Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Jacksonville, FL

July 2, 2018Hamilton County, Florida

NWS Jacksonville, FL issued this special weather statement at Jul 2, 2018, 8:02 PM EDT for Hamilton County, Florida. It was in force for 28 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 2, 2018, 8:02 PM EDT (00:02 UTC)
Expired: Jul 2, 2018, 8:30 PM EDT
In force: 28 min
Issued by: NWS Jacksonville, FL

County Hamilton County, FL

The radar

The Moody AFB radar (KVAX), 44 km from the middle of the area, began a volume at 00:02 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 00:00Z, 0.0 hours before the alert went out and 129 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: 985 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1040 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jul 2, 3:41 PM EDT, 4 hours 21 minutes earlier.

Area forecast discussion, Jul 2, 3:41 PM EDT, 4 hours 21 minutes before

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In the hours before

Special weather statement, Jul 2, 5:35 PM EDT, 2 hours 27 minutes before

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Special weather statement, Jul 2, 5:46 PM EDT, 2 hours 16 minutes before

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Local storm report, Jul 2, 6:01 PM EDT, 2 hours 1 minute before

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Special weather statement, Jul 2, 6:12 PM EDT, 1 hour 50 minutes before

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Special weather statement, Jul 2, 6:29 PM EDT, 1 hour 33 minutes before

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Special weather statement, Jul 2, 6:50 PM EDT, 1 hour 12 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
Jul 2, 8:19 PM EDT	Special Weather Statement	JAX	Hamilton	26 min
Jul 2, 8:26 PM EDT	Special Weather Statement	JAX	Hamilton	49 min
Jul 3, 10:43 AM EDT	Special Marine Warning	JAX		92 min
Jul 3, 11:13 AM EDT	Special Weather Statement	JAX	Duval	32 min
Jul 3, 1:16 PM EDT	Special Weather Statement	JAX	Marion	29 min
Jul 3, 1:39 PM EDT	Special Weather Statement	JAX	Putnam	51 min
Jul 3, 1:51 PM EDT	Special Weather Statement	JAX	Bradford	39 min
Jul 3, 1:58 PM EDT	Special Weather Statement	JAX	Marion	47 min
Jul 3, 2:38 PM EDT	Special Weather Statement	JAX	Marion	37 min
Jul 3, 2:41 PM EDT	Special Weather Statement	JAX	Marion	49 min
Jul 3, 3:28 PM EDT	Special Weather Statement	JAX	Marion	32 min
Jul 3, 4:07 PM EDT	Special Weather Statement	JAX	Alachua	23 min
Jul 2, 8:38 PM EDT	Severe Thunderstorm Warning	JAX	Echols	37 min
Jul 3, 4:19 PM EDT	Special Weather Statement	JAX	Wayne	41 min
Jul 3, 5:19 PM EDT	Special Weather Statement	JAX	Echols	41 min

Nearby

Special Weather Statements in Florida, 2018 Every special weather statement in 2018

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.