Alert archive / Georgia / Tornado Warnings in 2017

Tornado Warning 5, NWS Charleston, SC

January 22, 20174 counties in Georgia

NWS Charleston, SC issued this tornado warning at Jan 22, 2017, 4:40 AM EST for 4 counties in Georgia. It was in force for 35 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
Jan 22, 2017, 4:40 AM EST (09:40 UTC)
Expired
Jan 22, 2017, 5:15 AM EST
In force
35 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bryan County, GA, Chatham County, GA, Effingham County, GA, Liberty County, GA

The radar

The Charleston,SC radar (KCLX), 53 km from the middle of the area, began a volume at 09:39 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
Jan 22, 3:20 AM ESTTornado WatchSPC9 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 9.7 hours before the alert went out and 137 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 2017-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -314 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
944 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-314 m²/s²
0-3 km storm-relative helicity
-121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

112 
WFUS52 KCHS 220940
TORCHS
GAC029-051-103-179-221015-
/O.NEW.KCHS.TO.W.0005.170122T0940Z-170122T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
440 AM EST SUN JAN 22 2017

The National Weather Service in Charleston has issued a

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

* Until 515 AM EST
    
* At 440 AM EST, a severe thunderstorm capable of producing a tornado
  was located 8 miles southeast of Pembroke, moving northeast at 55
  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, Pooler, I-16/i-95 Interchange, Lanier, Rincon, Garden
  City, Port Wentworth and Bloomingdale.

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 3235 8119 3226 8114 3224 8116 3223 8114
      3222 8115 3219 8111 3218 8112 3217 8111
      3217 8113 3215 8111 3212 8112 3196 8150
      3212 8160
TIME...MOT...LOC 0940Z 241DEG 49KT 3207 8149 

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

$$
2 follow-up statements
286 
WWUS52 KCHS 220957
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
457 AM EST SUN JAN 22 2017

GAC029-221006-
/O.CAN.KCHS.TO.W.0005.000000T0000Z-170122T1015Z/
Bryan GA-
457 AM EST SUN JAN 22 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.

A tornado watch remains in effect until 1000 AM EST for southeastern
Georgia.

LAT...LON 3205 8137 3211 8139 3211 8140 3222 8142
      3235 8119 3226 8114 3224 8116 3219 8112
      3217 8111 3217 8113 3215 8111 3212 8112
      3203 8134 3204 8138 3196 8150
TIME...MOT...LOC 0956Z 241DEG 49KT 3218 8125 

$$

GAC051-103-179-221015-
/O.CON.KCHS.TO.W.0005.000000T0000Z-170122T1015Z/
Liberty GA-Effingham GA-Chatham GA-
457 AM EST SUN JAN 22 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM EST FOR
LIBERTY...EFFINGHAM AND CHATHAM COUNTIES...
    
At 456 AM EST, a severe thunderstorm capable of producing a tornado
was located near Pooler, moving northeast at 55 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, Pooler, I-16/i-95 Interchange, Rincon, Garden City, Port
Wentworth, Bloomingdale and Savannah Airport.

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!

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

&&

LAT...LON 3205 8137 3211 8139 3211 8140 3222 8142
      3235 8119 3226 8114 3224 8116 3219 8112
      3217 8111 3217 8113 3215 8111 3212 8112
      3203 8134 3204 8138 3196 8150
TIME...MOT...LOC 0956Z 241DEG 49KT 3218 8125 

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

$$
809 
WWUS52 KCHS 221013
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
513 AM EST SUN JAN 22 2017

GAC051-103-179-221023-
/O.EXP.KCHS.TO.W.0005.000000T0000Z-170122T1015Z/
Liberty GA-Effingham GA-Chatham GA-
513 AM EST SUN JAN 22 2017

...THE TORNADO WARNING FOR LIBERTY...EFFINGHAM AND CHATHAM COUNTIES
WILL EXPIRE AT 515 AM EST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 1000 AM EST for southeastern
Georgia.

LAT...LON 3205 8137 3211 8139 3211 8140 3222 8142
      3235 8119 3226 8114 3224 8116 3219 8112
      3217 8111 3217 8113 3215 8111 3212 8112
      3203 8134 3204 8138 3196 8150
TIME...MOT...LOC 1013Z 241DEG 49KT 3225 8111 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 22, 2:39 AM ESTSpecial Weather StatementCHSBulloch, Evans, Tattnall36 min
Jan 22, 3:16 AM ESTSpecial Weather StatementCHSBulloch, Candler, Evans, Tattnall59 min
Jan 22, 5:52 AM ESTRiver Flood WarningCHSTattnall, Toombs11 days
Jan 22, 6:08 AM ESTSpecial Weather StatementCHSBryan, Bulloch, Effingham, Evans, Liberty, Long and 1 more52 min
Jan 22, 6:35 AM ESTSevere Thunderstorm WarningCHSBryan, Bulloch, Chatham, Effingham, Liberty, Long40 min
Jan 22, 8:53 AM ESTAreal Flood AdvisoryCHSChatham52 min
Jan 22, 9:21 AM ESTSpecial Weather StatementCHSMcIntosh24 min
Jan 22, 10:54 AM ESTRiver Flood WarningCHSBryan, Bulloch, Chatham, Effingham16 days
Jan 22, 1:46 PM ESTSpecial Weather StatementCHSMcIntosh29 min
Jan 22, 6:36 PM ESTSevere Thunderstorm WarningCHSLong, McIntosh24 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.