Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

August 27, 2012Broward County, Florida

NWS Miami, FL issued this special weather statement at Aug 27, 2012, 9:57 AM EDT for Broward County, Florida. It was in force for 18 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 27, 2012, 9:57 AM EDT (13:57 UTC)
Expired
Aug 27, 2012, 10:15 AM EDT
In force
18 min
Issued by
NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 83 km from the middle of the area, began a volume at 14:01 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, 2.0 hours before the alert went out and 59 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 2012-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2762 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 12:00Z on 2012-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
2762 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
480 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
157 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 27, 5:32 AM EDT, 4 hours 25 minutes earlier.

Area forecast discussion, Aug 27, 5:32 AM EDT, 4 hours 25 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
532 AM EDT MON AUG 27 2012

.SHORT TERM...
TROPICAL STORM ISAAC WAS LOCATED OVER SOUTHEAST GULF OF MEXICO
EARLY THIS MORNING. THE NATIONAL HURRICANE CENTER IS FORECASTING
ISAAC TO MOVE TO NORTHWEST INTO THE CENTRAL GULF OF MEXICO AND
AWAY FROM FLORIDA TODAY. THIS WILL ALLOW FOR THE WINDS TO SLOWLY
DECREASE OVER THE CWA TODAY...BUT STILL PRODUCE FREQUENT WIND
GUSTS ABOVE 35 MPH OVER MOST OF THE CWA. THE ONLY EXCEPTION TO
THIS IS ALONG COASTAL COLLIER...MAINLAND MONROE...AND SOUTHERN
MIAMI-DADE COUNTIES WHERE WINDS CLOSE TO TROPICAL STORM FORCE
ARE STILL POSSIBLE BUT REALLY NOT FORECAST EXCEPT OFFSHORE.
THE TROPICAL STORM WARNING HAS BEEN DROPPED AND A WIND ADVISORY
WILL BE ISSUED FOR MOST OF THE CWA FOR TODAY. THE ONLY EXCEPTION
IS TO KEEP THE TROPICAL STORM WARNING UP FOR COASTAL COLLIER...MAINLAND
MONROE...AND SOUTHERN MIAMI-DADE COUNTIES A BIT LONGER. THE
TORNADO WATCH IS ALSO IN EFFECT FOR ALL OF SOUTH FLORIDA THROUGH 9 AM
EDT THIS MORNING.

OUTER RAIN BANDS ASSOCIATED WITH ISAAC WILL ALSO CONTINUE TO
AFFECT SOUTH FLORIDA TODAY. SO WILL CONTINUE WITH LIKELY TO
CATEGORICAL POPS OVER THE CWA TODAY. THE RAIN BANDS COULD ALSO
PRODUCE HEAVY RAINFALL OVER SOUTH FLORIDA TODAY...DUE TO THE VERY
DEEP TROPICAL MOISTURE IN PLACE. THIS WILL ALSO LEAD TO POSSIBLE
FLOODING CONDITIONS OVER SOUTH FLORIDA TODAY...DUE TO THE GROUNDS
BEING SATURATED FROM THE HEAVY RAINFALL SINCE EARLY SUNDAY MORNING.
SO WILL CONTINUE THE FLOOD WATCH FOR ALL OF SOUTH FLORIDA UNTIL 8
PM THIS EVENING.

THE WEATHER WILL SLOWLY IMPROVE FOR TUESDAY INTO WEDNESDAY OVER
THE CWA...AND THE NATIONAL HURRICANE CENTER CONTINUES TO MOVE TROPICAL
STORM ISAAC NORTHWEST AND AWAY FROM SOUTH FLORIDA. SO WILL
CONTINUE THE SCATTERED POPS OVER THE CWA FOR TUESDAY INTO
WEDNESDAY...EXCEPT LIKELY POPS AROUND THE LAKE OKEECHOBEE ON TUESDAY.

.LONG TERM...
HIGH PRESSURE WILL THEN BUILD INTO FLORIDA FROM THE WESTERN
ATLANTIC WATERS FOR LATE THIS WEEK INTO NEXT WEEKEND. THIS WILL
ALLOW FOR THE STEERING FLOW TO BECOME EASTERLY OVER THE CWA...AND
ALLOW FOR THE THE SUMMER TIME WEATHER PATTERN TO RETURN TO THE
AREA. SO WILL CONTINUE TO SHOW THE TYPICAL DAY TIME SCATTERED
SHOWERS AND THUNDERSTORMS OF SOUTH FLORIDA FOR LATE THIS WEEK INTO
NEXT WEEKEND.

&&

.MARINE...
THE WINDS MOST OF THE CWA WATERS WILL CONTINUE TO SLOWLY DECREASE
FROM TROPICAL CONDITIONS THIS MORNING TO WINDY CONDITIONS BY THIS
AFTERNOON. THE ONLY EXCEPTION TO THIS IS THAT THE WINDS OVER PALM
BEACH WATERS AND LAKE OKEECHOBEE WATERS HAVE ALREADY DECREASED TO
WINDY CONDITIONS. THEREFORE...THE TROPICAL STORM WARNING REMAINS
IN PLACE OVER MOST OF THE LOCAL WATERS...EXCEPT FOR PALM BEACH AND
LAKE OKEECHOBEE WATERS WHERE THE TROPICAL STORM WARNING HAS BEEN
DROP AND REPLACE BY A SMALL CRAFT ADVISORY.

&&

.FIRE WEATHER...
THE RELATIVE HUMIDITIES OVER SOUTH FLORIDA WILL REMAIN WELL ABOVE
THE CRITICAL VALUES TODAY INTO MIDDLE OF THIS WEEK. SO NO PROBLEMS
WITH THE FIRE WEATHER FOR SOUTH FLORIDA THROUGH MIDDLE OF THIS
WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  90  80  90  77 / 70 50 50 30
FORT LAUDERDALE  89  80  90  79 / 70 50 50 30
MIAMI            88  80  90  79 / 70 50 50 30
NAPLES           90  78  90  78 / 80 50 50 30

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...FLOOD WATCH THROUGH THIS EVENING FOR COASTAL BROWARD-COASTAL
     COLLIER-COASTAL MIAMI DADE-COASTAL PALM BEACH-FAR SOUTH
     MIAMI DADE-GLADES-HENDRY-INLAND BROWARD-INLAND COLLIER-
     INLAND MIAMI DADE-INLAND PALM BEACH-MAINLAND MONROE-METRO
     BROWARD-METRO MIAMI DADE-METRO PALM BEACH.

     WIND ADVISORY UNTIL 6 PM EDT THIS EVENING FOR COASTAL BROWARD-
     COASTAL MIAMI DADE-COASTAL PALM BEACH-GLADES-HENDRY-INLAND
     BROWARD-INLAND COLLIER-INLAND MIAMI DADE-INLAND PALM BEACH-
     METRO BROWARD-METRO MIAMI DADE-METRO PALM BEACH.

     TROPICAL STORM WARNING FOR COASTAL COLLIER-FAR SOUTH MIAMI DADE-
     MAINLAND MONROE.

AM...TROPICAL STORM WARNING FOR BISCAYNE BAY-COASTAL WATERS FROM
     DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM-WATERS FROM
     DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING FROM 20 NM TO
     THE TERRITORIAL WATERS OF THE BAHAMAS.

     SMALL CRAFT ADVISORY UNTIL 2 AM EDT TUESDAY FOR COASTAL WATERS
     FROM JUPITER INLET TO DEERFIELD BEACH, FL OUT 20 NM-LAKE
     OKEECHOBEE-WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL
     EXTENDING FROM 20 NM TO 60 NM.

GM...TROPICAL STORM WARNING FOR 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.

&&

DISCUSSION/MARINE/FIRE...54/BNB
AVIATION/RADAR...15/JR
Hazardous weather outlook, Aug 27, 9:39 AM EDT, 18 minutes before
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In the hours before

Special weather statement, Aug 27, 8:07 AM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
807 AM EDT MON AUG 27 2012

FLZ067-071-072-271300-
INLAND BROWARD COUNTY FL INLAND PALM BEACH COUNTY FL METRO BROWARD
COUNTY FL
807 AM EDT MON AUG 27 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR NORTHERN BROWARD
COUNTY...CENTRAL PALM BEACH COUNTY...FOR

* UNTIL 900 AM EDT

* AT 805 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF HEAVY SHOWERS WITH ISOLATED THUNDERSTORMS EXTENDING
  NORTHWEST ACROSS PALM BEACH COUNTY.

* THE STORM WILL AFFECT...
  BELLE GLADE...
  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.

FUNNEL CLOUDS OCCASIONALLY TOUCH DOWN AND PRODUCE TORNADOES. MOVE
INDOORS AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE A SAFE DISTANCE BETWEEN OTHER VEHICLES.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM EDT MONDAY MORNING FOR
SOUTHERN FLORIDA.

LAT...LON 2624 8042 2676 8076 2678 8074 2677 8071
      2675 8071 2676 8069 2681 8070 2689 8062
      2695 8062 2696 8061 2696 8046 2628 8021
TIME...MOT...LOC 1206Z 164DEG 33KT 2635 8035
Special weather statement, Aug 27, 9:52 AM EDT, 5 minutes before
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Special weather statement, Aug 27, 9:57 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 8:16 PM EDTSpecial Weather StatementMFLBroward44 min
Aug 26, 8:38 PM EDTAreal Flood AdvisoryMFLBroward, Palm Beach112 min
Aug 26, 9:07 PM EDTSpecial Weather StatementMFLPalm Beach23 min
Aug 26, 9:10 PM EDTRiver Flood WarningMFLGlades6 days
Aug 26, 9:23 PM EDTTornado WarningMFLPalm Beach22 min
Aug 26, 9:30 PM EDTAreal Flood AdvisoryMFLPalm Beach2 hr
Aug 26, 9:38 PM EDTSpecial Weather StatementMFLPalm Beach37 min
Aug 26, 9:49 PM EDTTornado WarningMFLBroward, Miami-Dade7 min
Aug 26, 10:13 PM EDTSpecial Weather StatementMFLBroward62 min
Aug 26, 10:17 PM EDTSpecial Marine WarningMFL118 min
Aug 26, 10:18 PM EDTSpecial Weather StatementMFLPalm Beach57 min
Aug 26, 10:49 PM EDTFlash Flood WarningMFLPalm Beach3 hr
Aug 26, 11:21 PM EDTSpecial Weather StatementMFLBroward, Palm Beach54 min
Aug 26, 11:40 PM EDTAreal Flood AdvisoryMFLBroward, Palm Beach2 hr
Aug 27, 12:06 AM EDTAreal Flood AdvisoryMFLPalm Beach114 min
Aug 27, 12:13 AM EDTSpecial Marine WarningMFL2 hr
Aug 27, 12:38 AM EDTSpecial Weather StatementMFLPalm Beach52 min
Aug 27, 1:19 AM EDTSpecial Weather StatementMFLPalm Beach56 min
Aug 27, 1:51 AM EDTFlash Flood WarningMFLPalm Beach9 hr
Aug 27, 1:53 AM EDTSpecial Weather StatementMFLGlades, Palm Beach52 min
Aug 27, 2:08 AM EDTSpecial Marine WarningMFL112 min
Aug 27, 2:10 AM EDTAreal Flood AdvisoryMFLPalm Beach110 min
Aug 27, 5:49 AM EDTSmall Craft AdvisoryMFL38 hr
Aug 27, 5:49 AM EDTWind AdvisoryMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more15 hr
Aug 27, 6:23 AM EDTRip Current StatementMFLBroward, Collier, Miami-Dade, Palm Beach19 hr
Aug 27, 6:30 AM EDTAreal Flood AdvisoryMFLPalm Beach2 hr
Aug 27, 6:36 AM EDTSpecial Marine WarningMFL24 min
Aug 27, 6:38 AM EDTSpecial Marine WarningMFL2 hr
Aug 27, 8:07 AM EDTSpecial Weather StatementMFLPalm Beach53 min
Aug 27, 8:26 AM EDTAreal Flood AdvisoryMFLGlades, Palm Beach42 min
Aug 27, 8:38 AM EDTSpecial Marine WarningMFL52 min
Aug 27, 9:21 AM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade, Palm Beach114 min
Aug 27, 9:52 AM EDTSpecial Weather StatementMFLBroward23 min
Aug 27, 11:10 AM EDTFlash Flood WarningMFLBroward, Palm Beach3 hr
Aug 27, 11:25 AM EDTSpecial Weather StatementMFLBroward, Miami-Dade, Palm Beach65 min
Aug 27, 11:56 AM EDTSpecial Marine WarningMFL2 hr
Aug 27, 12:04 PM EDTGale WarningMFL9 hr
Aug 27, 12:06 PM EDTAreal Flood AdvisoryMFLMiami-Dade114 min
Aug 27, 12:24 PM EDTCoastal Flood StatementMFLCollier13 hr
Aug 27, 1:05 PM EDTSpecial Weather StatementMFLBroward, Miami-Dade, Palm Beach25 min
Aug 27, 1:08 PM EDTSevere Thunderstorm WarningMFLPalm Beach37 min
Aug 27, 1:28 PM EDTSpecial Weather StatementMFLBroward, Palm Beach62 min
Aug 27, 1:40 PM EDTFlash Flood WarningMFLBroward, Palm Beach3 hr
Aug 27, 1:47 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade118 min
Aug 27, 2:14 PM EDTSpecial Marine WarningMFL91 min
Aug 27, 2:32 PM EDTSpecial Weather StatementMFLBroward, Palm Beach58 min
Aug 27, 2:56 PM EDTSevere Thunderstorm WarningMFLPalm Beach12 min
Aug 27, 3:01 PM EDTSpecial Weather StatementMFLCollier29 min
Aug 27, 3:19 PM EDTSpecial Marine WarningMFL116 min
Aug 27, 4:39 PM EDTAreal Flood WarningMFLBroward, Palm Beach6 hr
Aug 27, 5:11 PM EDTSpecial Marine WarningMFL94 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.