Alert archive / Georgia / Tornado Warnings in 2018

Tornado Warning 2, NWS Jacksonville, FL

April 15, 2018Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this tornado warning at Apr 15, 2018, 2:54 PM EDT for Camden County, Glynn County, Georgia. It was in force for 27 min. 2 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
Apr 15, 2018, 2:54 PM EDT (18:54 UTC)
Expired
Apr 15, 2018, 3:21 PM EDT
In force
27 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 83 km from the middle of the area, began a volume at 18:58 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
Apr 15, 3:00 PM EDTTSTM WND DMGHarrietts Bluff, GACORRECTS PREVIOUS TORNADO REPORT FROM HARRIETTS BLUFF. REPORT OF A TREE DOWN IN BACK YARD. IT HAS BEEN DETERMINED THERE WAS NO TORNADO.
Apr 15, 3:00 PM EDTTORNADOHarrietts Bluff, GAREPORT OF TORNADO NEAR HARRIETTS BLUFF. SEVERAL TREES UPROOTED.

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
Apr 15, 10:12 AM EDTTornado WatchSPC8 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.9 hours before the alert went out and 82 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 2018-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 651 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 2018-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
651 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted.

462 
WFUS52 KJAX 151854
TORJAX
GAC039-127-151930-
/O.NEW.KJAX.TO.W.0002.180415T1854Z-180415T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
254 PM EDT SUN APR 15 2018

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Eastern Camden County in southeastern Georgia...
  Central Glynn County in southeastern Georgia...

* Until 330 PM EDT.
    
* At 253 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Kingsland, moving northeast 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.

* This dangerous storm will be near...
  Jekyll Island around 310 PM EDT.
  Brunswick, Dock Junction, Sea Island and Country Club Estates 
  around 320 PM EDT.
  St. Simons Island around 325 PM EDT.

Other locations impacted by this tornadic thunderstorm include Dover
Bluff, Boys Estate and Harrietts Bluff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3119 8125 3110 8137 3096 8139 3076 8155
      3083 8175 3137 8154 3133 8147 3133 8143
      3131 8144 3128 8139 3129 8139 3128 8138
      3130 8137 3130 8136 3125 8123
TIME...MOT...LOC 1853Z 208DEG 49KT 3086 8161 

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

$$

23
3 follow-up statements
353 
WWUS52 KJAX 151902
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
302 PM EDT SUN APR 15 2018

GAC039-127-151930-
/O.CON.KJAX.TO.W.0002.000000T0000Z-180415T1930Z/
Camden GA-Glynn GA-
302 PM EDT SUN APR 15 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR
NORTHEASTERN CAMDEN AND CENTRAL GLYNN COUNTIES...
    
At 301 PM EDT, a severe thunderstorm capable of producing a tornado
was located 10 miles east of Woodbine, moving northeast 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.

This dangerous storm will be near...
  Jekyll Island around 310 PM EDT.
  Brunswick, Dock Junction, Sea Island and Country Club Estates 
  around 320 PM EDT.
  St. Simons Island around 325 PM EDT.

Other locations impacted by this tornadic thunderstorm include Dover
Bluff, Colesburg and Boys Estate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3119 8125 3110 8137 3096 8139 3084 8149
      3092 8172 3137 8154 3133 8147 3133 8143
      3131 8144 3128 8139 3130 8137 3130 8136
      3125 8123
TIME...MOT...LOC 1901Z 208DEG 49KT 3097 8155 

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

$$

23
477 
WWUS52 KJAX 151912
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
312 PM EDT SUN APR 15 2018

GAC039-127-151930-
/O.CON.KJAX.TO.W.0002.000000T0000Z-180415T1930Z/
Camden GA-Glynn GA-
312 PM EDT SUN APR 15 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR
NORTHEASTERN CAMDEN AND CENTRAL GLYNN COUNTIES...
    
At 312 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Jekyll Island, or near Brunswick, moving northeast
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.

This dangerous storm will be near...
  Jekyll Island around 315 PM EDT.
  Brunswick, Dock Junction, Sea Island and Country Club Estates 
  around 325 PM EDT.
  St. Simons Island around 330 PM EDT.

Other locations impacted by this tornadic thunderstorm include Dover
Bluff and Boys Estate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3119 8125 3110 8137 3096 8139 3093 8145
      3099 8168 3137 8154 3133 8147 3133 8143
      3131 8144 3129 8140 3128 8139 3128 8138
      3130 8137 3130 8136 3125 8123
TIME...MOT...LOC 1912Z 208DEG 42KT 3105 8149 

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

$$

23
834 
WWUS52 KJAX 151921
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
321 PM EDT SUN APR 15 2018

GAC039-127-151929-
/O.CAN.KJAX.TO.W.0002.000000T0000Z-180415T1930Z/
Camden GA-Glynn GA-
321 PM EDT SUN APR 15 2018

...THE TORNADO WARNING FOR NORTHEASTERN CAMDEN AND CENTRAL GLYNN
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened, and no longer 
appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However small hail and
gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 600 PM EDT for southeastern
Georgia.

LAT...LON 3119 8125 3110 8137 3096 8139 3093 8145
      3099 8168 3137 8154 3133 8147 3133 8143
      3131 8144 3129 8140 3128 8139 3128 8138
      3130 8137 3130 8136 3125 8123
TIME...MOT...LOC 1917Z 208DEG 49KT 3114 8143 

$$

23

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 3:24 AM EDTWind AdvisoryJAXAppling, Atkinson, Bacon, Brantley, Camden, Clinch and 6 more13 hr
Apr 15, 9:57 AM EDTSpecial Weather StatementJAXAtkinson, Coffee, Echols63 min
Apr 15, 10:09 AM EDTSevere Thunderstorm WarningJAXClinch, Echols66 min
Apr 15, 10:14 AM EDTSevere Thunderstorm WarningJAXAtkinson, Coffee, Jeff Davis61 min
Apr 15, 11:05 AM EDTSpecial Weather StatementJAXAppling, Bacon, Jeff Davis55 min
Apr 15, 11:13 AM EDTSevere Thunderstorm WarningJAXAtkinson, Bacon, Clinch, Echols, Ware47 min
Apr 15, 11:15 AM EDTSevere Thunderstorm WarningJAXAppling, Atkinson, Bacon, Coffee, Jeff Davis, Ware45 min
Apr 15, 11:56 AM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Jeff Davis, Pierce, Wayne49 min
Apr 15, 12:01 PM EDTSevere Thunderstorm WarningJAXBrantley, Charlton, Clinch, Ware44 min
Apr 15, 12:42 PM EDTSpecial Weather StatementJAXBrantley, Charlton, Wayne63 min
Apr 15, 1:38 PM EDTSpecial Weather StatementJAXBrantley, Charlton52 min
Apr 15, 2:14 PM EDTSpecial Weather StatementJAXCamden46 min
Apr 15, 2:15 PM EDTSevere Thunderstorm WarningJAXBrantley, Glynn, Wayne45 min
Apr 15, 2:23 PM EDTSevere Thunderstorm WarningJAXCamden52 min
Apr 15, 2:34 PM EDTSevere Thunderstorm WarningJAXCamden, Glynn41 min
Apr 15, 3:14 PM EDTSevere Thunderstorm WarningJAXCamden46 min
Apr 15, 3:23 PM EDTSevere Thunderstorm WarningJAXCamden, Glynn52 min

Nearby

Tornado Warnings in Georgia, 2018Every tornado warning in 2018Tornadoes in 2018

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.