Alert archive / Florida / Flash Flood Warnings in 1998

Flash Flood Warning 1, NWS Melbourne, FL

January 23, 1998Brevard County, Florida

NWS Melbourne, FL issued this flash flood warning at Jan 23, 1998, 1:44 PM EST for Brevard County, Florida. It was in force for 4 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
Jan 23, 1998, 1:44 PM EST (18:44 UTC)
Expired
Jan 23, 1998, 5:40 PM EST
In force
4 hr
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 18:46 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.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.7 hours before the alert went out and 27 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, Cape Canaveral, FL at 12:00Z on 1998-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1021 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 1998-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1021 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 231844
FFWMLB
FLC009-232240-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
144 PM EST FRI JAN 23 1998

THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 540 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL FLORIDA

   ...SOUTHERN BREVARD COUNTY
 
...FLOODING REPORTED IN SOUTHERN BREVARD COUNTY...

AT 135 PM...STREET CLOSURES AND WATER INTO SOME RESIDENCES WERE
REPORTED NEAR MALABAR ROAD AND HIGHWAY ONE.  DOPPLER RADAR ESTIMATES
SHOWED THAT 2 TO 3 INCHES OF RAIN OCCURRED BETWEEN 11 AM AND
1 PM IN THIS AREA.  ADDITIONAL RAINFALL OF 1 TO 2 INCHES WILL MOVE
ACROSS SOUTHERN BREVARD COUNTY BETWEEN 2 AND 3 PM.

THEREFORE THE URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN
UPGRADED TO A FLOOD WARNING.

IF DRIVING THROUGH SOUTHERN BREVARD COUNTY THIS AFTERNOON AND
EVENING...BE ALERT FOR SUBSTANTIAL STANDING WATER ON ROADWAYS.
SEVERAL VEHICLES HAVE ALREADY STALLED OUT WHILE TRYING DRIVE THROUGH
STANDING WATER AROUND MALABAR ROAD.

THOSE WHO LIVE IN FLOOD PRONE LOCATIONS IN SOUTHERN BREVARD COUNTY...
ESPECIALLY THOSE SPOTS THAT HAVE ALREADY RECEIVED HEAVY RAINFALL
TODAY...SHOULD TAKE STEPS TO PROTECT LIFE AND PROPERTY.

LASCODY
 

&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 23, 10:28 AM ESTSevere Thunderstorm WarningMLBIndian River47 min
Jan 23, 11:20 AM ESTSevere Thunderstorm WarningMLBBrevard60 min
Jan 23, 12:54 PM ESTSevere Thunderstorm WarningMLBBrevard21 min

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; radar from the NEXRAD Level II archive.