Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 9, NWS Charleston, SC

January 22, 2017Long County, McIntosh County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jan 22, 2017, 6:36 PM EST for Long County, McIntosh County, Georgia. It was in force for 24 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, 6:36 PM EST (23:36 UTC)
Expired
Jan 22, 2017, 7:00 PM EST
In force
24 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Long County, GA, McIntosh County, GA

The radar

The Jacksonville radar (KJAX), 116 km from the middle of the area, began a volume at 23:35 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, 4:25 PM ESTTornado Watch PDSSPC3 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.6 hours before the alert went out and 114 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 2017-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 765 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 2017-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 376 square meters per square second.1939587897117Sfc1 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
765 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
376 m²/s²
0-3 km storm-relative helicity
336 m²/s²
Significant tornado parameter
1.8
Supercell composite
8.3

Open this sounding in Storm Lab

The text

As transmitted.

894 
WUUS52 KCHS 222336
SVRCHS
GAC183-191-230000-
/O.NEW.KCHS.SV.W.0009.170122T2336Z-170123T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
636 PM EST SUN JAN 22 2017

The National Weather Service in Charleston has issued a

* Severe Thunderstorm Warning for portions of...
  McIntosh County in southeastern Georgia...
  Long County in southeastern Georgia...

* Until 700 PM EST

* At 635 PM EST, a severe thunderstorm was located near Tibet, moving
  northeast at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Tibet, Jones, Townsend, Crescent, Eulonia, Pine Harbor and Cox. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

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

LAT...LON 3143 8161 3145 8162 3147 8161 3150 8165
      3152 8166 3152 8167 3154 8166 3155 8170
      3158 8170 3161 8174 3160 8174 3162 8175
      3171 8155 3155 8132 3136 8153
TIME...MOT...LOC 2335Z 240DEG 49KT 3153 8166 

HAIL...1.00IN
WIND...60MPH
 
$$

MTE
2 follow-up statements
904 
WWUS52 KCHS 222344
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
644 PM EST SUN JAN 22 2017

GAC183-191-230000-
/O.CON.KCHS.SV.W.0009.000000T0000Z-170123T0000Z/
McIntosh GA-Long GA-
644 PM EST SUN JAN 22 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EST
FOR MCINTOSH AND LONG COUNTIES...

At 643 PM EST, a severe thunderstorm was located near Tibet, moving
northeast at 50 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Tibet, Jones, Eulonia, Townsend and Cox. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

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

LAT...LON 3145 8162 3147 8161 3150 8165 3152 8166
      3152 8167 3154 8166 3155 8170 3158 8170
      3160 8173 3171 8155 3157 8135 3143 8161
TIME...MOT...LOC 2343Z 241DEG 44KT 3156 8158 

HAIL...<.75IN
WIND...60MPH
 
$$

MTE
854 
WWUS52 KCHS 222354
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
654 PM EST SUN JAN 22 2017

GAC183-191-230004-
/O.EXP.KCHS.SV.W.0009.000000T0000Z-170123T0000Z/
McIntosh GA-Long GA-
654 PM EST SUN JAN 22 2017

...THE SEVERE THUNDERSTORM WARNING FOR MCINTOSH AND LONG COUNTIES
WILL EXPIRE AT 700 PM EST...
        
The storm which prompted the warning has weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire.

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

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Charleston.

LAT...LON 3145 8162 3147 8161 3150 8165 3152 8166
      3152 8167 3154 8166 3155 8170 3158 8170
      3160 8173 3171 8155 3157 8135 3143 8161
TIME...MOT...LOC 2354Z 240DEG 49KT 3163 8145 

$$

MTE

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, 4:40 AM ESTTornado WarningCHSBryan, Chatham, Effingham, Liberty35 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

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning 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.