Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

August 24, 2012Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Aug 24, 2012, 12:31 PM EDT for Palm Beach County, Florida. It was in force for 29 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 24, 2012, 12:31 PM EDT (16:31 UTC)
Expired
Aug 24, 2012, 1:00 PM EDT
In force
29 min
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 122 km from the middle of the area, began a volume at 16:35 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, 4.5 hours before the alert went out and 96 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 2012-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2430 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 2012-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
2430 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
740 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
13 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 24, 7:33 AM EDT, 4 hours 58 minutes earlier.

Area forecast discussion, Aug 24, 7:33 AM EDT, 4 hours 58 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 24, 6:11 AM EDT, 6 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
611 AM EDT FRI AUG 24 2012

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
250215-
LAKE OKEECHOBEE-BISCAYNE BAY-
COASTAL WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL OUT 20 NM-
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM-
WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL EXTENDING FROM
20 NM TO 60 NM-
WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING FROM 20 NM
TO THE TERRITORIAL WATERS OF THE BAHAMAS-GLADES-HENDRY-
INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-INLAND COLLIER-
INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-METRO MIAMI DADE-
MAINLAND MONROE-COASTAL PALM BEACH-COASTAL BROWARD-
COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL OUT 20 NM-
COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL OUT 20 NM-
GULF WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM
20 TO 60 NM-
611 AM EDT FRI AUG 24 2012

...SCATTERED THUNDERSTORMS POSSIBLE INTERIOR TODAY...
...MODERATE RISK OF RIP CURRENTS EAST COAST...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

RIP CURRENTS: THERE IS A MODERATE RISK OF RIP CURRENTS ALONG THE
EAST COAST BEACHES DUE TO MODERATE EASTERLY WINDS.

THUNDERSTORMS: SCATTERED THUNDERSTORMS WILL BE POSSIBLE
TODAY...ESPECIALLY THROUGH THE AFTERNOON AND EVENING PERIODS OVER
THE INLAND LOCATIONS. FREQUENT LIGHTNING...GUSTY WINDS...AND
BRIEF HEAVY DOWNPOURS WILL REMAIN POSSIBLE IN THE HEAVIER STORMS
THAT DEVELOP.

WINDS: WIND GUSTS IN THE 35 TO 50 MPH RANGE WILL BE POSSIBLE IN
AND AROUND ANY OF THE STRONGER STORMS THAT DEVELOP THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

TROPICAL STORM ISAAC...CURRENTLY CENTERED SOUTH OF THE DOMINICAN
REPUBLIC...IS FORECAST TO CONTINUE ON A GENERAL NORTHWEST TRACK OVER
THE WEEKEND IN THE GENERAL DIRECTION OF FLORIDA. THERE IS
UNCERTAINTY WITH REGARDS TO THE EXACT TRACK AND INTENSITY OF ISAAC
AS IT MAKES ITS FINAL APPROACH AND MOVES INTO THE GENERAL AREA
SUNDAY NIGHT. BASED ON THE LATEST FORECAST...ISAAC WILL MAKE ITS
CLOSEST POINT OF APPROACH SUNDAY EVENING THROUGH MONDAY MORNING TO
EXTREME SOUTH AND SOUTHWEST FLORIDA. IF YOU HAVE NOT DONE SO
ALREADY...INTERESTS ARE ENCOURAGED TO BEGIN PREPARING NOW. VISIT
WWW.READY.GOV FOR DETAILED PREPAREDNESS PLANS AND INFORMATION.

OTHERWISE, THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS EACH
DAY MAINLY IN THE AFTERNOON AND EVENING HOURS. AT THIS TIME NO
ACTIVITY OUTSIDE OF THE ORDINARY IS EXPECTED WITH THE MAIN CONCERN
BEING LIGHTNING STRIKES.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

In the hours before

Special weather statement, Aug 24, 12:31 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1231 PM EDT FRI AUG 24 2012

FLZ068-168-241700-
COASTAL PALM BEACH COUNTY FL METRO PALM BEACH COUNTY FL
1231 PM EDT FRI AUG 24 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR EASTERN PALM BEACH
COUNTY...FOR GUSTY WINDS OF 45 TO 55 MPH...

* UNTIL 100 PM EDT

* AT 1230 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  STRONG THUNDERSTORM NEAR PALM BEACH...AND MOVING WEST AT 15 MPH.

* THE STORM WILL AFFECT...
  PALM BEACH...
  WEST PALM BEACH...
  GLEN RIDGE...
  PALM SPRINGS...
  HAVERHILL...
  GOLDEN LAKES...
  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.

LAT...LON 2662 8004 2661 8003 2659 8020 2678 8019
      2680 8003 2666 8003 2665 8003 2663 8003
TIME...MOT...LOC 1631Z 081DEG 15KT 2670 8003

KOB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 11:43 AM EDTSpecial Marine WarningMFL62 min
Aug 24, 1:24 PM EDTSpecial Marine WarningMFL66 min
Aug 24, 2:09 PM EDTSmall Craft AdvisoryMFL9 hr
Aug 24, 3:47 PM EDTSpecial Marine WarningMFL58 min
Aug 24, 3:57 PM EDTSpecial Marine WarningMFL63 min
Aug 24, 4:34 PM EDTSevere Thunderstorm WarningMFLMiami-Dade26 min
Aug 24, 4:45 PM EDTSpecial Marine WarningMFL2 hr
Aug 24, 5:06 PM EDTTropical Storm WatchMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more6 hr
Aug 24, 5:17 PM EDTSpecial Weather StatementMFLMiami-Dade43 min
Aug 24, 5:31 PM EDTRip Current StatementMFLBroward, Miami-Dade, Palm Beach50 hr
Aug 24, 5:52 PM EDTSpecial Weather StatementMFLBroward38 min
Aug 24, 6:40 PM EDTSpecial Marine WarningMFL2 hr
Aug 24, 7:40 PM EDTSpecial Weather StatementMFLPalm Beach50 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.