Alert archive / Georgia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 16, NWS Jacksonville, FL

February 6, 20205 counties in Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 6, 2020, 9:18 PM EST for 5 counties in Georgia. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 6, 2020, 9:18 PM EST (02:18 UTC)
Expired
Feb 6, 2020, 10:00 PM EST
In force
42 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Brantley County, GA, Camden County, GA, Charlton County, GA, Glynn County, GA, Wayne County, GA

The radar

The Jacksonville radar (KJAX), 73 km from the middle of the area, began a volume at 02:22 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 6, 5:30 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 2.3 hours before the alert went out and 72 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 00:00Z on 2020-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 301 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 2020-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 square meters per square second.1939587897117Sfc1 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
301 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1234 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
0.5
Supercell composite
1.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 6, 8:58 PM EST, 20 minutes earlier.

Area forecast discussion, Feb 6, 8:58 PM EST, 20 minutes before
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In the hours before

Local storm report, Feb 6, 8:27 PM EST, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
827 PM EST THU FEB 6 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0735 PM     TSTM WND DMG     3 SE WILLACOOCHEE       31.31N 83.02W
02/06/2020                   Atkinson           GA   911 CALL CENTER

            TRI-COUNTY 911/DISPATCH REPORTS TREES AND POWERLINES DOWN
            THROUGHOUT ATKINSON AND CLINCH COUNTIES.

&&

NELSON
Local storm report, Feb 6, 8:31 PM EST, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
831 PM EST THU FEB 6 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     TSTM WND DMG     4 E STATENVILLE         30.70N 82.96W
02/06/2020                   Echols             GA   911 CALL CENTER

            ECHOLS COUNTY 911/DISPATCH REPORTS TREES AND POWERLINES
            DOWN COUNTY-WIDE.

&&

NELSON
Local storm report, Feb 6, 8:36 PM EST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
836 PM EST THU FEB 6 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0725 PM     TSTM WND DMG     3 SE DENTON             31.69N 82.66W
02/06/2020                   Jeff Davis         GA   911 CALL CENTER

            JEFF DAVIS COUNTY REPORTS WIDESPREAD TREES AND POWERLINES
            DOWN COUNT-WIDE WITH SEVERAL ROADS TEMPORARILY FLOODED.

&&

NELSON
Local storm report, Feb 6, 8:43 PM EST, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
843 PM EST THU FEB 6 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0810 PM     TSTM WND DMG     5 SW ALMA               31.50N 82.54W
02/06/2020                   Bacon              GA   911 CALL CENTER

            BACON COUNTY 911/DISPATCH REPORTS TREES AND POWERLINES
            DOWNED COUNTY-WIDE.

&&

NELSON
Local storm report, Feb 6, 9:07 PM EST, 11 minutes before
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Local storm report, Feb 6, 9:15 PM EST, 3 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 6, 7:04 PM ESTSevere Thunderstorm WarningJAXHamilton, Suwannee56 min
Feb 6, 7:42 PM ESTSevere Thunderstorm WarningJAXBaker, Columbia, Hamilton, Suwannee63 min
Feb 6, 8:00 PM ESTSevere Thunderstorm WarningJAXColumbia, Hamilton, Suwannee45 min
Feb 6, 8:41 PM ESTSevere Thunderstorm WarningJAXAlachua, Baker, Columbia, Gilchrist, Hamilton, Suwannee and 1 more49 min
Feb 6, 8:51 PM ESTTornado WarningJAXBaker, Columbia, Hamilton39 min
Feb 6, 8:55 PM ESTSevere Thunderstorm WarningJAXAlachua, Gilchrist50 min
Feb 6, 9:22 PM ESTSevere Thunderstorm WarningJAXAlachua, Baker, Bradford, Clay, Duval, Gilchrist and 3 more38 min
Feb 6, 9:28 PM ESTSevere Thunderstorm WarningJAXNassau47 min
Feb 6, 9:34 PM ESTSevere Thunderstorm WarningJAXAlachua, Marion41 min
Feb 6, 9:43 PM ESTSpecial Marine WarningJAX2 hr
Feb 6, 9:54 PM ESTSevere Thunderstorm WarningJAXNassau51 min
Feb 6, 9:56 PM ESTSevere Thunderstorm WarningJAXAlachua, Bradford, Clay, Duval, Nassau, Putnam and 1 more49 min
Feb 6, 10:00 PM ESTSpecial Marine WarningJAX2 hr
Feb 6, 10:11 PM ESTSevere Thunderstorm WarningJAXAlachua, Marion, Putnam49 min
Feb 6, 10:42 PM ESTSevere Thunderstorm WarningJAXClay, Duval, Nassau, Putnam, Saint Johns48 min
Feb 6, 10:57 PM ESTSevere Thunderstorm WarningJAXFlagler, Marion, Putnam, Saint Johns63 min
Feb 6, 11:45 PM ESTSpecial Marine WarningJAX30 min
Feb 6, 11:50 PM ESTSpecial Marine WarningJAX115 min
Feb 6, 11:59 PM ESTSevere Thunderstorm WarningJAXFlagler16 min
Feb 7, 3:29 AM ESTWind AdvisoryJAXAlachua, Baker, Bradford, Duval, Flagler, Gilchrist and 4 more10 hr
Feb 7, 1:52 PM ESTFrost AdvisoryJAXAlachua, Baker, Bradford, Gilchrist, Marion, Nassau and 2 more19 hr
Feb 7, 1:53 PM ESTSmall Craft AdvisoryJAX7 hr
Feb 6, 7:09 PM ESTSevere Thunderstorm WarningJAXAppling, Jeff Davis51 min
Feb 6, 7:16 PM ESTSevere Thunderstorm WarningJAXAppling, Bacon, Coffee, Jeff Davis44 min
Feb 6, 7:18 PM ESTSevere Thunderstorm WarningJAXClinch, Echols57 min
Feb 6, 7:34 PM ESTTornado WarningJAXAtkinson, Bacon, Clinch, Coffee, Pierce, Ware26 min
Feb 6, 7:52 PM ESTSevere Thunderstorm WarningJAXAppling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 3 more38 min
Feb 6, 7:58 PM ESTSevere Thunderstorm WarningJAXAppling, Brantley, Charlton, Clinch, Glynn, Pierce and 2 more47 min
Feb 6, 8:29 PM ESTSevere Thunderstorm WarningJAXAppling, Bacon, Pierce, Wayne33 min
Feb 6, 8:45 PM ESTSevere Thunderstorm WarningJAXBrantley, Charlton, Clinch, Echols, Pierce, Ware45 min
Feb 6, 9:07 PM ESTSevere Thunderstorm WarningJAXBrantley, Glynn, Pierce, Wayne38 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2020Every severe thunderstorm warning 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.