Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 49, NWS Jacksonville, FL

May 6, 2012Camden County, Charlton County, Georgia; Nassau County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at May 6, 2012, 4:22 PM EDT for Camden County, Charlton County, Georgia; Nassau County, Florida. It was in force for 23 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 6, 2012, 4:22 PM EDT (20:22 UTC)
Expired
May 6, 2012, 4:45 PM EDT
In force
23 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

Counties Nassau County, FL, Camden County, GA, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 53 km from the middle of the area, began a volume at 20:22 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
May 6, 4:30 PM EDTTSTM WND DMG7 N Folkston, GACOUPLE OF TREES DOWN ALONG HWY 301 NORTH OF FOLKSTON. TIME OF EVENT ESTIMATED BY RADAR.

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, 8.4 hours before the alert went out and 52 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 2012-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 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 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939Sfc1 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
844 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1252 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

006 
WUUS52 KJAX 062022
SVRJAX
FLC089-GAC039-049-062045-
/O.NEW.KJAX.SV.W.0049.120506T2022Z-120506T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
422 PM EDT SUN MAY 6 2012

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CHARLTON COUNTY IN SOUTHEAST GEORGIA
  WESTERN CAMDEN COUNTY IN SOUTHEAST GEORGIA
  EXTREME NORTHWESTERN NASSAU COUNTY IN NORTHEAST FLORIDA

* UNTIL 445 PM EDT

* AT 422 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF
  HOMELAND TO 10 MILES NORTHEAST OF FOLKSTON...OR ALONG A LINE
  EXTENDING FROM 8 MILES NORTH OF FOLKSTON TO 9 MILES WEST OF
  WOODBINE...AND MOVING SOUTH AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HOMELAND AND FOLKSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3098 8207 3095 8184 3079 8178 3082 8208
TIME...MOT...LOC 2022Z 347DEG 3KT 3095 8203 3091 8186

$$

TRABERT
2 follow-up statements
387 
WWUS52 KJAX 062036
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
436 PM EDT SUN MAY 6 2012

FLC089-GAC039-049-062045-
/O.CON.KJAX.SV.W.0049.000000T0000Z-120506T2045Z/
CHARLTON GA-CAMDEN GA-NASSAU FL-
436 PM EDT SUN MAY 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR EXTREME NORTHWESTERN NASSAU...WESTERN CAMDEN AND EASTERN CHARLTON
COUNTIES...

AT 436 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTH OF HOMELAND TO
10 MILES NORTHEAST OF FOLKSTON...OR ALONG A LINE EXTENDING FROM 7
MILES NORTH OF FOLKSTON TO 9 MILES SOUTHWEST OF WOODBINE...MOVING
SOUTH AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HOMELAND AND FOLKSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3098 8207 3095 8184 3079 8178 3082 8208
TIME...MOT...LOC 2036Z 347DEG 3KT 3094 8203 3090 8186

$$

TRABERT
346 
WWUS52 KJAX 062042
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
442 PM EDT SUN MAY 6 2012

FLC089-GAC039-049-062052-
/O.EXP.KJAX.SV.W.0049.000000T0000Z-120506T2045Z/
CHARLTON GA-CAMDEN GA-NASSAU FL-
442 PM EDT SUN MAY 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHWESTERN NASSAU...
WESTERN CAMDEN AND EASTERN CHARLTON COUNTIES WILL EXPIRE AT 445 PM
EDT...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

LAT...LON 3098 8207 3095 8184 3079 8178 3082 8208
TIME...MOT...LOC 2042Z 347DEG 3KT 3094 8203 3090 8186

$$

TRABERT

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 2:36 PM EDTSpecial Weather StatementJAXClinch39 min
May 6, 2:44 PM EDTSpecial Weather StatementJAXEchols46 min
May 6, 2:51 PM EDTSevere Thunderstorm WarningJAXCamden39 min
May 6, 2:55 PM EDTSpecial Weather StatementJAXClinch50 min
May 6, 2:57 PM EDTSpecial Weather StatementJAXCharlton48 min
May 6, 3:13 PM EDTSpecial Weather StatementJAXCharlton47 min
May 6, 3:17 PM EDTSevere Thunderstorm WarningJAXClinch, Ware28 min
May 6, 3:20 PM EDTSevere Thunderstorm WarningJAXClinch, Echols40 min
May 6, 3:59 PM EDTSpecial Weather StatementJAXLanier46 min
May 6, 3:59 PM EDTSevere Thunderstorm WarningJAXCamden, Charlton10 min
May 6, 4:03 PM EDTSevere Thunderstorm WarningJAXClinch27 min
May 6, 4:13 PM EDTSpecial Weather StatementJAXCharlton32 min
May 6, 4:32 PM EDTSpecial Weather StatementJAXAtkinson43 min
May 6, 5:05 PM EDTSevere Thunderstorm WarningJAXAtkinson12 min
May 6, 5:29 PM EDTSpecial Weather StatementJAXAtkinson46 min
May 6, 5:42 PM EDTSevere Thunderstorm WarningJAXAtkinson, Coffee33 min
May 6, 6:13 PM EDTSpecial Weather StatementJAXAtkinson32 min
May 6, 7:01 PM EDTSpecial Weather StatementJAXClinch44 min
May 6, 7:04 PM EDTSpecial Weather StatementJAXWayne26 min
May 6, 7:19 PM EDTSpecial Weather StatementJAXBacon26 min
May 6, 7:45 PM EDTSpecial Weather StatementJAXPierce30 min
May 6, 2:25 PM EDTSpecial Weather StatementJAXNassau50 min
May 6, 2:26 PM EDTSpecial Marine WarningJAX64 min
May 6, 3:22 PM EDTSpecial Weather StatementJAXNassau38 min
May 6, 3:30 PM EDTSpecial Weather StatementJAXNassau30 min
May 6, 3:33 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau42 min
May 6, 3:44 PM EDTSpecial Weather StatementJAXBaker46 min
May 6, 4:07 PM EDTSpecial Weather StatementJAXNassau53 min
May 6, 4:19 PM EDTSevere Thunderstorm WarningJAXColumbia26 min
May 6, 4:25 PM EDTSpecial Weather StatementJAXHamilton50 min
May 6, 4:53 PM EDTSpecial Weather StatementJAXDuval37 min
May 6, 5:33 PM EDTSpecial Weather StatementJAXDuval27 min
May 6, 5:36 PM EDTSpecial Weather StatementJAXHamilton24 min
May 6, 6:34 PM EDTSpecial Weather StatementJAXColumbia, Union26 min
May 6, 7:02 PM EDTSpecial Weather StatementJAXColumbia, Union28 min
May 6, 7:35 PM EDTSpecial Weather StatementJAXColumbia40 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012

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.