Alert archive / Georgia / Tornado Warnings in 2017

Tornado Warning 2, NWS Charleston, SC

January 21, 2017Long County, Tattnall County, Georgia

NWS Charleston, SC issued this tornado warning at Jan 21, 2017, 2:44 PM EST for Long County, Tattnall County, Georgia. It was in force for 31 min. 3 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
Jan 21, 2017, 2:44 PM EST (19:44 UTC)
Expired
Jan 21, 2017, 3:15 PM EST
In force
31 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Long County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 116 km from the middle of the area, began a volume at 19:48 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

TimeReportWhereRemark
Jan 21, 2:50 PM ESTTORNADO8 Sw Mendes, GAA NATIONAL WEATHER SERVICE SURVEY TEAM CONFIRMED AN EF-0 TORNADO IN SOUTHERN TATTNALL COUNTY. THE TORNADO TOUCHED DOWN JUST NORTH OF STATE ROUTE 178 NEAR THE RUSHING BOONE ROAD INTERSECTION. THE TORNADO TRAVELLED TOWARD THE EAST SOUTHEAST AND BLEW METAL ROOFIN
Jan 21, 2:55 PM ESTTSTM WND DMG9 Sw Mendes, GASOCIAL MEDIA VIDEOS SHOW MULTIPLE NON-RESIDENTIAL STRUCTURES DESTROYED AND LARGE HAIL...ESTIMATED AT GOLF BALL SIZE IN THE COMMUNITY OF COWFORD. SURVEY TEAM IS ASSESSING POSSIBILITY THAT DAMAGE MAY HAVE BEEN FROM A TORNADO
Jan 21, 2:55 PM ESTHAIL 1.759 Sw Mendes, GASOCIAL MEDIA VIDEOS SHOW MULTIPLE NON-RESIDENTIAL STRUCTURES DESTROYED AND LARGE HAIL...ESTIMATED AT GOLF BALL SIZE IN THE COMMUNITY OF COWFORD. SURVEY TEAM IS ASSESSING POSSIBILITY THAT DAMAGE MAY HAVE BEEN FROM A TORNADO

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.

IssuedProductOfficeLasted
Jan 21, 1:51 PM ESTTornado WatchSPC4 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.7 hours before the alert went out and 164 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, Jacksonville, FL at 12:00Z on 2017-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 322 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, Jacksonville, FL at 12:00Z on 2017-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
322 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

629 
WFUS52 KCHS 211944
TORCHS
GAC183-267-212015-
/O.NEW.KCHS.TO.W.0002.170121T1944Z-170121T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
244 PM EST SAT JAN 21 2017

The National Weather Service in Charleston has issued a

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

* Until 315 PM EST
    
* At 243 PM EST, a severe thunderstorm capable of producing a tornado
  was located 12 miles northeast of Surrency, moving northeast at 45
  mph.

  HAZARD...Tornado and quarter size hail. 

  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...
  Glennville and Mendes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3209 8198 3205 8189 3205 8177 3204 8177
      3201 8182 3198 8180 3197 8174 3186 8176
      3182 8203 3187 8211 3189 8212 3189 8213
      3191 8213 3190 8219 3193 8223
TIME...MOT...LOC 1943Z 244DEG 39KT 3189 8211 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
1 follow-up statement
033 
WWUS52 KCHS 212002
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
302 PM EST SAT JAN 21 2017

GAC183-267-212015-
/O.CON.KCHS.TO.W.0002.000000T0000Z-170121T2015Z/
Long GA-Tattnall GA-
302 PM EST SAT JAN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EST FOR LONG AND
TATTNALL COUNTIES...
    
At 302 PM EST, a severe thunderstorm capable of producing a tornado
was located 14 miles southeast of Reidsville, 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...
Glennville and Mendes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3205 8196 3205 8177 3204 8177 3201 8182
      3198 8180 3197 8174 3186 8176 3186 8198
      3192 8204 3197 8203
TIME...MOT...LOC 2002Z 248DEG 36KT 3193 8195 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 2:13 PM ESTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Jenkins, Screven, Tattnall62 min
Jan 21, 2:21 PM ESTTornado WarningCHSJenkins, Screven24 min
Jan 21, 2:58 PM ESTTornado WarningCHSScreven32 min
Jan 21, 3:06 PM ESTSevere Thunderstorm WarningCHSBryan, Bulloch, Effingham, Evans, Liberty, Long and 2 more54 min
Jan 21, 3:38 PM ESTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty67 min
Jan 21, 4:00 PM ESTSpecial Weather StatementCHSMcIntosh30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.