Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Jacksonville, FL

August 29, 2014Alachua County, Florida

NWS Jacksonville, FL issued this special weather statement at Aug 29, 2014, 7:21 PM EDT for Alachua County, Florida. It was in force for 39 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 29, 2014, 7:21 PM EDT (23:21 UTC)
Expired: Aug 29, 2014, 8:00 PM EDT
In force: 39 min
Issued by: NWS Jacksonville, FL

County Alachua County, FL

The radar

The Jacksonville radar (KJAX), 132 km from the middle of the area, began a volume at 23:24 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, 11.4 hours before the alert went out and 194 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: 2349 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 732 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -45 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 29, 1:50 PM EDT, 5 hours 31 minutes earlier.

Area forecast discussion, Aug 29, 1:50 PM EDT, 5 hours 31 minutes before

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Hazardous weather outlook, Aug 29, 3:52 AM EDT, 15 hours 29 minutes before

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In the hours before

Special weather statement, Aug 29, 5:38 PM EDT, 1 hour 43 minutes before

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Special weather statement, Aug 29, 6:22 PM EDT, 59 minutes before

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Special weather statement, Aug 29, 6:25 PM EDT, 56 minutes before

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Special weather statement, Aug 29, 6:33 PM EDT, 48 minutes before

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Special weather statement, Aug 29, 6:56 PM EDT, 25 minutes before

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Special weather statement, Aug 29, 7:21 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 29, 3:51 PM EDT	Special Weather Statement	JAX	Marion	39 min
Aug 29, 4:59 PM EDT	Special Weather Statement	JAX	Putnam	46 min
Aug 29, 5:38 PM EDT	Special Weather Statement	JAX	Marion	52 min
Aug 29, 5:50 PM EDT	Areal Flood Advisory	JAX	Alachua, Marion, Putnam	85 min
Aug 29, 6:19 PM EDT	Areal Flood Warning	JAX	Alachua, Marion	86 min
Aug 29, 6:22 PM EDT	Special Weather Statement	JAX	Marion	53 min
Aug 29, 6:25 PM EDT	Special Weather Statement	JAX	Baker	50 min
Aug 29, 6:29 PM EDT	Areal Flood Advisory	JAX	Marion	91 min
Aug 29, 6:33 PM EDT	Special Weather Statement	JAX	Alachua	42 min
Aug 29, 6:38 PM EDT	Areal Flood Advisory	JAX	Alachua, Bradford, Clay	82 min
Aug 29, 6:56 PM EDT	Special Weather Statement	JAX	Columbia	49 min
Aug 29, 7:11 PM EDT	Areal Flood Advisory	JAX	Alachua, Marion	94 min
Aug 29, 7:50 PM EDT	Special Weather Statement	JAX	Columbia	40 min
Aug 29, 7:56 PM EDT	Areal Flood Advisory	JAX	Alachua	94 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.