Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 2, NWS Miami, FL

April 10, 2018Broward County, Florida

NWS Miami, FL issued this tornado warning at Apr 10, 2018, 4:30 PM EDT for Broward County, Florida. It was in force for 11 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 10, 2018, 4:30 PM EDT (20:30 UTC)
Expired
Apr 10, 2018, 4:41 PM EDT
In force
11 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

County Broward County, FL

The radar

The Miami radar (KAMX), 62 km from the middle of the area, began a volume at 20:28 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.

What was reported inside it

TimeReportWhereRemark
Apr 10, 4:32 PM EDTTSTM WND GST 632 Ne Dania Beach, FLA THUNDERSTORM PRODUCED A WIND GUST OF 63 MPH AT A MESONET SITE AT PORT EVERGLADES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 8.5 hours before the alert went out and 35 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 2018-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 461 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2018-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.19395878Sfc1 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
461 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1249 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

561 
WFUS52 KMFL 102030
TORMFL
FLC011-102100-
/O.NEW.KMFL.TO.W.0002.180410T2030Z-180410T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
430 PM EDT TUE APR 10 2018

The National Weather Service in Miami has issued a

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

* Until 500 PM EDT.

* At 430 PM EDT, a confirmed tornado was located over Fort Lauderdale
  - Hollywood International Airport, or over Hollywood, moving east
  at 25 mph.

  HAZARD...Damaging tornado.

  SOURCE...Weather spotters confirmed tornado.

  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
  eastern Broward County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2610 8003 2604 8003 2605 8015 2609 8016
TIME...MOT...LOC 2030Z 287DEG 22KT 2607 8013 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ALM
1 follow-up statement
224 
WWUS52 KMFL 102041
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
441 PM EDT TUE APR 10 2018

FLC011-102050-
/O.CAN.KMFL.TO.W.0002.000000T0000Z-180410T2100Z/
Broward FL-
441 PM EDT TUE APR 10 2018

...THE TORNADO WARNING FOR EASTERN BROWARD COUNTY IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Miami.

Remember, a Severe Thunderstorm Warning still remains in effect for
East Central Broward County. 

LAT...LON 2610 8003 2604 8003 2605 8015 2609 8016
TIME...MOT...LOC 2039Z 287DEG 22KT 2605 8006 

$$

ALM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 3:56 AM EDTSmall Craft AdvisoryMFL60 hr
Apr 10, 1:40 PM EDTSpecial Weather StatementMFLGlades50 min
Apr 10, 2:06 PM EDTSpecial Marine WarningMFL54 min
Apr 10, 2:20 PM EDTSpecial Marine WarningMFL85 min
Apr 10, 2:24 PM EDTSpecial Weather StatementMFLGlades66 min
Apr 10, 2:25 PM EDTSpecial Weather StatementMFLBroward50 min
Apr 10, 2:53 PM EDTSpecial Weather StatementMFLBroward52 min
Apr 10, 2:56 PM EDTSpecial Marine WarningMFL49 min
Apr 10, 3:02 PM EDTSpecial Marine WarningMFL88 min
Apr 10, 3:04 PM EDTSpecial Weather StatementMFLPalm Beach56 min
Apr 10, 3:23 PM EDTSpecial Weather StatementMFLBroward, Palm Beach67 min
Apr 10, 3:36 PM EDTTornado Warning Tornado observedMFLBroward24 min
Apr 10, 3:43 PM EDTSevere Thunderstorm WarningMFLPalm Beach32 min
Apr 10, 3:46 PM EDTSpecial Marine WarningMFL44 min
Apr 10, 3:51 PM EDTSpecial Marine WarningMFL39 min
Apr 10, 3:58 PM EDTSpecial Weather StatementMFLPalm Beach32 min
Apr 10, 4:17 PM EDTSpecial Weather StatementMFLBroward58 min
Apr 10, 4:25 PM EDTSpecial Marine WarningMFL2 hr
Apr 10, 4:36 PM EDTSevere Thunderstorm WarningMFLBroward24 min
Apr 10, 5:05 PM EDTSpecial Weather StatementMFLMiami-Dade55 min
Apr 10, 5:37 PM EDTSpecial Marine WarningMFL23 min
Apr 10, 6:14 PM EDTSpecial Marine WarningMFL61 min

Nearby

Tornado Warnings in Florida, 2018Every tornado warning in 2018Tornadoes in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.