Alert archive / Florida / Flash Flood Warnings in 2011

Flash Flood Warning 4, NWS Miami, FL

October 30, 2011Miami-Dade County, Florida

NWS Miami, FL issued this flash flood warning at Oct 30, 2011, 8:14 PM EDT for Miami-Dade County, Florida. It was in force for 3 hr. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 30, 2011, 8:14 PM EDT (00:14 UTC)
Expired
Oct 30, 2011, 11:00 PM EDT
In force
3 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Flood severity
None

County Miami-Dade County, FL

What was reported inside it

TimeReportWhereRemark
Oct 30, 8:42 PM EDTFLOODCutler Ridge, FLMIAMI METRO-DADE PD REPORTED ROAD TURNPIKE FRONTAGE ROAD CLOSED BETWEEN SW 211 AND 216 STREET, THEY ALSO REPORTED A LARGE PORTION OF CUTLER BAY WAS FLOODED ALONG WITH STRANDED VEHICLE AT 224 ST AND SW 91ST AVE...
Oct 30, 8:44 PM EDTFLOODCutler Ridge, FLSTORM SPOTTER REPORTED 1 FOOT WATER ON ROAD AT THE INTERSECTION OF CARRIBEAN AND MARLIN ROADS
Oct 30, 8:53 PM EDTFLOODKey Biscayne, FLKEY BISCAYNE POLICE DEPT REPORTED FLOODING AT WEST MCINTYER STREET, WEST ENID DRIVE, RIDGEWOOD ROAD AND JUST ABOUT THE ENTIRE WESTERN HALF OF KEY BISCAYNE...
Oct 30, 9:25 PM EDTFLOODCutler Ridge, FLRAIN NETWORK OBSERVER REPORTED 7.34 INCHES OF RAIN BETWEEN 6PM AND 9PM...
Oct 30, 9:25 PM EDTFLOODPinecrest, FLNWS EMPLOYEE REPORTED FLOODED ROADS PALMETTO BAY IN THE VICINITY OF SW 152ND STREET AND 88TH AVE
Oct 30, 9:30 PM EDTFLOODPinecrest, FLNWS EMPLOYEE REPORTED 6.95 INCHES OF RAIN AT RESIDENCE IN PINECREST THIS EVENING..
Oct 30, 9:40 PM EDTFLOODCoral Gables, FLSPOTTER REPORTED 2 FOOT STANDING WATER IN CORAL GABLES AT THE INTERSECTION OF BIRD ROAD AND PONCE DE LEON, WEST BOUND LANES ARE CLOSED.
Oct 30, 10:00 PM EDTFLOODCoral Gables, FLCORAL GABLES POLICE REPORTED 5 VEHICLES STALLED IN THE 500 BLOCK OF ARVIDA
Oct 30, 10:15 PM EDTFLOODCoral Gables, FLCORAL GABLES REPORTED AUTHORITIES FIRE DEPARTMENT LADDER TRUCK GOING INTO GABLES BY THE SEA,SINCE WATER TOO HIGH FOR CARS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 0.2 hours before the alert went out and 14 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 2011-10-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 860 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 2011-10-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
860 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

570 
WGUS52 KMFL 310014
FFWMFL
FLC086-310300-
/O.NEW.KMFL.FF.W.0004.111031T0014Z-111031T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
814 PM EDT SUN OCT 30 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 1100 PM EDT

* AT 810 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF TORRENTIAL RAIN OCCURRING BETWEEN SOUTH MIAMI AND CUTLER
  RIDGE...WITH THE HEAVIEST RAIN OVER PERRINE. A SOUTH FLORIDA WATER
  MANAGEMENT RAIN GUAGE HAS RECORDED 4.24 INCHES OF RAIN IN ABOUT THE
  PAST HOUR IN THE PERRINE AREA. ALSO...A STEADY RAIN CONTINUES OVER
  MIAMI BEACH. FLOODED STREETS HAVE BEEN REPORTED IN MIAMI BEACH AT
  THE 300 BLOCK OF WASHINGTON AVENUE...100 BLOCK OF JEFFERSON AVE...
  FIRST AND ALTON ROAD...AND ALONG 1000 SOUTH POINT DRIVE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CORAL
  GABLES...KENDALL...KEY BISCAYNE...MIAMI...MIAMI BEACH...CUTLER BAY...
  CUTLER RIDGE......PERRINE...PINECREST...UNIVERSITY OF
  MIAMI...AND WESTCHESTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 2580 8011 2567 8015 2566 8016 2568 8018
      2574 8017 2572 8024 2564 8026 2561 8030
      2553 8031 2555 8040 2571 8040 2584 8017
      2576 8018 2575 8016 2583 8014 2586 8015
      2588 8012

$$

GREGORIA
2 follow-up statements
518 
WGUS72 KMFL 310059
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
859 PM EDT SUN OCT 30 2011

FLC086-310300-
/O.CON.KMFL.FF.W.0004.000000T0000Z-111031T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIAMI-DADE FL-
859 PM EDT SUN OCT 30 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR EAST
CENTRAL MIAMI-DADE COUNTY...

AT 843 PM EDT...ROAD CLOSURES HAVE BEEN REPORTED BY MIAMI-DADE PD
ACROSS THE CUTLER RIDGE AREA...INCLUDING THE TURNPIKE FRONTAGE
ROAD BETWEEN SW 211TH AND 216TH STREETS. THEY ALSO REPORTED A LARGE
PORTION OF CUTLER BAY WAS FLOODED WITH VEHICLES STRANDED AT 
224TH STREET AND SW 91ST AVE. A SOUTH FLORIDA WATER MANAGEMENT
RAIN GUAGE RECORDED 6.36 IN THE CUTLER BAY AND PERRINE AREA.
TORRENTIAL RAIN WITH RATES UP TO 4 INCHES PER HOUR WILL AFFECT 
AREAS FROM PERRINE TO SOUTH MIAMI...LEADING TO FLASH FLOODING.

STREET FLOODING CONTINUES AT MIAMI BEACH AS WELL. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CUTLER BAY...CUTLER RIDGE...PERRINE...COCONUT GROVE...MIAMI 
BEACH...MIAMI...SOUTH MIAMI...AND CORAL GABLES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 2580 8011 2567 8015 2566 8016 2568 8018
      2574 8017 2572 8024 2564 8026 2561 8030
      2553 8031 2555 8040 2571 8040 2584 8017
      2576 8018 2575 8016 2583 8014 2586 8015
      2588 8012

$$

GREGORIA
292 
WGUS72 KMFL 310141
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
941 PM EDT SUN OCT 30 2011

FLC086-310300-
/O.CON.KMFL.FF.W.0004.000000T0000Z-111031T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIAMI-DADE FL-
941 PM EDT SUN OCT 30 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR EAST
CENTRAL MIAMI-DADE COUNTY...

TORRENTIAL RAIN HAS FALLEN ACROSS PORTIONS OF EASTERN MIAMI-DADE 
COUNTY. A FLASH FLOOD WARNING CONTINUES FOR EASTERN MIAMI-DADE 
COUNTY. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CUTLER 
BAY...CUTLER RIDGE...PERRINE...COCONUT GROVE...MIAMI 
BEACH...MIAMI...SOUTH MIAMI...AND CORAL GABLES

TORRENTIAL RAIN HAS RESULTED IN STREET FLOODING IN THE CUTLER BAY TO 
CORAL GABLES AREAS. TWO FEET OF WATER WAS JUST REPORTED AT BIRD ROAD 
AND PONCE DE LEON WITH THE WEST BOUND LANES CLOSED. MIAMI-DADE PD 
REPORTED FLOODING IN THE CUTLER RIDGE AREA...WITH VEHICLES STRANDED 
AT 224TH STREET AND SW 91ST AVE. FLOODING HAS BEEN REPORTED ON KEY 
BISCAYNE...AT WEST MCINTYER STREET...WEST ENID DRIVE...AND MUCH OF 
THE WESTERN PORTION OF KEY BISCAYNE. 

TORRENTIAL RAIN WITH RATES UP TO 3 INCHES PER HOUR WILL AFFECT AREAS 
FROM COCONUT GROVE TO KEY BISCAYNE. 

7.34 INCHES OF RAIN HAS BEEN RECORDED IN THE PAST FEW HOURS AT SAGA 
BAY. 6.95 INCHES WAS MEASURED BY AN NWS EMPLOYEE AT PINECREST. 

STREET FLOODING CONTINUES AT MIAMI BEACH AS WELL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 2580 8011 2567 8015 2566 8016 2568 8018
      2574 8017 2572 8024 2564 8026 2561 8030
      2553 8031 2555 8040 2571 8040 2584 8017
      2576 8018 2575 8016 2583 8014 2586 8015
      2588 8012

$$

GREGORIA

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 30, 8:02 PM EDTSpecial Marine WarningMFL43 min
Oct 30, 8:13 PM EDTSpecial Weather StatementMFLMiami-Dade47 min
Oct 30, 8:26 PM EDTTornado WarningMFLMiami-Dade34 min
Oct 30, 8:44 PM EDTSpecial Marine WarningMFL46 min
Oct 30, 8:55 PM EDTTornado WarningMFLMiami-Dade23 min
Oct 30, 9:31 PM EDTSpecial Marine WarningMFL44 min
Oct 30, 10:12 PM EDTAreal Flood AdvisoryMFLBroward2 hr
Oct 30, 10:31 PM EDTFlash Flood WarningMFLMiami-Dade6 hr
Oct 31, 12:07 AM EDTAreal Flood AdvisoryMFLBroward4 hr
Oct 31, 1:27 AM EDTFlash Flood WarningMFLBroward3 hr
Oct 31, 1:47 AM EDTSpecial Marine WarningMFL58 min
Oct 31, 2:26 AM EDTFlash Flood WarningMFLBroward3 hr
Oct 31, 4:21 AM EDTFlash Flood WarningMFLMiami-Dade5 hr
Oct 31, 4:29 AM EDTRip Current StatementMFLBroward, Miami-Dade, Palm Beach4 days
Oct 31, 4:31 AM EDTFlash Flood WarningMFLBroward5 hr
Oct 31, 8:32 AM EDTSpecial Marine WarningMFL28 min
Oct 31, 8:59 AM EDTAreal Flood WarningMFLMiami-Dade3 hr
Oct 31, 9:06 AM EDTAreal Flood WarningMFLBroward3 hr
Oct 31, 12:01 PM EDTFlash Flood WarningMFLMiami-Dade5 hr
Oct 31, 12:16 PM EDTFlash Flood WarningMFLBroward6 hr
Oct 31, 1:35 PM EDTSpecial Weather StatementMFLBroward40 min
Oct 31, 2:08 PM EDTSpecial Weather StatementMFLBroward52 min
Oct 31, 2:54 PM EDTAreal Flood AdvisoryMFLBroward111 min
Oct 31, 4:55 PM EDTFlash Flood WarningMFLMiami-Dade4 hr
Oct 31, 5:50 PM EDTAreal Flood WarningMFLBroward18 hr
Oct 31, 6:48 PM EDTAreal Flood WarningMFLMiami-Dade18 hr

Nearby

Flash Flood Warnings in Florida, 2011Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.