295
FNUS71 KRNK 302023
FWSRNK

Spot Forecast for Huckleberry Knob...USFS
National Weather Service Blacksburg VA
423 PM EDT Tue Apr 30 2024

Forecast is based on forecast start time of 1700 EDT on April 30.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

At the spot location, some shower and possible thunderstorm activity
ahead and along a cold front has a greater chance of development
now until about 8 PM EDT. Total rainfall amounts this evening could
be a quarter to two thirds of an inch. Winds this evening look to be
SW to west near 10 mph with possibly higher and gusty near any
thunderstorms. Winds overnight should shift more NW near 10 mph.
Expect mostly cloudy skies persisting into the overnight before
scattering out near sunrise Wednesday. Dry high pressure and mostly
clear skies follows for Wednesday and afternoon relative humidity
looks to get down to the low 30s. Morning winds look to be NW near
8 mph then decrease slightly for the afternoon.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (80-90 percent). Showers and
                    thunderstorms likely.
CWR (0.01 in).......60 percent.
Max temperature.....Around 73.
Min humidity........49 percent.
Wind (20 ft)........Southwest winds around 9 mph. Gusty and erratic
                    winds expected near thunderstorms.
Mixing height.......2300 ft AGL.
Mixing winds........Southwest around 9 mph.
Smoke dispersal.....Fair (18100 knot-ft).
LVORI...............2.
ADI.................19.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (EDT)      5PM
Sky (%).........87
Weather cov.....LKY
Weather type....RW
Tstm cov........LKY
CWR.............60
Temp............68
RH..............64
20 FT wind dir..SW
20 FT wind spd..9
20 FT wind gust.12
Mix hgt (kft)...2.3
Mixng wind dir..SW
Mixng wind spd..9
LVORI...........2
ADI.............19
Haines index....4
VRate mph-ft/1K.21

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of
                    showers and thunderstorms early in the evening,
                    then slight chance of showers and thunderstorms
                    late in the evening.
CWR (0.01 in).......60 percent decreasing to 10 percent.
Min temperature.....Around 54.
Max humidity........94 percent.
Wind (20 ft)........Northwest winds 8 to 9 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    evening.
Mixing height.......400 ft AGL.
Mixing winds........West 8 to 15 mph shifting to the northwest 16
                    to 20 mph overnight.
Smoke dispersal.....Fair (16900 knot-ft) early in the evening
                    decreasing to poor (4700 knot-ft) late in the
                    night.
LVORI...............4.
ADI.................7 to 18.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........89     89     71     87     59     52
Weather cov.....CHANCE CHANCE
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........CHANCE CHANCE
CWR.............60     30     10     10     0      0
Temp............65     60     59     57     55     55
RH..............72     85     87     91     93     94
20 ft wind......W 9    NW 9   NW 8   NW 9   NW 8   NW 8
20 ft wind gust.13     11     11     11     10     10
Mix hgt (ft)....2300   700    500    500    600    500
Mixing wind......W 8    W 8    W 13   NW 16  NW 18  NW 20
LVORI...........3      4      5      5      5      5
ADI.............18     7      11     15     16     17
Haines index....4      4      3      3      3      4
VRate mph-ft/1K.19     6      6      9      10     9

.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 74.
Min humidity........32 percent.
Wind (20 ft)........Northwest winds 6 to 8 mph.
Mixing height.......6000 ft AGL.
Mixing winds........Northwest 7 to 16 mph decreasing to around 6
                    mph late in the afternoon.
Smoke dispersal.....Poor (5600 knot-ft) early in the morning
                    increasing to good (45800 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................12 early in the morning increasing to 63 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 (%).........41     27     11     2      2      3
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............55     55     61     67     72     74
RH..............91     89     68     49     36     32
20 ft wind......NW 8   NW 8   NW 6   NW 6   NW 6   NW 6
20 ft wind gust.10     10     10     10     10     10
Mix hgt (ft)....500    900    2500   4000   5500   6000
Mixing wind......NW 16  NW 10  N 14   N 14   N 8    NW 7
LVORI...........5      5      1      1      1      1
ADI.............14     12     42     63     50     43
Haines index....4      4      4      4      4      5
VRate mph-ft/1K.7      9      34     53     44     39

$$
Forecaster...Baker
Requested by...Alex Orange
Type of request...WILDFIRE
.TAG 2412315.6/RNK
.DELDT 04/30/24
.FormatterVersion 2.0.0
.EMAIL vavic@firenet.gov