Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 49, NWS Charleston, SC

May 4, 2017Long County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at May 4, 2017, 3:31 PM EDT for Long County, Georgia. It was in force for 44 min. 1 report 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: May 4, 2017, 3:31 PM EDT (19:31 UTC)
Expired: May 4, 2017, 4:15 PM EDT
In force: 44 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

County Long County, GA

The radar

The Jacksonville radar (KJAX), 130 km from the middle of the area, began a volume at 19:34 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
May 4, 3:47 PM EDT	TSTM WND DMG	1 W Ludowici, GA	TREE DOWN ON POWER LINES NEAR HUDDLE HOUSE ON US HWY 84

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.5 hours before the alert went out and 128 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1390 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

205 
WUUS52 KCHS 041931
SVRCHS
GAC183-042015-
/O.NEW.KCHS.SV.W.0049.170504T1931Z-170504T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
331 PM EDT THU MAY 4 2017

The National Weather Service in Charleston has issued a

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

* Until 415 PM EDT

* At 331 PM EDT, a severe thunderstorm was located over Jesup, moving
  northeast at 25 mph.

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

  SOURCE...Radar indicated. 

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and powerlines. 

* Locations impacted include...
  Ludowici and Walthourville. 

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.

&&

LAT...LON 3161 8174 3160 8174 3161 8175 3161 8177
      3162 8177 3163 8179 3166 8180 3165 8182
      3166 8183 3167 8185 3172 8188 3186 8175
      3170 8155 3159 8171
TIME...MOT...LOC 1931Z 226DEG 23KT 3158 8186 

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

JRL

1 follow-up statement

431 
WWUS52 KCHS 041948
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
348 PM EDT THU MAY 4 2017

GAC183-042015-
/O.CON.KCHS.SV.W.0049.000000T0000Z-170504T2015Z/
Long GA-
348 PM EDT THU MAY 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR LONG COUNTY...

At 347 PM EDT, a severe thunderstorm was located over Ludowici,
moving northeast at 30 mph.

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

SOURCE...Radar indicated. 

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and powerlines. 

Locations impacted include...
Ludowici and Walthourville. 

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.

&&

LAT...LON 3161 8174 3160 8174 3161 8175 3161 8177
      3162 8177 3163 8179 3166 8180 3165 8182
      3166 8183 3167 8185 3170 8185 3186 8175
      3170 8155 3159 8171
TIME...MOT...LOC 1947Z 224DEG 26KT 3170 8174 

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

JRL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 3:59 PM EDT	Severe Thunderstorm Warning	CHS	Long, McIntosh	46 min
May 4, 4:35 PM EDT	Special Weather Statement	CHS	Effingham	25 min
May 4, 4:41 PM EDT	Special Weather Statement	CHS	Liberty	34 min
May 4, 4:46 PM EDT	Severe Thunderstorm Warning	CHS	Effingham	44 min
May 4, 5:20 PM EDT	Special Weather Statement	CHS	Chatham	25 min
May 4, 6:33 PM EDT	Special Weather Statement	CHS	Long	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.