Alert archive / Florida / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Miami, FL

November 5, 1998Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this flash flood warning at Nov 5, 1998, 1:06 AM EST for Broward County, Miami-Dade County, Florida. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 5, 1998, 1:06 AM EST (06:06 UTC)
Expired
Nov 5, 1998, 3:10 AM EST
In force
2 hr
Issued by
NWS Miami, FL
Area
Whole counties

Counties Broward County, FL, Miami-Dade County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 6.1 hours before the alert went out and 20 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 1998-11-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 110 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 1998-11-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 367 square meters per square second.19395878Sfc1 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
110 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
853 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
367 m²/s²
0-3 km storm-relative helicity
607 m²/s²
Significant tornado parameter
0.2
Supercell composite
17.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMIA 050608
FFWMIA
FLC011-025-099-050810-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
106 AM EST THU NOV 5 1998

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLOOD WARNING FOR...
  PALM BEACH COUNTY IN SOUTHEASTERN FLORIDA
  BROWARD COUNTY IN SOUTHEASTERN FLORIDA
  EASTERN DADE COUNTY IN SOUTHEASTERN FLORIDA

* UNTIL 310 AM EST

* AT 105 AM EST MIAMI DOPPLER RADAR INDICATED THAT AS MUCH AS 4 TO 6
  INCHES OF RAIN HAS FALLEN ACROSS MUCH OF EASTERN PALM BEACH...
  EASTERN BROWARD...AND NORTHEASTERN MIAMI-DADE COUNTIES. HEAVY
  RAINFALL IS CONTINUING ACROSS A LARGE PART OF THIS AREA AND
  FLOODING OF STREETS AND UNDERPASSES IS OCCURRING ACROSS A LARGE
  AREA. WATER AS HIGH AS CAR HOODS HAS BEEN REPORTED IN SOME AREAS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT DRIVE INTO AREAS OF PONDING WATER OF
UNKNOWN DEPTH. IF FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP OR 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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. MOVE TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 4, 9:31 PM ESTSevere Thunderstorm WarningMFLCollier44 min
Nov 4, 10:16 PM ESTSevere Thunderstorm WarningMFLCollier44 min
Nov 4, 10:58 PM ESTTornado WarningMFLCollier32 min
Nov 4, 11:43 PM ESTTornado WarningMFLBroward32 min
Nov 5, 12:13 AM ESTSevere Thunderstorm WarningMFLPalm Beach32 min
Nov 5, 1:06 AM ESTFlash Flood WarningMFLPalm Beach2 hr

Nearby

Flash Flood Warnings in Florida, 1998Every flash flood warning in 1998

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.