Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 116, NWS Jacksonville, FL

July 1, 2007Clinch County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 1, 2007, 4:00 PM EDT for Clinch County, Georgia. It was in force for 60 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 1, 2007, 4:00 PM EDT (20:00 UTC)
Expired: Jul 1, 2007, 5:00 PM EDT
In force: 60 min
Issued by: NWS Jacksonville, FL
Area: Counties, with a storm outline in the text

County Clinch County, GA

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 8.0 hours before the alert went out and 107 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: 2360 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 780 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: -9 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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 3:23 PM EDT, 37 minutes earlier.

Area forecast discussion, Jul 1, 3:23 PM EDT, 37 minutes before

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Hazardous weather outlook, Jul 1, 9:45 AM EDT, 6 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
945 AM EDT SUN JUL 1 2007

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-021100-
HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY-
ST JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE-
JEFF DAVIS-BACON-APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-
INLAND GLYNN-COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-
COASTAL CAMDEN-
945 AM EDT SUN JUL 1 2007

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

.DAY ONE...REST OF TODAY AND TONIGHT...

...SLIGHT RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING...

.THUNDERSTORM IMPACT...THUNDERSTORMS WILL DEVELOP THIS AFTERNOON
OVER THE AREA AS A COLD FRONT TO THE NORTH SLOWLY APPROACHES THE
AREA. ABUNDANT MOISTURE AND A SLOW STORM MOTION WILL RESULT IN
LOCALLY HEAVY RAINFALL. THE STRONGER STORMS WILL ALSO PRODUCE
DAMAGING DOWNBURSTS...HAIL AND FREQUENT LIGHTNING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

DEEP TROPICAL MOISTURE WILL REMAIN IN PLACE THROUGH MIDWEEK. UPPER
LEVEL DISTURBANCES AND A COLD FRONT WILL TRIGGER SCATTERED TO
NUMEROUS THUNDERSTORMS THROUGH WEDNESDAY. THE STRONGEST
THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL AND STRONG
GUSTY WINDS.

THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG THE GEORGIA COAST
ON MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

MKT

In the hours before

Special weather statement, Jul 1, 3:01 PM EDT, 59 minutes before

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Special weather statement, Jul 1, 3:06 PM EDT, 54 minutes before

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Special weather statement, Jul 1, 3:08 PM EDT, 52 minutes before

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Local storm report, Jul 1, 3:27 PM EDT, 33 minutes before

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Local storm report, Jul 1, 3:33 PM EDT, 27 minutes before

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Special weather statement, Jul 1, 3:54 PM EDT, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 1:29 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	46 min
Jul 1, 1:54 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	51 min
Jul 1, 2:32 PM EDT	Severe Thunderstorm Warning	JAX	Duval	47 min
Jul 1, 2:43 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	35 min
Jul 1, 12:50 PM EDT	Severe Thunderstorm Warning	JAX	Charlton	40 min
Jul 1, 2:08 PM EDT	Severe Thunderstorm Warning	JAX	Camden	52 min
Jul 1, 2:35 PM EDT	Severe Thunderstorm Warning	JAX	Ware	40 min
Jul 1, 2:48 PM EDT	Severe Thunderstorm Warning	JAX	Brantley	42 min
Jul 1, 2:53 PM EDT	Severe Thunderstorm Warning	JAX	Ware	67 min
Jul 1, 3:12 PM EDT	Severe Thunderstorm Warning	JAX	Clinch	48 min
Jul 1, 3:35 PM EDT	Severe Thunderstorm Warning	JAX	Bacon, Coffee	40 min
Jul 1, 4:00 PM EDT	Severe Thunderstorm Warning	JAX	Clinch	45 min
Jul 1, 4:03 PM EDT	Severe Thunderstorm Warning	JAX	Ware	42 min
Jul 1, 4:11 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson	49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning in 2007

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.