Alert archive / Florida / Tornado Warnings in 2023

Tornado Warning 3, NWS Melbourne, FL

April 16, 2023Martin County, Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at Apr 16, 2023, 5:58 PM EDT for Martin County, Saint Lucie County, Florida. It was in force for 20 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 16, 2023, 5:58 PM EDT (21:58 UTC)
Expired
Apr 16, 2023, 6:18 PM EDT
In force
20 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Martin County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 102 km from the middle of the area, began a volume at 21:56 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.0 hours before the alert went out and 136 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 2023-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 374 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 2023-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
374 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

123 
WFUS52 KMLB 162158
TORMLB
FLC085-111-162230-
/O.NEW.KMLB.TO.W.0003.230416T2158Z-230416T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
558 PM EDT Sun Apr 16 2023

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  Southeastern St. Lucie County in east central Florida...
  Northeastern Martin County in east central Florida...

* Until 630 PM EDT.
    
* At 558 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Walton, and is nearly stationary.

  HAZARD...Tornado and quarter size hail.

  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 dangerous storm will be near...
  North River Shores around 600 PM EDT.
  Jensen Beach around 610 PM EDT.
  Walton and Nettles Island around 630 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Hutchinson Island South.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2723 8033 2729 8034 2735 8019 2721 8014
TIME...MOT...LOC 2158Z 258DEG 1KT 2727 8029 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Leahy
2 follow-up statements
928 
WWUS52 KMLB 162209
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
609 PM EDT Sun Apr 16 2023

FLC085-111-162230-
/O.CON.KMLB.TO.W.0003.000000T0000Z-230416T2230Z/
St. Lucie FL-Martin FL-
609 PM EDT Sun Apr 16 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR
SOUTHEASTERN ST. LUCIE AND NORTHEASTERN MARTIN COUNTIES...
    
At 608 PM EDT, a severe thunderstorm capable of producing a tornado
was located over North River Shores, or over Jensen Beach, moving
southeast at 5 mph.

HAZARD...Tornado and quarter size hail.

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 dangerous storm will be near...
  Jensen Beach and North River Shores around 610 PM EDT.
  Nettles Island around 630 PM EDT.
  Stuart and Sewall's Point around 640 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Waveland.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2721 8014 2723 8033 2727 8034 2728 8034
      2731 8018
TIME...MOT...LOC 2208Z 297DEG 6KT 2725 8028 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Leahy
639 
WWUS52 KMLB 162218
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
618 PM EDT Sun Apr 16 2023

FLC085-111-162227-
/O.CAN.KMLB.TO.W.0003.000000T0000Z-230416T2230Z/
St. Lucie FL-Martin FL-
618 PM EDT Sun Apr 16 2023

...THE TORNADO WARNING FOR SOUTHEASTERN ST. LUCIE AND NORTHEASTERN
MARTIN COUNTIES IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However small hail, gusty winds, and heavy rain are still 
possible with this thunderstorm. A Severe Thunderstorm Warning 
remains in effect for the area.

LAT...LON 2721 8014 2723 8033 2727 8034 2728 8034
      2731 8018
TIME...MOT...LOC 2215Z 258DEG 1KT 2725 8028 

$$

Leahy

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 8:31 PM EDTSpecial Weather StatementMLBOrange29 min
Apr 15, 10:36 PM EDTSpecial Weather StatementMLBOkeechobee24 min
Apr 15, 11:35 PM EDTSpecial Weather StatementMLBIndian River, Okeechobee55 min
Apr 15, 11:40 PM EDTSpecial Marine WarningMLB65 min
Apr 16, 2:46 PM EDTSpecial Weather StatementMLBOrange29 min
Apr 16, 3:14 PM EDTSpecial Weather StatementMLBOsceola31 min
Apr 16, 3:17 PM EDTSpecial Weather StatementMLBBrevard28 min
Apr 16, 3:44 PM EDTSpecial Weather StatementMLBBrevard46 min
Apr 16, 3:46 PM EDTSpecial Weather StatementMLBIndian River29 min
Apr 16, 3:54 PM EDTSpecial Marine WarningMLB66 min
Apr 16, 4:13 PM EDTSpecial Weather StatementMLBIndian River32 min
Apr 16, 4:15 PM EDTAreal Flood AdvisoryMLBBrevard90 min
Apr 16, 4:26 PM EDTSpecial Weather StatementMLBSaint Lucie34 min
Apr 16, 4:35 PM EDTSpecial Marine WarningMLB55 min
Apr 16, 4:36 PM EDTSpecial Weather StatementMLBBrevard24 min
Apr 16, 4:38 PM EDTSevere Thunderstorm WarningMLBSaint Lucie52 min
Apr 16, 4:56 PM EDTSpecial Weather StatementMLBOkeechobee34 min
Apr 16, 5:09 PM EDTSpecial Weather StatementMLBIndian River36 min
Apr 16, 5:09 PM EDTSpecial Weather StatementMLBSaint Lucie36 min
Apr 16, 5:19 PM EDTSevere Thunderstorm WarningMLBSaint Lucie41 min
Apr 16, 5:22 PM EDTAreal Flood AdvisoryMLBBrevard83 min
Apr 16, 5:26 PM EDTSpecial Marine WarningMLB64 min
Apr 16, 5:30 PM EDTSevere Thunderstorm WarningMLBBrevard, Indian River45 min
Apr 16, 5:33 PM EDTTornado WarningMLBSaint Lucie27 min
Apr 16, 5:38 PM EDTTornado WarningMLBBrevard, Indian River18 min
Apr 16, 5:53 PM EDTSpecial Weather StatementMLBMartin37 min
Apr 16, 5:53 PM EDTSevere Thunderstorm WarningMLBMartin, Saint Lucie39 min
Apr 16, 6:10 PM EDTSpecial Marine WarningMLB95 min
Apr 16, 6:25 PM EDTAreal Flood AdvisoryMLBMartin, Saint Lucie4 hr
Apr 16, 6:25 PM EDTSpecial Weather StatementMLBVolusia35 min
Apr 16, 6:25 PM EDTSpecial Weather StatementMLBMartin35 min
Apr 16, 6:34 PM EDTSpecial Weather StatementMLBSaint Lucie26 min
Apr 16, 6:46 PM EDTSpecial Marine WarningMLB59 min
Apr 16, 6:59 PM EDTSpecial Marine WarningMLB2 hr
Apr 16, 7:13 PM EDTSpecial Marine WarningMLB47 min
Apr 16, 7:19 PM EDTSpecial Weather StatementMLBSeminole26 min
Apr 16, 7:28 PM EDTSpecial Marine WarningMLB62 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.