Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 133, NWS Tallahassee, FL

July 3, 2013Berrien County, Lanier County, Lowndes County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 3, 2013, 6:00 PM EDT for Berrien County, Lanier County, Lowndes County, Georgia. It was in force for 45 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: Jul 3, 2013, 6:00 PM EDT (22:00 UTC)
Expired: Jul 3, 2013, 6:45 PM EDT
In force: 45 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Berrien County, GA, Lanier County, GA, Lowndes County, GA

The radar

The Moody AFB radar (KVAX), 25 km from the middle of the area, began a volume at 21:50 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.0 hours before the alert went out and 129 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: 682 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 3, 5:20 PM EDT, 40 minutes earlier.

Area forecast discussion, Jul 3, 5:20 PM EDT, 40 minutes before

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In the hours before

Local storm report, Jul 3, 2:16 PM EDT, 3 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
216 PM EDT WED JUL 03 2013

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

0200 PM     FLASH FLOOD      1 SSW SANTA ROSA BEACH  30.38N 86.24W
07/03/2013                   WALTON             FL   LAW ENFORCEMENT

            8 TO 10 INCHES OF WATER OVER CHURCH STREET JUST NORTH OF
            US HIGHWAY 98. WATER ALSO REPORTED OVER ABOUT A DOZEN
            OTHER ROADS IN WALTON COUNTY. VIA WALTON ALERT FACEBOOK.

&&

08-LAMERS

Local storm report, Jul 3, 4:26 PM EDT, 1 hour 34 minutes before

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Local storm report, Jul 3, 4:28 PM EDT, 1 hour 32 minutes before

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Local storm report, Jul 3, 4:44 PM EDT, 1 hour 16 minutes before

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Local storm report, Jul 3, 5:29 PM EDT, 31 minutes before

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Local storm report, Jul 3, 5:40 PM EDT, 20 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 11:37 PM EDT	Areal Flood Warning	TAE	Jefferson, Leon, Wakulla	3 hr
Jul 3, 12:14 AM EDT	River Flood Warning	TAE	Wakulla	12 days
Jul 3, 2:48 AM EDT	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	59 hr
Jul 3, 8:43 AM EDT	Special Marine Warning	TAE		62 min
Jul 3, 9:45 AM EDT	Special Marine Warning	TAE		2 hr
Jul 3, 10:01 AM EDT	Small Craft Advisory	TAE		52 hr
Jul 3, 10:55 AM EDT	Flash Flood Warning	TAE	Bay, Holmes, Walton, Washington	8 hr
Jul 3, 11:39 AM EDT	Special Marine Warning	TAE		111 min
Jul 3, 1:00 PM EDT	Special Weather Statement	TAE	Leon, Wakulla	60 min
Jul 3, 2:09 PM EDT	Special Marine Warning	TAE		51 min
Jul 3, 2:10 PM EDT	Special Weather Statement	TAE	Bay	65 min
Jul 3, 3:53 PM EDT	Flash Flood Warning	TAE	Leon	112 min
Jul 3, 4:10 PM EDT	Flash Flood Watch	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	3 days
Jul 3, 5:42 PM EDT	Special Marine Warning	TAE		2 hr
Jul 3, 7:05 PM EDT	Areal Flood Warning	TAE	Bay, Holmes, Walton, Washington	36 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2013 Every severe thunderstorm warning in 2013

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.