Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 6, NWS Melbourne, FL

October 28, 2021Brevard County, Indian River County, Florida

NWS Melbourne, FL issued this tornado warning at Oct 28, 2021, 5:21 PM EDT for Brevard County, Indian River 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: Oct 28, 2021, 5:21 PM EDT (21:21 UTC)
Expired: Oct 28, 2021, 5:45 PM EDT
In force: 24 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Brevard County, FL, Indian River County, FL

The radar

The Melbourne radar (KMLB), 35 km from the middle of the area, began a volume at 21:24 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
Oct 28, 9:00 AM EDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.4 hours before the alert went out and 78 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1603 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

017 
WFUS52 KMLB 282121
TORMLB
FLC009-061-282145-
/O.NEW.KMLB.TO.W.0006.211028T2121Z-211028T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
521 PM EDT Thu Oct 28 2021

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  Northwestern Indian River County in east central Florida...
  South central Brevard County in east central Florida...

* Until 545 PM EDT.
    
* At 521 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Blue Cypress Lake, moving northeast at 30 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
  northwestern Indian River and south central Brevard Counties.

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 2773 8085 2782 8087 2794 8068 2783 8058
TIME...MOT...LOC 2121Z 237DEG 28KT 2778 8083 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Sedlock

1 follow-up statement

021 
WWUS52 KMLB 282135
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
535 PM EDT Thu Oct 28 2021

FLC061-282144-
/O.CAN.KMLB.TO.W.0006.000000T0000Z-211028T2145Z/
Indian River FL-
535 PM EDT Thu Oct 28 2021

...THE TORNADO WARNING FOR NORTHWESTERN INDIAN RIVER COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved into 
south Brevard County. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM EDT for east central
Florida.

LAT...LON 2783 8058 2782 8060 2782 8074 2783 8076
      2787 8077 2794 8068
TIME...MOT...LOC 2134Z 235DEG 29KT 2784 8073 

$$

FLC009-282145-
/O.CON.KMLB.TO.W.0006.000000T0000Z-211028T2145Z/
Brevard FL-
535 PM EDT Thu Oct 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR SOUTH
CENTRAL BREVARD COUNTY...
    
At 534 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles north of Blue Cypress Lake, moving northeast 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.

Locations impacted include...
Palm Bay.

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 2783 8058 2782 8060 2782 8074 2783 8076
      2787 8077 2794 8068
TIME...MOT...LOC 2134Z 235DEG 29KT 2784 8073 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Sedlock

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 28, 11:13 AM EDT	Special Weather Statement	MLB	Seminole	47 min
Oct 28, 11:27 AM EDT	Special Marine Warning	MLB		46 min
Oct 28, 1:14 PM EDT	Special Weather Statement	MLB	Lake	76 min
Oct 28, 1:38 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange	52 min
Oct 28, 2:14 PM EDT	Special Weather Statement	MLB	Lake, Volusia	61 min
Oct 28, 2:19 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole	41 min
Oct 28, 2:37 PM EDT	Special Marine Warning	MLB		83 min
Oct 28, 2:49 PM EDT	Special Marine Warning	MLB		41 min
Oct 28, 2:55 PM EDT	Special Weather Statement	MLB	Orange	50 min
Oct 28, 3:13 PM EDT	Special Weather Statement	MLB	Volusia	47 min
Oct 28, 3:29 PM EDT	Tornado Warning	MLB	Volusia	16 min
Oct 28, 3:52 PM EDT	Special Weather Statement	MLB	Brevard, Osceola, Seminole	53 min
Oct 28, 3:55 PM EDT	Special Marine Warning	MLB		65 min
Oct 28, 4:13 PM EDT	Special Marine Warning	MLB		41 min
Oct 28, 4:19 PM EDT	Special Weather Statement	MLB	Okeechobee	41 min
Oct 28, 4:59 PM EDT	Tornado Warning	MLB	Indian River, Osceola	31 min
Oct 28, 5:41 PM EDT	Special Marine Warning	MLB		2 hr
Oct 28, 5:43 PM EDT	Special Weather Statement	MLB	Indian River	47 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.