Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 2, NWS Melbourne, FL

July 7, 2021Lake County, Florida

NWS Melbourne, FL issued this tornado warning at Jul 7, 2021, 4:16 AM EDT for Lake County, Florida. It was in force for 18 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: Jul 7, 2021, 4:16 AM EDT (08:16 UTC)
Expired: Jul 7, 2021, 4:34 AM EDT
In force: 18 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Lake County, FL

The radar

The Melbourne radar (KMLB), 137 km from the middle of the area, began a volume at 08:16 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 6, 10:37 PM EDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.3 hours before the alert went out and 132 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: 1025 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

634 
WFUS52 KMLB 070816
TORMLB
FLC069-070845-
/O.NEW.KMLB.TO.W.0002.210707T0816Z-210707T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
416 AM EDT Wed Jul 7 2021

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  West central Lake County in east central Florida...

* Until 445 AM EDT.
    
* At 415 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Emeralda, moving north at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  west central Lake County, including the following locations...
  Silver Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 2877 8170 2877 8186 2896 8194 2896 8170
TIME...MOT...LOC 0815Z 159DEG 29KT 2896 8187 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Sedlock

2 follow-up statements

870 
WWUS52 KMLB 070822
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
422 AM EDT Wed Jul 7 2021

FLC069-070845-
/O.CON.KMLB.TO.W.0002.000000T0000Z-210707T0845Z/
Lake FL-
422 AM EDT Wed Jul 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM EDT FOR WEST
CENTRAL LAKE COUNTY...
    
At 422 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Lake Griffin, moving northwest at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Eustis, Emeralda, Lisbon, Mid Florida Lakes and Lake Yale. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 2886 8170 2885 8189 2896 8194 2896 8170
TIME...MOT...LOC 0822Z 147DEG 22KT 2887 8183 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Sedlock

843 
WWUS52 KMLB 070834
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
434 AM EDT Wed Jul 7 2021

FLC069-070844-
/O.CAN.KMLB.TO.W.0002.000000T0000Z-210707T0845Z/
Lake FL-
434 AM EDT Wed Jul 7 2021

...THE TORNADO WARNING FOR WEST CENTRAL LAKE COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 AM EDT for east central
Florida.

LAT...LON 2886 8170 2885 8189 2896 8194 2896 8170
TIME...MOT...LOC 0834Z 159DEG 29KT 2896 8187 

$$

Sedlock

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:12 AM EDT	Special Marine Warning	MLB		63 min
Jul 7, 4:26 PM EDT	Special Weather Statement	MLB	Lake	34 min

Nearby

Tornado Warnings in Florida, 2021 Every tornado warning in 2021 Tornadoes 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.