210  
FNUS71 KRNK 201318  
FWSRNK  
 
SPOT FORECAST FOR LITTLE CREEK...USFS  
NATIONAL WEATHER SERVICE BLACKSBURG VA  
818 AM EST WED NOV 20 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 0900 EST ON NOVEMBER 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
A STRONG COLD FRONT ARRIVES THIS EVENING, RESULTING IN BELOW NORMAL  
TEMPERATURES FROM THURSDAY TO SATURDAY. PERSISTENT UPSLOPE SNOW  
SHOWERS ACROSS THE MOUNTAINS OF SOUTHWEST VIRGINIA TAPERING TO  
FLURRIES TOWARDS THE BLUE RIDGE. GUSTY NORTHWEST WINDS AND COLD WIND  
CHILLS ARE ALSO EXPECTED THROUGH THE END OF THE WEEK. WIND  
GUSTS MAY REACH UP TO 45 MPH ALONG THE RIDGES.  
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF  
RAIN SHOWERS IN THE AFTERNOON.  
CWR (0.01 IN).......10 PERCENT INCREASING TO 30 PERCENT  
IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 65.  
MIN HUMIDITY........73 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 10 MPH WITH  
GUSTS TO AROUND 18 MPH LATE IN THE MORNING,  
THEN SHIFTING TO THE WEST 8 TO 12 MPH WITH  
GUSTS TO AROUND 22 MPH LATE IN THE AFTERNOON.  
MIXING HEIGHT.......2500 FT AGL.  
MIXING WINDS........SOUTHWEST 6 TO 13 MPH INCREASING TO WEST AROUND  
30 MPH.  
SMOKE DISPERSAL.....POOR (2500 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (50100 KNOT-FT) IN THE  
AFTERNOON.  
LVORI...............6.  
ADI.................6 EARLY IN THE MORNING INCREASING TO 51 IN THE  
AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (EST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........61 64 66 63 63 58 49 53 68  
WEATHER COV..... SCH SCH SCH CHC CHC SCH  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........  
CWR.............10 10 10 20 20 20 30 30 20  
TEMP............56 58 61 63 64 64 62 59 54  
RH..............97 95 88 83 80 76 75 74 73  
20 FT WIND DIR..SW SW SW SW W W W W W  
20 FT WIND SPD..4 4 5 6 7 8 10 11 12  
20 FT WIND GUST.6 7 8 10 13 16 18 20 23  
MIX HGT (KFT)...0.5 0.9 1.1 1.3 1.6 2.1 2.1 2.5 1.6  
MIXNG WIND DIR..SW SW SW SW SW SW W W W  
MIXNG WIND SPD..6 7 7 8 9 13 17 23 30  
LVORI...........8 6 5 4 4 3 3 3 3  
ADI.............6 9 10 11 16 26 35 50 51  
HAINES INDEX....3 3 3 3 3 3 3 3 3  
VRATE MPH-FT/1K.3 6 8 10 15 27 37 58 47  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING  
MOSTLY CLEAR (10-20 PERCENT).  
CWR (0.01 IN).......10 PERCENT.  
MIN TEMPERATURE.....AROUND 32.  
MAX HUMIDITY........81 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 28 MPH.  
MIXING HEIGHT.......400 FT AGL.  
MIXING WINDS........NORTHWEST 31 TO 38 MPH BECOMING WEST 8 TO 10  
MPH.  
SMOKE DISPERSAL.....EXCELLENT (69400 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (4000 KNOT-FT) LATE IN THE  
NIGHT.  
LVORI...............4.  
ADI.................51 EARLY IN THE EVENING DECREASING TO 7 LATE IN  
THE NIGHT.  
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........75 55 22 15 15 5 5 5 10 15 20 25  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............10 0 0 0 0 0 0 0 0 0 0 0  
TEMP............46 42 40 37 36 35 35 35 34 34 33 32  
RH..............81 79 77 79 78 77 74 70 71 71 71 74  
20 FT WIND DIR..NW NW NW NW NW NW NW NW W W W W  
20 FT WIND SPD..15 15 14 13 13 12 12 12 12 11 11 11  
20 FT WIND GUST.25 26 28 28 26 25 25 23 24 23 23 23  
MIX HGT (KFT)...2.1 2.1 0.8 0.5 0.4 0.5 0.6 0.5 0.6 0.6 0.5 0.6  
MIXNG WIND DIR..NW NW NW NW NW NW NW W W W W W  
MIXNG WIND SPD..36 38 31 22 13 10 10 10 10 9 9 8  
LVORI...........3 3 3 3 4 4 3 3 3 3 3 3  
ADI.............48 51 28 19 11 9 9 9 9 8 8 7  
HAINES INDEX....3 3 4 4 4 4 4 4 3 3 3 3  
VRATE MPH-FT/1K.77 80 26 11 6 5 6 5 6 6 5 5  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF  
RAIN SHOWERS.  
CWR (0.01 IN).......10 PERCENT IN THE MORNING INCREASING TO 40  
PERCENT IN THE AFTERNOON DECREASING TO 30 PERCENT.  
MAX TEMPERATURE.....AROUND 38.  
MIN HUMIDITY........65 PERCENT.  
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25  
MPH.  
MIXING HEIGHT.......4100 FT AGL.  
MIXING WINDS........WEST 7 TO 16 MPH INCREASING TO 24 TO 32 MPH IN  
THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR (5400 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (73700 KNOT-FT) IN THE  
AFTERNOON INCREASING TO GOOD (57000 KNOT-FT)  
EARLY IN THE MORNING INCREASING TO EXCELLENT  
(113600 KNOT-FT) IN THE AFTERNOON IN THE LATE  
MORNING AND AFTERNOON.  
LVORI...............2.  
ADI.................9 EARLY IN THE MORNING INCREASING TO 90 IN THE  
AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........26 30 44 51 59 74 74 78 77 72 68 65  
WEATHER COV..... SCH CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW RW SW SW  
TSTM COV........  
CWR.............0 0 10 10 20 30 30 40 40 40 40 30  
TEMP............32 32 32 33 35 36 36 36 35 35 33 31  
RH..............73 73 75 71 67 65 65 65 66 67 70 74  
20 FT WIND DIR..W W W W W W W W W W W W  
20 FT WIND SPD..12 11 12 13 13 13 13 13 13 13 13 13  
20 FT WIND GUST.22 20 22 24 24 25 25 24 24 24 24 23  
MIX HGT (KFT)...0.8 1.8 2.6 3.5 4.0 4.0 4.1 4.0 3.7 3.5 3.3 2.7  
MIXNG WIND DIR..W W W W W W W W W W W W  
MIXNG WIND SPD..7 9 16 24 31 32 31 29 26 25 24 24  
LVORI...........3 3 3 3 1 1 1 1 1 1 1 3  
ADI.............9 17 36 63 86 90 87 80 72 65 60 55  
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3  
VRATE MPH-FT/1K.6 17 42 85 124 131 127 115 100 88 79 66  
 
 
FORECASTER...STONEFIELD  
REQUESTED BY...JOSHUA ORR  
TYPE OF REQUEST...WILDFIRE  
.TAG 2426952.1/RNK  
.DELDT 11/20/24  
.FORMATTERVERSION 2.0.0  
.EMAIL RILEE.NILSSON@USDA.GOV,JOSHUA.ORR@USDA.GOV  
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