Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 16, NWS Miami, FL

May 6, 2021Palm Beach County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 6, 2021, 6:08 PM EDT for Palm Beach County, Florida. It was in force for 67 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 6, 2021, 6:08 PM EDT (22:08 UTC)
Expired
May 6, 2021, 7:15 PM EDT
In force
67 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Palm Beach County, FL

The radar

The Melbourne radar (KMLB), 143 km from the middle of the area, began a volume at 22:09 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.

What was reported inside it

TimeReportWhereRemark
May 6, 6:26 PM EDTTSTM WND GST 612 Se Jupiter, FLMESONET STATION XOAK AT OAKES SUBSTATION REPORTED A 61 MPH WIND GUST AT 6:26 PM EDT.
May 6, 6:33 PM EDTHAIL 0.52 E Jupiter, FLREPORT FROM PUBLIC VIA MPING: HALF-INCH (0.50 IN.) HAIL NEAR JUPITER.
May 6, 6:39 PM EDTMARINE TSTM WIND 711 N Juno Beach, FLMESONET STATION XJUP AT JUNO BEACH PIER REPORTED A 71 MPH/62 KT WIND GUST AT 6:39 PM EDT.
May 6, 6:39 PM EDTTSTM WND GST 711 N Juno Beach, FLMESONET STATION XJUP AT JUNO BEACH PIER REPORTED A 71 MPH WIND GUST AT 6:39 PM EDT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 10.1 hours before the alert went out and 123 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2021-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 717 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2021-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
717 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
885 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

681 
WUUS52 KMFL 062208
SVRMFL
FLC099-062315-
/O.NEW.KMFL.SV.W.0016.210506T2208Z-210506T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
608 PM EDT Thu May 6 2021

The National Weather Service in Miami has issued a

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

* Until 715 PM EDT.

* At 607 PM EDT, a severe thunderstorm was located near Jonathan
  Dickinson State Park, or near Tequesta, moving east at 20 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Jupiter, Palm Beach Gardens, Tequesta, Juno Beach and North Palm
  Beach.

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 2683 8003 2688 8025 2696 8024 2696 8014
      2697 8014 2697 8003
TIME...MOT...LOC 2207Z 284DEG 18KT 2696 8017 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Weinman
2 follow-up statements
409 
WWUS52 KMFL 062257
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
657 PM EDT Thu May 6 2021

FLC099-062315-
/O.CON.KMFL.SV.W.0016.000000T0000Z-210506T2315Z/
Palm Beach FL-
657 PM EDT Thu May 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHEASTERN PALM BEACH COUNTY...

At 657 PM EDT, a severe thunderstorm was located over Juno Beach,
moving east at 20 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Jupiter, Palm Beach Gardens, Tequesta, Juno Beach and North Palm
Beach.

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 2683 8003 2688 8025 2696 8024 2696 8014
      2697 8014 2697 8003
TIME...MOT...LOC 2257Z 257DEG 16KT 2687 8005 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

Weinman
197 
WWUS52 KMFL 062313
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
713 PM EDT Thu May 6 2021

FLC099-062321-
/O.EXP.KMFL.SV.W.0016.000000T0000Z-210506T2315Z/
Palm Beach FL-
713 PM EDT Thu May 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PALM BEACH COUNTY
WILL EXPIRE AT 715 PM EDT...
                
The storm which prompted the warning has weakened below severe 
limits, though strong wind gusts of 50 to 55 mph and small hail 
remain possible with this thunderstorm.


LAT...LON 2683 8003 2688 8025 2696 8024 2696 8014
      2697 8014 2697 8003
TIME...MOT...LOC 2311Z 264DEG 23KT 2695 8017 

$$

Weinman

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 8:19 PM EDTSpecial Marine WarningMFL56 min
May 5, 8:39 PM EDTSpecial Weather StatementMFLPalm Beach51 min
May 6, 12:35 PM EDTSpecial Marine WarningMFL55 min
May 6, 1:22 PM EDTSpecial Marine WarningMFL37 min
May 6, 2:34 PM EDTSpecial Weather StatementMFLPalm Beach41 min
May 6, 3:53 PM EDTSpecial Marine WarningMFL97 min
May 6, 5:02 PM EDTSpecial Weather StatementMFLPalm Beach43 min
May 6, 5:23 PM EDTSpecial Marine WarningMFL37 min
May 6, 5:24 PM EDTSpecial Weather StatementMFLPalm Beach81 min
May 6, 5:34 PM EDTSevere Thunderstorm WarningMFLPalm Beach26 min
May 6, 5:48 PM EDTSpecial Weather StatementMFLPalm Beach42 min
May 6, 5:51 PM EDTSpecial Marine WarningMFL114 min
May 6, 5:53 PM EDTSevere Thunderstorm WarningMFLPalm Beach52 min
May 6, 5:56 PM EDTSpecial Marine WarningMFL64 min
May 6, 6:01 PM EDTSpecial Weather StatementMFLPalm Beach59 min
May 6, 6:08 PM EDTSpecial Weather StatementMFLBroward52 min
May 6, 6:32 PM EDTSevere Thunderstorm WarningMFLPalm Beach58 min
May 6, 6:41 PM EDTSpecial Marine WarningMFL94 min
May 6, 7:06 PM EDTSpecial Marine WarningMFL84 min
May 6, 7:10 PM EDTSpecial Weather StatementMFLMiami-Dade50 min
May 6, 7:10 PM EDTSpecial Weather StatementMFLMartin50 min
May 6, 7:28 PM EDTSpecial Weather StatementMFLPalm Beach77 min
May 6, 7:34 PM EDTAreal Flood AdvisoryMFLMiami-Dade116 min
May 6, 7:41 PM EDTSpecial Marine WarningMFL2 hr
May 6, 7:43 PM EDTAreal Flood AdvisoryMFLPalm Beach3 hr
May 6, 7:52 PM EDTSevere Thunderstorm WarningMFLMiami-Dade21 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.