374  
FNUS72 KFFC 141235  
FWSFFC  
 
SPOT FORECAST FOR PINEKNOT A-4 WEST...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE PEACHTREE CITY GA  
835 AM EDT THU OCT 14 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON OCTOBER 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
DRY AND PARTLY SUNNY TO PARTLY CLOUDY CONDITIONS WILL PERSIST  
THROUGH THE DAY TODAY. PATCHY MORNING FOG WILL DISSIPATE BY MID-  
MORNING. SCATTERED CUMULUS WILL DEVELOP THROUGH THE AFTERNOON WITH  
MIXING HEIGHTS INCREASING TO AROUND 4000-4500 FT BY AFTERNOON.  
WINDS WILL BE VERY LIGHT TODAY WITH DIRECTION EITHER VARIABLE OR  
EASTERLY AT SPEEDS NEAR CALM TO 3-4 MPH AT 20 FT. TRANSPORT WINDS  
WILL THUS ALSO BE VERY LIGHT UNDER 5 MPH. MINIMUM RELATIVE  
HUMIDITY VALUES ARE FORECAST TO BE IN THE UPPER 40S TO NEAR 50  
PERCENT THIS AFTERNOON. OVERNIGHT, EXPECT THE POTENTIAL AGAIN FOR  
PATCHY FOG FORMATION THROUGH THE MORNING HOURS ON FRIDAY. DRY  
WEATHER WILL PERSIST THROUGH TOMORROW.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 84.  
MIN HUMIDITY........49 PERCENT.  
DEWPOINT............62.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......4200 FT AGL.  
TRANSPORT WINDS.....EAST 2 TO 3 MPH SHIFTING TO THE SOUTH 1 TO 2  
MPH EARLY IN THE AFTERNOON, THEN SHIFTING TO  
THE EAST 2 TO 3 MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (1900 KNOT-FT).  
LVORI...............4.  
ADI.................8 INCREASING TO 17 LATE IN THE AFTERNOON.  
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
PCPN AMOUNT.........0.00 INCHES.  
CEILING (KFT).......25.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........57 50 48 45 45 45 52 50 53  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1  
TEMP............64 70 75 78 80 82 83 83 83  
DEWPOINT........61 63 64 63 63 62 62 62 62  
RH..............92 81 69 61 56 52 49 49 49  
20 FT WIND DIR..E E SE SE SE SE NE N NE  
20 FT WIND SPD..2 2 2 2 2 0 1 2 2  
20 FT WIND GUST. 4 2 4 4  
MIX HGT (KFT)...0.2 1.2 2.2 2.7 3.6 4.1 4.1 4.2 4.2  
TRANSP WIND DIR.E E SE SE S SW S E NE  
TRANSP WIND SPD.2 3 3 2 1 1 1 2 3  
LVORI...........6 4 3 3 3 2 2 2 2  
ADI.............3 5 10 9 6 4 7 12 17  
HAINES INDEX....4 4 4 4 4 4 4 4 5  
VRATE KT-FT/1K..2 5 7 6 3 2 5 10 13  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR  
CEILING (KFT)...25 25 25 25 25 25 25 25 25  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING  
PARTLY CLOUDY (25-35 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 61.  
MAX HUMIDITY........97 PERCENT.  
DEWPOINT............62.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....EAST 2 TO 3 MPH DECREASING TO 1 TO 2 MPH IN THE  
LATE EVENING AND OVERNIGHT.  
SMOKE DISPERSAL.....POOR (300 KNOT-FT).  
LVORI...............5.  
ADI.................2.  
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
PCPN AMOUNT.........0.00 INCHES.  
CEILING (KFT).......25.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........55 67 69 64 53 47 41 28 21 18 12 9  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............81 77 73 70 68 67 66 65 64 63 63 63  
DEWPOINT........62 63 64 63 63 64 63 63 62 61 61 61  
RH..............53 62 73 80 84 90 90 91 93 93 93 95  
20 FT WIND DIR..E E E E SE SE SE SE E SE E E  
20 FT WIND SPD..3 2 2 2 2 2 2 1 1 1 1 1  
20 FT WIND GUST.5 4 4 4 4 2 2 2 2 2  
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3  
TRANSP WIND DIR.NE E E E SE SE SE SE SE E E E  
TRANSP WIND SPD.3 3 2 2 2 2 2 1 1 1 1 1  
LVORI...........2 3 3 5 5 7 7 7 8 8 8 8  
ADI.............3 1 1 1 1 1 1 1 1 1 0 0  
HAINES INDEX....5 5 4 4 4 4 4 4 4 4 4 4  
VRATE KT-FT/1K..10 4 0 0 0 0 0 0 0 0 0 0  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
CEILING (KFT)...25 25 25 25 25 25 25 25 25 25 25 25  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 86.  
MIN HUMIDITY........47 PERCENT.  
DEWPOINT............63.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH LATE  
IN THE AFTERNOON.  
MIXING HEIGHT.......4500 FT AGL.  
TRANSPORT WINDS.....EAST 1 TO 2 MPH SHIFTING TO THE SOUTHWEST 3 TO  
6 MPH IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR (300 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO FAIR (20500 KNOT-FT) IN THE  
AFTERNOON.  
LVORI...............6.  
ADI.................3 INCREASING TO 27.  
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
PCPN AMOUNT.........0.00 INCHES.  
CEILING (KFT).......25.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........9 11 11 10 7 6 6 8 8 7 5 4  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............62 62 62 67 72 77 80 82 84 85 85 84  
DEWPOINT........61 61 61 63 64 65 65 64 64 63 62 62  
RH..............96 95 97 85 75 67 60 55 51 48 47 48  
20 FT WIND DIR..E E E SE S SW SW SW SW SW SW SW  
20 FT WIND SPD..1 1 1 1 2 2 3 3 5 5 6 6  
20 FT WIND GUST.2 2 2 2 4 5 5 6 6 7 7  
MIX HGT (KFT)...0.3 0.3 0.3 0.2 1.3 2.4 2.9 3.8 4.3 4.3 4.5 4.5  
TRANSP WIND DIR.E E E SE SW W W W W W SW SW  
TRANSP WIND SPD.1 1 1 2 3 5 5 5 3 5 5 6  
LVORI...........9 9 8 5 3 3 2 2 2 2 2 2  
ADI.............0 1 1 2 6 14 17 20 20 22 26 28  
HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 5  
VRATE KT-FT/1K..0 0 0 3 8 10 11 14 15 16 19 21  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
CEILING (KFT)...25 25 25 25 25 25 25 25 25 25 25 25  
 

 
FORECASTER...WILLIS  
REQUESTED BY...MIKE THOMPSON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2119476.0/FFC  
.DELDT 10/14/21  
.FORMATTERVERSION 1.0.26  
.EMAIL MICHAEL.THOMPSON@TNC.ORG  
 
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