Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

August 25, 2012Miami-Dade County, Florida

NWS Miami, FL issued this special weather statement at Aug 25, 2012, 8:41 PM EDT for Miami-Dade County, Florida. It was in force for 34 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
Aug 25, 2012, 8:41 PM EDT (00:41 UTC)
Expired
Aug 25, 2012, 9:15 PM EDT
In force
34 min
Issued by
NWS Miami, FL

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 15 km from the middle of the area, began a volume at 00:42 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 00:00Z, 0.7 hours before the alert went out and 20 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 00:00Z on 2012-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3195 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
3195 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
101 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 Aug 25, 7:36 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Aug 25, 7:36 PM EDT, 1 hour 5 minutes before
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Hazardous weather outlook, Aug 25, 10:37 AM EDT, 10 hours 4 minutes before
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In the hours before

Special weather statement, Aug 25, 5:58 PM EDT, 2 hours 43 minutes before
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Special weather statement, Aug 25, 8:41 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
841 PM EDT SAT AUG 25 2012

FLZ072>074-172>174-260115-
COASTAL BROWARD COUNTY FL COASTAL MIAMI DADE COUNTY FL FAR SOUTH
MIAMI-DADE COUNTY FL INLAND MIAMI-DADE COUNTY FL METRO BROWARD COUNTY
FL METROPOLITAN MIAMI DADE FL
841 PM EDT SAT AUG 25 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR SOUTHEASTERN
BROWARD COUNTY...EASTERN MIAMI-DADE COUNTY...FOR GUSTY WINDS OF 45 TO
55 MPH...

* UNTIL 915 PM EDT

* AT 839 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF STRONG SHOWERS ALONG A LINE EXTENDING FROM 19 MILES EAST
  OF PORT EVERGLADES TO 6 MILES EAST OF NORTH BAY VILLAGE TO 4 MILES
  SOUTH OF MIAMI BEACH TO 7 MILES SOUTH OF KEY BISCAYNE TO 5 MILES
  NORTHEAST OF OCEAN REEF...AND MOVING WEST AT 25 MPH.

* THE LINE OF STORMS WILL AFFECT...
  KEY BISCAYNE...
  MIAMI BEACH...
  MIAMI...
  BAY HARBOR ISLANDS...
  ALLAPATTAH...
  AVENTURA...
  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.

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

LAT...LON 2580 8011 2567 8015 2566 8016 2568 8018
      2574 8017 2572 8024 2564 8026 2561 8030
      2557 8030 2553 8032 2540 8032 2541 8028
      2537 8028 2534 8034 2538 8052 2587 8047
      2595 8040 2600 8011
TIME...MOT...LOC 0040Z 098DEG 23KT 2603 7983 2586 8006
          2575 8012 2560 8021 2535 8022

GARCIA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 1:27 AM EDTSpecial Weather StatementMFLPalm Beach48 min
Aug 26, 2:15 AM EDTSpecial Weather StatementMFLMiami-Dade30 min
Aug 26, 2:51 AM EDTSpecial Weather StatementMFLMiami-Dade69 min
Aug 26, 4:09 AM EDTSpecial Weather StatementMFLMiami-Dade36 min
Aug 26, 4:59 AM EDTFlood WatchMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more63 hr
Aug 26, 5:21 AM EDTSpecial Marine WarningMFL24 min
Aug 26, 5:25 AM EDTSpecial Weather StatementMFLBroward35 min
Aug 26, 6:30 AM EDTSpecial Weather StatementMFLMiami-Dade30 min
Aug 26, 9:01 AM EDTSpecial Weather StatementMFLBroward, Miami-Dade59 min
Aug 26, 11:10 AM EDTSpecial Weather StatementMFLBroward, Miami-Dade, Palm Beach65 min
Aug 26, 12:40 PM EDTSpecial Weather StatementMFLMiami-Dade65 min
Aug 26, 1:12 PM EDTSpecial Marine WarningMFL48 min
Aug 26, 1:56 PM EDTSpecial Weather StatementMFLMiami-Dade64 min
Aug 26, 2:13 PM EDTSpecial Weather StatementMFLPalm Beach62 min
Aug 26, 3:31 PM EDTSpecial Weather StatementMFLPalm Beach59 min
Aug 26, 4:46 PM EDTSpecial Weather StatementMFLPalm Beach59 min
Aug 26, 4:56 PM EDTSpecial Marine WarningMFL94 min
Aug 26, 5:15 PM EDTSpecial Weather StatementMFLPalm Beach45 min
Aug 26, 5:48 PM EDTSpecial Weather StatementMFLPalm Beach42 min
Aug 26, 7:50 PM EDTSpecial Marine WarningMFL115 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.