Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

June 20, 2021Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Jun 20, 2021, 5:28 PM EDT for Palm Beach County, Florida. It was in force for 47 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: Jun 20, 2021, 5:28 PM EDT (21:28 UTC)
Expired: Jun 20, 2021, 6:15 PM EDT
In force: 47 min
Issued by: NWS Miami, FL

County Palm Beach County, FL

The radar

The Melbourne radar (KMLB), 137 km from the middle of the area, began a volume at 21:28 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, 9.5 hours before the alert went out and 128 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: 2018 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 893 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: -12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

544 
WWUS82 KMFL 202128
SPSMFL

Special Weather Statement
National Weather Service Miami FL
528 PM EDT Sun Jun 20 2021
 
FLZ063-066-067-202215-
Hendry FL-Inland Palm Beach County FL-Glades FL-
528 PM EDT Sun Jun 20 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HENDRY...
NORTHWESTERN PALM BEACH AND SOUTH CENTRAL GLADES COUNTIES UNTIL 615
PM EDT...

* At 528 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Lake Harbor, moving east at 5
  mph.

* Small hail, funnel clouds, and winds in excess of 45 mph possible
  with this storm.

* Locations impacted include...
  Belle Glade, Clewiston, Pahokee, South Bay, Moore Haven, Canal
  Point, Lake Harbor, Belle Glade Camp, Fremd Village-Padgett Island
  and Harlem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2696 8061 2696 8054 2675 8045 2653 8086
      2687 8119 2692 8100 2689 8100 2688 8091
      2679 8082 2691 8070 2698 8069 2699 8068
      2701 8063
TIME...MOT...LOC 2128Z 252DEG 6KT 2673 8076 

$$

Weinman

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 2:46 PM EDT	Special Weather Statement	MFL	Broward	44 min
Jun 20, 3:16 PM EDT	Special Weather Statement	MFL	Palm Beach	44 min
Jun 20, 3:27 PM EDT	Special Weather Statement	MFL	Broward	48 min
Jun 20, 3:28 PM EDT	Special Weather Statement	MFL	Palm Beach	47 min
Jun 20, 3:45 PM EDT	Special Weather Statement	MFL	Broward	45 min
Jun 20, 3:56 PM EDT	Special Weather Statement	MFL	Broward	19 min
Jun 20, 4:11 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	49 min
Jun 20, 4:14 PM EDT	Special Weather Statement	MFL	Broward	61 min
Jun 20, 4:17 PM EDT	Special Weather Statement	MFL	Miami-Dade	58 min
Jun 20, 4:20 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	25 min
Jun 20, 4:26 PM EDT	Special Weather Statement	MFL	Palm Beach	49 min
Jun 20, 4:41 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	49 min
Jun 20, 4:47 PM EDT	Special Weather Statement	MFL	Miami-Dade	43 min
Jun 20, 4:56 PM EDT	Special Marine Warning	MFL		66 min
Jun 20, 5:00 PM EDT	Special Weather Statement	MFL	Broward	30 min
Jun 20, 5:07 PM EDT	Areal Flood Advisory	MFL	Broward, Palm Beach	3 hr
Jun 20, 5:15 PM EDT	Special Weather Statement	MFL	Palm Beach	45 min
Jun 20, 5:15 PM EDT	Special Weather Statement	MFL	Miami-Dade	45 min
Jun 20, 5:26 PM EDT	Special Weather Statement	MFL	Broward	49 min
Jun 20, 5:28 PM EDT	Special Marine Warning	MFL		47 min
Jun 20, 5:48 PM EDT	Special Marine Warning	MFL		57 min
Jun 20, 5:50 PM EDT	Special Weather Statement	MFL	Palm Beach	55 min
Jun 20, 5:59 PM EDT	Special Weather Statement	MFL	Miami-Dade	46 min
Jun 20, 6:02 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	3 hr
Jun 20, 6:40 PM EDT	Special Weather Statement	MFL	Hendry	50 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.