Alert archive / Georgia / Tornado Warnings in 2020

Tornado Warning 39, NWS Jacksonville, FL

August 9, 2020Glynn County, Georgia

NWS Jacksonville, FL issued this tornado warning at Aug 9, 2020, 6:27 PM EDT for Glynn County, Georgia. It was in force for 9 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: Aug 9, 2020, 6:27 PM EDT (22:27 UTC)
Expired: Aug 9, 2020, 6:36 PM EDT
In force: 9 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Glynn County, GA

The radar

The Jacksonville radar (KJAX), 95 km from the middle of the area, began a volume at 22:28 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 10.5 hours before the alert went out and 93 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: 1280 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 929 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

785 
WFUS52 KJAX 092227
TORJAX
GAC127-092315-
/O.NEW.KJAX.TO.W.0039.200809T2227Z-200809T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
627 PM EDT Sun Aug 9 2020

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Northeastern Glynn County in southeastern Georgia...

* Until 715 PM EDT.
    
* At 626 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Everett, or 7 miles west of Darien, moving
  southeast at 5 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 tornadic thunderstorm will remain over mainly rural areas of
  northeastern Glynn County, including the following locations...
  Boys Estate.

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 3117 8127 3132 8159 3138 8155
      3138 8154 3133 8147 3134 8147 3133 8145
      3133 8144 3131 8144 3128 8139 3129 8139
      3128 8138 3130 8137 3131 8134 3128 8132
      3128 8124 3127 8122
TIME...MOT...LOC 2226Z 294DEG 5KT 3133 8155 

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

$$

ENYEDI

1 follow-up statement

865 
WWUS52 KJAX 092236
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
636 PM EDT Sun Aug 9 2020

GAC127-092246-
/O.CAN.KJAX.TO.W.0039.000000T0000Z-200809T2315Z/
Glynn GA-
636 PM EDT Sun Aug 9 2020

...THE TORNADO WARNING FOR NORTHEASTERN GLYNN COUNTY IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.  However
small hail and gusty winds are still possible with this thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect.

LAT...LON 3119 8125 3117 8127 3132 8159 3138 8155
      3138 8154 3133 8147 3134 8147 3133 8145
      3133 8144 3131 8144 3128 8139 3129 8139
      3128 8138 3130 8137 3131 8134 3128 8132
      3128 8124 3127 8122
TIME...MOT...LOC 2235Z 294DEG 5KT 3132 8153 

$$

ENYEDI

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 8:10 PM EDT	Special Weather Statement	JAX	Charlton	50 min
Aug 9, 3:25 PM EDT	Special Weather Statement	JAX	Coffee	35 min
Aug 9, 3:55 PM EDT	Special Weather Statement	JAX	Appling, Atkinson, Bacon, Coffee	50 min
Aug 9, 4:37 PM EDT	Special Weather Statement	JAX	Appling, Jeff Davis, Wayne	68 min
Aug 9, 5:01 PM EDT	Special Weather Statement	JAX	Brantley, Pierce	44 min
Aug 9, 5:42 PM EDT	Special Weather Statement	JAX	Brantley, Wayne	63 min
Aug 9, 6:08 PM EDT	Special Weather Statement	JAX	Glynn	37 min
Aug 9, 6:15 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	45 min
Aug 9, 6:39 PM EDT	Special Weather Statement	JAX	Glynn	51 min
Aug 9, 6:46 PM EDT	Special Weather Statement	JAX	Ware	44 min
Aug 9, 6:56 PM EDT	Special Weather Statement	JAX	Brantley	49 min
Aug 9, 7:13 PM EDT	Severe Thunderstorm Warning	JAX	Charlton	47 min
Aug 9, 7:29 PM EDT	Special Weather Statement	JAX	Charlton	31 min
Aug 9, 7:58 PM EDT	Special Weather Statement	JAX	Camden	32 min

Nearby

Tornado Warnings in Georgia, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.