Alert archive / Georgia / Tornado Warnings in 2020

Tornado Warning 11, NWS Charleston, SC

April 13, 2020Bryan County, Liberty County, Long County, Georgia

NWS Charleston, SC issued this tornado warning at Apr 13, 2020, 7:57 AM EDT for Bryan County, Liberty County, Long County, Georgia. It was in force for 33 min. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 13, 2020, 7:57 AM EDT (11:57 UTC)
Expired: Apr 13, 2020, 8:30 AM EDT
In force: 33 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Bryan County, GA, Liberty County, GA, Long County, GA

The radar

The Charleston,SC radar (KCLX), 99 km from the middle of the area, began a volume at 11:59 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 was reported inside it

Time	Report	Where	Remark
Apr 13, 8:05 AM EDT	TORNADO	1 N Riceboro, GA	LIBERTY COUNTY EMA REPORTS A TORNADO LIKELY WENT THROUGH THE AREA BETWEEN RICEBORO AND MIDWAY. 12 HOMES RECEIVED MINOR TO MAJOR DAMAGE. THERE WAS ALSO EXTENSIVE DAMAGE TO NUMEROUS TREES OF VARIOUS SIZES. TIME ESTIMATED BASED ON RADAR.
Apr 13, 8:07 AM EDT	TSTM WND DMG	3 E Riceboro, GA	THE PUBLIC REPORTED NUMEROUS TREES DOWN ON BOTH SIDES OF I-95 JUST NORTH OF MILE MARKER 74. POSSIBLE TORNADO. TIME ESIMATED BASED ON RADAR.
Apr 13, 8:07 AM EDT	TSTM WND DMG	3 E Riceboro, GA	THE PUBLIC REPORTED NUMEROUS TREES DOWN ON BOTH SITES OF I-95 JUST NORTH OF MILE MARKER 74. POSSIBLE TORNADO BASED ON RADAR. TIME ESIMATED BASED ON RADAR.
Apr 13, 8:08 AM EDT	TSTM WND DMG	1 Ne Halfmoon Landing, GA	A MEMBER OF THE PUBLIC SHARED A PHOTO OF SEVERAL TREES SCATTERED OVER ROADS ON COLONEL'S ISLAND. TIME IS ESTIMATED BY RADAR. POSSIBLE TORNADO DAMAGE.
Apr 13, 8:11 AM EDT	TORNADO	4 Ene Riceboro, GA	A NATIONAL WEATHER SERVICE STORM DAMAGE SURVEY TEAM HAS CONFIRMED AN EF-1 TORNADO WHICH TRACKED FROM SOUTHERN LIBERTY COUNTY TO SOUTHERN BRYAN COUNTY. THE TORNADO DAMAGED A FEW HOMES AS WELL AS A CHURCH AND MANY TREES ALONG A PATH OF ALMOST 9 MILES. PLEASE SEE
Apr 13, 8:12 AM EDT	TSTM WND DMG	4 W Sunbury, GA	A PICTURE ON SOCIAL MEDIA SHOWED EXTENSIVE TREE DAMAGE NEAR BRIGDON ROAD AND ISLANDS HIGHWAY WEST OF SUNBURY. TORNADO POSSIBLE. TIME ESTIMATED BASED ON RADAR.
Apr 13, 8:12 AM EDT	TSTM WND DMG	5 Ene Riceboro, GA	A HOME IN DORCHESTER VILLAGE WAS HEAVILY DAMAGED. POSSIBLE TORNADO. TIME ESTIMATED BASED ON RADAR.
Apr 13, 8:20 AM EDT	TSTM WND DMG	2 Ne Sunbury, GA	PHOTOS PROVIDED BY THE SOUTH BRYAN FIRE DEPARTMENT SHOWED EXTENSIVE TREE DAMAGE ALONG HIGHWAY 144 NEAR THE DEMERIES CREEK AREA. TORNADO POSSIBLE. TIME ESTIMATED BASED ON RADAR.
Apr 13, 8:21 AM EDT	TSTM WND DMG	1 Wsw Keller, GA	PIER SEVERELY DAMAGED AND BOAT HOUSE DESTROYED OFF DAVIS ROAD. A BOAT THAT WAS HOUSED IN THE BOAT HOUSE WAS CARRIED 20 FEET. SOME PIER PILEINGS WERE SUCKED UP OUT OF THE MUD. TORNADO POSSIBLE. TIME ESTIMATED BASED ON RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 13, 3:20 AM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 12.0 hours before the alert went out and 148 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: 1677 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 10.2

Open this sounding in Storm Lab

The text

As transmitted.

813 
WFUS52 KCHS 131157
TORCHS
GAC029-179-183-131230-
/O.NEW.KCHS.TO.W.0011.200413T1157Z-200413T1230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
757 AM EDT Mon Apr 13 2020

The National Weather Service in Charleston has issued a

* Tornado Warning for portions of...
  Bryan County in southeastern Georgia...
  Liberty County in southeastern Georgia...
  Long County in southeastern Georgia...

* Until 830 AM EDT.
    
* At 757 AM EDT, a severe thunderstorm capable of producing a tornado
  was located near Allenhurst, moving east at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Hinesville, Richmond Hill, McIntosh, Walthourville, Riceboro,
  Flemington, Allenhurst, Belfast, Halfmoon Landing, Retreat, Keller
  and Sunbury.

This warning includes I-95 in Georgia between mile markers 70 and 88.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3163 8165 3178 8169 3195 8129 3192 8126
      3191 8126 3191 8124 3189 8124 3191 8122
      3189 8122 3189 8120 3182 8116 3179 8118
      3179 8116 3171 8116 3174 8111 3172 8110
      3170 8110 3166 8145 3170 8149 3165 8153
TIME...MOT...LOC 1157Z 251DEG 38KT 3173 8157 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

SPR

1 follow-up statement

458 
WWUS52 KCHS 131206
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
806 AM EDT Mon Apr 13 2020

GAC183-131216-
/O.CAN.KCHS.TO.W.0011.000000T0000Z-200413T1230Z/
Long GA-
806 AM EDT Mon Apr 13 2020

...THE TORNADO WARNING FOR LONG COUNTY IS CANCELLED...
    
The immediate risk for tornadoes has ended. 

LAT...LON 3171 8150 3183 8157 3195 8129 3189 8123
      3190 8123 3191 8122 3189 8122 3189 8120
      3182 8116 3179 8118 3179 8116 3176 8118
      3171 8116 3171 8113 3174 8111 3170 8110
      3168 8142
TIME...MOT...LOC 1206Z 256DEG 43KT 3175 8143 

$$

GAC029-179-131230-
/O.CON.KCHS.TO.W.0011.000000T0000Z-200413T1230Z/
Bryan GA-Liberty GA-
806 AM EDT Mon Apr 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 AM EDT FOR BRYAN AND
LIBERTY COUNTIES...
    
At 806 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Riceboro, moving east at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Richmond Hill, McIntosh, Riceboro, Flemington, Belfast, Halfmoon
Landing, Retreat, Keller and Sunbury.

This warning includes I-95 in Georgia between mile markers 71 and 88.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.

&&

LAT...LON 3171 8150 3183 8157 3195 8129 3189 8123
      3190 8123 3191 8122 3189 8122 3189 8120
      3182 8116 3179 8118 3179 8116 3176 8118
      3171 8116 3171 8113 3174 8111 3170 8110
      3168 8142
TIME...MOT...LOC 1206Z 256DEG 43KT 3175 8143 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

SPR

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 13, 4:44 AM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Jenkins, Screven	61 min
Apr 13, 5:33 AM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Screven and 1 more	57 min
Apr 13, 5:54 AM EDT	Tornado Warning	CHS	Screven	36 min
Apr 13, 6:22 AM EDT	Severe Thunderstorm Warning	CHS	Effingham	53 min
Apr 13, 6:29 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Candler, Effingham, Evans, Liberty and 2 more	61 min
Apr 13, 7:15 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, Long, McIntosh, Tattnall	60 min
Apr 13, 7:33 AM EDT	Tornado Warning	CHS	Liberty, Long	27 min
Apr 13, 8:13 AM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, McIntosh	62 min
Apr 13, 8:21 AM EDT	Tornado Warning	CHS	Bryan, Chatham	24 min

Nearby

Tornado Warnings in Georgia, 2020 Every tornado warning in 2020 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.