Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

June 12, 2021Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Jun 12, 2021, 2:51 PM EDT for Palm Beach County, Florida. It was in force for 39 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 12, 2021, 2:51 PM EDT (18:51 UTC)
Expired: Jun 12, 2021, 3:30 PM EDT
In force: 39 min
Issued by: NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 91 km from the middle of the area, began a volume at 18:54 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, 6.9 hours before the alert went out and 66 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: 1084 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 926 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 23 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 Jun 12, 1:31 PM EDT, 1 hour 20 minutes earlier.

Area forecast discussion, Jun 12, 1:31 PM EDT, 1 hour 20 minutes before

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Hazardous weather outlook, Jun 12, 9:51 AM EDT, 5 hours before

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In the hours before

Special weather statement, Jun 12, 2:51 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Miami FL
251 PM EDT Sat Jun 12 2021

FLZ067-068-071-072-168-121930-
Inland Broward County FL-Coastal Palm Beach County FL-
Metro Broward County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
251 PM EDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BROWARD AND
SOUTHEASTERN PALM BEACH COUNTIES UNTIL 330 PM EDT...

* At 250 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Mission Bay, or 10 miles north
  of Coral Springs, moving northeast at 10 mph.

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

* Locations impacted include...
  Coral Springs, Boca Raton, Deerfield Beach, Boynton Beach, Delray
  Beach, Wellington, Highland Beach, Ocean Ridge, Coconut Creek,
  Greenacres, Parkland, Atlantis, Loxahatchee NWR, Mission Bay, Boca
  Pointe, Boca Del Mar, Hamptons At Boca Raton, Village Of Golf,
  Whisper Walk and Godfrey Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 2625 8028 2635 8040 2655 8038 2665 8015
      2642 7998
TIME...MOT...LOC 1850Z 236DEG 11KT 2641 8029

HVN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 5:01 PM EDT	Special Weather Statement	MFL	Miami-Dade	44 min
Jun 12, 5:20 PM EDT	Special Weather Statement	MFL	Broward	40 min
Jun 12, 6:42 PM EDT	Special Weather Statement	MFL	Palm Beach	48 min
Jun 12, 7:28 PM EDT	Special Weather Statement	MFL	Broward, Palm Beach	47 min
Jun 12, 7:43 PM EDT	Special Weather Statement	MFL	Palm Beach	32 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.