Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

June 21, 2021Glades County, Florida

NWS Miami, FL issued this special weather statement at Jun 21, 2021, 9:05 PM EDT for Glades County, Florida. It was in force for 40 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 21, 2021, 9:05 PM EDT (01:05 UTC)
Expired
Jun 21, 2021, 9:45 PM EDT
In force
40 min
Issued by
NWS Miami, FL

County Glades County, FL

The radar

The Melbourne radar (KMLB), 138 km from the middle of the area, began a volume at 01:04 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 00:00Z, 1.1 hours before the alert went out and 149 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 00:00Z on 2021-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1236 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 00:00Z on 2021-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
1236 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

548 
WWUS82 KMFL 220105
SPSMFL

Special Weather Statement
National Weather Service Miami FL
905 PM EDT Mon Jun 21 2021
 
FLZ063-066-220145-
Hendry FL-Glades FL-
905 PM EDT Mon Jun 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HENDRY AND CENTRAL
GLADES COUNTIES UNTIL 945 PM EDT...

* At 905 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from Lakeport
  to Moore Haven. Movement was northeast at 15 mph.

* Small hail and winds in excess of 45 mph possible with these
  storms.

* Locations impacted include...
  Moore Haven, Lakeport, Brighton Seminole Reservation and Lake
  Hicpochee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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 2714 8106 2670 8098 2665 8119 2706 8125
TIME...MOT...LOC 0105Z 238DEG 15KT 2701 8113 2681 8109 

$$

Weinman

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 9:03 PM EDTSpecial Marine WarningMFL57 min
Jun 22, 1:52 PM EDTSpecial Weather StatementMFLMartin23 min
Jun 22, 3:00 PM EDTSpecial Weather StatementMFLPalm Beach45 min
Jun 22, 3:38 PM EDTSpecial Weather StatementMFLPalm Beach37 min
Jun 22, 5:27 PM EDTSpecial Weather StatementMFLGlades48 min
Jun 22, 6:09 PM EDTSpecial Weather StatementMFLBroward51 min
Jun 22, 7:38 PM EDTSpecial Weather StatementMFLPalm Beach37 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.