Spot Forecast Issued by NWS Blacksburg, VA
000
FNUS71 KRNK 162018
FWSRNK
Spot Forecast for Glade Mtn...USFS
National Weather Service Blacksburg VA
418 PM EDT Tue Apr 16 2024
Forecast is based on ignition time of 1700 EDT on April 16.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Scattered showers and thunderstorms are moving through the area,
and diminish by around 8 PM tonight as a cold front remains draped
across southwest Virginia. As the front lifts north on Wednesday,
winds will shift back to the southwest. Daily isolated showers
and thunderstorms are expected in the afternoons and evenings through
Friday.
Abundant cloud cover tonight will keep overnight temperatures
mild, in the mid 50s. Relative humidity will recover to around 70%
by Wednesday morning.
.REST OF TODAY...
Sky/weather.........Mostly cloudy (80-90 percent). Scattered
showers and thunderstorms.
CWR (0.01 in).......50 percent.
Max temperature.....Around 68.
Min humidity........56 percent.
Wind (20 ft)........South winds around 7 mph. Gusty and erratic
winds expected near thunderstorms.
Mixing height.......2000 ft AGL.
Mixing winds........South around 2 mph.
Smoke dispersal.....Poor (3900 knot-ft).
LVORI...............3.
ADI.................6.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (EDT) 5PM
Sky (%).........86
Weather cov.....SCT
Weather type....RW
Tstm cov........SCT
CWR.............50
Temp............68
RH..............56
20 FT wind dir..S
20 FT wind spd..7
20 FT wind gust.12
Mix hgt (kft)...2.0
Mixng wind dir..S
Mixng wind spd..2
LVORI...........3
ADI.............6
Haines index....5
VRate mph-ft/1K.4
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent) then becoming
partly cloudy (35-45 percent) then becoming
mostly cloudy (70-80 percent). Scattered
showers and thunderstorms early in the evening,
then isolated showers and thunderstorms early
in the evening.
CWR (0.01 in).......30 percent decreasing to 10 percent.
Min temperature.....Around 58.
Max humidity........71 percent.
Wind (20 ft)........South winds 7 to 9 mph. Gusts up to 20 mph
overnight. Gusty and erratic winds expected
near thunderstorms early in the evening.
Mixing height.......500 ft AGL.
Mixing winds........South 3 to 7 mph.
Smoke dispersal.....Poor (2000 knot-ft).
LVORI...............3.
ADI.................3 to 6.
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 (%).........58 32 38 50 64 87
Weather cov.....SCTTRD
Weather type....RNSHWR NONE NONE NONE NONE NONE
Tstm cov........SCTTRD
CWR.............30 10 10 10 10 10
Temp............67 65 63 62 61 60
RH..............58 62 68 71 71 67
20 ft wind......S 8 SE 8 S 8 S 9 S 9 S 8
20 ft wind gust.13 13 14 14 14 13
Mix hgt (ft)....1600 500 500 600 600 500
Mixing wind......S 3 S 7 S 7 S 6 S 6 S 5
LVORI...........3 3 3 3 3 3
ADI.............6 5 4 5 5 4
Haines index....5 5 5 5 6 6
VRate mph-ft/1K.5 3 3 4 4 3
.WEDNESDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Isolated rain
showers in the late morning and afternoon.
Isolated thunderstorms in the afternoon.
CWR (0.01 in).......10 percent increasing to 20 percent in the late
morning and afternoon.
Max temperature.....Around 70.
Min humidity........42 percent.
Wind (20 ft)........Southwest winds 6 to 14 mph with gusts to
around 22 mph increasing to 16 to 17 mph with
gusts to around 26 mph late in the afternoon.
Gusty and erratic winds expected near
thunderstorms in the afternoon.
Mixing height.......5800 ft AGL.
Mixing winds........Southwest 5 to 14 mph increasing to 17 to 22
mph late in the afternoon.
Smoke dispersal.....Poor (1700 knot-ft) early in the morning
increasing to excellent (91200 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................4 early in the morning increasing to 62 in the
afternoon.
Haines Index........5 to 6 or moderate to high potential for large
plume dominated fire growth.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........94 97 96 70 73 83
Weather cov..... ISOLTD ISOLTD ISOLTD ISOLTD
Weather type....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........ ISOLTD ISOLTD ISOLTD
CWR.............10 10 20 20 20 20
Temp............59 60 63 66 68 69
RH..............67 63 58 52 44 42
20 ft wind......SW 6 SW 7 SW 7 SW 11 SW 16 SW 17
20 ft wind gust.11 11 12 18 26 26
Mix hgt (ft)....500 500 1300 3900 5800 4500
Mixing wind......S 5 SW 5 S 6 S 10 SW 17 SW 22
LVORI...........3 3 2 2 1 1
ADI.............4 4 9 27 56 62
Haines index....6 5 5 5 5 5
VRate mph-ft/1K.2 2 7 39 99 96
$$
Forecaster...Sava
Requested by...Todd Caudill
Type of request...PRESCRIBED
.TAG 2411137.0/RNK
.DELDT 04/16/24
.FormatterVersion 2.0.0
.EMAIL todd.caudill@usda.gov