Alert archive / Florida / Flash Flood Warnings in 2004

Flash Flood Warning 3, NWS Miami, FL

September 5, 2004Palm Beach County, Florida

NWS Miami, FL issued this flash flood warning at Sep 5, 2004, 9:54 AM 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, 9:54 AM EDT (13:54 UTC)
Expired
Sep 5, 2004, 1:00 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), 131 km from the middle of the area, began a volume at 13:57 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, 1.9 hours before the alert went out and 106 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 051400
FFWMIA
FLC099-051700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
954 AM 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 100 PM EDT

* AT 945 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN STILL OCCURRING FROM NORTH OF BOYNTON BEACH TO THE 
  JUPITER AREA. THE RAIN GAUGE AT PALM BEACH INTERNATIONAL AIRPORT   
  HAS INDICATED UP TO 10 INCHES OF RAIN IN THE LAST 24 HOURS. AN     
  ADDITIONAL ONE TO THREE INCHES OF RAIN ARE POSSIBLE AS HEAVY RAIN  
  BANDS ON THE SOUTH SIDE OF HURRICANE FRANCES MOVES ACROSS THE AREA 
  FOR THE NEXT FEW HOURS. THIS RAINFALL AMOUNTS ARE SPREADING OVER   
  AREAS WHERE AT LEAST FIVE INCHES HAS FALLEN SINCE SATURDAY OVER    
  METRO PALM BEACH COUNTY WITH ISOLATED RAINFALL AMOUNTS OF EIGHT TO 
  TEN INCHES. 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...RIVIERA BEACH...PALM BEACH GARDENS...JUNO BEACH
  AND HAVERHILL.

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.

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

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 2665 8028 2665 8003 2696 8005 2695 8029

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 12:53 PM 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.