Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 31, NWS Miami, FL

June 23, 2021Collier County, Hendry County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 23, 2021, 12:22 PM EDT for Collier County, Hendry County, Florida. It was in force for 24 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 23, 2021, 12:22 PM EDT (16:22 UTC)
Expired: Jun 23, 2021, 12:46 PM EDT
In force: 24 min
Issued by: NWS Miami, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Collier County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 150 km from the middle of the area, began a volume at 16:21 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, 4.4 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 431 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 1206 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

443 
WUUS52 KMFL 231622
SVRMFL
FLC021-051-231700-
/O.NEW.KMFL.SV.W.0031.210623T1622Z-210623T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
1222 PM EDT Wed Jun 23 2021

The National Weather Service in Miami has issued a

* Severe Thunderstorm Warning for...
  Northwestern Collier County in southwestern Florida...
  West central Hendry County in southern Florida...

* Until 100 PM EDT.

* At 1222 PM EDT, a severe thunderstorm was located near Felda, or 7
  miles east of Lehigh Acres, and is nearly stationary.

  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...
  Felda and Keri. 

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 2662 8135 2644 8144 2648 8156 2658 8157
      2664 8156
TIME...MOT...LOC 1622Z 271DEG 3KT 2657 8151 

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

KELLY

2 follow-up statements

712 
WWUS52 KMFL 231641
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
1241 PM EDT Wed Jun 23 2021

FLC021-051-231700-
/O.CON.KMFL.SV.W.0031.000000T0000Z-210623T1700Z/
Collier FL-Hendry FL-
1241 PM EDT Wed Jun 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR NORTHWESTERN COLLIER AND WEST CENTRAL HENDRY COUNTIES...

At 1240 PM EDT, a severe thunderstorm was located near Felda, or 8
miles east of Lehigh Acres, and is nearly stationary.

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...
Felda and Keri. 

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 2662 8135 2644 8144 2649 8153 2657 8153
      2663 8148
TIME...MOT...LOC 1640Z 271DEG 3KT 2657 8149 

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

KELLY

314 
WWUS52 KMFL 231646
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
1246 PM EDT Wed Jun 23 2021

FLC021-051-231656-
/O.CAN.KMFL.SV.W.0031.000000T0000Z-210623T1700Z/
Collier FL-Hendry FL-
1246 PM EDT Wed Jun 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN COLLIER AND WEST
CENTRAL HENDRY COUNTIES IS CANCELLED...
                
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 has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Miami.

LAT...LON 2662 8135 2644 8144 2649 8153 2657 8153
      2663 8148
TIME...MOT...LOC 1646Z 271DEG 3KT 2657 8148 

$$

KELLY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:38 PM EDT	Special Marine Warning	MFL		40 min
Jun 22, 9:37 PM EDT	Special Weather Statement	MFL	Broward	53 min
Jun 22, 10:38 PM EDT	Special Weather Statement	MFL	Broward	52 min
Jun 22, 11:06 PM EDT	Areal Flood Advisory	MFL	Broward	114 min
Jun 22, 11:27 PM EDT	Special Weather Statement	MFL	Broward	48 min
Jun 23, 12:34 AM EDT	Special Marine Warning	MFL		56 min
Jun 23, 11:14 AM EDT	Special Weather Statement	MFL	Hendry	46 min
Jun 23, 11:45 AM EDT	Special Marine Warning	MFL		30 min
Jun 23, 11:58 AM EDT	Special Weather Statement	MFL	Hendry	47 min
Jun 23, 12:30 PM EDT	Special Weather Statement	MFL	Palm Beach	45 min
Jun 23, 12:48 PM EDT	Special Weather Statement	MFL	Hendry	42 min
Jun 23, 1:03 PM EDT	Special Weather Statement	MFL	Broward	42 min
Jun 23, 1:05 PM EDT	Special Weather Statement	MFL	Martin	40 min
Jun 23, 1:32 PM EDT	Special Weather Statement	MFL	Collier	43 min
Jun 23, 1:46 PM EDT	Special Weather Statement	MFL	Palm Beach	44 min
Jun 23, 1:47 PM EDT	Special Weather Statement	MFL	Broward	43 min
Jun 23, 2:11 PM EDT	Special Weather Statement	MFL	Collier	49 min
Jun 23, 2:25 PM EDT	Special Weather Statement	MFL	Monroe	50 min
Jun 23, 2:25 PM EDT	Special Weather Statement	MFL	Palm Beach	50 min
Jun 23, 2:29 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Monroe	31 min
Jun 23, 2:33 PM EDT	Special Marine Warning	MFL		42 min
Jun 23, 2:54 PM EDT	Special Weather Statement	MFL	Palm Beach	51 min
Jun 23, 3:02 PM EDT	Special Weather Statement	MFL	Monroe	43 min
Jun 23, 3:12 PM EDT	Special Weather Statement	MFL	Broward	48 min
Jun 23, 3:37 PM EDT	Special Marine Warning	MFL		68 min
Jun 23, 3:41 PM EDT	Special Weather Statement	MFL	Monroe	64 min
Jun 23, 4:37 PM EDT	Special Weather Statement	MFL	Monroe	53 min
Jun 23, 5:59 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	56 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.