907
FNUS71 KRNK 021117
FWSRNK

Spot Forecast for Huckleberry Knob...USFS
National Weather Service Blacksburg VA
717 AM EDT Thu May 2 2024

Forecast is based on forecast start time of 1300 EDT on May 02.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Today and tonight high pressure will result in dry weather and
above normal temperatures. Minimum RH will be near 27 percent.
Winds will be upslope once the shallow inversion breaks around
10AM.

There is a chance of showers and thunderstorms on Friday
afternoon and evening.

A low pressure system brings wet weather to the region this
weekend along with cooler temperatures. Rainfall amount
expected Saturday is 0.10 to 0.25 of an inch.


.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 83.
Min humidity........27 percent.
Wind (20 ft)........Light winds.
Mixing height.......7900 ft AGL.
Mixing winds........Southwest 2 to 3 mph.
Smoke dispersal.....Poor (12200 knot-ft) early in the morning
                    increasing to fair (23700 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................17 to 32.
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

TIME (EDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........5   8   11  11  7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0
Temp............79  80  81  81  81
RH..............31  30  27  27  27
20 FT wind dir..S   S   S   S   S
20 FT wind spd..3   4   4   4   4
20 FT wind gust.6   6   6   7   7
Mix hgt (kft)...6.4 7.1 7.5 7.9 7.9
Mixng wind dir..W   SW  SW  SW  SW
Mixng wind spd..2   2   2   3   3
LVORI...........2   2   2   2   1
ADI.............17  20  24  29  32
Haines index....5   6   6   6   6
VRate mph-ft/1K.14  16  20  24  27

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR (0.01 in).......0 percent.
Min temperature.....Around 58.
Max humidity........72 percent.
Wind (20 ft)........South winds 5 to 6 mph shifting to the
                    southwest overnight, then becoming light early
                    in the morning.
Mixing height.......400 ft AGL.
Mixing winds........Southwest 2 to 3 mph.
Smoke dispersal.....Fair (23200 knot-ft) early in the evening
                    decreasing to poor (900 knot-ft) late in the
                    night.
LVORI...............2.
ADI.................1 to 32.
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........8      13     15     24     9      11
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............79     73     68     65     62     60
RH..............36     44     50     55     59     64
20 ft wind......S 5    S 6    S 5    SW 5   SW 6   SW 5
20 ft wind gust.7      8      7      7      8      7
Mix hgt (ft)....7400   600    500    400    400    400
Mixing wind.....S 3    S 3    S 2    S 2    SW 3   W 3
LVORI...........1      2      2      3      3      3
ADI.............32     2      1      1      2      2
Haines index....6      5      5      5      5      5
VRate mph-ft/1K.27     2      1      1      1      1

.FRIDAY...

Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
                    showers late in the afternoon.
CWR (0.01 in).......10 percent increasing to 20 percent late in the
                    afternoon.
Max temperature.....Around 77.
Min humidity........42 percent.
Wind (20 ft)........Light winds becoming south 5 to 8 mph in the
                    late morning and afternoon.
Mixing height.......6500 ft AGL.
Mixing winds........Southwest 3 to 5 mph shifting to the south 6 to
                    12 mph late in the morning.
Smoke dispersal.....Poor (1000 knot-ft) early in the morning
                    increasing to good (50600 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................1 early in the morning increasing to 48 in the
                    afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........15     31     50     54     55     64
Weather cov.....                                   S CHC
Weather type....NONE   NONE   NONE   NONE   NONE   RNSHWR
Tstm cov........
CWR.............0      0      0      0      0      20
Temp............62     64     70     75     76     76
RH..............69     72     56     47     43     43
20 ft wind......SW 4   SW 3   S 5    S 6    S 7    S 8
20 ft wind gust.6      6      6      10     12     13
Mix hgt (ft)....400    300    3100   6500   6200   5400
Mixing wind.....W 3    W 3    S 5    S 7    S 9    S 10
LVORI...........3      3      2      1      1      1
ADI.............1      3      19     32     42     46
Haines index....5      5      5      5      5      5
VRate mph-ft/1K.1      1      15     45     57     58

$$
Forecaster...Silverman
Requested by...Alex Orange
Type of request...WILDFIRE
.TAG 2412315.8/RNK
.DELDT 05/02/24
.FormatterVersion 2.0.0
.EMAIL vavic@firenet.gov