427
FNUS72 KFFC 171016
FWSFFC
SPOT FORECAST FOR BRRD - BROWN TRACT...USFS
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
516 AM EST WED DEC 17 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 EST ON DECEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
DRY WEATHER WILL PERSIST TODAY, THOUGH HIGH CLOUDS WILL CONTINUE
TO INCREASE WITH MOSTLY CLOUDY TO OVERCAST HIGH CLOUDS EXPECTED
THROUGH THE DAY. MOISTURE WILL BEGIN TO SLIGHTLY INCREASE ON
WEDNESDAY, THOUGH MINIMUM RELATIVE HUMIDITY VALUES WILL STILL
LIKELY DROP INTO THE MID TO UPPER 20 PERCENT RANGE DURING THE
AFTERNOON. NEAR-SURFACE WINDS WILL REMAIN VERY LIGHT AND VARIABLE
WITH SPEEDS LARGELY UNDER 5 MPH AND DIRECTION FAVORING A GENERAL W
TO SW DIRECTION THROUGH THE BULK OF THE AFTERNOON. TRANSPORT
WINDS WILL ALSO BE LIGHT AND LARGELY W TO SW AT 5-8 MPH. MIXING
HEIGHTS ARE FORECAST TO PEAK NEAR 1500 FEET, MEANING THE DRIEST
AIR MAY NOT MIX DOWN TO THE SURFACE AND MOISTURE MAY NOT MIX UP TO
HIGHER ELEVATIONS. THIS RAISES SOME CONCERNS ABOUT LOW RELATIVE
HUMIDITY VALUES FOR ANYTHING ABOVE 1500FT AND THE HIGHER RIDGE
LINE LOCATED TO THE SOUTH. ONE CAVEAT TO THIS WILL BE, SHOULD
CLOUD COVER THIN AT ALL DURING THE DAY, MIXING MAY OVERPERFORM AND
QUICKLY REDUCE RELATIVE HUMIDITY VALUES CLOSER TO 20 PERCENT. THE
GOOD NEWS WITH THIS LOCATION AS, OPPOSED TO THE BIRD DOG LOCATION,
IS THE PROXIMITY TO THE LAKE WHICH MAY BE ENOUGH TO MODERATE
DEWPOINT TEMPERATURES SLIGHTLY SHOULD GREATER MIXING OCCUR.
CLOUDS WILL BEGIN TO THICKEN AT LOWER HEIGHT AS WE MOVE INTO THE
OVERNIGHT HOURS AND INTO THURSDAY MORNING. CEILINGS A FEW HOURS
BEFORE SUNRISE MAY DECREASE TO BELOW 1000 FT. RAIN THEN RETURNS ON
THURSDAY AHEAD OF A COLD FRONT WITH WIDESPREAD SHOWERS EXPECTED
BY LATE THURSDAY AND TOTAL RAINFALL AS HIGH AS A HALF INCH TO
PERHAPS NEAR AN INCH BY FRIDAY.
AS ALWAYS, IF YOU HAVE ANY QUESTIONS OR CONCERNS PLEASE FEEL FREE
TO REACH OUT TO US AND WE WILL MAKE SURE TO LET YOU KNOW IF THERE
IS A SIGNIFICANT CHANGE TO THE FORECAST.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........26 PERCENT.
DEWPOINT............13 INCREASING TO 24.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 7 MPH SHIFTING TO THE WEST EARLY
IN THE AFTERNOON, THEN SHIFTING TO THE
SOUTHEAST AROUND 5 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1600 KNOT-FT).
LVORI...............2.
ADI.................4 TO 15.
PCPN AMOUNT.........0.00 INCHES.
CEILING (KFT).......25.
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........70 77 74 67 58 58 63 67 73 82
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............30 34 40 48 52 54 55 55 54 52
DEWPOINT........12 14 18 19 19 20 21 23 24 25
RH..............45 44 40 32 27 26 26 28 31 34
20 FT WIND DIR..N N S NW NW NW NW E SE SE
20 FT WIND SPD..0 0 1 1 1 1 1 1 1 1
20 FT WIND GUST.2 2 2 3 5 6 6 5 5 5
MIX HGT (KFT)...0.5 0.4 0.5 1.1 1.4 1.7 1.8 1.6 0.8 0.4
TRANSP WIND DIR.SW SW SW W W W W SW S SE
TRANSP WIND SPD.6 6 5 7 6 7 7 5 5 5
LVORI...........2 2 2 2 2 2 2 2 2 2
ADI.............5 5 5 9 11 14 15 11 5 4
VRATE KT-FT/1K..2 2 2 6 8 10 10 7 3 2
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...25 25 25 25 25 25 25 25 25 25
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
CWR.................10 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........100 PERCENT.
DEWPOINT............27 INCREASING TO 39.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (1600 KNOT-FT).
LVORI...............4.
ADI.................2 TO 4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (KFT).......25 DECREASING TO 0.7.
TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........79 73 64 68 79 93
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 10
CHC OF THDR (%).0 0 0 0 0 0
TEMP............48 44 40 37 38 40
DEWPOINT........25 28 30 29 32 37
RH..............40 53 67 73 77 88
20 FT WIND......S 1 N 0 SE 1 SE 1 SE 1 SE 2
20 FT WIND GUST.3 3 5 5 6 7
MIX HGT (FT)....400 400 400 400 500 500
TRANSPORT WIND..S 5 S 6 SE 7 SE 8 SE 9 SE 10
LVORI...........2 2 3 3 4 6
ADI.............2 3 3 4 4 4
VRATE KT-FT/1K..2 2 3 3 4 5
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
CEILING (KFT)...25 25 20 15 12 1.5
FORECASTER...SMARLOW
REQUESTED BY...CHARLES GRAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2527627.0/FFC
.DELDT 12/14/25
.FORMATTERVERSION 2.0.0
.EMAIL CHARLES.O.GRAY@USDA.GOV
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