Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Tampa Bay, FL

June 24, 2021Lee County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 24, 2021, 3:16 PM EDT for Lee County, Florida. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 24, 2021, 3:16 PM EDT (19:16 UTC)
Expired
Jun 24, 2021, 3:45 PM EDT
In force
29 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Lee County, FL

The radar

The Tampa radar (KTBW), 141 km from the middle of the area, began a volume at 19:20 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.

What was reported inside it

TimeReportWhereRemark
Jun 24, 3:20 PM EDTHAIL 0.753 Wsw Fort Myers Villas, FLREPORT FROM MPING: DIME-SIZED HAIL (0.75 IN.). RADAR DATA SUPPORTS HAIL AT TIME OF REPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 7.3 hours before the alert went out and 141 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 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
19 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

937 
WUUS52 KTBW 241916
SVRTBW
FLC071-241945-
/O.NEW.KTBW.SV.W.0019.210624T1916Z-210624T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tampa Bay Area Ruskin FL
316 PM EDT Thu Jun 24 2021

The National Weather Service in Ruskin has issued a

* Severe Thunderstorm Warning for...
  Central Lee County in southwestern Florida...

* Until 345 PM EDT.

* At 316 PM EDT, a severe thunderstorm was located over Harlem 
  Heights, or 9 miles southeast of Cape Coral, moving west at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Cape Coral, Fort Myers, Saint James City, Whiskey Creek, Page Park,
  Page Field Airport, McGregor, Punta Rassa, Fort Myers Villas and
  Pine Manor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2641 8205 2644 8220 2665 8220 2661 8184
      2643 8185 2641 8202
TIME...MOT...LOC 1916Z 089DEG 17KT 2652 8194 

HAIL...<.75IN
WIND...60MPH
 
$$

TBW
2 follow-up statements
786 
WWUS52 KTBW 241931
SVSTBW

Severe Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
331 PM EDT Thu Jun 24 2021

FLC071-241945-
/O.CON.KTBW.SV.W.0019.000000T0000Z-210624T1945Z/
Lee FL-
331 PM EDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL LEE COUNTY...

At 330 PM EDT, a severe thunderstorm was located over Iona, or 8
miles south of Cape Coral, moving west at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Cape Coral, Fort Myers, Saint James City, Whiskey Creek, Page Park,
Page Field Airport, McGregor, Punta Rassa, Fort Myers Villas and Pine
Manor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2641 8205 2644 8220 2665 8220 2661 8184
      2643 8185 2641 8202
TIME...MOT...LOC 1930Z 088DEG 15KT 2652 8200 

HAIL...<.75IN
WIND...60MPH
 
$$

TBW
804 
WWUS52 KTBW 241946
SVSTBW

Severe Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
346 PM EDT Thu Jun 24 2021

FLC071-241956-
/O.EXP.KTBW.SV.W.0019.000000T0000Z-210624T1945Z/
Lee FL-
346 PM EDT Thu Jun 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LEE COUNTY HAS
EXPIRED...
                
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 allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 2641 8205 2644 8220 2665 8220 2661 8184
      2643 8185 2641 8202
TIME...MOT...LOC 1946Z 091DEG 19KT 2653 8210 

$$

TBW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 9:22 PM EDTSpecial Marine WarningTBW23 min
Jun 23, 9:32 PM EDTSpecial Weather StatementTBWPinellas28 min
Jun 23, 9:46 PM EDTSpecial Marine WarningTBW44 min
Jun 23, 9:53 PM EDTSpecial Marine WarningTBW52 min
Jun 23, 9:54 PM EDTSpecial Weather StatementTBWManatee36 min
Jun 24, 2:42 PM EDTSpecial Marine WarningTBW48 min
Jun 24, 3:39 PM EDTSpecial Marine WarningTBW66 min
Jun 24, 4:59 PM EDTSpecial Marine WarningTBW46 min
Jun 24, 5:45 PM EDTSpecial Marine WarningTBW60 min
Jun 24, 6:24 PM EDTSpecial Weather StatementTBWPasco66 min
Jun 24, 7:42 PM EDTAreal Flood AdvisoryTBWHillsborough93 min

Nearby

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