Alert archive / Florida / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Miami, FL

June 12, 2019Glades County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 12, 2019, 2:23 PM EDT for Glades County, Florida. It was in force for 37 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, 2019, 2:23 PM EDT (18:23 UTC)
Expired
Jun 12, 2019, 3:00 PM EDT
In force
37 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Glades County, FL

The radar

The Melbourne radar (KMLB), 131 km from the middle of the area, began a volume at 18:24 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

Tampa Bay, FL (KTBW), launched 12:00Z, 6.4 hours before the alert went out and 151 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, Tampa Bay, FL at 12:00Z on 2019-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1819 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, Tampa Bay, FL at 12:00Z on 2019-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
1819 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
790 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

549 
WUUS52 KMFL 121823
SVRMFL
FLC043-121900-
/O.NEW.KMFL.SV.W.0021.190612T1823Z-190612T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
223 PM EDT Wed Jun 12 2019

The National Weather Service in Miami has issued a

* Severe Thunderstorm Warning for...
  Central Glades County in southern Florida...

* Until 300 PM EDT.

* At 223 PM EDT, a severe thunderstorm was located near Palmdale,
  moving northeast at 25 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Palmdale, Lakeport and Brighton Seminole Reservation. 

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.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 2700 8091 2697 8095 2695 8100 2692 8100
      2687 8106 2680 8122 2693 8136 2712 8120
      2712 8117 2715 8117 2721 8112
TIME...MOT...LOC 1823Z 225DEG 21KT 2692 8123 

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

FELL
1 follow-up statement
639 
WWUS52 KMFL 121851
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
251 PM EDT Wed Jun 12 2019

FLC043-121900-
/O.EXP.KMFL.SV.W.0021.000000T0000Z-190612T1900Z/
Glades FL-
251 PM EDT Wed Jun 12 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GLADES COUNTY WILL
EXPIRE AT 300 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible.

LAT...LON 2700 8091 2697 8095 2695 8100 2692 8100
      2687 8106 2680 8122 2693 8136 2712 8120
      2712 8117 2715 8117 2721 8112
TIME...MOT...LOC 1850Z 225DEG 21KT 2703 8110 

$$

FELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 1:26 PM EDTSpecial Weather StatementMFLHendry49 min
Jun 12, 2:45 PM EDTSpecial Marine WarningMFL30 min
Jun 12, 3:10 PM EDTSpecial Weather StatementMFLBroward50 min
Jun 12, 3:28 PM EDTSpecial Weather StatementMFLMiami-Dade47 min
Jun 12, 4:11 PM EDTSpecial Weather StatementMFLBroward49 min
Jun 12, 4:41 PM EDTSpecial Weather StatementMFLPalm Beach49 min
Jun 12, 4:56 PM EDTSpecial Weather StatementMFLBroward49 min
Jun 12, 5:03 PM EDTSevere Thunderstorm WarningMFLPalm Beach27 min
Jun 12, 5:25 PM EDTSevere Thunderstorm WarningMFLPalm Beach35 min
Jun 12, 5:43 PM EDTSpecial Marine WarningMFL37 min
Jun 12, 5:53 PM EDTSpecial Weather StatementMFLPalm Beach37 min
Jun 12, 6:15 PM EDTSpecial Weather StatementMFLHendry45 min

Nearby

Severe Thunderstorm Warnings in Florida, 2019Every severe thunderstorm warning in 2019

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.