Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 166, NWS Tallahassee, FL

May 20, 2017Berrien County, Cook County, Lanier County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at May 20, 2017, 8:13 PM EDT for Berrien County, Cook County, Lanier County, Georgia. It was in force for 32 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 20, 2017, 8:13 PM EDT (00:13 UTC)
Expired
May 20, 2017, 8:45 PM EDT
In force
32 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Berrien County, GA, Cook County, GA, Lanier County, GA

The radar

The Moody AFB radar (KVAX), 33 km from the middle of the area, began a volume at 00:15 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 20, 8:14 PM EDTTSTM WND DMG2 E Ray City, GADAMAGE TO PRIVACY FENCES AT 2 DIFFERENT PROPERTIES. LARGE TRAMPOLINE BLOWN AWAY AND CAN NOT BE FOUND. SIGN DOWN.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.2 hours before the alert went out and 135 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, Tallahassee Rgnl, FL at 00:00Z on 2017-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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, Tallahassee Rgnl, FL at 00:00Z on 2017-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
48 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
1610 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

294 
WUUS52 KTAE 210013
SVRTAE
GAC019-075-173-210045-
/O.NEW.KTAE.SV.W.0166.170521T0013Z-170521T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
813 PM EDT SAT MAY 20 2017

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  East central Cook County in south central Georgia...
  Central Berrien County in south central Georgia...
  Northwestern Lanier County in south central Georgia...

* Until 845 PM EDT

* At 813 PM EDT, a severe thunderstorm was located over Ray City, or
  near Lakeland, moving northwest at 25 mph.

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

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Nashville, Ray City, Meigs, Cottle, Berrien Co A/P, Massee,
  Allenville, Weber and Teeterville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3105 8307 3103 8318 3124 8345 3135 8316
TIME...MOT...LOC 0013Z 154DEG 20KT 3106 8318 

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

09-FOURNIER

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 9:15 PM EDTSevere Thunderstorm WarningTAEBerrien, Irwin, Tift, Turner30 min
May 21, 2:37 AM EDTSpecial Weather StatementTAEEarly, Miller53 min
May 21, 3:14 AM EDTSpecial Weather StatementTAESeminole46 min
May 21, 3:53 AM EDTSpecial Weather StatementTAEDecatur, Miller, Mitchell, Seminole52 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Every 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.