Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 2, NWS Melbourne, FL

February 6, 2020Lake County, Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Feb 6, 2020, 10:39 PM EST for Lake County, Volusia County, Florida. It was in force for 51 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: Feb 6, 2020, 10:39 PM EST (03:39 UTC)
Expired: Feb 6, 2020, 11:30 PM EST
In force: 51 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Lake County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 132 km from the middle of the area, began a volume at 03:39 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

Time	Report	Where	Remark
Feb 6, 11:25 PM EST	TSTM WND GST 45	Leesburg Airport, FL	PEAK WIND GUST OF 45 MPH/39 KT FROM THE WEST.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 6, 9:25 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 3.7 hours before the alert went out and 124 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: 106 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1234 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 315 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

053 
WUUS52 KMLB 070339
SVRMLB
FLC069-127-070430-
/O.NEW.KMLB.SV.W.0002.200207T0339Z-200207T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Melbourne FL
1039 PM EST Thu Feb 6 2020

The National Weather Service in Melbourne has issued a

* Severe Thunderstorm Warning for...
  Lake County in east central Florida...
  Northwestern Volusia County in east central Florida...

* Until 1130 PM EST.

* At 1038 PM EST, severe thunderstorms were located along a line 
  extending from near Fruitland to near Dade City, moving east at 
  60 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Leesburg, Eustis, Tavares, Lady Lake and Mount Dora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 AM EST for east central
Florida.

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 2896 8195 2896 8166 2905 8166 2906 8164
      2928 8164 2932 8168 2940 8142 2926 8142
      2926 8135 2879 8157 2878 8166 2858 8165
      2835 8170 2835 8179 2836 8179 2835 8196
TIME...MOT...LOC 0338Z 270DEG 61KT 2938 8166 2832 8217 

HAIL...<.75IN
WIND...70MPH
 
$$

Pendergrast

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 6, 9:52 PM EST	Special Weather Statement	MLB	Lake, Orange, Osceola, Seminole, Volusia	38 min
Feb 6, 10:53 PM EST	Special Weather Statement	MLB	Brevard, Orange, Seminole, Volusia	52 min
Feb 6, 11:18 PM EST	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole, Volusia	57 min
Feb 6, 11:45 PM EST	Special Marine Warning	MLB		90 min
Feb 6, 11:50 PM EST	Severe Thunderstorm Warning	MLB	Osceola	25 min
Feb 7, 12:07 AM EST	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola, Seminole, Volusia	53 min
Feb 7, 12:15 AM EST	Special Weather Statement	MLB	Brevard, Indian River, Okeechobee, Osceola	30 min
Feb 7, 12:50 AM EST	Special Marine Warning	MLB		85 min
Feb 7, 12:53 AM EST	Tornado Warning	MLB	Osceola	17 min
Feb 7, 12:54 AM EST	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola, Volusia	66 min
Feb 7, 1:33 AM EST	Special Weather Statement	MLB	Indian River	57 min
Feb 7, 1:45 AM EST	Severe Thunderstorm Warning	MLB	Brevard	45 min
Feb 7, 2:04 AM EST	Special Marine Warning	MLB		116 min
Feb 7, 3:57 AM EST	Special Marine Warning	MLB		93 min
Feb 7, 8:40 AM EST	Lake Wind Advisory	MLB	Lake, Orange, Osceola, Seminole, Volusia	6 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2020 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.