Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

May 24, 2012Miami-Dade County, Florida

NWS Miami, FL issued this special weather statement at May 24, 2012, 11:29 AM EDT for Miami-Dade County, Florida. It was in force for 46 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 24, 2012, 11:29 AM EDT (15:29 UTC)
Expired
May 24, 2012, 12:15 PM EDT
In force
46 min
Issued by
NWS Miami, FL

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 16 km from the middle of the area, began a volume at 15:32 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

Tampa Bay, FL (KTBW), launched 12:00Z, 3.5 hours before the alert went out and 312 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, Tampa Bay, FL at 12:00Z on 2012-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 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, Tampa Bay, FL at 12:00Z on 2012-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
917 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
849 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this special weather statement went out at May 24, 8:56 AM EDT, 2 hours 33 minutes earlier.

Area forecast discussion, May 24, 8:56 AM EDT, 2 hours 33 minutes before
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Hazardous weather outlook, May 24, 9:51 AM EDT, 1 hour 38 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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In the hours before

Local storm report, May 24, 10:40 AM EDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1040 AM EDT THU MAY 24 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1015 AM     FLOOD            DORAL                   25.84N 80.36W
05/24/2012                   MIAMI-DADE         FL   NWS EMPLOYEE

            STREET FLOODING WITH WATER DEPTH OF AT LEAST 6 INCHES
            ALONG PORTIONS OF NW 107TH AVENUE BETWEEN 45TH AND 58TH
            STREETS.

&&

MJB
Special weather statement, May 24, 11:29 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1129 AM EDT THU MAY 24 2012

FLZ073-074-173-241615-
COASTAL MIAMI DADE COUNTY FL INLAND MIAMI-DADE COUNTY FL METROPOLITAN
MIAMI DADE FL
1129 AM EDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  CENTRAL METRO MIAMI-DADE COUNTY

* UNTIL 1215 PM EDT

* AT 1123 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES
  EAST OF PINECREST TO PRINCETON...AND MOVING NORTHWEST AT 5 MPH.

* THE LINE OF STORMS WILL AFFECT...
  KEY BISCAYNE...
  PRINCETON...
  CUTLER BAY...
  NARANJA...
  CUTLER RIDGE...
  AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE GUSTY WINDS OF 45 TO 55 MPH. THESE WINDS
CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED
SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM
PASSES.

ALSO...THIS LINE OF STORMS ARE DEVELOPING IN AN ENVIRONMENT
FAVORABLE FOR FUNNEL CLOUDS.

RESIDENTS NEAR THE PATH OF SHOULD REMAIN ON THE ALERT FOR ADDITIONAL
STATEMENTS AND POSSIBLE WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

LAT...LON 2567 8016 2568 8018 2572 8017 2574 8017
      2574 8020 2572 8024 2564 8026 2561 8030
      2557 8030 2553 8031 2553 8032 2546 8033
      2549 8056 2576 8045 2576 8019 2574 8016
TIME...MOT...LOC 1528Z 154DEG 4KT 2566 8023 2550 8037

CWC

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 9:25 AM EDTAreal Flood AdvisoryMFLMiami-Dade4 hr
May 24, 10:49 AM EDTSpecial Marine WarningMFL116 min
May 24, 11:00 AM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade2 hr
May 24, 11:46 AM EDTSevere Thunderstorm WarningMFLMiami-Dade34 min
May 24, 12:33 PM EDTSpecial Marine WarningMFL117 min
May 24, 12:46 PM EDTSevere Thunderstorm WarningMFLMiami-Dade44 min
May 24, 12:57 PM EDTAreal Flood AdvisoryMFLBroward, Palm Beach2 hr
May 24, 1:13 PM EDTHigh Wind WarningMFLBroward, Miami-Dade103 min
May 24, 1:19 PM EDTGale WarningMFL3 hr
May 24, 4:43 PM EDTSmall Craft AdvisoryMFL5 hr
May 24, 6:06 PM EDTSpecial Marine WarningMFL70 min

Nearby

Special Weather Statements in Florida, 2012Every special weather statement in 2012

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.