Alert archive / Florida / Flash Flood Warnings in 2004

Flash Flood Warning 4, NWS Miami, FL

September 5, 2004Palm Beach County, Florida

NWS Miami, FL issued this flash flood warning at Sep 5, 2004, 12:53 PM EDT for Palm Beach County, Florida. It was in force for 3 hr. 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 5, 2004, 12:53 PM EDT (16:53 UTC)
Expired
Sep 5, 2004, 4:00 PM EDT
In force
3 hr
Issued by
NWS Miami, FL
Area
Counties, with a storm outline in the text

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 119 km from the middle of the area, began a volume at 16:54 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, 4.9 hours before the alert went out and 94 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 2004-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 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 2004-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1181 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
31 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 051708
FFWMIA
FLC099-052000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1253 PM EDT SUN SEP 5 2004

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PALM BEACH COUNTY IN SOUTHEAST FLORIDA

* UNTIL 400 PM EDT

* AT 1248 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  THAT VERY HEAVY RAIN CONTINUES TO AFFECT PALM BEACH COUNTY FROM    
  JUST NORTH OF BOCA RATON TO THE JUPITER AREA. RAINFALL REPORTS     
  ACROSS THE AREA INDICATED THAT AN AVERAGE OF ADDITIONAL RAINFALL   
  OF 1 TO 4 INCHES HAVE FALLEN SINCE 8 AM THIS MORNING. AN           
  ADDITIONAL ONE TO THREE INCHES OF RAIN ARE STILL POSSIBLE AS HEAVY 
  RAIN BANDS ON THE SOUTH SIDE OF HURRICANE FRANCES CONTINUE TO MOVE 
  ACROSS THE AREA FOR THE NEXT FEW HOURS. PART OF INTERSTATE 95 AT   
  FOREST HILL BOULEVARD WASHED OUT DUE TO RUNOFF FROM THE HEAVY      
  RAINS. THEREFORE, A FLASH FLOOD WARNING HAS BEEN ISSUED.


* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORT 
  OF PALM BEACH...NORTH PALM BEACH...WEST PALM BEACH...TEQUESTA...   
  ROYAL PALM BEACH...OCEAN RIDGE...LANTANA...LAKE                    
  WORTH...JUPITER...  JUNO BEACH...HAVERHILL...GREENACRES CITY AND   
  BOYNTON BEACH.

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

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO A SAFER LOCATION IMMEDIATELY.

LAT...LON 2645 8026 2647 8005 2696 8005 2695 8029

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 9:54 AM EDTFlash Flood WarningMFLPalm Beach3 hr
Sep 5, 5:17 PM EDTSpecial Marine WarningMFL118 min
Sep 5, 7:09 PM EDTSpecial Marine WarningMFL2 hr

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; radar from the NEXRAD Level II archive.