Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 13, NWS Miami, FL

April 26, 2020Glades County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Apr 26, 2020, 12:36 PM EDT for Glades County, Florida. It was in force for 39 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
Apr 26, 2020, 12:36 PM EDT (16:36 UTC)
Expired
Apr 26, 2020, 1:15 PM EDT
In force
39 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Glades County, FL

The radar

The Melbourne radar (KMLB), 140 km from the middle of the area, began a volume at 16:40 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, 4.6 hours before the alert went out and 144 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 2020-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2764 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, Tampa Bay, FL at 12:00Z on 2020-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939587897Sfc1 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
2764 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

342 
WUUS52 KMFL 261636
SVRMFL
FLC043-261715-
/O.NEW.KMFL.SV.W.0013.200426T1636Z-200426T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
1236 PM EDT Sun Apr 26 2020

The National Weather Service in Miami has issued a

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

* Until 115 PM EDT.

* At 1235 PM EDT, a severe thunderstorm was located near Muse, or 9
  miles west of Palmdale, moving east at 25 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...
  Moore Haven, Lakeport, Palmdale, Ortona and Muse. 

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 2690 8100 2689 8100 2678 8095 2679 8156
      2698 8156 2704 8133 2703 8133 2703 8127
      2706 8127 2710 8109
TIME...MOT...LOC 1635Z 261DEG 20KT 2691 8145 

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

Frye
3 follow-up statements
226 
WWUS52 KMFL 261656
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
1256 PM EDT Sun Apr 26 2020

FLC043-261715-
/O.CON.KMFL.SV.W.0013.000000T0000Z-200426T1715Z/
Glades FL-
1256 PM EDT Sun Apr 26 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR GLADES COUNTY...

At 1256 PM EDT, a severe thunderstorm was located over Palmdale,
moving east at 25 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...
Moore Haven, Lakeport, Palmdale, Ortona and Muse. 

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 2690 8100 2689 8100 2678 8095 2679 8156
      2698 8156 2704 8133 2703 8133 2703 8127
      2706 8127 2710 8109
TIME...MOT...LOC 1656Z 261DEG 20KT 2693 8132 

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

Frye
366 
WWUS52 KMFL 261706
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
106 PM EDT Sun Apr 26 2020

FLC043-261715-
/O.CON.KMFL.SV.W.0013.000000T0000Z-200426T1715Z/
Glades FL-
106 PM EDT Sun Apr 26 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR GLADES COUNTY...

At 106 PM EDT, a severe thunderstorm was located over Palmdale,
moving east at 30 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...
Moore Haven, Lakeport, Palmdale, Ortona and Muse. 

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 2678 8095 2679 8152 2699 8152 2704 8133
      2703 8127 2706 8127 2710 8109
TIME...MOT...LOC 1706Z 264DEG 25KT 2694 8126 

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

Frye
484 
WWUS52 KMFL 261712
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
112 PM EDT Sun Apr 26 2020

FLC043-261721-
/O.EXP.KMFL.SV.W.0013.000000T0000Z-200426T1715Z/
Glades FL-
112 PM EDT Sun Apr 26 2020

...THE SEVERE THUNDERSTORM WARNING FOR GLADES COUNTY WILL EXPIRE AT
115 PM EDT...
                
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 will be allowed to expire.  However small hail
and gusty winds are still possible with this thunderstorm.

LAT...LON 2678 8095 2679 8152 2699 8152 2704 8133
      2703 8127 2706 8127 2710 8109
TIME...MOT...LOC 1711Z 261DEG 20KT 2694 8123 

$$

Frye

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 8:42 PM EDTSpecial Marine WarningMFL48 min
Apr 25, 9:27 PM EDTSpecial Marine WarningMFL48 min
Apr 26, 12:28 AM EDTSpecial Marine WarningMFL47 min
Apr 26, 1:14 AM EDTSpecial Marine WarningMFL32 min
Apr 26, 1:44 AM EDTSpecial Marine WarningMFL46 min
Apr 26, 2:29 AM EDTSpecial Marine WarningMFL46 min
Apr 26, 10:46 AM EDTSpecial Weather StatementMFLGlades59 min
Apr 26, 10:53 AM EDTSpecial Marine WarningMFL67 min
Apr 26, 11:19 AM EDTSpecial Weather StatementMFLHendry56 min
Apr 26, 11:41 AM EDTSpecial Marine WarningMFL94 min
Apr 26, 11:49 AM EDTSpecial Weather StatementMFLGlades56 min
Apr 26, 11:57 AM EDTSpecial Marine WarningMFL63 min
Apr 26, 12:00 PM EDTSpecial Weather StatementMFLPalm Beach60 min
Apr 26, 12:04 PM EDTSevere Thunderstorm WarningMFLCollier, Hendry41 min
Apr 26, 12:23 PM EDTSpecial Weather StatementMFLCollier67 min
Apr 26, 12:29 PM EDTSevere Thunderstorm WarningMFLPalm Beach61 min
Apr 26, 12:33 PM EDTSpecial Marine WarningMFL87 min
Apr 26, 12:40 PM EDTSevere Thunderstorm WarningMFLCollier50 min
Apr 26, 12:44 PM EDTSpecial Weather StatementMFLHendry61 min
Apr 26, 12:55 PM EDTSpecial Marine WarningMFL65 min
Apr 26, 12:56 PM EDTSpecial Marine WarningMFL64 min
Apr 26, 1:10 PM EDTSpecial Weather StatementMFLHendry65 min
Apr 26, 1:23 PM EDTSpecial Marine WarningMFL97 min
Apr 26, 1:24 PM EDTSevere Thunderstorm WarningMFLBroward, Palm Beach33 min
Apr 26, 1:24 PM EDTSevere Thunderstorm WarningMFLCollier, Miami-Dade, Monroe41 min
Apr 26, 1:43 PM EDTSpecial Weather StatementMFLBroward77 min
Apr 26, 1:52 PM EDTSpecial Marine WarningMFL83 min
Apr 26, 1:54 PM EDTSpecial Marine WarningMFL67 min
Apr 26, 1:55 PM EDTSpecial Marine WarningMFL65 min
Apr 26, 2:04 PM EDTSpecial Weather StatementMFLCollier, Monroe41 min
Apr 26, 2:41 PM EDTSpecial Marine WarningMFL94 min
Apr 26, 2:55 PM EDTSpecial Weather StatementMFLMiami-Dade95 min
Apr 26, 2:57 PM EDTSevere Thunderstorm WarningMFLBroward34 min
Apr 26, 3:03 PM EDTSpecial Marine WarningMFL87 min
Apr 26, 3:29 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade2 hr
Apr 26, 3:29 PM EDTSpecial Marine WarningMFL91 min
Apr 26, 3:52 PM EDTSpecial Weather StatementMFLMiami-Dade53 min
Apr 26, 3:57 PM EDTSpecial Marine WarningMFL93 min

Nearby

Severe Thunderstorm Warnings in Florida, 2020Every 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.