900
FNUS72 KFFC 200838
FWSFFC
SPOT FORECAST FOR A.H. STEPHENS UNIT 1...GEORGIA STATE PARKS AND HISTORIC SITES
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
338 AM EST TUE JAN 20 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
GOOD MORNING. SURFACE HIGH PRESSURE SETTLING IN OVER THE REGION WILL
PROMOTE DRY CONDITIONS TODAY. SKIES ARE EXPECTED TO BE MOSTLY CLEAR
THROUGHOUT THE DAY, WITH ONLY A FEW PASSING HIGH CLOUDS. AT IGNITION
TIME, TEMPERATURES WILL BE AROUND 40 DEGREES, INCREASING TO A HIGH
OF AROUND 49 BY THE MID AFTERNOON. DUE TO A DEEP POOL OF DRY AIR
UNDER THE HIGH AND STRONG BOUNDARY LAYER MIXING, RELATIVE HUMIDITY
VALUES ARE FORECAST TO BE BELOW 30 PERCENT BY IGNITION TIME. RH WILL
CONTINUE TO DROP BELOW 20 PERCENT BETWEEN 12 PM - 1 PM AND DOWN TO A
MINIMUM AROUND 16 PERCENT AROUND 3 PM. A FIRE DANGER STATEMENT IS IN
EFFECT ACROSS THE AREA THROUGH 7 PM THIS EVENING. WINDS AT THE BURN
SITE ARE EXPECTED TO BE NW AT 5-7 MPH THROUGH THE MID-AFTERNOON,
DIMINISHING AFTER 3 PM AS THE CENTER OF THE HIGH PRESSURE MOVES
CLOSER. TRANSPORT WINDS WILL SIMILARLY BE NW, BETWEEN 12-14 MPH,
THEN GRADUALLY DIMINISHING AFTER 4 PM. MIXING HEIGHTS PEAKING
BETWEEN 3000-3500 FT WILL CONTRIBUTE TO ADI MAINLY BETWEEN 45-55
THIS AFTERNOON.
WINDS WILL BECOME LIGHT AND VARIABLE SHORTLY AFTER SUNSET AND
THROUGH THE OVERNIGHT HOURS. IN SPITE OF THIS, RH VALUES WILL ONLY
RISE BETWEEN 60-65 PERCENT AND INHIBIT THE DEVELOPMENT OF ANY SMOKE
FOG. PLEASE FEEL FREE TO CONTACT US IF YOU HAVE ANY FURTHER
QUESTIONS OR CONCERNS.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 49.
MIN HUMIDITY........16 PERCENT.
DEWPOINT............9 DECREASING TO 6 IN THE AFTERNOON.
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH LATE IN THE MORNING
BECOMING LIGHT.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 14 MPH.
LVORI...............2.
ADI.................20 TO 56.
PCPN AMOUNT.........0.00 INCHES.
CEILING (KFT).......25.
TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........17 19 15 12 9 6 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0
TEMP............40 44 46 48 49 48 46
DEWPOINT........11 8 5 5 5 5 8
RH..............29 22 18 17 16 17 21
20 FT WIND DIR..NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 5 3 2
20 FT WIND GUST.15 15 14 14 13 12 8
MIX HGT (KFT)...2.1 2.5 3.1 3.3 3.4 3.3 1.9
TRANSP WIND DIR.NW NW NW NW NW NW NW
TRANSP WIND SPD.13 14 14 14 13 12 8
LVORI...........1 1 1 1 1 1 2
ADI.............35 45 53 56 53 45 20
CEILING (KFT)...25 25 25 25 25 25 25
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 24.
MAX HUMIDITY........63 PERCENT.
DEWPOINT............10.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 3 TO 7 MPH SHIFTING TO THE EAST
AROUND 5 MPH AFTER 3 AM.
LVORI...............3.
ADI.................2 TO 3.
PCPN AMOUNT.........0.00 INCHES.
CEILING (KFT).......25.
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 7 7 4 2 3 4 5 14 17 22 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............42 37 34 32 30 29 28 27 26 26 25 24
DEWPOINT........9 11 11 11 11 12 11 11 11 10 10 11
RH..............25 35 37 41 44 48 48 50 53 52 53 56
20 FT WIND DIR..W W W W W NW N N N NE E E
20 FT WIND SPD..1 1 1 1 1 1 0 0 0 1 1 1
20 FT WIND GUST.7 5 5 5 3 3 3 3 3 3 3 3
MIX HGT (KFT)...0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W W W NW NW NW NW N NE NE E E
TRANSP WIND SPD.6 7 7 6 5 5 3 3 5 5 5 5
LVORI...........2 2 2 2 2 2 2 2 3 3 3 3
ADI.............3 3 3 3 2 2 2 2 2 2 2 2
CEILING (KFT)...25 25 25 25 25 25 25 25 25 25 25 25
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........27 PERCENT.
DEWPOINT............13 INCREASING TO 22.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 9 MPH SHIFTING TO THE SOUTH 8 TO 12
MPH IN THE LATE MORNING AND AFTERNOON.
LVORI...............2.
ADI.................5 TO 38.
PCPN AMOUNT.........0.00 INCHES.
CEILING (KFT).......25 DECREASING TO 20 LATE IN THE AFTERNOON.
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 32 45 46 48 55 63 71 72 74 76 78
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............24 24 24 29 37 42 47 50 52 53 52 50
DEWPOINT........11 12 13 15 16 17 18 18 19 21 22 24
RH..............56 59 63 54 43 36 31 28 27 28 30 36
20 FT WIND DIR..E E NE E E SE SE S S S S S
20 FT WIND SPD..1 1 1 1 1 2 3 3 3 3 2 2
20 FT WIND GUST.3 5 5 6 7 8 8 9 9 8 8 7
MIX HGT (KFT)...0.4 0.4 0.4 0.8 1.3 1.8 2.4 2.7 2.8 2.7 2.4 1.8
TRANSP WIND DIR.E E E SE SE S S S S SW SW SW
TRANSP WIND SPD.5 5 7 9 10 10 12 12 10 10 9 8
LVORI...........3 3 3 2 2 2 1 1 1 1 2 2
ADI.............5 5 7 9 17 25 33 37 38 35 29 18
CEILING (KFT)...25 25 25 25 25 25 25 25 25 25 25 20
FORECASTER...KING
REQUESTED BY...PHIL DELESTREZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2600506.0/FFC
.DELDT 01/20/26
.FORMATTERVERSION 2.0.0
.EMAIL PHIL.DELESTREZ@DNR.GA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page