Spot Forecast Issued by NWS Blacksburg, VA
000
FNUS71 KRNK 191044
FWSRNK
Spot Forecast for Blue Panther...USFS
National Weather Service Blacksburg VA
644 AM EDT Fri Apr 19 2024
Forecast is based on ignition time of 0700 EDT on April 19.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
More clouds today with scattered showers/few storms. Noticeable increase
in RH as a front tracks into and through the area. A few showers are
possible between 10am-1pm, then again later this afternoon/early evening.
A few cloud to ground lightning strikes possible as well mainly
with the activity this afternoon. Front moves across this evening,
with south winds turning west. Poor vent rates today into tonight.
Dry weather expected Saturday with better mixing, lower RH and more sun.
.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of rain
showers through the day. Chance of
thunderstorms in the afternoon.
CWR (0.01 in).......10 percent increasing to 30 percent late in
the morning increasing to 50 percent late in the
afternoon.
Max temperature.....Around 68.
Min humidity........55 percent.
Wind (20 ft)........Light winds becoming south 5 to 8 mph in the
late morning and afternoon. Gusty and erratic
winds expected near thunderstorms late in the
afternoon.
Mixing height.......2900 ft AGL.
Mixing winds........Southeast 3 to 6 mph shifting to the south
around 3 mph late in the afternoon.
Smoke dispersal.....Poor (1400 knot-ft).
LVORI...............3.
ADI.................4 to 11.
Haines Index........3 to 6 or very low to high potential for large
plume dominated fire growth.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........63 76 83 93 97 99 79 55 70 82 89
Weather cov..... SCH CHC CHC SCH CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW RW RW RW
Tstm cov........ CHC CHC CHC SCH
CWR.............10 10 20 30 30 20 40 40 40 50 40
Temp............54 55 57 59 60 61 62 66 67 68 68
RH..............71 73 73 72 71 68 68 60 60 55 57
20 FT wind dir..SE S S S S S SW SW SW SW SW
20 FT wind spd..3 4 5 5 6 6 7 8 7 6 6
20 FT wind gust.4 6 6 7 7 10 10 11 10 11 10
Mix hgt (kft)...0.4 0.9 1.1 1.6 1.6 1.8 2.1 2.8 2.9 2.8 2.0
Mixng wind dir..SE SE SE SE SE SE SE SE SE S S
Mixng wind spd..3 5 6 6 6 5 5 3 3 3 3
LVORI...........4 3 3 3 3 3 2 2 2 3 3
ADI.............4 5 7 10 10 9 11 11 10 10 9
Haines index....6 5 5 5 5 5 4 4 3 3 3
VRate mph-ft/1K.2 4 6 9 10 9 9 10 9 9 7
.TONIGHT...
Sky/weather.........Partly to Mostly cloudy (40-80 percent). Chance of
showers and thunderstorms in the evening.
CWR (0.01 in).......40 percent decreasing to 10 percent.
Min temperature.....Around 47.
Max humidity........88 percent.
Wind (20 ft)........Southwest winds 5 to 6 mph shifting to the
northwest 5 to 8 mph in the late evening and
overnight. Gusty and erratic winds expected
near thunderstorms early in the evening. Gusty
and erratic winds expected near thunderstorms
early in the evening.
Mixing height.......600 ft AGL.
Mixing winds........Southwest 2 to 5 mph shifting to the northwest
3 to 10 mph overnight.
Smoke dispersal.....Poor (1500 knot-ft).
LVORI...............5.
ADI.................2 to 9.
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 (%).........73 55 65 50 55 69
Weather cov.....CHANCE CHANCE
Weather type....RNSHWR RNSHWR NONE NONE NONE NONE
Tstm cov........S CHC CHANCE
CWR.............40 30 10 10 0 0
Temp............67 62 59 55 53 51
RH..............64 73 82 88 86 79
20 ft wind......SW 6 SW 6 W 6 NW 7 NW 8 NW 8
20 ft wind gust.10 11 10 13 14 14
Mix hgt (ft)....1500 900 700 800 600 1100
Mixing wind......S 3 SW 5 SW 3 W 2 NW 5 NW 9
LVORI...........3 3 5 6 5 4
ADI.............8 3 2 2 4 8
Haines index....3 3 3 3 4 4
VRate mph-ft/1K.6 4 2 2 3 10
.SATURDAY...
Sky/weather.........Mostly sunny (35-45 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 63.
Min humidity........3028 percent.
Wind (20 ft)........Northwest winds 6 to 10 mph. Gusts up to 20 mph
early in the morning.
Mixing height.......5900 ft AGL.
Mixing winds........Northwest 5 to 9 mph increasing to west 17 to
22 mph.
Smoke dispersal.....Poor (4400 knot-ft) early in the morning
increasing to excellent (101200 knot-ft) in the
afternoon increasing to excellent (111300
knot-ft) late in the afternoon.
LVORI...............3.
ADI.................7 early in the morning increasing to 97 in the
afternoon.
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 (%).........56 42 36 26 22 33
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Temp............49 51 54 57 60 61
RH..............75 64 50 38 32 28
20 ft wind......NW 8 NW 8 NW 8 NW 9 W 9 W 10
20 ft wind gust.14 16 12 13 14 16
Mix hgt (ft)....1000 1200 2800 4100 5400 5700
Mixing wind......NW 9 NW 5 W 6 W 9 W 15 W 21
LVORI...........4 3 2 1 1 1
ADI.............8 7 18 45 64 89
Haines index....4 4 4 4 4 4
VRate mph-ft/1K.9 6 15 38 82 116
$$
Forecaster...Perry
Requested by...Adam Christie
Type of request...PRESCRIBED
.TAG 2410688.13/RNK
.DELDT 04/19/24
.FormatterVersion 2.0.0
.EMAIL Adam.christie@usda.gov