Alert archive / Florida / Flash Flood Warnings in 2004

Flash Flood Warning 7, NWS Miami, FL

September 28, 2004Miami-Dade County, Florida

NWS Miami, FL issued this flash flood warning at Sep 28, 2004, 2:35 PM EDT for Miami-Dade County, Florida. It was in force for 115 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
Sep 28, 2004, 2:35 PM EDT (18:35 UTC)
Expired
Sep 28, 2004, 4:30 PM EDT
In force
115 min
Issued by
NWS Miami, FL
Area
Counties, with a storm outline in the text

County Miami-Dade County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 6.6 hours before the alert went out and 25 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 2004-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1026 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2004-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
1026 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
-17 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.

000 
WGUS52 KMFL 281837
FFWMIA
FLC086-282030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
235 PM EDT TUE SEP 28 2004

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

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

* UNTIL 430 PM EDT

* AT 232 PM EDT...THE METRO MIAMI-DADE POLICE DEPARTMENT REPORTED    
  SIGNIFICANT STREET FLOODING ACROSS PORTIONS OF THE WESTERN MIAMI   
  METRO AREA...ESPECIALLY ACROSS KENDALE LAKES AND KENDALL.          
  OFFICIALS REPORTED SIGNIFICANT FLOODING OF STREETS WEST OF 132ND   
  AVENUE BETWEEN SW 200TH STREET AND SW 8TH STREET. 

THUNDERSTORMS ARE NEARLY STATIONARY OVER THE KENDALE LAKES AND WEST 
KENDALL AREA...WITH HEAVY RAIN FALLING. ADDITIONAL RAINFALL OF 1 TO 
3 INCHES IS EXPECTED. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL 
CONTINUE TO CAUSE FLOODING OF URBAN AREAS...HIGHWAYS...STREETS AND 
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY THE WATER MAY OBSCURE DEEP CANALS OR PONDS.

LAT...LON 2564 8059 2558 8044 2568 8029 2582 8049

$$

DG
1 follow-up statement
000 
WGUS72 KMFL 281948
FFSMIA
FLC086-282030-

FLASH FLOOD STATEMENT...CORRECTION FOR CODING
NATIONAL WEATHER SERVICE MIAMI FL
345 PM EDT TUE SEP 28 2004
 
...FLASH FLOOD WARNING CONTINUES FOR PORTIONS OF MIAMI-DADE COUNTY...

MIAMI DOPPLER RADAR CONTINUES TO INDICATE VERY HEAVY RAIN FALLING 
OVER NORTH CENTRAL MIAMI-DADE COUNTY IN THE KENDALE LAKES VICINITY. 
SEVERAL PUBLIC CONTACTS HAVE BEEN RECEIVED REPORTING SIGNIFICANT 
STREET FLOODING IN THE REGION FROM KENDALE LAKES TO RICHMOND 
HEIGHTS. RADAR ESTIMATES THAT FIVE TO SIX INCHES OF RAIN HAS FALLEN 
IN THIS AREA IN THE PAST FOUR HOURS. ADDITIONAL THUNDERSTORMS 
CONTINUE TO DEVELOP TO THE WEST AND MOVE NORTHEAST ACROSS THE SAME 
REGION WITH AN ADDITIONAL ONE TO TWO INCHES OF RAIN POSSIBLE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CONTINUE TO CAUSE FLOODING 
OF URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER 
DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY THE WATER MAY OBSCURE DEEP CANALS OR PONDS.


$$ 

KB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 12:32 PM EDTSevere Thunderstorm WarningMFLBroward28 min
Sep 28, 12:33 PM EDTSpecial Marine WarningMFL57 min
Sep 28, 4:30 PM EDTFlash Flood WarningMFLMiami-Dade90 min

Nearby

Flash Flood Warnings in Florida, 2004Every flash flood warning in 2004

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.