Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Jacksonville, FL

August 2, 2012Marion County, Florida

NWS Jacksonville, FL issued this special weather statement at Aug 2, 2012, 5:13 PM EDT for Marion County, Florida. It was in force for 32 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 2, 2012, 5:13 PM EDT (21:13 UTC)
Expired: Aug 2, 2012, 5:45 PM EDT
In force: 32 min
Issued by: NWS Jacksonville, FL

County Marion County, FL

The radar

The Jacksonville radar (KJAX), 135 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 136 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: 3176 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

918 
WWUS82 KJAX 022113
SPSJAX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
513 PM EDT THU AUG 2 2012

FLZ040-022145-
MARION-
513 PM EDT THU AUG 2 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CENTRAL MARION
COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID
UNTIL 545 PM EDT...

AT 513 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 2 MILES WEST OF BURBANK...OR 6 MILES SOUTHWEST
OF FORT MCCOY...MOVING NORTHEAST AT 15 MPH. THESE STRONG
THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND ANTHONY...BURBANK AND
FORT MCCOY THROUGH 545 PM EDT. HAIL UP TO THREE QUARTER INCH IN
DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45
TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR SOUTHEAST GEORGIA.

LAT...LON 2929 8187 2918 8206 2928 8216 2946 8200
TIME...MOT...LOC 2113Z 218DEG 12KT 2931 8202

$$

ENYEDI

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 4:35 PM EDT	Special Weather Statement	JAX	Nassau	25 min
Aug 2, 4:39 PM EDT	Special Marine Warning	JAX		96 min
Aug 2, 4:53 PM EDT	Special Weather Statement	JAX	Nassau	37 min
Aug 2, 5:19 PM EDT	Special Weather Statement	JAX	Nassau	26 min
Aug 2, 5:31 PM EDT	Special Weather Statement	JAX	Saint Johns	44 min
Aug 2, 5:33 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval, Saint Johns	42 min
Aug 2, 5:40 PM EDT	Special Weather Statement	JAX	Marion	50 min
Aug 2, 5:44 PM EDT	Special Marine Warning	JAX		61 min
Aug 2, 5:56 PM EDT	Special Weather Statement	JAX	Clay	49 min
Aug 2, 6:11 PM EDT	Special Weather Statement	JAX	Clay	49 min
Aug 2, 6:28 PM EDT	Special Weather Statement	JAX	Clay, Putnam	62 min
Aug 2, 7:32 PM EDT	Special Weather Statement	JAX	Clay, Flagler, Putnam, Saint Johns	58 min
Aug 2, 7:47 PM EDT	Special Weather Statement	JAX	Clay	43 min
Aug 2, 2:39 PM EDT	Special Weather Statement	JAX	Appling	51 min
Aug 2, 3:02 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Jeff Davis	43 min
Aug 2, 3:33 PM EDT	Special Weather Statement	JAX	Appling	42 min
Aug 2, 3:53 PM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	37 min
Aug 2, 4:30 PM EDT	Special Weather Statement	JAX	Wayne	45 min
Aug 2, 4:48 PM EDT	Special Weather Statement	JAX	Echols	42 min
Aug 2, 4:57 PM EDT	Special Weather Statement	JAX	Wayne	63 min
Aug 2, 5:30 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	33 min
Aug 2, 6:06 PM EDT	Special Weather Statement	JAX	Glynn	39 min

Nearby

Special Weather Statements in Florida, 2012 Every special weather statement in 2012

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.