Alert archive / Florida / Flash Flood Warnings in 2005

Flash Flood Warning 4, NWS Miami, FL

August 26, 2005Miami-Dade County, Florida

NWS Miami, FL issued this flash flood warning at Aug 26, 2005, 12:44 AM EDT for Miami-Dade County, Florida. It was in force for 6 hr. 1 report 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
Aug 26, 2005, 12:44 AM EDT (04:44 UTC)
Expired
Aug 26, 2005, 7:00 AM EDT
In force
6 hr
Issued by
NWS Miami, FL
Area
Counties, with a storm outline in the text

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 30 km from the middle of the area, began a volume at 04:46 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.

What was reported inside it

TimeReportWhereRemark
Aug 26, 2:00 AM EDTFLASH FLOODGoulds, FLSEVERAL HOMES REPORTED FLOODED IN GOULDS

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, 4.7 hours before the alert went out and 56 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 2005-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 00:00Z on 2005-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
159 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 260445
FFWMFL
FLC086-261100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1244 AM EDT FRI AUG 26 2005

THE NATIONAL WEATHER SERVICE IN MIAMI HAS EXTENDED THE

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

* UNTIL 700 AM EDT

* AT 1240 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
MODERATELY HEAVY RAIN CONTINUING TO TRACK REPEATEDLY ACROSS SOUTHERN 
AND CENTRAL MIAMI-DADE COUNTY. RADAR AND RAIN GAUGE DATA INDICATE 
THAT AS MUCH AS 10 TO 14 INCHES OF RAINFALL HAS OCCURRED FROM KEY 
BISCAYNE TO HOMESTEAD THIS EVENING. AN ADDITIONAL 3 TO 6 INCHES OF 
RAINFALL IS POSSIBLE OVER THE WARNED AREA BY MORNING. THIS 
ADDITIONAL RAINFALL WILL EXACERBATE THE ONGOING SIGNIFICANT 
FLOODING. 

A FEW OF THE LOCATIONS AT GREATEST RISK FOR CONTINUED FLOODING ARE...

KEY BISCAYNE...PERRINE...COUNTRY WALK...CUTLER RIDGE...PRINCETON...
NARANJA...HOMESTEAD...FLORIDA CITY...AND THE REDLANDS.

SOUTH FLORIDA WATER MANAGEMENT REPORTED THAT SEVERAL CANALS WERE 
OVERFLOWING. MEDIA AND PUBLIC REPORTS ALSO INDICATE WIDESPREAD 
FLOODING OF STREETS WITH WATER ENTERING STRUCTURES IN SOME AREAS.

A FEW MAJOR ROADS WILL LIKELY BECOME IMPASSABLE WITH THIS EVENT. 
WIDESPREAD FLOODING OF UNPROTECTED STRUCTURES OR BUILDINGS ALONG WITH
MAJOR AGRICULTURAL DAMAGE ARE LIKELY. THE FLOODING WILL LIKELY BE 
SIMILAR TO THAT CAUSED BY HURRICANE IRENE IN OCTOBER OF 1999.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. THE WATER MAY OBSCURE DEEP CANALS...PONDS...OR 
WASHED OUT ROADWAYS. REMEMBER...TURN AROUND...DONT DROWN

LAT...LON 2511 8085 2522 8024 2576 8015 2574 8081

$$

HANDEL
1 follow-up statement
000 
WGUS72 KMFL 260728 CCA
FFSMFL

FLASH FLOOD STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE MIAMI FL
320 AM EDT FRI AUG 26 2005

FLC086-261100-
MIAMI-DADE FL-
320 AM EDT FRI AUG 26 2005

...A FLASH FLOOD WARNING CONTINUES SOUTHERN MIAMI-DADE COUNTY...

AT 317 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE RAINFALL AMOUNTS OF UP TO ONE INCH PER HOUR.

AS TROPICAL STORM KATRINA CONTINUES TO MOVE FARTHER TO THE 
WEST...THE RAIN BANDS WILL GRADUALLY DECREASE WITH ADDITIONAL 
AMOUNTS OF ABOUT ONE HALF INCH TO ONE INCH. HOWEVER...RADAR ESTIMATES 
THAT WIDESPREAD RAINFALL AMOUNTS IN EXCESS OF 6 TO 10 INCHES HAS 
OCCURRED FROM CORAL GABLES TO KENDALL LAKES EXTENDING SOUTH WITH A 
MAXIMUM OF 15 INCHES FROM PERRINE TO GOULDS TO HOMESTEAD.

THIS IS POTENTIALLY A VERY SIGNIFICANT FLOOD SITUATION. THIS AMOUNT 
OF RAIN COULD RESULT IN EXTENSIVE FLOODING ACROSS SOUTH  
FLORIDA...SIMILAR TO THAT EXPERIENCE WITH HURRICANE IRENE IN 1999 
AND THE TROPICAL DISTURBANCE OF OCTOBER 2 2000.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE WIDESPREAD FLOODING 
OF URBAN AREAS...HIGHWAYS...AS WELL AS OTHER POORLY DRAINED AREAS 
AND OTHER LOW LYING SPOTS AND MAY IMPACT NUMEROUS STRUCTURES.

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

LAT...LON 2511 8085 2522 8024 2576 8015 2574 8081

$$

BRABANDER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 7:23 AM EDTSpecial Marine WarningMFL2 hr
Aug 26, 10:55 AM EDTSpecial Marine WarningMFL2 hr
Aug 26, 11:45 AM EDTSpecial Marine WarningMFL90 min
Aug 26, 12:58 PM EDTSpecial Marine WarningMFL92 min
Aug 26, 1:12 PM EDTSpecial Marine WarningMFL2 hr
Aug 26, 2:26 PM EDTSpecial Marine WarningMFL2 hr

Nearby

Flash Flood Warnings in Florida, 2005Every flash flood warning in 2005

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; radar from the NEXRAD Level II archive.