Alert archive / Florida / Tornado Warnings in 2023

Tornado Warning 9, NWS Melbourne, FL

April 27, 2023Brevard County, Florida

NWS Melbourne, FL issued this tornado warning at Apr 27, 2023, 7:24 PM EDT for Brevard County, Florida. It was in force for 21 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
Apr 27, 2023, 7:24 PM EDT (23:24 UTC)
Expired
Apr 27, 2023, 7:45 PM EDT
In force
21 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 50 km from the middle of the area, began a volume at 23:23 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.

IssuedProductOfficeLasted
Apr 27, 2:46 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 11.4 hours before the alert went out and 17 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, Cape Canaveral, FL at 12:00Z on 2023-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1461 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, Cape Canaveral, FL at 12:00Z on 2023-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939587897Sfc1 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
1461 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

456 
WFUS52 KMLB 272324
TORMLB
FLC009-280000-
/O.NEW.KMLB.TO.W.0009.230427T2324Z-230428T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
724 PM EDT Thu Apr 27 2023

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  Northeastern Brevard County in east central Florida...

* Until 800 PM EDT.
    
* At 724 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Merritt Island Wildlife Refuge, or near Playalinda
  Beach, and is nearly stationary.

  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
  northeastern Brevard County.

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 2851 8068 2859 8071 2865 8059 2853 8053
TIME...MOT...LOC 2324Z 259DEG 4KT 2856 8066 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Tollefsen
2 follow-up statements
330 
WWUS52 KMLB 272341
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
741 PM EDT Thu Apr 27 2023

FLC009-280000-
/O.CON.KMLB.TO.W.0009.000000T0000Z-230428T0000Z/
Brevard FL-
741 PM EDT Thu Apr 27 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR
NORTHEASTERN BREVARD COUNTY...
    
At 741 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Playalinda Beach, and is nearly stationary.

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
northeastern Brevard County.

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 2851 8068 2859 8071 2865 8059 2853 8053
TIME...MOT...LOC 2341Z 259DEG 4KT 2856 8064 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Tollefsen
405 
WWUS52 KMLB 272345
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
745 PM EDT Thu Apr 27 2023

FLC009-272355-
/O.CAN.KMLB.TO.W.0009.000000T0000Z-230428T0000Z/
Brevard FL-
745 PM EDT Thu Apr 27 2023

...THE TORNADO WARNING FOR NORTHEASTERN BREVARD COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
east central Florida.

LAT...LON 2851 8068 2859 8071 2865 8059 2853 8053
TIME...MOT...LOC 2343Z 259DEG 4KT 2856 8063 

$$

Tollefsen

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 2:57 PM EDTSpecial Weather StatementMLBFlagler33 min
Apr 27, 3:46 PM EDTSpecial Weather StatementMLBVolusia29 min
Apr 27, 4:21 PM EDTSpecial Weather StatementMLBSaint Lucie24 min
Apr 27, 4:40 PM EDTSpecial Weather StatementMLBSaint Lucie35 min
Apr 27, 4:40 PM EDTSpecial Weather StatementMLBSeminole35 min
Apr 27, 5:05 PM EDTAreal Flood AdvisoryMLBSaint Lucie115 min
Apr 27, 5:10 PM EDTSpecial Weather StatementMLBSaint Lucie35 min
Apr 27, 5:11 PM EDTSpecial Marine WarningMLB94 min
Apr 27, 5:39 PM EDTSpecial Weather StatementMLBSeminole36 min
Apr 27, 5:42 PM EDTSpecial Marine WarningMLB93 min
Apr 27, 5:51 PM EDTSpecial Weather StatementMLBBrevard24 min
Apr 27, 6:04 PM EDTSevere Thunderstorm WarningMLBBrevard41 min
Apr 27, 6:04 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Osceola41 min
Apr 27, 6:17 PM EDTAreal Flood AdvisoryMLBBrevard118 min
Apr 27, 6:22 PM EDTSpecial Weather StatementMLBSeminole38 min
Apr 27, 6:26 PM EDTTornado WarningMLBSeminole, Volusia23 min
Apr 27, 6:31 PM EDTTornado WarningMLBBrevard29 min
Apr 27, 6:40 PM EDTTornado WarningMLBBrevard35 min
Apr 27, 6:55 PM EDTSevere Thunderstorm WarningMLBOkeechobee50 min
Apr 27, 6:56 PM EDTSpecial Marine WarningMLB94 min
Apr 27, 6:57 PM EDTTornado WarningMLBBrevard33 min
Apr 27, 7:05 PM EDTTornado WarningMLBBrevard25 min
Apr 27, 7:11 PM EDTSpecial Marine WarningMLB64 min
Apr 27, 7:16 PM EDTSpecial Weather StatementMLBOsceola44 min
Apr 27, 7:29 PM EDTSevere Thunderstorm WarningMLBOsceola31 min
Apr 27, 7:44 PM EDTSpecial Weather StatementMLBBrevard31 min
Apr 27, 7:50 PM EDTSpecial Weather StatementMLBIndian River25 min
Apr 27, 7:53 PM EDTSpecial Weather StatementMLBOrange37 min

Nearby

Tornado Warnings in Florida, 2023Every tornado warning in 2023Tornadoes in 2023

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.