Spot Forecast
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
770
FNUS71 KRNK 081039
FWSRNK
Spot Forecast for Row...USFS
National Weather Service Blacksburg VA
639 AM EDT Mon Jul 8 2024
Forecast is based on forecast start time of 0700 EDT on July 08.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Typical summertime weather pattern expected this week with
hot/humid weather during the day and muggy conditions with little
airflow at night. There will be a chance for afternoon and
evening thunderstorms each day, beginning today, but
wetting will be hit and miss.
Humidity minimums during the day are expected to remain above
50 percent with excellent recovery at night. Wind will be
light, generally down river late at night and early morning,
and up river during the afternoon and evening.
Today upriver wind is expected to begin between 10AM and 11AM.
.TODAY...
Sky/weather.........Partly sunny (50-60 percent). Isolated showers
and thunderstorms early in the afternoon.
Scattered showers and thunderstorms late in the
afternoon.
CWR (0.01 in).......10 percent increasing to 40 percent.
Max temperature.....Around 91.
Min humidity........55 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the afternoon.
Mixing height.......5800 ft AGL.
Mixing winds........Northwest around 1 mph shifting to the
southeast around 5 mph late in the afternoon.
Smoke dispersal.....Poor (800 knot-ft) early in the morning
increasing to fair (15900 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................2 to 22.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........70 54 41 43 46 49 53 53 50 51 54
Weather cov..... ISO SCT SCT SCT SCT
Weather type.... RW RW RW RW RW
Tstm cov........ ISO SCT SCT SCT SCT
CWR.............10 10 10 10 10 10 20 30 30 40 40
Temp............70 76 80 85 87 89 90 91 91 91 90
RH..............95 81 73 66 63 59 57 56 55 56 57
20 FT wind dir..N W W S SE SE S S S S S
20 FT wind spd..0 1 1 1 2 3 3 4 4 4 4
20 FT wind gust. 2 4 5 6 6 6 6
Mix hgt (kft)...0.6 1.1 1.8 2.6 4.1 5.2 5.8 5.7 5.5 4.8 4.0
Mixng wind dir..NW NW N N NE NE NE NE E SE SE
Mixng wind spd..1 1 1 2 2 2 2 2 2 3 5
LVORI...........5 5 3 3 2 2 2 2 2 2 2
ADI.............2 2 3 6 12 15 14 15 18 19 22
Haines index....3 3 4 4 4 4 4 4 4 4 4
VRate mph-ft/1K.1 1 3 5 10 12 13 13 15 17 18
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent) then becoming
partly cloudy (35-45 percent). Scattered
showers and thunderstorms early in the evening,
then isolated showers and thunderstorms late
in the evening.
CWR (0.01 in).......40 percent decreasing to 10 percent.
Min temperature.....Around 73.
Max humidity........93 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms early in the evening.
Mixing height.......500 ft AGL.
Mixing winds........South 1 to 10 mph shifting to the southwest
around 1 mph overnight.
Smoke dispersal.....Fair (28900 knot-ft) early in the evening
decreasing to poor (400 knot-ft) late in the
night.
LVORI...............5.
ADI.................0 to 35.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........52 46 30 36 32 39
Weather cov.....SCTTRD ISOLTD
Weather type....RNSHWR RNSHWR NONE NONE NONE NONE
Tstm cov........SCTTRD ISOLTD
CWR.............40 20 10 10 10 10
Temp............89 84 79 76 75 73
RH..............59 69 82 88 90 92
20 ft wind......S 3 S 2 N 0 N 0 N 0 N 0
20 ft wind gust.5 4 1
Mix hgt (ft)....4200 1300 600 500 500 500
Mixing wind.....SE 7 S 10 S 6 S 1 SW 1 SW 1
LVORI...........1 3 5 6 7 8
ADI.............35 5 2 1 1 0
Haines index....4 4 4 4 4 4
VRate mph-ft/1K.29 13 3 1 1 1
.TUESDAY...
Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
showers and thunderstorms in the
afternoon.
CWR (0.01 in).......10 percent increasing to 30 percent.
Max temperature.....Around 95.
Min humidity........51 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the afternoon.
Mixing height.......5900 ft AGL.
Mixing winds........Southwest 1 to 2 mph shifting to the southeast
3 to 7 mph in the afternoon.
Smoke dispersal.....Poor (400 knot-ft) early in the morning
increasing to fair (25100 knot-ft) in the
afternoon.
LVORI...............5.
ADI.................0 to 37.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........41 42 25 43 48 45
Weather cov..... S CHC S CHC
Weather type....NONE NONE NONE NONE RNSHWR RNSHWR
Tstm cov........ S CHC S CHC
CWR.............0 0 10 10 20 20
Temp............74 78 84 89 92 95
RH..............93 85 78 68 59 51
20 ft wind......NW 1 W 1 SW 1 S 2 S 2 S 2
20 ft wind gust. 4 6 7 7
Mix hgt (ft)....500 700 2600 4500 5900 4800
Mixing wind.....SW 1 W 1 SW 2 SW 2 SE 3 SE 6
LVORI...........8 5 4 3 2 1
ADI.............0 1 6 15 25 33
Haines index....4 4 4 4 4 4
VRate mph-ft/1K.1 1 5 12 20 26
$$
Forecaster...Silverman
Requested by...Brent Foltz
Type of request...WILDFIRE
.TAG 2417590.2/RNK
.DELDT 07/08/24
.FormatterVersion 2.0.0
.EMAIL brent.foltz@usda.gov