Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 49, NWS Miami, FL

June 8, 2020Palm Beach County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 8, 2020, 1:43 PM EDT for Palm Beach County, Florida. It was in force for 20 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 8, 2020, 1:43 PM EDT (17:43 UTC)
Expired: Jun 8, 2020, 2:03 PM EDT
In force: 20 min
Issued by: NWS Miami, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 107 km from the middle of the area, began a volume at 17:44 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, 5.7 hours before the alert went out and 82 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: 1834 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

763 
WUUS52 KMFL 081743
SVRMFL
FLC099-081830-
/O.NEW.KMFL.SV.W.0049.200608T1743Z-200608T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
143 PM EDT Mon Jun 8 2020

The National Weather Service in Miami has issued a

* Severe Thunderstorm Warning for...
  East central Palm Beach County in southeastern Florida...

* Until 230 PM EDT.

* At 142 PM EDT, a severe thunderstorm was located over Loxahatchee
  NWR, or 9 miles south of Wellington, moving north at 10 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Wellington, Greenacres, Palm Springs, Atlantis and Loxahatchee NWR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Miami. You can also share your report with NWS Miami on
Facebook and Twitter.

&&

LAT...LON 2648 8019 2649 8032 2668 8033 2666 8007
TIME...MOT...LOC 1742Z 186DEG 11KT 2654 8025 

HAIL...0.75IN
WIND...60MPH
 
$$

Weinman

1 follow-up statement

168 
WWUS52 KMFL 081803
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
203 PM EDT Mon Jun 8 2020

FLC099-081813-
/O.CAN.KMFL.SV.W.0049.000000T0000Z-200608T1830Z/
Palm Beach FL-
203 PM EDT Mon Jun 8 2020

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PALM BEACH COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Miami.

LAT...LON 2648 8019 2649 8032 2668 8033 2666 8007
TIME...MOT...LOC 1802Z 186DEG 11KT 2661 8024 

$$

Weinman

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 12:55 PM EDT	Special Weather Statement	MFL	Broward	35 min
Jun 8, 1:25 PM EDT	Special Weather Statement	MFL	Palm Beach	50 min
Jun 8, 2:12 PM EDT	Special Weather Statement	MFL	Palm Beach	48 min
Jun 8, 2:30 PM EDT	Special Weather Statement	MFL	Hendry	45 min
Jun 8, 2:34 PM EDT	Special Weather Statement	MFL	Martin	41 min
Jun 8, 3:47 PM EDT	Special Weather Statement	MFL	Glades	43 min

Nearby

Severe Thunderstorm Warnings in Florida, 2020 Every severe thunderstorm warning 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.