881
FXUS62 KFFC 091749
AFDFFC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
149 PM EDT FRI OCT 9 2026
..NEW 18Z AVIATION DISCUSSION
KEY MESSAGES
- INCREASING CLOUDS THROUGH THE DAY.
- HURRICANE ISAIAS IS FORECAST TO TRACK TO THE NORTH AND EAST
LATER ON TODAY, BEFORE MAKING LANDFALL ALONG THE NORTHERN GULF
COAST LATE ON FRIDAY.
- ISAIAS WILL WILL BRING SIGNIFICANT IMPACTS TO THE AREA TONIGHT
THROUGH SUNDAY, WITH A LONG DURATION OF STRONG WINDS, HEAVY
RAIN WITH LOCALIZED FLOODING, AND TORNADOES.
SHORT TERM
(TODAY THROUGH SATURDAY)
ISSUED AT 511 AM EDT FRI OCT 9 2026
OVERCAST AND MILD CONDITIONS ARE EXPECTED TO START OUT TODAY BEFORE
HURRICANE ISAIAS BEGINS TO IMPACT ALL OF NORTH AND CENTRAL
GEORGIA THIS EVENING AND INTO THE OVERNIGHT HOURS OF EARLY
SATURDAY MORNING. HURRICANE ISAIAS WILL MAKE LANDFALL OVER THE
GULF COAST AND THEN WEAKEN AS IT MOVES NORTHWARD ACROSS
MISSISSIPPI AND ALABAMA INTO THE TN VALLEY. NORTH AND CENTRAL
GEORGIA WILL BE ON THE NORTHEAST QUADRANT OF THE STORM WITH A
PROLONGED PERIOD OF STRONG WINDS, HEAVY RAINFALL WITH LOCALIZED
FLASH FLOODING, AND A FEW TORNADOES.
STRONG WINDS: AS ISAIAS MOVES INLAND TONIGHT AND INTO SATURDAY, ITS
WIND FIELD WILL EXPAND CONSIDERABLY, WITH STRONG WINDS EXTENDING
WELL EAST OF THE CENTER OF THE STORM INTO WEST-CENTRAL GA. A
TROPICAL STORM WATCH IS IN EFFECT FOR THIS AREA WHERE WIND GUSTS OF
40 TO 50 MPH WILL BE POSSIBLE. FURTHER NORTH/EAST, WHILE ISAIAS WILL
BE WEAKENING AND BECOMING POST-TROPICAL, THERE WILL BE A VERY STRONG
PRESSURE GRADIENT BETWEEN IT AND HIGH PRESSURE OVER THE MID-
ATLANTIC. THIS GRADIENT WILL SUPPORT A PROLONGED PERIOD OF STRONG
EASTERLY WINDS WITH FREQUENT GUSTS TO 40 TO 50 MPH ACROSS MOST OF
NORTH GEORGIA FROM EARLY SATURDAY THROUGH EARLY SUNDAY. A HIGH WIND
WATCH HAS BEEN ISSUED FOR THIS AREA. THE PROLONGED AND STRONG WINDS
COULD LEAD TO NUMEROUS POWER OUTAGES FROM DOWNED LIMBS AND TREES,
ESPECIALLY WHEN COMBINED WITH SATURATED SOILS FROM PERIODS OF HEAVY
RAIN.
HEAVY RAINFALL: AS ISAIAS MOVES NORTHWARD THROUGH
MISSISSIPPI/ALABAMA, IT WILL BRING WIDESPREAD RAINFALL AND MULTIPLE
BANDS OF HEAVY RAIN ACROSS THE AREA TONIGHT THROUGH SUNDAY. RAINFALL
TOTALS OF 1 TO 3 INCHES ARE LIKELY ACROSS MUCH OF THE AREA, WITH
LOCALIZED AMOUNTS UP TO 5 INCHES POSSIBLE. HIGH RAINFALL RATES (PWAT
VALUES OF 2-2.3") AND REPEATED ROUNDS OF HEAVY RAIN COULD LEAD TO
LOCALIZED FLASH FLOODING, PARTICULARLY IN URBAN AND POOR-DRAINGE
AREAS, AS WELL AS FLOOD-PRONE CREEKS AND STREAMS. A FLOOD WATCH HAS
BEEN ISSUED FOR THE ENTIRE AREA.
TORNADOES: AS ISAIAS TRACKS NORTHWARD AND INLAND ON SATURDAY, A
FAVORABLE ENVIRONMENT FOR TORNADOES WILL DEVELOP ACROSS NORTH AND
CENTRAL GEORGIA, POTENTIALLY LINGERING INTO SUNDAY MORNING. SEVERAL
TORNADOES WILL BE POSSIBLE DURING THIS PERIOD, INCLUDING THE
OVERNIGHT HOURS SATURDAY NIGHT. TORNADOES FROM TROPICAL SYSTEMS ARE
TYPICALLY QUICK TO DEVELOP AND SHORT-LIVED, BUT WITH THE FORWARD
SPEED OF THE SYSTEM AND THE UNIQUE SETUP, WE CAN'T RULE OUT A
STRONGER (EF2 OR EF3), LONG-TRACK TORNADO. IT IS IMPERATIVE THAT
EVERYONE HAS A WAY TO RECEIVE TORNADO WARNINGS.
LONG TERM
(SATURDAY NIGHT THROUGH THURSDAY)
ISSUED AT 511 AM EDT FRI OCT 9 2026
WARM AND DRY IN THE WAKE OF ISAIAS: ON THE BACKSIDE OF WHAT REMAINS
OF ISAIAS, A MID-LEVEL RIDGE WILL BUILD OVER THE SOUTHEAST,
PROMOTING A WARM AND DRY AIRMASS. RAIN CHANCES WILL DROP TO NEAR
ZERO FOR MONDAY THROUGH THURSDAY, WITH LOW TEMPERATURES IN THE UPPER
50S TO LOWER 60S, AND HIGH TEMPERATURES IN THE LOWER TO MID 80S.
LONG TERM
(SATURDAY NIGHT THROUGH THURSDAY)
ISSUED AT 511 AM EDT FRI OCT 9 2026
WARM AND DRY IN THE WAKE OF ISAIAS: ON THE BACKSIDE OF WHAT REMAINS
OF ISAIAS, A MID-LEVEL RIDGE WILL BUILD OVER THE SOUTHEAST,
PROMOTING A WARM AND DRY AIRMASS. RAIN CHANCES WILL DROP TO NEAR
ZERO FOR MONDAY THROUGH THURSDAY, WITH LOW TEMPERATURES IN THE UPPER
50S TO LOWER 60S, AND HIGH TEMPERATURES IN THE LOWER TO MID 80S.
AVIATION
(18Z TAFS)
ISSUED AT 140 PM EDT FRI OCT 9 2026
AFTER STARTING THE PERIOD WITH OVC VFR, CONDITIONS WILL RAPIDLY
DETERIORATE TONIGHT AS HURRICANE ISAIAS BEGINS TO IMPACT THE AREA.
WIDESPREAD MVFR/IFR (AND POTENTIALLY IFR) CIGS, RAIN, AND TSRA
CHANCES WILL SPREAD NORTH ACROSS THE AREA OVERNIGHT INTO SATURDAY
MORNING, AND LINGER THROUGH MOST OF THE DAY. WINDS WILL INCREASE
TO AROUND 15-20KTS OUT OF THE EAST, WITH FREQUENT GUSTS TO
30-40KTS. STRONG LOW-LEVEL WIND SHEAR WILL ALSO DEVELOP ACROSS
THE AREA TONIGHT THROUGH MID-MORNING SATURDAY.
//ATL CONFIDENCE...18Z UPDATE...
MEDIUM CONFIDENCE IN TIMING OF LOWER CIGS, AND TSRA TIMING/CHANCES.
HIGH FOR OTHER ELEMENTS.
CULVER
PRELIMINARY POINT TEMPS/POPS
ATHENS 75 60 70 65 / 0 90 100 90
ATLANTA 75 61 72 65 / 20 90 90 70
BLAIRSVILLE 74 54 65 58 / 0 90 90 100
CARTERSVILLE 78 59 72 63 / 10 90 90 80
COLUMBUS 75 63 79 64 / 50 100 90 40
GAINESVILLE 74 60 67 64 / 0 90 90 100
MACON 75 63 77 66 / 30 90 100 70
ROME 79 56 72 60 / 10 90 90 90
PEACHTREE CITY 75 59 73 63 / 20 90 100 60
VIDALIA 76 68 81 71 / 30 90 90 70
FFC WATCHES/WARNINGS/ADVISORIES
FLOOD WATCH FROM MIDNIGHT EDT TONIGHT THROUGH SUNDAY MORNING FOR
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113.
HIGH WIND WARNING FROM MIDNIGHT TONIGHT TO 8 AM EDT SUNDAY FOR
GAZ001>009-011>016-019>025-027-030>037-041>048-053>057.
WIND ADVISORY FROM MIDNIGHT TONIGHT TO 11 PM EDT SATURDAY FOR
GAZ038-039-049>051-058>062-070>076-081>085-094>097-105>109.
TROPICAL STORM WARNING FOR GAZ052-066>069-078>080-089>093-
102>104.
SHORT TERM...VAUGHN
LONG TERM....MARTIN
AVIATION...CULVER
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