Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Miami, FL

May 30, 2018Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at May 30, 2018, 4:03 PM EDT for Palm Beach 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: May 30, 2018, 4:03 PM EDT (20:03 UTC)
Expired: May 30, 2018, 4:30 PM EDT
In force: 27 min
Issued by: NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 140 km from the middle of the area, began a volume at 20:02 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

Tampa Bay, FL (KTBW), launched 12:00Z, 8.1 hours before the alert went out and 244 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: 267 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 650 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 161 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 Miami, FL wrote its last area forecast discussion before this special weather statement went out at May 30, 3:02 PM EDT, 1 hour 1 minute earlier.

Area forecast discussion, May 30, 3:02 PM EDT, 1 hour 1 minute before

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Hazardous weather outlook, May 30, 3:26 PM EDT, 37 minutes before

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In the hours before

Local storm report, May 30, 10:49 AM EDT, 5 hours 14 minutes before

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Special weather statement, May 30, 11:20 AM EDT, 4 hours 43 minutes before

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Special weather statement, May 30, 11:31 AM EDT, 4 hours 32 minutes before

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Special weather statement, May 30, 2:23 PM EDT, 1 hour 40 minutes before

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Special weather statement, May 30, 2:34 PM EDT, 1 hour 29 minutes before

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Special weather statement, May 30, 4:03 PM 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
May 29, 8:33 PM EDT	Special Weather Statement	MFL	Miami-Dade	27 min
May 29, 9:41 PM EDT	Special Weather Statement	MFL	Broward	49 min
May 30, 2:19 AM EDT	Special Marine Warning	MFL		41 min
May 30, 2:48 AM EDT	Special Marine Warning	MFL		42 min
May 30, 2:53 AM EDT	Special Weather Statement	MFL	Collier	37 min
May 30, 3:13 AM EDT	Special Marine Warning	MFL		62 min
May 30, 3:18 AM EDT	Special Weather Statement	MFL	Collier	27 min
May 30, 4:16 AM EDT	Special Marine Warning	MFL		44 min
May 30, 4:17 AM EDT	Special Weather Statement	MFL	Collier	28 min
May 30, 4:56 AM EDT	Special Weather Statement	MFL	Collier	49 min
May 30, 8:04 AM EDT	Special Weather Statement	MFL	Collier	41 min
May 30, 11:20 AM EDT	Special Weather Statement	MFL	Hendry	40 min
May 30, 11:31 AM EDT	Special Weather Statement	MFL	Glades	29 min
May 30, 2:23 PM EDT	Special Weather Statement	MFL	Palm Beach	22 min
May 30, 2:34 PM EDT	Special Weather Statement	MFL	Broward	26 min
May 30, 4:40 PM EDT	Special Marine Warning	MFL		50 min
May 30, 5:29 PM EDT	Special Weather Statement	MFL	Glades	31 min
May 30, 6:37 PM EDT	Special Weather Statement	MFL	Broward	38 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.