Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

October 25, 2021Collier County, Florida

NWS Miami, FL issued this special weather statement at Oct 25, 2021, 4:37 AM EDT for Collier County, Florida. It was in force for 38 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 25, 2021, 4:37 AM EDT (08:37 UTC)
Expired: Oct 25, 2021, 5:15 AM EDT
In force: 38 min
Issued by: NWS Miami, FL
Hail: 0.00 in
Wind: 30

County Collier County, FL

The radar

The Miami radar (KAMX), 127 km from the middle of the area, began a volume at 08:37 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

Key West, FL (KEYW), launched 00:00Z, 8.6 hours before the alert went out and 156 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: 1137 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 915 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

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 Miami, FL wrote its last area forecast discussion before this special weather statement went out at Oct 25, 2:50 AM EDT, 1 hour 47 minutes earlier.

Area forecast discussion, Oct 25, 2:50 AM EDT, 1 hour 47 minutes before

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Hazardous weather outlook, Oct 25, 4:03 AM EDT, 34 minutes before

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In the hours before

Special weather statement, Oct 25, 4:37 AM EDT, 0 minutes before

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The office that day

Everything else NWS Miami, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 25, 1:30 AM EDT	Special Marine Warning	MFL		30 min
Oct 25, 3:55 AM EDT	Special Marine Warning	MFL		50 min
Oct 25, 5:16 AM EDT	Special Weather Statement	MFL	Collier	44 min
Oct 25, 8:27 AM EDT	Special Marine Warning	MFL		33 min
Oct 25, 12:40 PM EDT	Special Weather Statement	MFL	Broward	35 min
Oct 25, 1:10 PM EDT	Special Weather Statement	MFL	Broward	35 min
Oct 25, 1:20 PM EDT	Special Marine Warning	MFL		25 min
Oct 25, 1:40 PM EDT	Special Marine Warning	MFL		65 min
Oct 25, 4:06 PM EDT	Special Weather Statement	MFL	Martin	24 min
Oct 25, 4:25 PM EDT	Special Weather Statement	MFL	Martin	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.