Alert archive / Georgia / Tornado Warnings in 2017

Tornado Warning 27, NWS Charleston, SC

May 23, 2017Bryan County, Chatham County, Georgia

NWS Charleston, SC issued this tornado warning at May 23, 2017, 9:07 PM EDT for Bryan County, Chatham County, Georgia. It was in force for 38 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
May 23, 2017, 9:07 PM EDT (01:07 UTC)
Expired
May 23, 2017, 9:45 PM EDT
In force
38 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bryan County, GA, Chatham County, GA

The radar

The Charleston,SC radar (KCLX), 85 km from the middle of the area, began a volume at 01:07 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.

The watch it was issued in

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

IssuedProductOfficeLasted
May 23, 2:45 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 1.1 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2017-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2017-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 square meters per square second.1939587897Sfc1 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
72 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

274 
WFUS52 KCHS 240107
TORCHS
GAC029-051-240145-
/O.NEW.KCHS.TO.W.0027.170524T0107Z-170524T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
907 PM EDT TUE MAY 23 2017

The National Weather Service in Charleston has issued a

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

* Until 945 PM EDT
    
* At 907 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 10 miles southeast of Richmond Hill, moving east at 40
  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...
  Savannah, Fort Pulaski National Monument, Wilmington Island,
  Montgomery, Tybee Island, Fort Mcallister, Ossabaw Sound and
  Skidaway Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3181 8122 3189 8124 3205 8085 3199 8081
      3195 8083 3182 8098 3180 8112
TIME...MOT...LOC 0107Z 251DEG 33KT 3186 8115 

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

$$
1 follow-up statement
771 
WWUS52 KCHS 240123
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
923 PM EDT TUE MAY 23 2017

GAC029-240132-
/O.CAN.KCHS.TO.W.0027.000000T0000Z-170524T0145Z/
Bryan GA-
923 PM EDT TUE MAY 23 2017

...THE TORNADO WARNING FOR BRYAN COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area therefore the warning has been cancelled.

LAT...LON 3184 8109 3188 8111 3193 8109 3205 8085
      3204 8085 3200 8081 3195 8083 3185 8094
      3182 8098
TIME...MOT...LOC 0122Z 249DEG 44KT 3188 8101 

$$

GAC051-240145-
/O.CON.KCHS.TO.W.0027.000000T0000Z-170524T0145Z/
Chatham GA-
923 PM EDT TUE MAY 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR CHATHAM
COUNTY...
    
At 922 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Wilmington Island, 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...
Fort Pulaski National Monument, Wilmington Island, Montgomery, Tybee
Island, Ossabaw Sound, Skidaway Island and Wassaw Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3184 8109 3188 8111 3193 8109 3205 8085
      3204 8085 3200 8081 3195 8083 3185 8094
      3182 8098
TIME...MOT...LOC 0122Z 249DEG 44KT 3188 8101 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 8:39 PM EDTSpecial Weather StatementCHSLiberty36 min
May 23, 8:57 PM EDTSpecial Weather StatementCHSChatham33 min
May 23, 9:05 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham40 min
May 24, 5:48 PM EDTSpecial Weather StatementCHSJenkins27 min

Nearby

Tornado Warnings in Georgia, 2017Every tornado warning in 2017Tornadoes in 2017

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.