Alert archive / Florida / Coastal Flood Statements in 2020

Coastal Flood Statement 12, NWS Miami, FL

October 22, 2020Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this coastal flood statement at Oct 22, 2020, 4:38 PM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It took effect at Oct 22, 2020, 8:00 PM EDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Oct 22, 2020, 4:38 PM EDT (20:38 UTC)
In effect from: Oct 22, 2020, 8:00 PM EDT
Expired: Oct 23, 2020, 8:00 PM EDT
In force: 24 hr
Issued by: NWS Miami, FL

Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 20:37 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

Miami, FL (KMFL), launched 12:00Z, 8.6 hours before the alert went out and 39 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: 481 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 729 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood 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 coastal flood statement went out at Oct 22, 3:17 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, Oct 22, 3:17 PM EDT, 1 hour 21 minutes before

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Hazardous weather outlook, Oct 22, 10:19 AM EDT, 6 hours 19 minutes before

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In the hours before

Special weather statement, Oct 22, 11:40 AM EDT, 4 hours 58 minutes before

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Special weather statement, Oct 22, 1:38 PM EDT, 3 hours before

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Local storm report, Oct 22, 2:36 PM EDT, 2 hours 2 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 22, 1:22 AM EDT	Special Weather Statement	MFL	Broward	23 min
Oct 22, 7:48 AM EDT	Areal Flood Advisory	MFL	Broward, Miami-Dade	117 min
Oct 22, 9:15 AM EDT	Areal Flood Advisory	MFL	Broward	2 hr
Oct 22, 9:48 AM EDT	Areal Flood Advisory	MFL	Palm Beach	117 min
Oct 22, 11:40 AM EDT	Special Weather Statement	MFL	Monroe	65 min
Oct 22, 1:35 PM EDT	Special Marine Warning	MFL		25 min
Oct 22, 1:38 PM EDT	Special Weather Statement	MFL	Palm Beach	37 min
Oct 22, 1:48 PM EDT	Areal Flood Advisory	MFL	Palm Beach	117 min
Oct 22, 3:41 PM EDT	Areal Flood Advisory	MFL	Palm Beach	3 hr

Nearby

Coastal Flood Statements in Florida, 2020 Every coastal flood statement in 2020

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.