Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Jacksonville, FL

August 10, 2012Marion County, Florida

NWS Jacksonville, FL issued this special weather statement at Aug 10, 2012, 4:03 PM EDT for Marion County, Florida. It was in force for 42 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 10, 2012, 4:03 PM EDT (20:03 UTC)
Expired: Aug 10, 2012, 4:45 PM EDT
In force: 42 min
Issued by: NWS Jacksonville, FL

County Marion County, FL

The radar

The Jacksonville radar (KJAX), 157 km from the middle of the area, began a volume at 20:03 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

Tampa Bay, FL (KTBW), launched 12:00Z, 8.1 hours before the alert went out and 160 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: 1897 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 16 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 10, 4:00 PM EDT, 3 minutes earlier.

Area forecast discussion, Aug 10, 4:00 PM EDT, 3 minutes before

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Hazardous weather outlook, Aug 10, 3:42 AM EDT, 12 hours 21 minutes before

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In the hours before

Special weather statement, Aug 10, 11:44 AM EDT, 4 hours 19 minutes before

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Special weather statement, Aug 10, 12:20 PM EDT, 3 hours 43 minutes before

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Special weather statement, Aug 10, 1:57 PM EDT, 2 hours 6 minutes before

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Special weather statement, Aug 10, 3:29 PM EDT, 34 minutes before

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Special weather statement, Aug 10, 3:52 PM EDT, 11 minutes before

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Special weather statement, Aug 10, 4:03 PM EDT, 0 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
Aug 10, 10:44 AM EDT	Special Weather Statement	JAX	Hamilton	46 min
Aug 10, 1:57 PM EDT	Special Weather Statement	JAX	Marion	63 min
Aug 10, 3:29 PM EDT	Special Weather Statement	JAX	Flagler	31 min
Aug 10, 3:52 PM EDT	Special Weather Statement	JAX	Marion	23 min
Aug 10, 4:30 PM EDT	Special Weather Statement	JAX	Putnam	45 min
Aug 10, 4:49 PM EDT	Special Weather Statement	JAX	Saint Johns	41 min
Aug 10, 4:59 PM EDT	Special Weather Statement	JAX	Flagler	46 min
Aug 10, 5:18 PM EDT	Special Weather Statement	JAX	Saint Johns	42 min
Aug 10, 5:56 PM EDT	Special Weather Statement	JAX	Saint Johns	49 min
Aug 10, 6:14 PM EDT	Special Marine Warning	JAX		61 min
Aug 10, 6:24 PM EDT	Areal Flood Advisory	JAX	Duval, Saint Johns	96 min
Aug 10, 6:48 PM EDT	Special Weather Statement	JAX	Clay	42 min
Aug 10, 11:05 AM EDT	Special Weather Statement	JAX	Clinch	40 min
Aug 10, 11:44 AM EDT	Special Weather Statement	JAX	Ware	46 min
Aug 10, 12:20 PM EDT	Special Weather Statement	JAX	Brantley, Charlton, Pierce	40 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.