Alert archive / Georgia / Tornado Watches in 2013

Tornado Watch 23

January 30, 201317 counties in Florida; 77 counties in Georgia; 19 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Jan 30, 2013, 4:45 PM CST for 17 counties in Florida; 77 counties in Georgia; 19 counties in South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 30, 2013, 4:45 PM CST (22:45 UTC)
Expired
Jan 30, 2013, 10:47 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
65 kt
All 113 counties

Calhoun County, FL, Columbia County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist County, FL, Gulf County, FL, Hamilton County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brooks County, GA, Bulloch County, GA, Burke County, GA, Calhoun County, GA, Candler County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Grady County, GA, Greene County, GA, Hancock County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lincoln County, GA, Lowndes County, GA, Macon County, GA, McDuffie County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Oglethorpe County, GA, Peach County, GA, Pierce County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Screven County, GA, Seminole County, GA, Sumter County, GA, Taliaferro County, GA, Tattnall County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Worth County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC

The radar

The Robins AFB radar (KJGX), 81 km from the middle of the area, began a volume at 22:46 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
50%
One or more EF2 to EF5 tornadoes
30%
Ten or more severe wind reports
95%
One or more gusts of 65 knots or more
40%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

37 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 30, 4:48 PM CSTTornado WarningTAECalhoun, Gulf, Liberty27 min
Jan 30, 4:53 PM CSTSevere Thunderstorm WarningTAEBaker, Calhoun, Colquitt, Dougherty, Lee, Miller and 5 more67 min
Jan 30, 4:54 PM CSTTornado WarningTAEGadsden, Jackson36 min
Jan 30, 4:59 PM CSTSevere Thunderstorm WarningCAEColumbia, Lincoln, McDuffie61 min
Jan 30, 5:06 PM CSTTornado WarningTAEDougherty, Lee, Terrell, Worth24 min
Jan 30, 5:09 PM CSTTornado WarningTAEBaker, Colquitt, Dougherty, Mitchell, Worth36 min
Jan 30, 5:13 PM CSTSevere Thunderstorm WarningTAEFranklin, Gadsden, Leon, Liberty, Wakulla62 min
Jan 30, 5:15 PM CSTSevere Thunderstorm WarningFFCBaldwin, Glascock, Hancock, Warren, Washington, Wilkinson45 min
Jan 30, 5:15 PM CSTTornado WarningTAEBaker, Colquitt, Mitchell30 min
Jan 30, 5:33 PM CSTTornado WarningTAELee, Tift, Turner, Worth27 min
Jan 30, 5:49 PM CSTSevere Thunderstorm WarningFFCBleckley, Crisp, Dodge, Dooly, Jefferson, Johnson and 7 more41 min
Jan 30, 5:51 PM CSTSevere Thunderstorm WarningTAEBen Hill, Berrien, Colquitt, Cook, Irwin, Lanier and 4 more54 min
Jan 30, 5:53 PM CSTSevere Thunderstorm WarningCAEBurke, Columbia, Lincoln, McDuffie, Richmond52 min
Jan 30, 5:54 PM CSTSevere Thunderstorm WarningFFCGlascock, Hancock, Jefferson, Warren, Washington51 min
Jan 30, 6:09 PM CSTSevere Thunderstorm WarningTAEJefferson, Leon, Madison, Taylor, Wakulla66 min
Jan 30, 6:17 PM CSTSevere Thunderstorm WarningCAEFairfield, Newberry, Saluda43 min
Jan 30, 6:20 PM CSTSevere Thunderstorm WarningFFCDodge, Emanuel, Jefferson, Johnson, Laurens, Montgomery and 6 more55 min
Jan 30, 6:39 PM CSTSevere Thunderstorm WarningJAXAppling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 1 more36 min
Jan 30, 6:41 PM CSTSevere Thunderstorm WarningCAEBurke, Columbia, Richmond64 min
Jan 30, 6:42 PM CSTSevere Thunderstorm WarningTAEBen Hill, Berrien, Cook, Irwin, Lanier48 min
Jan 30, 6:58 PM CSTSevere Thunderstorm WarningCAEFairfield, Lexington, Newberry, Saluda32 min
Jan 30, 7:02 PM CSTSevere Thunderstorm WarningCHSBulloch, Candler, Jenkins, Screven, Tattnall58 min
Jan 30, 7:10 PM CSTSevere Thunderstorm WarningTAEMadison50 min
Jan 30, 7:12 PM CSTSevere Thunderstorm WarningFFCEmanuel, Montgomery, Toombs33 min
Jan 30, 7:14 PM CSTSevere Thunderstorm WarningJAXAppling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 1 more46 min
Jan 30, 7:24 PM CSTSevere Thunderstorm WarningCAEBurke66 min
Jan 30, 7:26 PM CSTSevere Thunderstorm WarningCAEAiken, Fairfield, Lancaster, Lexington, Newberry, Richland and 1 more64 min
Jan 30, 7:29 PM CSTSevere Thunderstorm WarningJAXHamilton46 min
Jan 30, 7:47 PM CSTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Jenkins, Long, Screven and 1 more58 min
Jan 30, 7:52 PM CSTSevere Thunderstorm WarningJAXAppling, Bacon, Brantley, Charlton, Clinch, Pierce and 2 more38 min
Jan 30, 7:54 PM CSTSevere Thunderstorm WarningJAXSuwannee51 min
Jan 30, 8:06 PM CSTSevere Thunderstorm WarningCAEBamberg, Barnwell, Calhoun, Lexington, Orangeburg, Richland and 1 more54 min
Jan 30, 8:07 PM CSTSevere Thunderstorm WarningJAXCharlton, Clinch, Echols, Ware38 min
Jan 30, 8:09 PM CSTSevere Thunderstorm WarningCAEChesterfield, Fairfield, Kershaw, Lancaster, Lee, Richland and 1 more66 min
Jan 30, 8:15 PM CSTSevere Thunderstorm WarningCHSBryan, Bulloch, Chatham, Effingham, Evans, Liberty and 4 more60 min
Jan 30, 8:26 PM CSTSevere Thunderstorm WarningJAXBrantley, Camden, Glynn, Wayne79 min
Jan 30, 8:55 PM CSTSevere Thunderstorm WarningCAECalhoun, Clarendon, Lee, Orangeburg, Sumter65 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.8 hours before the alert went out and 199 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2013-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 220 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2013-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 343 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
220 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
487 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
343 m²/s²
0-3 km storm-relative helicity
420 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

494 
WWUS20 KWNS 302251
SEL3  
SPC WW 302251
FLZ000-GAZ000-SCZ000-CWZ000-310600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 23
NWS STORM PREDICTION CENTER NORMAN OK
550 PM EST WED JAN 30 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND EASTERN FLORIDA PANHANDLE AND NORTH FLORIDA
       CENTRAL AND EASTERN GEORGIA
       PIEDMONT SOUTH CAROLINA
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 550
PM UNTIL 100 AM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH NORTHEAST OF
COLUMBIA SOUTH CAROLINA TO 45 MILES SOUTH SOUTHWEST OF
TALLAHASSEE FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 21...WW 22...

DISCUSSION...PRE-FRONTAL...GA/CNTRL FL PANHANDLE SQLN EXPECTED TO
FURTHER CONSOLIDATE AND ACCELERATE ENE ACROSS PARTS OF THE SE U.S.
CSTL PLNS THROUGH LATE TNGT. THIS ACCELERATION/CONSOLIDATION IS
EXPECTED TO OCCUR IN RESPONSE TO THE NE EJECTION OF SHORTWAVE TROUGH
NOW OVER MS/W TN...PER WV IMAGERY...AND MAY BE REFLECTED IN RECENT
DEEPENING/STRENGTHENING OF SFC-BASED WLY FLOW ON EGLIN AFB PROFILER
/WRN FL PANHANDLE/. STRENGTH OF WIND FIELD AND PRESENCE OF
SUFFICIENT MOISTURE/BUOYANCY FOR SUSTAINED STORMS SUGGEST POTENTIAL
FOR EMBEDDED SUPERCELLS/LEWPS...WITH AN ATTENDANT RISK FOR
TORNADOES/DMGG WIND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 22055.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 30, 4:31 PM CSTMesoscale DiscussionSPCGadsden, Jefferson, Leon, Liberty, Madison, Wakulla59 min
Jan 30, 4:51 AM CSTTornado WatchSPCBartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 8 more7 hr
Jan 30, 6:38 AM CSTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 7 more97 min
Jan 30, 7:11 AM CSTTornado WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 81 more7 hr
Jan 30, 10:09 AM CSTMesoscale DiscussionSPCBartow, Carroll, Cherokee, Clayton, Cobb, Coweta and 18 more96 min
Jan 30, 11:50 AM CSTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Bibb, Butts and 63 more85 min
Jan 30, 12:19 PM CSTTornado WatchSPCBaker, Baldwin, Banks, Barrow, Bartow, Bibb and 91 more9 hr
Jan 30, 3:13 PM CSTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Colquitt, Columbia, Crisp and 32 more2 hr

Nearby

Tornado Watches in Georgia, 2013Tornado Watches in South Carolina, 2013Tornado Watches in Florida, 2013Every tornado watch in 2013

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.