Alert archive / Georgia / Tornado Watches in 2020

Tornado Watch 117

April 13, 202015 counties in Florida; 60 counties in Georgia; 26 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Apr 13, 2020, 3:20 AM EDT for 15 counties in Florida; 60 counties in Georgia; 26 counties in South Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Apr 13, 2020, 3:20 AM EDT (07:20 UTC)
Expired: Apr 13, 2020, 11:00 AM EDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1 in
Strongest gust expected: 60 kt

All 101 counties

Baker County, FL, Columbia County, FL, Duval County, FL, Franklin County, FL, Gadsden County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Burke County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Dodge County, GA, Echols County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Liberty County, GA, Lincoln County, GA, Long County, GA, Lowndes County, GA, McDuffie County, GA, McIntosh County, GA, Montgomery County, GA, Pierce County, GA, Pulaski County, GA, Richmond County, GA, Screven County, GA, Tattnall County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Hampton County, SC, Jasper 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 Charleston,SC radar (KCLX), 58 km from the middle of the area, began a volume at 07:22 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: 60%
One or more EF2 to EF5 tornadoes: 30%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Apr 13, 3:35 AM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Johnson, Laurens, Twiggs, Washington and 1 more	40 min
Apr 13, 3:37 AM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Crisp, Dodge, Dooly, Laurens, Pulaski and 2 more	53 min
Apr 13, 3:50 AM EDT	Severe Thunderstorm Warning	FFC	Glascock, Greene, Hancock, Taliaferro, Warren, Wilkes	40 min
Apr 13, 4:03 AM EDT	Tornado Warning Tornado observed	FFC	Johnson, Washington, Wilkinson	27 min
Apr 13, 4:05 AM EDT	Tornado Warning	FFC	Glascock, Hancock, Warren, Washington	25 min
Apr 13, 4:09 AM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln, McDuffie	51 min
Apr 13, 4:09 AM EDT	Tornado Warning Tornado observed	FFC	Glascock, Hancock, Warren, Washington	23 min
Apr 13, 4:10 AM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Jefferson, Johnson, Laurens, Washington	80 min
Apr 13, 4:17 AM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dodge, Laurens, Montgomery, Pulaski, Telfair and 3 more	73 min
Apr 13, 4:20 AM EDT	Severe Thunderstorm Warning	CAE	Burke, Richmond	40 min
Apr 13, 4:21 AM EDT	Severe Thunderstorm Warning	TAE	Lee, Turner, Worth	84 min
Apr 13, 4:23 AM EDT	Tornado Warning	CAE	Columbia, Lincoln, McDuffie	37 min
Apr 13, 4:23 AM EDT	Tornado Warning Tornado observed	FFC	Jefferson, Washington	16 min
Apr 13, 4:24 AM EDT	Tornado Warning	TAE	Lee, Worth	36 min
Apr 13, 4:29 AM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln	46 min
Apr 13, 4:41 AM EDT	Tornado Warning	CAE	Burke, Richmond	34 min
Apr 13, 4:41 AM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Newberry, Saluda	49 min
Apr 13, 4:44 AM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Jenkins, Screven	61 min
Apr 13, 4:46 AM EDT	Tornado Warning	FFC	Crisp, Wilcox	29 min
Apr 13, 4:58 AM EDT	Severe Thunderstorm Warning	CAE	Burke, Richmond	47 min
Apr 13, 4:58 AM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs, Wheeler	77 min
Apr 13, 5:04 AM EDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gadsden, Gulf, Jackson, Liberty and 1 more	56 min
Apr 13, 5:06 AM EDT	Severe Thunderstorm Warning	CAE	Aiken, Edgefield, Lexington, Newberry, Saluda	39 min
Apr 13, 5:08 AM EDT	Tornado Warning	TAE	Mitchell, Worth	33 min
Apr 13, 5:14 AM EDT	Tornado Warning	CAE	Burke	31 min
Apr 13, 5:14 AM EDT	Tornado Warning	FFC	Dodge, Telfair, Wilcox	31 min
Apr 13, 5:16 AM EDT	Severe Thunderstorm Warning	TAE	Colquitt, Mitchell	74 min
Apr 13, 5:16 AM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	29 min
Apr 13, 5:21 AM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Berrien, Cook, Irwin, Tift	84 min
Apr 13, 5:30 AM EDT	Tornado Warning	TAE	Tift	31 min
Apr 13, 5:31 AM EDT	Severe Thunderstorm Warning	JAX	Coffee, Jeff Davis	59 min
Apr 13, 5:33 AM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Screven and 1 more	57 min
Apr 13, 5:34 AM EDT	Severe Thunderstorm Warning	CAE	Aiken, Calhoun, Fairfield, Lexington, Newberry, Richland	41 min
Apr 13, 5:36 AM EDT	Severe Thunderstorm Warning	FFC	Telfair	39 min
Apr 13, 5:37 AM EDT	Tornado Warning Tornado observedConsiderable damage threat	CAE	Aiken, Bamberg, Barnwell, Orangeburg	23 min
Apr 13, 5:43 AM EDT	Tornado Warning	CAE	Bamberg, Barnwell, Orangeburg	32 min
Apr 13, 5:50 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Coffee	55 min
Apr 13, 5:52 AM EDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 3 more	53 min
Apr 13, 5:52 AM EDT	Tornado Warning	TAE	Berrien, Irwin	38 min
Apr 13, 5:54 AM EDT	Tornado Warning	CHS	Screven	36 min
Apr 13, 5:55 AM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	35 min
Apr 13, 5:56 AM EDT	Tornado Warning Tornado observedConsiderable damage threat	CAE	Aiken, Bamberg, Barnwell, Calhoun, Lexington, Orangeburg	34 min
Apr 13, 6:02 AM EDT	Severe Thunderstorm Warning	CAE	Aiken, Lexington, Orangeburg	28 min
Apr 13, 6:02 AM EDT	Tornado Warning	CHS	Allendale	14 min
Apr 13, 6:04 AM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Fairfield, Kershaw, Lexington, Richland, Sumter	41 min
Apr 13, 6:09 AM EDT	Tornado Warning	CAE	Bamberg, Barnwell, Orangeburg	36 min
Apr 13, 6:13 AM EDT	Tornado Warning	CAE	Bamberg, Calhoun, Orangeburg	32 min
Apr 13, 6:14 AM EDT	Severe Thunderstorm Warning	FFC	Toombs	31 min
Apr 13, 6:18 AM EDT	Tornado Warning Tornado observed	CHS	Colleton, Hampton	27 min
Apr 13, 6:20 AM EDT	Tornado Warning	JAX	Atkinson, Coffee	29 min
Apr 13, 6:22 AM EDT	Severe Thunderstorm Warning	CHS	Effingham	53 min
Apr 13, 6:22 AM EDT	Tornado Warning Tornado observedConsiderable damage threat	CAE	Calhoun, Clarendon, Orangeburg, Richland, Sumter	23 min
Apr 13, 6:23 AM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster	52 min
Apr 13, 6:27 AM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Colquitt, Cook, Grady, Lanier and 2 more	93 min
Apr 13, 6:29 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Candler, Effingham, Evans, Liberty and 2 more	61 min
Apr 13, 6:33 AM EDT	Tornado Warning	JAX	Bacon, Coffee, Jeff Davis	23 min
Apr 13, 6:35 AM EDT	Severe Thunderstorm Warning	TAE	Franklin, Gadsden, Gulf, Jefferson, Leon, Liberty and 1 more	55 min
Apr 13, 6:35 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis, Pierce and 2 more	55 min
Apr 13, 6:35 AM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Clarendon, Orangeburg, Sumter	40 min
Apr 13, 6:38 AM EDT	Tornado Warning EmergencyTornado observed	CHS	Colleton, Hampton	37 min
Apr 13, 6:39 AM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Kershaw, Lee, Richland, Sumter	31 min
Apr 13, 6:46 AM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	29 min
Apr 13, 6:53 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Berkeley, Charleston, Colleton, Dorchester	52 min
Apr 13, 6:55 AM EDT	Tornado Warning	JAX	Appling, Bacon	26 min
Apr 13, 6:58 AM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Lee, Sumter	32 min
Apr 13, 7:01 AM EDT	Tornado Warning Tornado observedConsiderable damage threat	CHS	Colleton, Dorchester	29 min
Apr 13, 7:08 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	67 min
Apr 13, 7:09 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Glynn, Pierce, Ware and 1 more	66 min
Apr 13, 7:14 AM EDT	Tornado Warning	JAX	Appling, Wayne	35 min
Apr 13, 7:15 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, Long, McIntosh, Tattnall	60 min
Apr 13, 7:20 AM EDT	Severe Thunderstorm Warning	JAX	Hamilton	55 min
Apr 13, 7:25 AM EDT	Severe Thunderstorm Warning	TAE	Franklin, Gulf, Jefferson, Leon, Liberty, Madison and 2 more	65 min
Apr 13, 7:26 AM EDT	Tornado Warning	CHS	Berkeley, Dorchester	34 min
Apr 13, 7:33 AM EDT	Tornado Warning	CHS	Liberty, Long	27 min
Apr 13, 7:42 AM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Berkeley, Charleston, Colleton, Dorchester	63 min
Apr 13, 7:51 AM EDT	Tornado Warning	TAE	Lanier, Lowndes	24 min
Apr 13, 7:54 AM EDT	Tornado Warning Tornado observed	CHS	Berkeley	18 min
Apr 13, 7:56 AM EDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	49 min
Apr 13, 7:57 AM EDT	Tornado Warning	CHS	Bryan, Liberty, Long	33 min
Apr 13, 8:00 AM EDT	Tornado Warning	CHS	Charleston, Colleton	30 min
Apr 13, 8:12 AM EDT	Severe Thunderstorm Warning	JAX	Hamilton	63 min
Apr 13, 8:13 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, McIntosh	62 min
Apr 13, 8:15 AM EDT	Severe Thunderstorm Warning	JAX	Brantley, Glynn, Wayne	45 min
Apr 13, 8:21 AM EDT	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	24 min
Apr 13, 8:21 AM EDT	Tornado Warning	CHS	Bryan, Chatham	24 min
Apr 13, 8:26 AM EDT	Tornado Warning	CHS	Charleston	34 min
Apr 13, 8:35 AM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	55 min
Apr 13, 8:41 AM EDT	Severe Thunderstorm Warning	TAE	Madison	34 min
Apr 13, 8:42 AM EDT	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	63 min
Apr 13, 8:42 AM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	33 min
Apr 13, 8:44 AM EDT	Severe Thunderstorm Warning	JAX	Brantley, Camden, Charlton, Glynn	47 min
Apr 13, 9:08 AM EDT	Severe Thunderstorm Warning	JAX	Nassau	67 min
Apr 13, 9:13 AM EDT	Severe Thunderstorm Warning	TAE	Lowndes	14 min
Apr 13, 9:15 AM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton, Suwannee	60 min
Apr 13, 9:38 AM EDT	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	37 min
Apr 13, 10:12 AM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton, Suwannee	63 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

Charleston AFB, SC (KCHS), launched 00:00Z, 7.3 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 944 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 494 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 12, 11:28 PM EDT	Mesoscale Discussion	SPC	Escambia, Holmes, Okaloosa, Santa Rosa, Walton	92 min
Apr 12, 11:45 PM EDT	Tornado Watch	SPC	Bay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more	8 hr
Apr 13, 6:17 AM EDT	Mesoscale Discussion	SPC	Hamilton, Jefferson, Leon, Madison	88 min
Apr 13, 4:06 PM EDT	Mesoscale Discussion	SPC	Alachua, Bradford, Clay, Levy, Marion, Putnam and 1 more	84 min
Apr 12, 8:41 PM EDT	Mesoscale Discussion	SPC	Bartow, Catoosa, Cherokee, Dawson, Fannin, Floyd and 13 more	64 min
Apr 12, 8:57 PM EDT	Tornado Watch	SPC	Rabun	6 hr
Apr 12, 11:17 PM EDT	Mesoscale Discussion	SPC	Banks, Barrow, Bartow, Catoosa, Chattooga, Cherokee and 36 more	88 min
Apr 13, 1:51 AM EDT	Tornado Watch	SPC	Elbert, Franklin, Habersham, Hart, Rabun, Stephens	6 hr
Apr 13, 2:39 AM EDT	Mesoscale Discussion	SPC	Baker, Baldwin, Ben Hill, Bleckley, Burke, Calhoun and 37 more	96 min
Apr 13, 4:40 AM EDT	Mesoscale Discussion	SPC	Dillon, Horry, Marion, Marlboro	95 min
Apr 13, 5:01 AM EDT	Tornado Watch	SPC	Darlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more	7 hr

Nearby

Tornado Watches in Georgia, 2020 Tornado Watches in South Carolina, 2020 Tornado Watches in Florida, 2020 Every tornado watch in 2020

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.