Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 19, NWS Atlanta, GA

January 5, 2007Twiggs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 5, 2007, 3:23 PM EST for Twiggs County, Georgia. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jan 5, 2007, 3:23 PM EST (20:23 UTC)
Expired: Jan 5, 2007, 3:45 PM EST
In force: 22 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 10 km from the middle of the area, began a volume at 20:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 5, 8:21 AM EST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 135 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 120 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KFFC 052023
SVRFFC
GAC289-052045-
/O.NEW.KFFC.SV.W.0019.070105T2023Z-070105T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
323 PM EST FRI JAN 5 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TWIGGS COUNTY IN CENTRAL GEORGIA

* UNTIL 345 PM EST

* AT 323 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60   
  MPH. THIS STORM WAS LOCATED ABOUT 7 MILES SOUTH OF JEFFERSONVILLE  
  AND MOVING NORTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  DANVILLE AND MYRICKS MILL.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3253 8345 3249 8342 3258 8324 3282 8338

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jan 5, 2:25 PM EST, 58 minutes earlier.

Area forecast discussion, Jan 5, 2:25 PM EST, 58 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
225 PM EST FRI JAN 5 2007

.SHORT TERM...(TONIGHT THROUGH SUNDAY)
MAIN THUNDERSTORM LINE SHOULD EXIT AREA LATE THIS AFTERNOON OR EARLY
EVENING. RAIN POTENTIAL ALREADY ENDING ACROSS THE FAR W COUNTIES AND
THIS WILL CONTINUE THIS AFTERNOON AND EVENING FOR THE FORECAST AREA.
THERE ARE SOME LIGHT SHOWERS OVER AL THAT ARE ASSOCIATED WITH THE
UPPER TROUGH THAT COULD AFFECT NW GA. SATURDAY SHOULD BE DRY BUT
MOISTURE WILL BE RETURNING LATE ON SW FLOW ALOFT. RAIN CHANCES WILL
INCREASE SATURDAY NIGHT AND CONTINUE SUNDAY AS WEAK SURFACE LOW
PRESSURE MOVES OUT OF THE GULF OF MEXICO TO THE S APPALACHIANS LATE
SUNDAY...RIDING ALONG A FRONT DRAPED ACROSS THE AREA.

.LONG TERM...(MONDAY THROUGH FRIDAY)
NOT MUCH TIME TO LOOK AT THE LONG TERM TODAY. RAIN CHANCES WILL
HAVE ENDED TO START MONDAY AS A COLD FRONT EXITS THE AREA EARLY.
THIS PERIOD LOOKS DRY BUT WILL NEED TO WATCH FOR THE PASSAGE OF A
SHORT WAVE THAT WILL SKIRT N GA LATE MONDAY AND EARLY TUESDAY. THE
BULK OF THE MOISTURE WILL BE N OF THE AREA. TEMPERATURES WILL BE
CLOSER TO NORMAL THIS PERIOD THAN THE PAST FEW DAYS.

&&

.HYDROLOGY...
HEAVY RAIN POTENTIAL FOR SUNDAY ACROSS PARTS OF N GA. REFER TO THE
FLOOD POTENTIAL OUTLOOK(ESF) FOR MORE DETAILS.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          49  71  52  58  44 /  40   0  30 100  80
ATLANTA         50  68  55  65  43 /  10   5  40 100  70
BLAIRSVILLE     50  64  47  58  38 /  30   0  20  90  70
CARTERSVILLE    45  67  50  61  40 /  10   0  30 100  70
COLUMBUS        52  71  57  69  46 /   5   5  60  90  70
GAINESVILLE     50  66  51  59  43 /  30   0  20 100  80
MACON           53  71  56  68  48 /  20   5  50 100  80
ROME            47  70  51  64  42 /  10   0  20  90  60
PEACHTREE CITY  46  67  53  64  42 /  10   5  50 100  80
VIDALIA         57  75  61  71  52 /  50   5  30  70  60

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

BDL

Hazardous weather outlook, Jan 5, 1:20 PM EST, 2 hours 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
120 PM EST FRI JAN 5 2007

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-061115-
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-
120 PM EST FRI JAN 5 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH MIDNIGHT ACROSS
PARTS OF EASTERN AND CENTRAL GEORGIA...MAINLY SOUTH AND EAST OF A
ELBERTON TO MILLEDGEVILLE TO AMERICUS LINE.

.SYNOPSIS...
A STRONG UPPER LEVEL SYSTEM WILL CONTINUE TO APPROACH GEORGIA FROM
THE WEST...WHILE A SURFACE LOW PRESSURE AREA WAS LOCATED IN SOUTHERN
INDIANA. A COLD FRONT WAS LOCATED OVER WESTERN ALABAMA. A LINE OF
THUNDERSTORMS LOCATED ACROSS EASTERN AND CENTRAL GEORGIA WAS ALSO
MOVING EAST ACROSS THE STATE.

.PRIMARY HAZARDS...
THE PRIMARY HAZARD WOULD BE DAMAGING WINDS. ISOLATED TORNADOES WILL
ALSO BE POSSIBLE ACROSS CENTRAL GEORGIA...EAST OF A MILLEDGEVILLE TO
AMERICUS LINE.

.DISCUSSION...
VERY WARM MOIST AIR REMAINS ACROSS MUCH OF NORTH AND CENTRAL GEORGIA
THIS AFTERNOON. SURFACE BASED CAPE VALUES ARE AROUND 1000 ACROSS
CENTRAL GEORGIA. INSTABILITY IS FORECAST TO INCREASE A LITTLE MORE
THIS AFTERNOON WITH MAXIMUM CAPE VALUES NEAR 1500 POSSIBLE. VERTICAL
WIND SHEAR...WHILE NOT AS STRONG AS WITH PREVIOUS SYSTEMS...IS STILL
VERY STRONG ACROSS THE AREA AND EXPECTED TO REMAIN STRONG THROUGH
TONIGHT. THIS COMBINATION OF INSTABILITY AND VERTICAL WIND SHEAR
WILL ALLOW FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS TODAY WITH
STRONG DAMAGING WINDS THE PRIMARY THREAT. THE VERTICAL WIND SHEAR
WILL ALSO BE SUFFICIENT FOR ISOLATED TORNADOES TO DEVELOP.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
THERE IS A CHANCE OF THUNDERSTORMS ON SUNDAY AFTERNOON AND EVENING.
OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS REQUESTED EAST OF A MILLEDGEVILLE TO AMERICUS
LINE THROUGH MIDNIGHT.

SNELSON

In the hours before

Local storm report, Jan 5, 2:04 PM EST, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
204 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     TSTM WND DMG     4 SE STOCKBRIDGE        33.50N 84.19W
01/05/2007                   HENRY              GA   NWS EMPLOYEE

            NUMEROUS TREES DOWN ON BOTH SIDES OF I-75. TREE TOPS
            KNOCKED OFF.

&&

SNELSON

Local storm report, Jan 5, 2:06 PM EST, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
206 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1120 AM     TSTM WND DMG     1 W WOOLSEY             33.36N 84.43W
01/05/2007                   FAYETTE            GA   NWS EMPLOYEE

            FEW TREES DOWN IN A LOCALIZED AREA NEAR ANTIOCH AND GOZA
            ROADS.

&&

SNELSON

Local storm report, Jan 5, 2:23 PM EST, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
223 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1250 PM     TSTM WND DMG     HOMER                   34.33N 83.50W
01/05/2007                   BANKS              GA   EMERGENCY MNGR

            WIDESPREAD TREES DOWN. PART OF ROOF AND PORCH BLOWN OFF.
            TREE DOWN ON MOBILE HOME.

&&

SNELSON

Local storm report, Jan 5, 2:31 PM EST, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
231 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     TSTM WND DMG     LA GRANGE               33.04N 85.03W
01/05/2007                   TROUP              GA   LAW ENFORCEMENT

            ROOF AND ALL BUT ONE WALL KNOCKED DOWN FROM A BUISINESS.
            TREE FELL DOWN ON TRAILER ON KELLY ST.

&&

SNELSON

Local storm report, Jan 5, 2:43 PM EST, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
243 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1235 PM     TSTM WND DMG     WATKINSVILLE            33.86N 83.41W
01/05/2007                   OCONEE             GA   LAW ENFORCEMENT

            SEVERAL TREES DOWN. LARGE TREE DOWNED ACROSS HIGHWAY 53.
            TREEN BLOWN ONTO VEHICLE ON HIGHWAY 78.

1245 PM     TSTM WND DMG     BOGART                  33.95N 83.53W
01/05/2007                   OCONEE             GA   LAW ENFORCEMENT

            SIGN BLOWN ONTO VEHICLE.

&&

SNELSON

Local storm report, Jan 5, 2:46 PM EST, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
246 PM EST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1250 PM     TSTM WND DMG     ATHENS                  33.96N 83.39W
01/05/2007                   CLARKE             GA   LAW ENFORCEMENT

            SEVERAL TREES AND POWER LINES DOWN.

&&

SNELSON

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 5, 8:19 AM EST	Severe Thunderstorm Warning	FFC	Haralson, Polk	26 min
Jan 5, 8:36 AM EST	Severe Thunderstorm Warning	FFC	Floyd	54 min
Jan 5, 9:19 AM EST	Severe Thunderstorm Warning	FFC	Heard, Troup	41 min
Jan 5, 9:52 AM EST	Severe Thunderstorm Warning	FFC	Carroll, Coweta	23 min
Jan 5, 10:00 AM EST	Tornado Warning	FFC	Coweta	45 min
Jan 5, 10:13 AM EST	Tornado Warning	FFC	Fulton	47 min
Jan 5, 10:27 AM EST	Tornado Warning	FFC	Meriwether	33 min
Jan 5, 10:36 AM EST	Tornado Warning	FFC	Douglas	24 min
Jan 5, 10:43 AM EST	Severe Thunderstorm Warning	FFC	Coweta, Fayette	32 min
Jan 5, 10:55 AM EST	Tornado Warning	FFC	Coweta, Fayette	24 min
Jan 5, 10:59 AM EST	Severe Thunderstorm Warning	FFC	Clayton, Fulton	46 min
Jan 5, 11:08 AM EST	Tornado Warning	FFC	Clayton, Henry	37 min
Jan 5, 11:22 AM EST	Severe Thunderstorm Warning	FFC	Spalding	23 min
Jan 5, 11:35 AM EST	Severe Thunderstorm Warning	FFC	Newton, Rockdale	40 min
Jan 5, 11:35 AM EST	Severe Thunderstorm Warning	FFC	Butts	25 min
Jan 5, 11:49 AM EST	Severe Thunderstorm Warning	FFC	Jasper	41 min
Jan 5, 11:57 AM EST	Severe Thunderstorm Warning	FFC	Walton	33 min
Jan 5, 12:12 PM EST	Severe Thunderstorm Warning	FFC	Morgan	33 min
Jan 5, 12:22 PM EST	Severe Thunderstorm Warning	FFC	Clarke, Oconee	38 min
Jan 5, 12:31 PM EST	Severe Thunderstorm Warning	FFC	Banks, Hall, Jackson, White	37 min
Jan 5, 1:09 PM EST	Severe Thunderstorm Warning	FFC	Oglethorpe	36 min
Jan 5, 1:59 PM EST	Severe Thunderstorm Warning	FFC	Houston, Pulaski	31 min
Jan 5, 2:11 PM EST	Tornado Warning	FFC	Houston, Pulaski	18 min
Jan 5, 2:21 PM EST	Tornado Warning	FFC	Bleckley, Twiggs	39 min
Jan 5, 2:40 PM EST	Severe Thunderstorm Warning	FFC	Wilkinson	50 min
Jan 5, 2:48 PM EST	Severe Thunderstorm Warning	FFC	Laurens	43 min
Jan 5, 4:14 PM EST	Severe Thunderstorm Warning	FFC	Telfair	31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.