Alert archive / Florida / Flash Flood Warnings in 1999

Flash Flood Warning 5, NWS Melbourne, FL

September 26, 1999Brevard County, Florida

NWS Melbourne, FL issued this flash flood warning at Sep 26, 1999, 12:14 AM EDT for Brevard County, Florida. It was in force for 106 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 26, 1999, 12:14 AM EDT (04:14 UTC)
Expired
Sep 26, 1999, 2:00 AM EDT
In force
106 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 04:13 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

Tampa Bay, FL (KTBW), launched 00:00Z, 4.2 hours before the alert went out and 180 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, Tampa Bay, FL at 00:00Z on 1999-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 552 joules per kilogram.LCLLFCEL10008507005003002001001 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, Tampa Bay, FL at 00:00Z on 1999-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
552 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
912 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
56 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 
TTAA00 KMLB 260418
FFWMLB
FLC009-260600-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1214 AM EDT SUN SEP 26 1999

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS EXTENDED THE

* FLOOD WARNING FOR...

  BREVARD COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 200 AM EDT

* AT 1210 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAIN ALONG THE COAST OF BREVARD COUNTY FROM MALABAR TO
  BAREFOOT BAY AND EXTENDING SOUTH INTO INDIAN RIVER COUNTY NEAR
  WABASSO.

  THE RAIN WAS MOVING NORTH TO NORTHWEST ALONG THE COAST OF BREVARD
  COUNTY.

* THE HEAVIEST RAIN WILL FALL OVER THE BARRIER ISLAND COMMUNTIES OF
  MELBOURNE BEACH...INDIALANTIC...INDIAN HARBOUR BEACH...SATELLITE
  BEACH AND COCOA BEACH. MOTOROISTS DRIVING ON EITHER U S 1 OR STATE
  ROAD A1A SHOULD ALSO BE ON THE LOOKOUT FOR FLOODED ROADS.

* THE RAIN WILL LIKELY AGGRAVATE THE FLOODING AND STANDING WATER
  PROBLEMS IN THE AREA.


MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS LOW
SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE
WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.


CRISTALDI

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this flash flood warning went out at Sep 25, 8:55 PM EDT, 3 hours 19 minutes earlier.

Area forecast discussion, Sep 25, 8:55 PM EDT, 3 hours 19 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
855 PM EDT SAT SEP 25 1999

CURRENT...CONCENTRATED HEAVY RAIN HAS FOCUSED IN ON THE MELBOURNE
AREA. THE NWS OFFICE HAS RECEIVED OVER TWO INCHES OF RAIN IN JUST
FORTY MINUTES AND STILL FALLING AT THIS EXCESSIVE RATE. A FLOOD
WARNING HAS BEEN ISSUED FOR BREVARD COUNTY SINCE THIS IS ON TOP OF
THE 3 TO 5 INCHES ALREADY RECEIVED IN THIS AREAS TODAY. CONCERNED
THAT MESOSCALE FOCUS MAY NOT SHIFT FOR SEVERAL HOURS YET.

REST OF TONIGHT...CONVECTION HAS DECREASED IN COVERAGE OVER EAST
CENTRAL FLORIDA...IN GENERAL. HOWEVER...NOT THE CASE FOR BREVARD AND
INDIAN RIVER. EXPECT SCATTERED POPS GOOD FOR TONIGHT INLAND
COUNTIES...BUT BETTER CHANCES NEAR THE COAST. MOISTURE CONTINUES TO
STREAM NORTHWARD RIDING UP OVER THE SHALLOW EAST FLOW AS SEEN ON THE
VWP.

.MLB...NONE.

SHARP

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 8:28 PM EDTFlash Flood WarningMLBBrevard117 min
Sep 25, 10:25 PM EDTFlash Flood WarningMLBBrevard2 hr
Sep 26, 2:51 PM EDTFlash Flood WarningMLBBrevard2 hr

Nearby

Flash Flood Warnings in Florida, 1999Every flash flood warning in 1999

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.