds will be light from the northwest so smoke dispersion
will be good by late morning through the afternoon. 20 foot
winds will be northwest and upslope/terrain driven. RH
bottoms out this afternoon in the 20-25 percent range.

Tuesday will also be dry with mostly sunny skies. Light
northwest winds turn southwest by afternoon. RH still running
24 to 28 percent in the afternoon.

.TODAY...

Sky/weather.........Sunny (0-20 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 63.
Min humidity........22 percent.
Wind (20 ft)........North to Northwest winds 5 to 6 mph.
Mixing height.......6900 ft AGL.
Mixing winds........North 5 to 10 mph shifting to the west around 7
                    mph late in the afternoon.
Smoke dispersal.....Poor (5500 knot-ft) early in the morning
                    increasing to good (49500 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................8 early in the morning increasing to 65 in the
                    afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0   1   1   1   5   8   11  14  17  19
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Temp............37  41  47  52  56  58  59  61  62  61
RH..............62  52  42  35  31  24  23  22  22  22
20 FT wind dir..N   N   N   N   N   N   N   NW  NW  NW
20 FT wind spd..5   5   6   6   6   5   5   5   5   5
20 FT wind gust.7   8   8   8   7   7   7   8   8   8
Mix hgt (kft)...1.1 2.2 3.2 4.3 5.3 5.8 6.4 6.9 6.7 6.5
Mixng wind dir..N   N   N   N  N   N   NW  NW  NW  W
Mixng wind spd..6   8   9   10  9   7   5   5   6   7
LVORI...........3   1   1   1   1   1   1   1   1   1
ADI.............8   32  51  65  59  53  40  46  58  63
Haines index....5   5   5   5   5   5   5   5   5   5
VRate mph-ft/1K.6   25  43  57  53  44  34  39  49  54

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR (0.01 in).......0 percent.
Min temperature.....Around 36.
Max humidity........71 percent.
Wind (20 ft)........Northwest winds around 5 mph early in the
                    evening becoming light.
Mixing height.......400 ft AGL.
Mixing winds........West 3 to 6 mph shifting to the southwest 1 to
                    2 mph early in the evening, then shifting to
                    the west late in the evening shifting to the
                    northwest around 2 mph overnight.
Smoke dispersal.....Good (33500 knot-ft) early in the evening
                    decreasing to poor (600 knot-ft) late in the
                    night.
LVORI...............2.
ADI.................46 early in the evening decreasing to 1 late in
                    the night.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........17     12     6      3      4      11
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............60     52     47     43     40     38
RH..............28     39     46     52     57     59
20 ft wind......NW 5   NW 5   NW 4   NW 4   NW 3   W 3
20 ft wind gust.8      7      6      6      5      4
Mix hgt (ft)....6200   2400   700    600    400    400
Mixing wind......W 6    S 2    SW 1   W 1    NW 2   NW 2
LVORI...........1      2      2      2      3      3
ADI.............46     1      1      1      1      1
Haines index....5      5      5      5      4      4
VRate mph-ft/1K.39     2      1      1      1      1

.TUESDAY...

Sky/weather.........Sunny (20-30 percent) then becoming mostly
                    sunny (35-45 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 70.
Min humidity........25 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 9 mph with
                    gusts to around 17 mph in the late morning and
                    afternoon.
Mixing height.......5500 ft AGL.
Mixing winds........Northwest around 1 mph shifting to the north
                    around 0 mph early in the morning, then
                    shifting to the west 1 to 9 mph early in the
                    morning increasing to southwest 14 to 17 mph
                    late in the morning.
Smoke dispersal.....Poor (200 knot-ft) early in the morning
                    increasing to excellent (94000 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................0 early in the morning increasing to 110 in the
                    afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........19     30     34     48     24     15
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............37     43     53     61     66     69
RH..............66     62     45     34     27     25
20 ft wind......W 2    W 2    SW 5   SW 6   SW 7   SW 9
20 ft wind gust.       4      8      12     14     17
Mix hgt (ft)....400    400    1900   3500   4700   5500
Mixing wind......NW 1   W 1    W 9    SW 15  SW 16  SW 17
LVORI...........4      3      1      1      1      1
ADI.............1      1      32     76     99     79
Haines index....4      4      4      4      5      5
VRate mph-ft/1K.0      0      24     64     86     106

$$
Forecaster...Perry
Requested by...Tyler Urgo
Type of request...PRESCRIBED
.TAG 2411566.1/RNK
.DELDT 04/22/24
.FormatterVersion 2.0.0
.EMAIL Tyler.urgo@dcr.virginia.gov
National Weather Service Weather Forecast Office
