Alert archive / Georgia / Special Weather Statements in 2016

Special Weather Statement, NWS Jacksonville, FL

August 4, 2016Glynn County, Georgia

NWS Jacksonville, FL issued this special weather statement at Aug 4, 2016, 1:21 PM EDT for Glynn County, Georgia. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 4, 2016, 1:21 PM EDT (17:21 UTC)
Expired: Aug 4, 2016, 2:00 PM EDT
In force: 39 min
Issued by: NWS Jacksonville, FL

County Glynn County, GA

The radar

The Jacksonville radar (KJAX), 76 km from the middle of the area, began a volume at 17:22 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.4 hours before the alert went out and 75 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: 804 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -82 m²/s²
0-3 km storm-relative helicity: -64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

790 
WWUS82 KJAX 041721
SPSJAX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
121 PM EDT THU AUG 4 2016
 
GAZ153-154-165-166-041800-
COASTAL CAMDEN GA-INLAND CAMDEN GA-INLAND GLYNN GA-COASTAL GLYNN GA-
121 PM EDT THU AUG 4 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CAMDEN AND CENTRAL
GLYNN COUNTIES UNTIL 200 PM EDT...

AT 120 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BRUNSWICK...MOVING NORTHEAST AT 10 MPH.

EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED
BUILDING. UNPLUG ELECTRONIC DEVICES AND APPLIANCES AS THEY ARE
SUSCEPTIBLE TO POWER SURGES AND MAY BE DAMAGED BY NEARBY LIGHTNING
STRIKES.

LOCATIONS IMPACTED INCLUDE...
BRUNSWICK...ST. SIMONS ISLAND...DOCK JUNCTION...JEKYLL ISLAND...SEA
ISLAND...COUNTRY CLUB ESTATES AND DOVER BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
 
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3120 8125 3116 8128 3110 8137 3105 8138
      3091 8149 3106 8173 3133 8157
TIME...MOT...LOC 1720Z 223DEG 8KT 3108 8152 

$$

NELSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 9:50 AM EDT	Special Weather Statement	JAX	Marion	40 min
Aug 4, 12:38 PM EDT	Areal Flood Advisory	JAX	Union	67 min
Aug 4, 1:27 PM EDT	Special Weather Statement	JAX	Nassau	48 min
Aug 4, 1:37 PM EDT	Areal Flood Advisory	JAX	Duval, Nassau	113 min
Aug 4, 1:51 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	24 min
Aug 4, 1:57 PM EDT	Tornado Warning	JAX	Nassau	12 min
Aug 4, 2:02 PM EDT	Special Marine Warning	JAX		58 min
Aug 4, 2:29 PM EDT	Special Weather Statement	JAX	Flagler	31 min
Aug 4, 2:32 PM EDT	Areal Flood Warning	JAX	Nassau	88 min
Aug 4, 2:58 PM EDT	Special Weather Statement	JAX	Flagler	32 min
Aug 3, 10:08 PM EDT	Areal Flood Advisory	JAX	Appling, Jeff Davis	52 min
Aug 3, 10:11 PM EDT	Special Weather Statement	JAX	Appling	34 min
Aug 4, 2:14 PM EDT	Special Weather Statement	JAX	Camden	31 min
Aug 4, 3:02 PM EDT	Special Weather Statement	JAX	Jeff Davis	28 min
Aug 4, 3:27 PM EDT	Areal Flood Advisory	JAX	Appling, Jeff Davis	2 hr
Aug 4, 3:35 PM EDT	Special Weather Statement	JAX	Coffee	40 min
Aug 4, 5:00 PM EDT	Areal Flood Advisory	JAX	Appling, Bacon	90 min

Nearby

Special Weather Statements in Georgia, 2016 Every special weather statement in 2016

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.