Alert archive / Florida / Flash Flood Warnings in 1999

Flash Flood Warning 9, NWS Melbourne, FL

October 16, 1999Brevard County, Florida

NWS Melbourne, FL issued this flash flood warning at Oct 16, 1999, 6:50 AM EDT for Brevard 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 counties it named.

The facts

Issued
Oct 16, 1999, 6:50 AM EDT (10:50 UTC)
Expired
Oct 16, 1999, 10:00 AM EDT
In force
3 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 10:42 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 00:00Z, 10.8 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 00:00Z on 1999-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1017 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, Cape Canaveral, FL at 00:00Z on 1999-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
1017 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
730 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
36 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 161054
FFWMLB
FLC009-161400-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
650 AM EDT SAT OCT 16 1999

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* FLOOD WARNING FOR...
  BREVARD COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 1000 AM EDT

* AT 650 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN ACROSS BREVARD COUNTY.  MOVEMENT WAS WEST AT 10 MPH.

* TORRENTIAL RAINFALL WILL CONTINUE TO ROTATE ONSHORE FROM THE
  ATLANTIC AND AFFECT BREVARD COUNTY THROUGH 10 AM. AN ADDITIONAL
  TWO TO FOUR INCHES OF RAIN CAN BE EXPECTED DURING THIS TIME
  PERIOD. THE RAIN SHOULD BEGIN TO DECREASE IN INTENSITY AROUND 10
  AM.

MOST FLOOD DEATHS7 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.

$$

TROUTMAN

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 Oct 16, 3:30 AM EDT, 3 hours 20 minutes earlier.

Area forecast discussion, Oct 16, 3:30 AM EDT, 3 hours 20 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
330 AM EDT SAT OCT 16 1999

TODAY...IRENE WILL CONTINUE TO MOVE NORTH-NORTHEAST TODAY FROM NEAR
JUPITER EARLY THIS AM OFFSHORE. MAIN FORECAST PROBLEMS TODAY WILL BE
WIND SPEED FORECAST...INLAND FLOOD POSSIBILITY AND TIMING THE SYSTEM
OUT OF THE FA.

FOR NOW...WILL CONTINUE WITH FLOOD WATCH FOR THE FA DUE TO THE
PROXIMITY OF IRENE. RAIN BANDS CONTINUE TO SHIFT NORTHWEST AND WEST
INTO THE FA FROM BREVARD COUNTY SOUTHWARD. AS FAR AS WINDS ARE
CONCERNED...BASED ON SPOTTER REPORTS AND AREA SURFACE OBS...WILL
LOWER HIGH WIND WARNING TO A WIND ADVISORY FOR THE INLAND COUNTIES
AND LET TROPICAL STORM WARNING HANDLE THE COASTAL COUNTIES.

TONIGHT/SUNDAY...AS IRENE PULLS AWAY FROM THE FLORIDA PENINSULA...
EXPECT STRONG SUBSIDENCE TO BUILD IN.  SOME DRIER AIR ALREADY
FILTERING INTO THE WEST PENINSULA...TREND SHOULD CONTINUE EASTWARD.
PLAN TO KEEP SCT POPS OVERNIGHT...WITH MINIMAL...IF ANY...POPS ON
SUNDAY. WINDS DIMINISHING AND SHIFTING TO THE W/NW. WITH SW WINDS
AND SUPPRESSION IN PLACE ON SUNDAY...TEMPS WILL BE ABOVE CLIMO.

EXTENDED...HIGH PRESSURE RIDGE WILL BUILD ACROSS THE MIDWEST AND
APPALACHIANS...TURNING WINDS BACK TO THE NORTH AND NORTHEAST ON
TUESDAY.  WILL SEPARATE MONDAY AND KEEP IT DRY. MODELS BRINGING DRY
AIR IN WITH THE APPROACHING RIDGE...BUT AM HESISTANT TO GO
COMPLETELY DRY WITH AN ONSHORE WIND COMPONENT.  WILL COMPROMISE AND
INTRODUCE SMALL POPS ON TUESDAY...BUT NOTHING MORE UNTIL SITUATION
RESOLVES ITSELF.

.MARINE...WINDS AND SEAS INCREASING AS CENTER OF IRENE MOVES ACROSS
SRN LEG. BUOY 009 MEASURING TROPICAL STORM FORCE WINDS WITH 16 FT
SEAS.  NO WX SPOTTER INDICATION OF HURRICANE FORCE WINDS. WILL KEEP
WINDS AND SEAS BELOW HURRICANE LEVEL ATTM...BUT A LATE INCREASE MAY
BE NECESSECARY IF IRENE STRENGTHENS OVER THE GULFSTREAM.

COORD WITH KTBW AND KJAX...THANKS FOR INPUT

PRELIMINARY NUMBERS...
DAB RB 082/072 086/069 081 81+42
MCO RB 082/073 087/070 084 81731
MLB RB 083/073 087/071 083 81+42

.MLB...TROPICAL STORM WARNING AND SMALL CRAFT REMAIN IN PORT FLAGLER
BEACH TO JUPITER INLET. WIND ADVISORY INTERIOR COUNTIES TODAY. FLOOD
WATCH ALL OF EAST CENTRAL FLORIDA TODAY.

TROUTMAN/BRAGAW

In the hours before

Special weather statement, Oct 16, 6:15 AM EDT, 35 minutes before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-162000-

EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
615 AM EDT SAT OCT 16 1999

FOR DETAILED INFORMATION REGARDING WEATHER HAZARDS ASSOCIATED WITH
HURRICANE IRENE AND THE EXPECTED IMPACTS TO EAST CENTRAL FLORIDA...
PLEASE REFER TO THE LATEST HURRICANE LOCAL STATEMENT.

TROUTMAN
Special weather statement, Oct 16, 6:15 AM EDT, 35 minutes before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-162000-

EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
615 AM EDT SAT OCT 16 1999

FOR DETAILED INFORMATION REGARDING WEATHER HAZARDS ASSOCIATED WITH
HURRICANE IRENE AND THE EXPECTED IMPACTS TO EAST CENTRAL FLORIDA...
PLEASE REFER TO THE LATEST HURRICANE LOCAL STATEMENT.

TROUTMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 16, 4:50 AM EDTFlash Flood WarningMLBIndian River3 hr
Oct 16, 7:50 AM EDTFlash Flood WarningMLBIndian River115 min
Oct 16, 9:50 AM EDTFlash Flood WarningMLBBrevard3 hr
Oct 16, 10:02 AM EDTFlash Flood WarningMLBVolusia6 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.