Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

February 6, 2021Clay County, Duval County, Florida

NWS Jacksonville, FL issued this special weather statement at Feb 6, 2021, 5:39 PM EST for Clay County, Duval 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: Feb 6, 2021, 5:39 PM EST (22:39 UTC)
Expired: Feb 6, 2021, 6:30 PM EST
In force: 51 min
Issued by: NWS Jacksonville, FL

Counties Clay County, FL, Duval County, FL

The radar

The Jacksonville radar (KJAX), 44 km from the middle of the area, began a volume at 22:41 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

Jacksonville, FL (KJAX), launched 12:00Z, 10.7 hours before the alert went out and 46 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 370 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 Feb 6, 2:42 PM EST, 2 hours 57 minutes earlier.

Area forecast discussion, Feb 6, 2:42 PM EST, 2 hours 57 minutes before

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In the hours before

Special weather statement, Feb 6, 4:26 PM EST, 1 hour 13 minutes before

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Special weather statement, Feb 6, 4:42 PM EST, 57 minutes before

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Special weather statement, Feb 6, 5:02 PM EST, 37 minutes before

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Special weather statement, Feb 6, 5:06 PM EST, 33 minutes before

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Special weather statement, Feb 6, 5:37 PM EST, 2 minutes before

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Special weather statement, Feb 6, 5:39 PM EST, 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
Feb 6, 10:45 AM EST	Small Craft Advisory	JAX		23 hr
Feb 6, 3:59 PM EST	Special Weather Statement	JAX	Gilchrist	46 min
Feb 6, 4:14 PM EST	Special Weather Statement	JAX	Marion	46 min
Feb 6, 4:42 PM EST	Special Weather Statement	JAX	Alachua, Gilchrist	48 min
Feb 6, 4:59 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Columbia, Gilchrist, Union	46 min
Feb 6, 5:02 PM EST	Special Weather Statement	JAX	Clay, Putnam	43 min
Feb 6, 5:06 PM EST	Special Weather Statement	JAX	Marion	39 min
Feb 6, 5:37 PM EST	Special Weather Statement	JAX	Marion, Putnam	38 min
Feb 6, 5:41 PM EST	Tornado Warning	JAX	Flagler, Putnam	34 min
Feb 6, 5:46 PM EST	Special Weather Statement	JAX	Alachua, Bradford, Gilchrist, Union	44 min
Feb 6, 6:03 PM EST	Special Marine Warning	JAX		57 min
Feb 6, 6:07 PM EST	Severe Thunderstorm Warning	JAX	Flagler, Saint Johns	23 min
Feb 6, 6:30 PM EST	Special Weather Statement	JAX	Flagler	45 min
Feb 6, 6:32 PM EST	Special Weather Statement	JAX	Alachua, Bradford, Clay	43 min
Feb 6, 6:51 PM EST	Special Weather Statement	JAX	Flagler	24 min
Feb 6, 6:53 PM EST	Severe Thunderstorm Warning	JAX	Marion	35 min
Feb 6, 6:55 PM EST	Special Marine Warning	JAX		65 min
Feb 6, 6:56 PM EST	Special Marine Warning	JAX		64 min
Feb 6, 3:11 PM EST	Special Weather Statement	JAX	Coffee	34 min
Feb 6, 4:26 PM EST	Special Weather Statement	JAX	Clinch, Ware	49 min

Nearby

Special Weather Statements in Florida, 2021 Every special weather statement in 2021

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.