Alert archive / Florida / Tornado Warnings in 2023

Tornado Warning 7, NWS Miami, FL

April 21, 2023Broward County, Florida

NWS Miami, FL issued this tornado warning at Apr 21, 2023, 12:44 PM EDT for Broward County, Florida. It was in force for 5 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 21, 2023, 12:44 PM EDT (16:44 UTC)
Expired
Apr 21, 2023, 12:49 PM EDT
In force
5 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Observed
Hail
0.0 in

County Broward County, FL

The radar

The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 16:44 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

Miami, FL (KMFL), launched 12:00Z, 4.7 hours before the alert went out and 33 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, Miami, FL at 12:00Z on 2023-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 667 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, Miami, FL at 12:00Z on 2023-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
667 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
704 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

292 
WFUS52 KMFL 211644
TORMFL
FLC011-211715-
/O.NEW.KMFL.TO.W.0007.230421T1644Z-230421T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
1244 PM EDT Fri Apr 21 2023

The National Weather Service in Miami has issued a

* Tornado Warning for...
  Broward County in southeastern Florida...

* Until 115 PM EDT.

* At 1244 PM EDT, a reported waterspout was located just offshore
  near Dania Beach, or near Hollywood, and is slowly moving ashore.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported waterspout moving onshore.

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. Tree 
           damage is likely.

* Locations impacted include...
  Hollywood and Dania Beach. 

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 2608 8003 2600 8003 2600 8013 2606 8013
TIME...MOT...LOC 1644Z 078DEG 4KT 2604 8009 

TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN

$$

RAG
1 follow-up statement
763 
WWUS52 KMFL 211649
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
1249 PM EDT Fri Apr 21 2023

FLC011-211658-
/O.CAN.KMFL.TO.W.0007.000000T0000Z-230421T1715Z/
Broward FL-
1249 PM EDT Fri Apr 21 2023

...THE TORNADO WARNING FOR BROWARD 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.

LAT...LON 2608 8003 2600 8003 2600 8013 2606 8013
TIME...MOT...LOC 1647Z 078DEG 4KT 2604 8009 

$$

RAG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 12:34 PM EDTSpecial Marine WarningMFL26 min
Apr 21, 12:42 PM EDTSpecial Weather StatementMFLBroward33 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.