Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

September 8, 2021Putnam County, Florida

NWS Jacksonville, FL issued this special weather statement at Sep 8, 2021, 5:33 PM EDT for Putnam County, Florida. It was in force for 27 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: Sep 8, 2021, 5:33 PM EDT (21:33 UTC)
Expired: Sep 8, 2021, 6:00 PM EDT
In force: 27 min
Issued by: NWS Jacksonville, FL
Hail: 0.25 in
Wind: 40

County Putnam County, FL

The radar

The Jacksonville radar (KJAX), 108 km from the middle of the area, began a volume at 21:36 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, 9.6 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: 611 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1063 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: -9 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 Sep 8, 1:35 PM EDT, 3 hours 58 minutes earlier.

Area forecast discussion, Sep 8, 1:35 PM EDT, 3 hours 58 minutes before

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In the hours before

Special weather statement, Sep 8, 2:56 PM EDT, 2 hours 37 minutes before

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Special weather statement, Sep 8, 3:42 PM EDT, 1 hour 51 minutes before

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Special weather statement, Sep 8, 4:24 PM EDT, 1 hour 9 minutes before

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Special weather statement, Sep 8, 5:21 PM EDT, 12 minutes before

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Local storm report, Sep 8, 5:24 PM EDT, 9 minutes before

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Special weather statement, Sep 8, 5:33 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
Sep 7, 8:29 PM EDT	Special Weather Statement	JAX	Marion	31 min
Sep 7, 9:08 PM EDT	Special Weather Statement	JAX	Marion	37 min
Sep 8, 2:37 AM EDT	Rip Current Statement	JAX	Duval, Flagler, Nassau	5 days
Sep 8, 12:32 PM EDT	Special Weather Statement	JAX	Hamilton	28 min
Sep 8, 1:16 PM EDT	Special Weather Statement	JAX	Union	29 min
Sep 8, 2:20 PM EDT	Special Weather Statement	JAX	Nassau	40 min
Sep 8, 2:26 PM EDT	Special Weather Statement	JAX	Duval	49 min
Sep 8, 2:47 PM EDT	Special Marine Warning	JAX		88 min
Sep 8, 2:49 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	26 min
Sep 8, 2:56 PM EDT	Special Weather Statement	JAX	Alachua, Bradford	49 min
Sep 8, 3:29 PM EDT	Small Craft Advisory	JAX		60 hr
Sep 8, 3:39 PM EDT	Special Marine Warning	JAX		40 min
Sep 8, 3:42 PM EDT	Special Weather Statement	JAX	Saint Johns	33 min
Sep 8, 4:06 PM EDT	Special Marine Warning	JAX		84 min
Sep 8, 4:24 PM EDT	Special Weather Statement	JAX	Marion	36 min
Sep 8, 4:59 PM EDT	Special Marine Warning	JAX		91 min
Sep 8, 5:21 PM EDT	Special Weather Statement	JAX	Marion	24 min
Sep 8, 5:39 PM EDT	Gale Warning	JAX		22 hr
Sep 8, 5:40 PM EDT	Wind Advisory	JAX	Alachua, Baker, Bradford, Clay, Duval, Gilchrist and 3 more	18 hr
Sep 8, 6:03 PM EDT	Special Weather Statement	JAX	Marion	27 min
Sep 8, 6:26 PM EDT	Special Marine Warning	JAX		28 min
Sep 8, 6:33 PM EDT	Special Weather Statement	JAX	Suwannee	42 min
Sep 8, 7:08 PM EDT	Special Weather Statement	JAX	Gilchrist	52 min
Sep 8, 7:29 PM EDT	Special Weather Statement	JAX	Gilchrist	31 min
Sep 8, 12:41 PM EDT	Special Weather Statement	JAX	Echols	34 min
Sep 8, 1:17 PM EDT	Special Weather Statement	JAX	Charlton	28 min
Sep 8, 1:55 PM EDT	Special Weather Statement	JAX	Charlton	35 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.