Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Jacksonville, FL

July 6, 2012Marion County, Florida

NWS Jacksonville, FL issued this special weather statement at Jul 6, 2012, 4:16 PM EDT for Marion County, Florida. It was in force for 29 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: Jul 6, 2012, 4:16 PM EDT (20:16 UTC)
Expired: Jul 6, 2012, 4:45 PM EDT
In force: 29 min
Issued by: NWS Jacksonville, FL

County Marion County, FL

The radar

The Jacksonville radar (KJAX), 138 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 140 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: 1478 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: -15 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.

475 
WWUS82 KJAX 062016
SPSJAX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
416 PM EDT FRI JUL 6 2012

FLZ040-062045-
MARION-
416 PM EDT FRI JUL 6 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN MARION
COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 445 PM
EDT...

AT 416 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER MARION COUNTY...OR 4 MILES NORTH OF
JUNIPER SPRINGS...STATIONARY. THIS STRONG THUNDERSTORM WILL IMPACT
MAINLY RURAL AREAS OF MARION COUNTY THROUGH 445 PM EDT.
EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH
CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

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

LAT...LON 2921 8164 2918 8178 2930 8181 2932 8168
TIME...MOT...LOC 2016Z 320DEG 1KT 2923 8174

$$

TRABERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 2:11 PM EDT	Special Weather Statement	JAX	Flagler	34 min
Jul 6, 2:38 PM EDT	Special Weather Statement	JAX	Marion	37 min
Jul 6, 3:04 PM EDT	Special Weather Statement	JAX	Marion	26 min
Jul 6, 3:30 PM EDT	Special Weather Statement	JAX	Marion	30 min
Jul 6, 3:54 PM EDT	Special Weather Statement	JAX	Marion	36 min
Jul 6, 4:06 PM EDT	Special Weather Statement	JAX	Flagler	24 min
Jul 6, 4:14 PM EDT	Special Weather Statement	JAX	Putnam	31 min
Jul 6, 5:12 PM EDT	Special Weather Statement	JAX	Putnam	33 min
Jul 6, 5:43 PM EDT	Special Weather Statement	JAX	Saint Johns	32 min
Jul 6, 6:59 PM EDT	Special Weather Statement	JAX	Clay	31 min
Jul 6, 3:00 AM EDT	Special Weather Statement	JAX	Wayne	45 min
Jul 6, 1:02 PM EDT	Special Weather Statement	JAX	Bacon	28 min
Jul 6, 1:11 PM EDT	Special Weather Statement	JAX	Appling	34 min
Jul 6, 1:45 PM EDT	Special Weather Statement	JAX	Appling	30 min
Jul 6, 2:01 PM EDT	Areal Flood Advisory	JAX	Atkinson, Coffee	119 min
Jul 6, 2:05 PM EDT	Special Weather Statement	JAX	Appling	10 min
Jul 6, 2:09 PM EDT	Special Weather Statement	JAX	Coffee	36 min
Jul 6, 2:15 PM EDT	Special Weather Statement	JAX	Appling	45 min
Jul 6, 2:36 PM EDT	Special Weather Statement	JAX	Appling	24 min
Jul 6, 2:37 PM EDT	Special Weather Statement	JAX	Atkinson	38 min
Jul 6, 2:54 PM EDT	Special Weather Statement	JAX	Coffee	36 min
Jul 6, 3:44 PM EDT	Special Weather Statement	JAX	Atkinson	31 min
Jul 6, 4:41 PM EDT	Special Weather Statement	JAX	Pierce	34 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.