Alert archive / Florida / Areal Flood Warnings in 2011

Areal Flood Warning 1, NWS Miami, FL

October 29, 2011Broward County, Palm Beach County, Florida

NWS Miami, FL issued this areal flood warning at Oct 29, 2011, 1:50 AM EDT for Broward County, Palm Beach County, Florida. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 29, 2011, 1:50 AM EDT (05:50 UTC)
Expired
Oct 29, 2011, 9:37 AM EDT
In force
8 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Flood severity
None

Counties Broward County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 88 km from the middle of the area, began a volume at 05:52 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, 5.8 hours before the alert went out and 66 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 2011-10-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2695 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 2011-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
2695 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
512 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
1.1
Supercell composite
8.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Oct 29, 1:40 AM EDT, 10 minutes earlier.

Area forecast discussion, Oct 29, 1:40 AM EDT, 10 minutes before
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Hazardous weather outlook, Oct 29, 1:50 AM EDT, 0 minutes before
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In the hours before

Special weather statement, Oct 28, 10:12 PM EDT, 3 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1012 PM EDT FRI OCT 28 2011

FLZ069>075-172>174-290315-
COASTAL BROWARD COUNTY FL COASTAL COLLIER COUNTY FL COASTAL MIAMI
DADE COUNTY FL FAR SOUTH MIAMI-DADE COUNTY FL INLAND BROWARD COUNTY
FL INLAND COLLIER COUNTY FL INLAND MIAMI-DADE COUNTY FL MAINLAND
MONROE FL METRO BROWARD COUNTY FL METROPOLITAN MIAMI DADE FL
1012 PM EDT FRI OCT 28 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHERN BROWARD COUNTY
  MIAMI-DADE COUNTY
  SOUTHEASTERN COLLIER COUNTY
  NORTHERN MAINLAND MONROE COUNTY

* UNTIL 1115 PM EDT

* AT 1005 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES
  WEST OF INTERSECTION ALLIGATOR ALLEY AND SR 29 TO 5 MILES NORTHWEST
  OF OCEAN REEF...AND MOVING NORTHEAST AT 25 TO 30 MPH.

* THE LINE OF STORMS WILL AFFECT...
  DADE-COLLIER TRAINING AIRPORT...
  BIG CYPRESS NATIONAL PRESERVE...
  MIAMI...
  DORAL...
  MIRAMAR...
  GOULDS...
  CUTLER BAY...
  PALMETTO BAY...
  AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

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.

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

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 2589 8014 2584 8019 2575 8019 2572 8025
      2560 8032 2550 8035 2540 8032 2524 8045
      2522 8049 2539 8088 2579 8128 2599 8153
      2617 8139 2612 8083 2598 8087 2608 8072
      2611 8061 2607 8012
TIME...MOT...LOC 0210Z 219DEG 24KT 2617 8139 2538 8032

BAXTER
Local storm report, Oct 28, 10:18 PM EDT, 3 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1018 PM EDT FRI OCT 28 2011

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

1012 PM     FLASH FLOOD      DELRAY BEACH            26.46N 80.09W
10/28/2011                   PALM BEACH         FL   LAW ENFORCEMENT

            DELRAY BEACH POLICE DEPARTMENT REPORTED FLOODED ROADWAYS.
            400 BLOCK OF S. CONGRESS AVE, LYNTON ROAD AND CONGRESS,
            600 BLOCK OF LINDELL BLVD, SOUTH BOUND MILITARY TRAIL AND
            ATLANTIC AVE AND CONGRESS.CARS ARE STRANDED AT THESE
            LOCATIONS.

&&

EBAUGH
Special weather statement, Oct 28, 10:56 PM EDT, 2 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1056 PM EDT FRI OCT 28 2011

FLZ070>074-172-173-290330-
COASTAL BROWARD COUNTY FL COASTAL MIAMI DADE COUNTY FL INLAND BROWARD
COUNTY FL INLAND COLLIER COUNTY FL INLAND MIAMI-DADE COUNTY FL METRO
BROWARD COUNTY FL METROPOLITAN MIAMI DADE FL
1056 PM EDT FRI OCT 28 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  BROWARD COUNTY
  NORTHERN MIAMI-DADE COUNTY
  EXTREME EAST CENTRAL COLLIER COUNTY

* UNTIL 1130 PM EDT

* AT 1051 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MICCOSUKEE
  SERVICE PLAZA TO UNIVERSITY OF MIAMI...AND MOVING NORTH AT 25 TO 30 MPH.

* THE LINE OF STORMS WILL AFFECT...
  UNIVERSITY OF MIAMI...
  DORAL...
  HIALEAH...
  EL PORTAL...
  CAROL CITY...
  AVENTURA...
  FORT LAUDERDALE...
  PEMBROKE PINES...
  WEST0N...
  AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

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

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 2590 8012 2585 8015 2588 8015 2577 8018
      2574 8020 2572 8024 2566 8026 2573 8050
      2593 8089 2633 8087 2632 8007
TIME...MOT...LOC 0254Z 185DEG 33KT 2623 8085 2571 8026

BAXTER
Special weather statement, Oct 28, 11:31 PM EDT, 2 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1131 PM EDT FRI OCT 28 2011

FLZ067-068-071-072-168-172-290430-
COASTAL BROWARD COUNTY FL COASTAL PALM BEACH COUNTY FL INLAND BROWARD
COUNTY FL INLAND PALM BEACH COUNTY FL METRO BROWARD COUNTY FL METRO
PALM BEACH COUNTY FL
1131 PM EDT FRI OCT 28 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  EASTERN BROWARD COUNTY
  SOUTHEASTERN PALM BEACH COUNTY

* UNTIL 1230 AM EDT

* AT 1128 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
  DETECTED A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM
  13 MILES NORTH OF MILE MARKER 30 ON ALLIGATOR ALLEY TO MIAMI GARDENS
  TO 10 MILES EAST OF NORTH BAY VILLAGE...AND MOVING NORTHEAST AT 30 MPH.

* THE LINE OF STORMS WILL AFFECT...
  SOUTHWEST RANCHES...
  COOPER CITY...
  HOLLYWOOD...
  DANIA BEACH...
  LAUDERHILL...
  CORAL SPRINGS...
  AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

THIS STORMS ARE ALSO DEVELOPING IN AN ENVIRONMENT FAVORABLE FOR FUNNEL
CLOUDS WITH COULD DEVELOP AT ANYTIME.

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 2626 8008 2615 8010 2613 8009 2601 8011
      2597 8012 2596 8032 2634 8057 2668 8036
      2664 8004
TIME...MOT...LOC 0331Z 215DEG 26KT 2636 8051 2600 8028
          2590 7997

BAXTER
Local storm report, Oct 29, 12:23 AM EDT, 1 hour 27 minutes before
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Local storm report, Oct 29, 12:31 AM EDT, 1 hour 19 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 28, 8:30 PM EDTSpecial Weather StatementMFLMonroe60 min
Oct 28, 8:59 PM EDTSpecial Marine WarningMFL61 min
Oct 28, 9:00 PM EDTAreal Flood AdvisoryMFLBroward, Palm Beach2 hr
Oct 28, 9:24 PM EDTSpecial Weather StatementMFLBroward51 min
Oct 28, 9:37 PM EDTSpecial Weather StatementMFLCollier, Miami-Dade, Monroe53 min
Oct 28, 10:12 PM EDTSpecial Weather StatementMFLCollier, Miami-Dade, Monroe63 min
Oct 28, 10:13 PM EDTFlash Flood WarningMFLBroward, Palm Beach4 hr
Oct 28, 10:23 PM EDTSpecial Marine WarningMFL97 min
Oct 28, 10:56 PM EDTSpecial Weather StatementMFLBroward34 min
Oct 28, 11:00 PM EDTFlood WatchMFLBroward, Collier, Glades, Hendry, Miami-Dade, Palm Beach29 hr
Oct 28, 11:10 PM EDTSpecial Marine WarningMFL65 min
Oct 28, 11:31 PM EDTSpecial Weather StatementMFLBroward59 min
Oct 28, 11:33 PM EDTFlash Flood WarningMFLPalm Beach3 hr
Oct 28, 11:36 PM EDTSpecial Marine WarningMFL54 min
Oct 28, 11:43 PM EDTSpecial Marine WarningMFL92 min
Oct 29, 12:00 AM EDTAreal Flood AdvisoryMFLCollier5 hr
Oct 29, 12:07 AM EDTSpecial Marine WarningMFL83 min
Oct 29, 1:25 AM EDTSpecial Marine WarningMFL95 min
Oct 29, 7:58 AM EDTSpecial Weather StatementMFLPalm Beach32 min
Oct 29, 4:45 PM EDTSmall Craft AdvisoryMFL4 days
Oct 29, 4:50 PM EDTAreal Flood AdvisoryMFLBroward115 min
Oct 29, 6:21 PM EDTAreal Flood AdvisoryMFLBroward114 min
Oct 29, 6:47 PM EDTAreal Flood AdvisoryMFLMiami-Dade118 min

Nearby

Areal Flood Warnings in Florida, 2011Every areal flood warning in 2011

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.