913
FNUS71 KRNK 101054
FWSRNK
SPOT FORECAST FOR PORTER MOUNTAIN RX...USFS
NATIONAL WEATHER SERVICE BLACKSBURG VA
654 AM EDT FRI APR 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON APRIL 11.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EXPECT A MIX OF SUN AND CLOUDS SATURDAY WITH A FRONT
MOVING ACROSS. NOT EXPECTING ANY WETTING RAIN. MIXING
SHOULD BE GOOD BY THE AFTERNOON, WIT MIN RH AROUND 38 PERCENT.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 5 TO 10 MPH SHIFTING TO THE NORTHWEST 9 TO
18 MPH IN THE LATE MORNING AND AFTERNOON, THEN
SHIFTING TO THE WEST AROUND 8 MPH LATE IN THE
AFTERNOON.
SMOKE DISPERSAL.....POOR (1400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (58000 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........42 50 42 35 28 30 32 34 31 30 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 10 10 10 10
TEMP............51 53 55 58 62 65 67 68 69 69 69
RH..............63 62 61 58 54 51 47 44 39 38 38
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 7 7 7 6 6 6 5
20 FT WIND GUST.11 11 11 13 14 14 14 13 13 12 10
MIX HGT (KFT)...0.3 0.3 1.1 2.1 3.0 3.6 4.3 5.0 5.0 4.9 4.9
MIXNG WIND DIR..W W W NW NW NW NW NW NW W W
MIXNG WIND SPD..5 6 10 15 18 18 15 13 12 9 8
VRATE MPH-FT/1K.2 2 11 31 55 64 67 64 55 47 39
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........NORTHWEST 1 TO 7 MPH SHIFTING TO THE SOUTH 1 TO
2 MPH OVERNIGHT, THEN INCREASING TO AROUND 3
MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....FAIR (19700 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (300 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 30 23 19 15 11 11 12 12 15 18 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 0 0 0 0 0 0 0 0 0 0
TEMP............68 66 64 62 59 57 55 54 53 52 51 51
RH..............43 46 50 54 59 64 67 71 73 75 75 76
20 FT WIND DIR..NW NW NW NW NW NW W S SE SE SE SE
20 FT WIND SPD..4 4 3 3 3 2 2 2 2 3 3 4
20 FT WIND GUST.10 7 6 6 6 6 5 6 6 6 6 7
MIX HGT (KFT)...3.4 1.8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
MIXNG WIND DIR..W W NW NW NW NW W SW S S S S
MIXNG WIND SPD..7 6 5 3 3 2 1 1 1 1 2 3
VRATE MPH-FT/1K.23 10 1 1 1 1 0 0 0 0 1 1
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH EARLY IN
THE MORNING, THEN INCREASING TO 8 TO 9 MPH WITH
GUSTS TO AROUND 17 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......6300 FT AGL.
MIXING WINDS........SOUTH 3 TO 12 MPH SHIFTING TO THE SOUTHWEST 14
TO 16 MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (86800 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........26 31 36 32 28 24 26 28 30 31 31 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............50 50 52 55 58 62 66 69 71 72 72 72
RH..............79 80 78 71 62 54 48 42 39 37 36 36
20 FT WIND DIR..SE SE SE SE S S S S S S S S
20 FT WIND SPD..4 4 5 5 6 6 7 7 8 8 9 9
20 FT WIND GUST.7 8 10 10 11 13 14 14 16 16 17 17
MIX HGT (KFT)...0.3 0.3 0.3 1.0 1.6 2.3 3.6 4.9 6.3 6.2 6.1 6.1
MIXNG WIND DIR..S S S S SW SW SW SW SW SW SW SW
MIXNG WIND SPD..3 3 5 7 12 14 15 15 15 16 16 16
VRATE MPH-FT/1K.1 1 1 7 18 32 54 74 94 97 100 98
FORECASTER...PERRY
REQUESTED BY...BURN BOSS
TYPE OF REQUEST...PRESCRIBED
.TAG 2609930.0/RNK
.DELDT 04/10/26
.FORMATTERVERSION 2.0.0
.EMAIL JONATHAN.CATRON@USDA.GOV,TODD.CAUDILL@USDA.GOV
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