Alert archive / Florida / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Tampa Bay, FL

June 4, 2019Highlands County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 4, 2019, 4:01 PM EDT for Highlands County, Florida. It was in force for 29 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 4, 2019, 4:01 PM EDT (20:01 UTC)
Expired: Jun 4, 2019, 4:30 PM EDT
In force: 29 min
Issued by: NWS Tampa Bay, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Highlands County, FL

The radar

The Melbourne radar (KMLB), 96 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 125 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: 1214 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

468 
WUUS52 KTBW 042001
SVRTBW
FLC055-042030-
/O.NEW.KTBW.SV.W.0021.190604T2001Z-190604T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tampa Bay Area Ruskin FL
401 PM EDT Tue Jun 4 2019

The National Weather Service in Ruskin has issued a

* Severe Thunderstorm Warning for...
  Central Highlands County in south central Florida...

* Until 430 PM EDT.

* At 401 PM EDT, a severe thunderstorm was located near Lake
  Istokpoga, or 12 miles west of Basinger, moving south 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...
  Lake Placid, Sebring Regional Airport, Sylvan Shores, Lake
  Istokpoga, Archbold, Brighton, Cornwell, Lorida and Placid Lakes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2721 8116 2717 8117 2719 8142 2756 8132
      2755 8119 2753 8121 2751 8120 2749 8121
      2748 8118 2744 8114 2741 8114 2740 8113
      2740 8112 2738 8109 2721 8107
TIME...MOT...LOC 2001Z 359DEG 21KT 2743 8121 

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

TBW

1 follow-up statement

334 
WWUS52 KTBW 042026
SVSTBW

Severe Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
426 PM EDT Tue Jun 4 2019

FLC055-042036-
/O.EXP.KTBW.SV.W.0021.000000T0000Z-190604T2030Z/
Highlands FL-
426 PM EDT Tue Jun 4 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HIGHLANDS COUNTY WILL
EXPIRE AT 430 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 gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 2721 8116 2717 8117 2719 8142 2756 8132
      2755 8119 2753 8121 2751 8120 2749 8121
      2748 8118 2744 8114 2741 8114 2740 8113
      2740 8112 2738 8109 2721 8107
TIME...MOT...LOC 2026Z 000DEG 17KT 2740 8122 

$$

TBW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 3:55 PM EDT	Special Weather Statement	TBW	Highlands	35 min
Jun 4, 4:46 PM EDT	Special Weather Statement	TBW	DeSoto, Hardee	44 min
Jun 4, 5:32 PM EDT	Special Weather Statement	TBW	DeSoto	28 min

Nearby

Severe Thunderstorm Warnings in Florida, 2019 Every 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.