Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 8, NWS Miami, FL

May 27, 2018Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at May 27, 2018, 8:23 AM EDT for Miami-Dade County, Florida. It was in force for 22 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
May 27, 2018, 8:23 AM EDT (12:23 UTC)
Expired
May 27, 2018, 8:45 AM EDT
In force
22 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 12 km from the middle of the area, began a volume at 12:25 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, 0.4 hours before the alert went out and 19 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 2018-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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 2018-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
92 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
866 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

196 
WFUS52 KMFL 271223
TORMFL
FLC086-271245-
/O.NEW.KMFL.TO.W.0008.180527T1223Z-180527T1245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
823 AM EDT SUN MAY 27 2018

The National Weather Service in Miami has issued a

* Tornado Warning for...
  Miami-Dade County in southeastern Florida...

* Until 845 AM EDT.
    
* At 823 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Palmetto Bay, or near Black Point, moving north at
  25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

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

* Locations impacted include...
  Coral Gables, South Miami, Kendall, Pinecrest and West Miami. 

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

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 2560 8027 2557 8031 2572 8037 2575 8030
TIME...MOT...LOC 1223Z 165DEG 20KT 2561 8030 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

ALM
1 follow-up statement
233 
WWUS52 KMFL 271235
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
835 AM EDT SUN MAY 27 2018

FLC086-271245-
/O.EXP.KMFL.TO.W.0008.000000T0000Z-180527T1245Z/
Miami-Dade FL-
835 AM EDT SUN MAY 27 2018

...THE TORNADO WARNING FOR MIAMI-DADE COUNTY WILL EXPIRE AT 845 AM
EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

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

LAT...LON 2560 8027 2557 8031 2572 8037 2575 8030
TIME...MOT...LOC 1235Z 165DEG 20KT 2567 8032 

$$

ALM

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 1:13 AM EDTSpecial Weather StatementMFLCollier47 min
May 27, 1:50 AM EDTSpecial Marine WarningMFL40 min
May 27, 2:24 AM EDTSpecial Marine WarningMFL36 min
May 27, 3:03 AM EDTSpecial Marine WarningMFL87 min
May 27, 4:05 AM EDTSpecial Marine WarningMFL55 min
May 27, 4:13 AM EDTSpecial Weather StatementMFLBroward62 min
May 27, 4:53 AM EDTSpecial Weather StatementMFLCollier67 min
May 27, 5:00 AM EDTSpecial Marine WarningMFL33 min
May 27, 8:22 AM EDTSpecial Weather StatementMFLMiami-Dade23 min
May 27, 8:51 AM EDTSpecial Weather StatementMFLCollier39 min
May 27, 9:07 AM EDTSpecial Weather StatementMFLBroward53 min
May 27, 9:08 AM EDTSpecial Weather StatementMFLMonroe52 min
May 27, 9:30 AM EDTSpecial Weather StatementMFLMiami-Dade30 min
May 27, 9:38 AM EDTSevere Thunderstorm WarningMFLMiami-Dade37 min
May 27, 10:05 AM EDTSpecial Weather StatementMFLPalm Beach40 min
May 27, 3:06 PM EDTSpecial Marine WarningMFL54 min
May 27, 3:15 PM EDTSpecial Weather StatementMFLPalm Beach45 min
May 27, 5:37 PM EDTSpecial Weather StatementMFLPalm Beach53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.