Georgia, 2010

Damaging Wind in Georgia, August 7, 2010

August 7, 2010 · NWS FFC · 1 event in 1 county or zone

The weak cold front that had entered north Georgia on the 6th had pushed south into central Georgia. S.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
$2,000
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS FFC wrote it up.

The weak cold front that had entered north Georgia on the 6th had pushed south into central Georgia. Northwest flow aloft continued around a deep upper low anchored in the northeast U.S. However, the most unstable air had been pushed further south, mostly into south Georgia. Just before sunset, outflow from thunderstorms in south Georgia pushed north into the southern portions of central Georgia, causing isolated thunderstorms to develop. One of these briefly became severe in Wilcox county producing damaging downburst winds.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before the first event at Aug 7, 2:49 PM EST, 1 hour 53 minutes earlier.

Area forecast discussion, Aug 7, 2:49 PM EST, 1 hour 53 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
349 PM EDT SAT AUG 7 2010

.SHORT TERM /TONIGHT THROUGH MONDAY NIGHT/...
SURFACE BOUNDARY REMAINS SITUATED ACROSS CENTRAL GEORGIA...AND IS
EXPECTED TO MOVE LITTLE THROUGH THE SHORT TERM. AHEAD OF THE
BOUNDARY...A MOIST UNSTABLE AIRMASS IS STILL PRESENT...AND THE
COMBINATION OF THESE FEATURES IS TRIGGERING CONVECTIVE DEVELOPMENT
THIS AFTERNOON ACROSS SOUTH GA. BEHIND THE FRONT...DRIER AIR HAS
SETTLED INTO NORTH GA...WITH WELCOMED DEWPOINTS IN THE 60S.

MODELS IN GOOD AGREEMENT WITH HIGH PRESSURE BUILDING IN BEHIND THE
FRONTAL BOUNDARY AS ITS ASSOCIATED LOW PRESSURE SYSTEM MOVES
OVER EASTERN CANADA. 00Z ECMWF SEEMED A LITTLE OUT TO LUNCH WITH
A NEW LOW PRESSURE SYSTEM DEVELOPING IN THE SOUTH ATLANTIC BIGHT
IN ASSOCIATION WITH THE SURFACE BOUNDARY. 12Z ECMWF MUCH MORE IN
LINE WITH GFS AND NAM...WITH THE LOW DEVELOPING A LITTLE FURTHER
SOUTH ALONG THE FLORIDA COAST BY LATE SUNDAY. WITH THE BOUNDARY
AND LOW PRESSURE SYSTEM...A TIGHT RH GRADIENT IS EXPECTED...WITH
THE BEST MOISTURE STAYING IN EXTREME SOUTH GA. HAVE OPTED TO
CONTINUE SLIGHT CHANCE POPS IN SOUTH CENTRAL GA...AND THE NE GA
MOUNTAINS THROUGH THE SHORT TERM. PENDING LOCATION AND DEVELOPMENT
OF THE LOW PRESSURE SYSTEM...THESE POPS COULD EASILY BE INCREASED
DOWN THE ROAD.

GFS SEEMS TO BE THE WARMEST IN THE SHORT TERM ON HIGH TEMPERATURES
WITH 850 MB TEMPERATURES 1 TO 2 DEGREES ABOVE THE NAM AND ECMWF. GFS
ALSO SEEMS TO EMBRACE THE LOWER DEWPOINTS ACROSS N GA A LITTLE MORE
THAN THE OTHER MODELS...WITH GUIDANCE APPEARING A LITTLE TOO LOW FOR
SUNDAY AM TEMPS. HAVE TENDED TOWARD A MAV/MET BLEND THROUGH MONDAY
MORNING...LEANING TOWARDS THE MAV. BY MONDAY AFTERNOON GUIDANCE
SEEMS TO BE MORE IN LINE...SO HAVE NOT STRAYED TOO FAR FROM
CONSENSUS.

.LONG TERM /TUESDAY THROUGH SATURDAY/...
THE AFOREMENTIONED CLOSED LOW CENTERS OVER CENTRAL FL BY MON
AM...MOVES OVER THE NE GULF OF MEXICO BY WED AM...AND MOVES OVER
LA/MS BY EARLY THU. MODELS DIFFER A LITTLE MORE IN THE LONG TERM
WITH HANDLING OF THIS LOW ONCE IT MOVES OVER LAND. A FEW MODELS LOOP
THE LOW BACK AROUND TO THE SOUTHEAST...WITH A VORT MAX IMPACTING THE
CWA BY THE END OF THE WEEK. OTHER MODELS ABSORB THE LOW INTO AN
ONCOMING FRONTAL BOUNDARY. WITH SUCH UNCERTAINTY BETWEEN THE
MODELS...HAVE CONTINUED TO SHOW DIURNALLY DRIVEN CONVECTION AND
PERSISTENCE TEMPERATURES THROUGH THE EXTENDED. WE WILL HAVE TO
MONITOR THE LATEST MODELS TO SEE HOW THIS FEATURE PANS OUT.

31

&&

.AVIATION...
TAFS REFLECT THE INFLUX OF DRIER AIR AND LOWER INSTABILITIES.
CHALLENGE WAS THE WIND FIELD WHICH GFS MOS WANTED TO FLIP TO
WESTERLY OVERNIGHT AND THEN BACK TO EASTERLY.  NAM KEEPS IT EASTERLY
THROUGHOUT.  THIS LOOKS MORE REALISTIC...BUT WITH WINDS BELOW 5 KTS
EXPECTED OVERNIGHT...CANNOT DISMISS A SHORT TERM FLOP TO WESTERLY.
NO SIGNIFICANT ISSUES EXPECTED WITH CIGS OVERNIGHT DUE TO DRIER AIR
THAN THIS MORNING.  NEED TO WATCH AREAS THAT GET RAIN IN CENTRAL AND
SOUTHERN GA TODAY...THOUGH...FOR POSSIBLE IFR CONDS ADVECTING INTO
MCN/CSG IN THE MORNING.

//ATL...CONFIDENCE...UPDATED 18Z...
CONFIDENCE LEVEL IS HIGH 18Z-06Z AND MEDIUM THEREAFTER.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          70  96  72  97  72 /  10  10  10  10  10
ATLANTA         73  95  76  95  76 /  10  10  10  10  10
BLAIRSVILLE     62  90  64  91  65 /  10  20  20  20  20
CARTERSVILLE    67  97  70  97  69 /  10  10  10  10  10
COLUMBUS        75  96  75  96  75 /  20  20  20  10  10
GAINESVILLE     72  94  73  95  73 /  10  20  10  10  10
MACON           72  96  74  97  72 /  20  20  20  10  10
ROME            66  97  69  97  70 /  10  10  10  10  10
PEACHTREE CITY  69  94  71  95  69 /  10  10  10  10  10
VIDALIA         75  95  75  95  75 /  30  20  10  20  10

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
HEAT ADVISORY UNTIL 6 PM EDT THIS EVENING FOR THE FOLLOWING
ZONES: BIBB...BLECKLEY...CHATTAHOOCHEE...CRAWFORD...CRISP...
DODGE...DOOLY...EMANUEL...HOUSTON...JEFFERSON...JOHNSON...
LAURENS...MACON...MARION...MONTGOMERY...MUSCOGEE...PEACH...
PULASKI...SCHLEY...STEWART...SUMTER...TAYLOR...TELFAIR...
TOOMBS...TREUTLEN...TWIGGS...WASHINGTON...WEBSTER...WHEELER...
WILCOX...WILKINSON.

&&
Hazardous weather outlook, Aug 7, 10:40 AM EST, 6 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1140 AM EDT SAT AUG 7 2010

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-081030-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
1140 AM EDT SAT AUG 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT
A FEW THUNDERSTORMS POSSIBLE OVER CENTRAL GEORGIA THIS
AFTERNOON AND EVENING.

.SYNOPSIS...
A WEAK TROUGH OF LOW PRESSURE IS SITUATED ACROSS CENTRAL GEORGIA.
HIGH PRESSURE IS PUSHING INTO THE NORTHERN PORTION OF THE STATE FROM
THE NORTH.

.PRIMARY HAZARDS...
A FEW THUNDERSTORMS WITH CLOUD TO GROUND LIGHTNING AND HEAVY
DOWNPOURS OF RAIN ARE POSSIBLE THIS AFTERNOON AND EVENING...MAINLY
ALONG AND SOUTH OF A LINE FROM COLUMBUS TO SWAINSBORO. SOME OF THE
STRONGER STORMS COULD PRODUCE WIND GUSTS UP TO 40 MPH.

.DISCUSSION...
THE AREA OF HIGH PRESSURE OVER THE TENNESSEE VALLEY WILL SLOWLY SINK
SOUTHWARD AND SPREAD DRIER AIR INTO NORTHERN GEORGIA.  THIS WILL
DIMINISH THE CHANCES OF THUNDERSTORMS FOR NORTH GEORGIA...ALTHOUGH
ISOLATED SHOWERS AND WEAK THUNDERSTORMS CANNOT BE RULED OUT FOR THE
HIGHER ELEVATIONS.  A WEAK TROUGH OF LOW PRESSURE WILL BE PUSHED
INTO CENTRAL AND SOUTH GEORGIA...KEEPING HIGHER INSTABILITY ALONG
AND SOUTH OF THE TROUGH.  THE CAPE INSTABILITY VALUES WILL RANGE
BETWEEN 1000 AND 2000 THIS AFTERNOON FOR MAINLY CENTRAL GEORGIA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
MAINLY ISOLATED SHOWERS AND THUNDERSTORMS SUNDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

The radar

The Robins AFB radar (KJGX), 88 km away, was scanning. The volume nearest the first event began at 21:42 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Wilcox

When
August 7, 4:42 PM EST to 4:45 PM EST
Where
Wilcox County, 1 mi N of Owensboro to 1 mi S of Owensboro
Measured
50 kt (58 mph) estimated gust
Property damage
$2,000
Reported by
County Official
Coordinates
31.884, -83.430

The Wilcox County 911 Center reported that at least a dozen trees were down around Owensboro near Georgia Highway 233.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Georgia in 2010Every state in 2010This day in weather historyWarnings in Georgia, August 2010

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 255996.