Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Jacksonville, FL

August 7, 2014Gilchrist County, Florida

NWS Jacksonville, FL issued this special weather statement at Aug 7, 2014, 4:44 PM EDT for Gilchrist County, Florida. It was in force for 31 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 7, 2014, 4:44 PM EDT (20:44 UTC)
Expired: Aug 7, 2014, 5:15 PM EDT
In force: 31 min
Issued by: NWS Jacksonville, FL

County Gilchrist County, FL

The radar

The Moody AFB radar (KVAX), 127 km from the middle of the area, began a volume at 20:46 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, 8.7 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: 767 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: -10 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
Aug 7, 2:28 PM EDT	Special Weather Statement	JAX	Duval	32 min
Aug 7, 3:04 PM EDT	Areal Flood Advisory	JAX	Duval, Saint Johns	86 min
Aug 7, 3:15 PM EDT	Special Weather Statement	JAX	Clay	45 min
Aug 7, 4:35 PM EDT	Special Weather Statement	JAX	Saint Johns	25 min
Aug 7, 4:40 PM EDT	Areal Flood Advisory	JAX	Saint Johns	95 min
Aug 7, 4:47 PM EDT	Areal Flood Advisory	JAX	Gilchrist	88 min
Aug 7, 4:47 PM EDT	Special Weather Statement	JAX	Marion	28 min
Aug 7, 4:50 PM EDT	Areal Flood Advisory	JAX	Marion	85 min
Aug 7, 5:00 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Gilchrist	45 min
Aug 7, 5:22 PM EDT	Special Weather Statement	JAX	Flagler	38 min
Aug 7, 5:39 PM EDT	Severe Thunderstorm Warning	JAX	Flagler, Saint Johns	16 min
Aug 7, 5:54 PM EDT	Special Weather Statement	JAX	Putnam	36 min
Aug 7, 6:27 PM EDT	Special Weather Statement	JAX	Marion	33 min
Aug 7, 6:34 PM EDT	Special Weather Statement	JAX	Putnam	26 min
Aug 7, 6:43 PM EDT	Special Weather Statement	JAX	Putnam	32 min

Nearby

Special Weather Statements in Florida, 2014 Every special weather statement in 2014

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.