Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 201, NWS Jacksonville, FL

July 5, 2015Nassau County, Florida; Camden County, Charlton County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 5, 2015, 3:43 PM EDT for Nassau County, Florida; Camden County, Charlton County, Georgia. It was in force for 47 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 5, 2015, 3:43 PM EDT (19:43 UTC)
Expired: Jul 5, 2015, 4:30 PM EDT
In force: 47 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Nassau County, FL, Camden County, GA, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 35 km from the middle of the area, began a volume at 19:44 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, 7.7 hours before the alert went out and 33 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: 632 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 38 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 5, 3:12 PM EDT, 31 minutes earlier.

Area forecast discussion, Jul 5, 3:12 PM EDT, 31 minutes before

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Hazardous weather outlook, Jul 5, 3:26 PM EDT, 17 minutes before

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In the hours before

Special weather statement, Jul 5, 2:49 PM EDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
249 PM EDT SUN JUL 5 2015

GAZ150-162>164-051930-
CLINCH GA-CHARLTON GA-ECHOLS GA-WARE GA-
249 PM EDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ECHOLS...CENTRAL
WARE...SOUTHEASTERN CLINCH AND NORTHWESTERN CHARLTON COUNTIES UNTIL
330 PM EDT...

AT 248 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORMS
CENTERED 10 MILES NORTH OF NEEDMORE...OR 11 MILES NORTHWEST OF
FARGO...MOVING NORTHEAST AT 25 MPH.

EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH
CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

LOCATIONS IMPACTED INCLUDE...
FARGO...NEEDMORE AND BOGGY BAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3088 8279 3121 8235 3060 8237 3060 8276
      3061 8281
TIME...MOT...LOC 1848Z 240DEG 49KT 3083 8265

ZIBURA

Special weather statement, Jul 5, 3:08 PM EDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
308 PM EDT SUN JUL 5 2015

FLZ023-GAZ150>152-164-051945-
BAKER FL-BRANTLEY GA-PIERCE GA-CHARLTON GA-WARE GA-
308 PM EDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BAKER...SOUTHWESTERN
BRANTLEY...SOUTHEASTERN PIERCE...SOUTHEASTERN WARE AND CHARLTON
COUNTIES UNTIL 345 PM EDT...

AT 308 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORMS
CENTERED 12 MILES NORTH OF TAYLOR...OR 14 MILES SOUTH OF STEPHEN
FOSTER STATE PARK...MOVING NORTHEAST AT 30 MPH.

GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE
MINOR WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
STEPHEN FOSTER STATE PARK...TAYLOR...RACE POND...FORT MUDGE AND
BRAGANZA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3132 8203 3033 8206 3035 8232 3065 8236
      3121 8235
TIME...MOT...LOC 1908Z 237DEG 31KT 3062 8226

ZIBURA

Special weather statement, Jul 5, 3:14 PM EDT, 29 minutes before

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Special weather statement, Jul 5, 3:19 PM EDT, 24 minutes before

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Special weather statement, Jul 5, 3:23 PM EDT, 20 minutes before

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Special weather statement, Jul 5, 3:28 PM EDT, 15 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 5, 2:10 PM EDT	Special Weather Statement	JAX	Hamilton	50 min
Jul 5, 2:19 PM EDT	Special Weather Statement	JAX	Gilchrist	41 min
Jul 5, 2:22 PM EDT	Severe Thunderstorm Warning	JAX	Hamilton	23 min
Jul 5, 2:29 PM EDT	Special Weather Statement	JAX	Columbia	46 min
Jul 5, 2:47 PM EDT	Special Weather Statement	JAX	Union	43 min
Jul 5, 3:14 PM EDT	Special Weather Statement	JAX	Alachua	46 min
Jul 5, 3:19 PM EDT	Special Weather Statement	JAX	Marion	41 min
Jul 5, 3:23 PM EDT	Special Weather Statement	JAX	Nassau	52 min
Jul 5, 3:28 PM EDT	Special Weather Statement	JAX	Baker, Bradford, Union	47 min
Jul 5, 3:45 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion	45 min
Jul 5, 3:59 PM EDT	Special Weather Statement	JAX	Duval	46 min
Jul 5, 4:11 PM EDT	Special Marine Warning	JAX		94 min
Jul 5, 4:11 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Duval, Nassau	34 min
Jul 5, 4:16 PM EDT	Special Weather Statement	JAX	Putnam	44 min
Jul 5, 4:25 PM EDT	Severe Thunderstorm Warning	JAX	Marion, Putnam	35 min
Jul 5, 4:33 PM EDT	Special Weather Statement	JAX	Duval, Nassau	42 min
Jul 5, 4:36 PM EDT	Special Weather Statement	JAX	Flagler	24 min
Jul 5, 4:44 PM EDT	Special Marine Warning	JAX		2 hr
Jul 5, 4:45 PM EDT	Special Weather Statement	JAX	Saint Johns	45 min
Jul 5, 4:52 PM EDT	Special Weather Statement	JAX	Putnam	38 min
Jul 5, 4:52 PM EDT	Severe Thunderstorm Warning	JAX	Duval	23 min
Jul 5, 5:06 PM EDT	Special Marine Warning	JAX		114 min
Jul 5, 5:14 PM EDT	Special Weather Statement	JAX	Saint Johns	31 min
Jul 5, 5:48 PM EDT	Special Marine Warning	JAX		87 min
Jul 5, 2:20 PM EDT	Special Weather Statement	JAX	Appling, Bacon	40 min
Jul 5, 2:30 PM EDT	Special Weather Statement	JAX	Pierce, Wayne	45 min
Jul 5, 2:49 PM EDT	Special Weather Statement	JAX	Clinch, Ware	41 min
Jul 5, 3:08 PM EDT	Special Weather Statement	JAX	Charlton	37 min
Jul 5, 3:26 PM EDT	Severe Thunderstorm Warning	JAX	Camden	34 min
Jul 5, 4:14 PM EDT	Severe Thunderstorm Warning	JAX	Camden, Glynn	46 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015 Severe Thunderstorm Warnings in Florida, 2015 Every severe thunderstorm warning in 2015

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.