Alert archive / Florida / Special Weather Statements in 2015

Special Weather Statement, NWS Jacksonville, FL

September 6, 2015Hamilton County, Florida

NWS Jacksonville, FL issued this special weather statement at Sep 6, 2015, 5:39 PM EDT for Hamilton County, Florida. It was in force for 51 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: Sep 6, 2015, 5:39 PM EDT (21:39 UTC)
Expired: Sep 6, 2015, 6:30 PM EDT
In force: 51 min
Issued by: NWS Jacksonville, FL

County Hamilton County, FL

The radar

The Moody AFB radar (KVAX), 50 km from the middle of the area, began a volume at 21:38 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.7 hours before the alert went out and 128 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: 354 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1010 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 22 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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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 9:23 AM EDT	Special Weather Statement	JAX	Duval	22 min
Sep 6, 11:56 AM EDT	Special Marine Warning	JAX		64 min
Sep 6, 2:04 PM EDT	Special Weather Statement	JAX	Alachua	41 min
Sep 6, 2:31 PM EDT	Special Weather Statement	JAX	Gilchrist	44 min
Sep 6, 3:10 PM EDT	Special Weather Statement	JAX	Putnam	35 min
Sep 6, 3:16 PM EDT	Special Weather Statement	JAX	Columbia	44 min
Sep 6, 6:08 PM EDT	Special Weather Statement	JAX	Hamilton	37 min
Sep 6, 12:23 PM EDT	Special Weather Statement	JAX	Camden	37 min
Sep 6, 3:43 PM EDT	Special Weather Statement	JAX	Wayne	47 min
Sep 6, 3:45 PM EDT	Special Weather Statement	JAX	Brantley	45 min
Sep 6, 5:31 PM EDT	Special Weather Statement	JAX	Clinch	44 min
Sep 6, 5:33 PM EDT	Special Weather Statement	JAX	Bacon	42 min

Nearby

Special Weather Statements in Florida, 2015 Every special weather statement 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.