Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

May 30, 2021Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at May 30, 2021, 4:03 PM EDT for Palm Beach County, Florida. It was in force for 57 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
May 30, 2021, 4:03 PM EDT (20:03 UTC)
Expired
May 30, 2021, 5:00 PM EDT
In force
57 min
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 105 km from the middle of the area, began a volume at 20:06 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, 8.1 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2021-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 988 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2021-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.193958Sfc1 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
988 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

694 
WWUS82 KMFL 302003
SPSMFL

Special Weather Statement
National Weather Service Miami FL
403 PM EDT Sun May 30 2021
 
FLZ067-302100-
Inland Palm Beach County FL-
403 PM EDT Sun May 30 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PALM BEACH COUNTY UNTIL
500 PM EDT...

* At 403 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm 7 miles west of Loxahatchee NWR, or
  17 miles southwest of Wellington, moving north at 15 mph.

* Winds in excess of 45 mph possible with this storm.

* Locations impacted include...
  Wellington, Lion Country Safari Park, Loxahatchee NWR and
  Loxahatchee Groves.

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.

Frequent cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.

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 2645 8028 2643 8056 2672 8056 2671 8026
TIME...MOT...LOC 2003Z 182DEG 12KT 2647 8045 

$$

AR

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 3:26 PM EDTSpecial Weather StatementMFLBroward49 min
May 30, 4:05 PM EDTSpecial Weather StatementMFLCollier40 min
May 30, 5:07 PM EDTSpecial Weather StatementMFLMonroe38 min
May 30, 5:24 PM EDTSevere Thunderstorm WarningMFLBroward, Collier36 min
May 30, 5:56 PM EDTSpecial Weather StatementMFLHendry49 min
May 30, 7:28 PM EDTSpecial Weather StatementMFLMonroe47 min
May 30, 7:45 PM EDTSpecial Marine WarningMFL45 min
May 30, 7:46 PM EDTSpecial Weather StatementMFLPalm Beach59 min
May 30, 7:59 PM EDTSevere Thunderstorm WarningMFLPalm Beach31 min

Nearby

Special Weather Statements in Florida, 2021Every 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.