155
FNUS71 KRNK 231515
FWSRNK
SPOT FORECAST FOR DWR UNIT...DWR
NATIONAL WEATHER SERVICE BLACKSBURG VA
1115 AM EDT TUE APR 23 2024
FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WARM AND DRY TODAY WITH DECREASING HUMIDITIES AS MIXING BECOMES
MORE EFFICIENT. MIN RH WILL BE AROUND 20 PERCENT.
SOUTHWEST WINDS GUSTING TO 25MPH WILL ALLOW FOR GOOD VENTILATION.
WINDS DECREASE LATE EVENING AND DEW POINTS WILL BE ON THE RISE
AS MOISTURE INCREASES AHEAD OF AN APPROACHING FRONT TONIGHT.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 12 MPH. GUSTS UP TO 24 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........SOUTHWEST 13 TO 18 MPH.
SMOKE DISPERSAL.....GOOD (49400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (104200 KNOT-FT) IN THE
AFTERNOON.
LVORI...............1.
ADI.................67 TO 106.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........3 5 4 7 10 25
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............58 59 61 63 65 66
RH..............29 27 25 23 23 22
20 FT WIND DIR..SW SW SW SW SW SW
20 FT WIND SPD..7 8 9 9 10 12
20 FT WIND GUST.13 14 14 16 17 19
MIX HGT (KFT)...4.4 5.0 5.7 6.0 6.4 6.5
MIXNG WIND DIR..W SW SW SW SW SW
MIXNG WIND SPD..13 14 14 16 18 18
LVORI...........1 1 1 1 1 1
ADI.............67 77 89 106 82 85
HAINES INDEX....5 5 5 5 5 5
VRATE MPH-FT/1K.57 67 79 96 114 120
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (80-90 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........68 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 14 MPH SHIFTING TO THE
WEST 10 TO 14 MPH AFTER 3 AM. GUSTS UP TO 25
MPH.
MIXING HEIGHT.......600 FT AGL.
MIXING WINDS........SOUTHWEST 8 TO 16 MPH.
SMOKE DISPERSAL.....EXCELLENT (75700 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (4700 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................68 EARLY IN THE EVENING DECREASING TO 7 LATE IN
THE NIGHT.
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR
LARGE PLUME DOMINATED FIRE GROWTH.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........35 33 49 39 82 88
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 10 10
TEMP............65 61 58 56 54 52
RH..............24 35 40 44 49 58
20 FT WIND......S 12 S 12 SW 12 SW 12 SW 12 SW 14
20 FT WIND GUST.19 19 20 20 17 19
MIX HGT (FT)....5500 600 600 600 900 1200
MIXING WIND......S 16 S 9 S 9 SW 9 SW 8 SW 13
LVORI...........1 2 2 2 2 2
ADI.............68 8 9 8 7 11
HAINES INDEX....5 5 5 5 4 3
VRATE MPH-FT/1K.87 6 6 6 8 16
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) THEN BECOMING
SUNNY (15-25 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........WEST WINDS 9 TO 14 MPH WITH GUSTS TO AROUND 22
MPH.
MIXING HEIGHT.......6700 FT AGL.
MIXING WINDS........NORTHWEST 14 TO 22 MPH.
SMOKE DISPERSAL.....FAIR (16400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (94400 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................15 EARLY IN THE MORNING INCREASING TO 86 IN THE
AFTERNOON.
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE
PLUME DOMINATED FIRE GROWTH.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........79 60 32 16 24 27
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............10 10 10 10 0 0
TEMP............51 53 56 60 61 62
RH..............67 68 58 47 40 38
20 FT WIND......W 14 W 13 W 12 W 11 W 10 W 10
20 FT WIND GUST.19 22 20 19 18 18
MIX HGT (FT)....1100 2000 3800 5500 6700 6400
MIXING WIND......W 17 W 21 W 22 NW 20 NW 16 NW 15
LVORI...........3 1 1 1 1 1
ADI.............15 40 78 84 75 68
HAINES INDEX....3 3 4 4 4 4
VRATE MPH-FT/1K.20 42 82 108 108 95
FORECASTER...GRUVER
REQUESTED BY...TYLER URGO
TYPE OF REQUEST...PRESCRIBED
.TAG 2411976.0/RNK
.DELDT 04/23/24
.FORMATTERVERSION 2.0.0
.EMAIL TYLER.URGO@DCR.VIRGINIA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page