Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Jacksonville, FL

October 10, 2018Flagler County, Florida

NWS Jacksonville, FL issued this special weather statement at Oct 10, 2018, 6:49 PM EDT for Flagler County, Florida. It was in force for 26 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: Oct 10, 2018, 6:49 PM EDT (22:49 UTC)
Expired: Oct 10, 2018, 7:15 PM EDT
In force: 26 min
Issued by: NWS Jacksonville, FL

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 129 km from the middle of the area, began a volume at 22:52 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.8 hours before the alert went out and 125 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: 1125 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 816 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 69 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 Oct 10, 5:50 PM EDT, 59 minutes earlier.

Area forecast discussion, Oct 10, 5:50 PM EDT, 59 minutes before

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In the hours before

Local storm report, Oct 10, 4:56 PM EDT, 1 hour 53 minutes before

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Local storm report, Oct 10, 5:09 PM EDT, 1 hour 40 minutes before

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Local storm report, Oct 10, 5:11 PM EDT, 1 hour 38 minutes before

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Special weather statement, Oct 10, 5:22 PM EDT, 1 hour 27 minutes before

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Local storm report, Oct 10, 5:36 PM EDT, 1 hour 13 minutes before

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Special weather statement, Oct 10, 6:49 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
Oct 10, 9:29 AM EDT	Special Weather Statement	JAX	Alachua, Marion	61 min
Oct 10, 1:21 PM EDT	Special Weather Statement	JAX	Duval, Saint Johns	54 min
Oct 10, 2:10 PM EDT	Special Weather Statement	JAX	Duval	65 min
Oct 10, 2:31 PM EDT	Special Weather Statement	JAX	Bradford	59 min
Oct 10, 2:42 PM EDT	Tornado Warning	JAX	Bradford, Clay	33 min
Oct 10, 3:10 PM EDT	Tornado Warning Tornado observed	JAX	Bradford, Clay, Duval, Nassau	39 min
Oct 10, 3:20 PM EDT	Special Weather Statement	JAX	Clay, Flagler, Marion, Putnam, Saint Johns	85 min
Oct 10, 3:39 PM EDT	Special Weather Statement	JAX	Nassau	51 min
Oct 10, 3:45 PM EDT	Special Weather Statement	JAX	Alachua, Baker, Bradford, Union	60 min
Oct 10, 3:56 PM EDT	Special Marine Warning	JAX		94 min
Oct 10, 4:05 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Saint Johns	40 min
Oct 10, 4:10 PM EDT	Tornado Warning	JAX	Alachua, Bradford, Clay, Putnam	50 min
Oct 10, 4:37 PM EDT	Tornado Warning	JAX	Nassau	38 min
Oct 10, 4:44 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Nassau	46 min
Oct 10, 4:48 PM EDT	Special Weather Statement	JAX	Flagler	42 min
Oct 10, 4:49 PM EDT	Special Marine Warning	JAX		41 min
Oct 10, 5:22 PM EDT	Special Marine Warning	JAX		83 min
Oct 10, 5:22 PM EDT	Special Weather Statement	JAX	Marion	53 min
Oct 10, 6:47 PM EDT	Special Marine Warning	JAX		58 min
Oct 10, 7:30 PM EDT	Special Marine Warning	JAX		60 min
Oct 10, 3:20 AM EDT	Flash Flood Watch	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis	22 hr
Oct 10, 2:08 PM EDT	Hurricane Warning	JAX	Atkinson, Coffee, Jeff Davis	9 hr
Oct 10, 4:10 PM EDT	Tornado Warning	JAX	Brantley, Charlton, Pierce, Ware	35 min
Oct 10, 4:44 PM EDT	Tornado Warning	JAX	Brantley, Charlton	31 min
Oct 10, 7:43 PM EDT	Special Weather Statement	JAX	Lanier	32 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.