Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Jacksonville, FL

April 19, 2015Clinch County, Ware County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 19, 2015, 2:11 PM EDT for Clinch County, Ware County, Georgia. It was in force for 34 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
Apr 19, 2015, 2:11 PM EDT (18:11 UTC)
Expired
Apr 19, 2015, 2:45 PM EDT
In force
34 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

Counties Clinch County, GA, Ware County, GA

The radar

The Moody AFB radar (KVAX), 42 km from the middle of the area, began a volume at 18:12 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
Apr 19, 1:04 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.2 hours before the alert went out and 113 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 2015-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1051 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 2015-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
1051 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

083 
WUUS52 KJAX 191811
SVRJAX
GAC065-299-191845-
/O.NEW.KJAX.SV.W.0021.150419T1811Z-150419T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
211 PM EDT SUN APR 19 2015

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN WARE COUNTY IN SOUTHEASTERN GEORGIA...
  NORTHEASTERN CLINCH COUNTY IN SOUTHEASTERN GEORGIA...

* UNTIL 245 PM EDT

* AT 211 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED NEAR ARGYLE...AND MOVING
  NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HOMERVILLE...ARGYLE...COGDELL...MANOR AND WARESBORO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. ALTHOUGH A TORNADO IS
NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

INTENSE THUNDERSTORM LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES
AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR SOUTHEASTERN
GEORGIA.

LAT...LON 3118 8278 3118 8267 3122 8269 3134 8247
      3101 8241 3088 8242 3087 8278 3115 8284
TIME...MOT...LOC 1811Z 237DEG 23KT 3113 8264 

$$

SANDRIK
2 follow-up statements
547 
WWUS52 KJAX 191820
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
220 PM EDT SUN APR 19 2015

GAC065-299-191845-
/O.CON.KJAX.SV.W.0021.000000T0000Z-150419T1845Z/
WARE GA-CLINCH GA-
220 PM EDT SUN APR 19 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR NORTHWESTERN WARE AND NORTHEASTERN CLINCH COUNTIES...

AT 220 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED NEAR MANOR...OR 7 MILES NORTHEAST OF
ARGYLE...MOVING NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
HOMERVILLE...ARGYLE...COGDELL...MANOR AND WARESBORO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.

INTENSE THUNDERSTORM LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES
AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR SOUTHEASTERN
GEORGIA.

LAT...LON 3118 8278 3118 8267 3122 8269 3134 8247
      3101 8241 3088 8242 3095 8275
TIME...MOT...LOC 1820Z 237DEG 23KT 3116 8258 

$$

SANDRIK
942 
WWUS52 KJAX 191833
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
233 PM EDT SUN APR 19 2015

GAC065-191843-
/O.CAN.KJAX.SV.W.0021.000000T0000Z-150419T1845Z/
CLINCH GA-
233 PM EDT SUN APR 19 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLINCH COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3134 8247 3101 8241 3108 8261 3123 8268
TIME...MOT...LOC 1833Z 237DEG 23KT 3120 8254 

$$

GAC299-191845-
/O.CON.KJAX.SV.W.0021.000000T0000Z-150419T1845Z/
WARE GA-
233 PM EDT SUN APR 19 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR NORTHWESTERN WARE COUNTY...

AT 233 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED 7 MILES NORTH OF MANOR...OR 10 MILES
NORTHEAST OF ARGYLE. THIS STORM WAS NEARLY STATIONARY.

LOCATIONS IMPACTED INCLUDE...
MANOR AND WARESBORO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.

INTENSE THUNDERSTORM LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES
AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR SOUTHEASTERN
GEORGIA.

LAT...LON 3134 8247 3101 8241 3108 8261 3123 8268
TIME...MOT...LOC 1833Z 237DEG 23KT 3120 8254 

$$

SANDRIK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 8:13 PM EDTSevere Thunderstorm WarningJAXGlynn, Wayne17 min
Apr 19, 1:27 PM EDTSpecial Weather StatementJAXCharlton, Pierce, Ware48 min
Apr 19, 1:58 PM EDTSpecial Weather StatementJAXAppling, Bacon, Coffee, Jeff Davis47 min
Apr 19, 2:01 PM EDTSpecial Weather StatementJAXClinch29 min
Apr 19, 2:19 PM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Coffee, Jeff Davis26 min
Apr 19, 2:25 PM EDTSpecial Weather StatementJAXEchols65 min
Apr 19, 2:25 PM EDTTornado WarningJAXClinch, Ware35 min
Apr 19, 2:52 PM EDTSevere Thunderstorm WarningJAXAppling, Brantley, Pierce, Wayne23 min
Apr 19, 3:02 PM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Pierce, Wayne28 min
Apr 19, 3:06 PM EDTSpecial Weather StatementJAXAtkinson, Clinch, Echols39 min
Apr 19, 3:22 PM EDTAreal Flood AdvisoryJAXAppling113 min
Apr 19, 3:34 PM EDTSevere Thunderstorm WarningJAXGlynn, Wayne26 min
Apr 19, 3:48 PM EDTSpecial Weather StatementJAXClinch, Echols, Ware42 min
Apr 19, 3:51 PM EDTSpecial Weather StatementJAXWayne39 min
Apr 19, 4:00 PM EDTSevere Thunderstorm WarningJAXCharlton, Clinch, Echols, Ware30 min
Apr 19, 4:06 PM EDTSpecial Weather StatementJAXPierce39 min
Apr 19, 4:12 PM EDTSpecial Weather StatementJAXWayne48 min
Apr 19, 4:18 PM EDTSpecial Weather StatementJAXCharlton42 min
Apr 19, 4:24 PM EDTSpecial Weather StatementJAXWare51 min
Apr 19, 4:26 PM EDTSpecial Weather StatementJAXGlynn19 min
Apr 19, 4:55 PM EDTSevere Thunderstorm WarningJAXBrantley, Camden, Charlton, Glynn, Ware35 min
Apr 19, 5:29 PM EDTSpecial Weather StatementJAXGlynn31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015Every severe thunderstorm warning in 2015

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.