Alert archive / Florida / Flash Flood Warnings in 2017

Flash Flood Warning 5, NWS Melbourne, FL

October 1, 2017Brevard County, Florida

NWS Melbourne, FL issued this flash flood warning at Oct 1, 2017, 8:33 PM EDT for Brevard County, Florida. It was in force for 3 hr. 16 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 1, 2017, 8:33 PM EDT (00:33 UTC)
Expired
Oct 1, 2017, 11:30 PM EDT
In force
3 hr
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Flood severity
None

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 13 km from the middle of the area, began a volume at 00:34 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.

What was reported inside it

TimeReportWhereRemark
Oct 1, 8:35 PM EDTFLOODPalm Bay, FLPALM BAY POLICE REPORT A PORTION OF US1 AND SEVERAL SIDE STREETS ARE IMPASSABLE DUE TO FLOODING
Oct 1, 8:38 PM EDTHEAVY RAIN 6.144 Nne Barefoot Bay, FLWEATHER UNDERGROUND SITE REPORTS DAILY PRECIP ACCUMULATION OF 10.44 INCHES THROUGH 830PM EDT
Oct 1, 9:41 PM EDTFLOOD3 Ese Cocoa, FLPUBLIC REPORTS CARS STALLED ON ROADWAYS IN BUTTONWOOD MANOR NEIGHBORHOOD IN MERRITT ISLAND DUE TO FLOODING
Oct 1, 9:46 PM EDTHEAVY RAIN 6.074 E Camp Holly Fish Cam, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 7.64 IN THROUGH 10PM EDT
Oct 1, 9:46 PM EDTHEAVY RAIN 7.644 E Camp Holly Fish Cam, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 7.64 IN THROUGH 10PM EDT
Oct 1, 9:47 PM EDTHEAVY RAIN 4.495 S Indialantic, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 9.19 IN THROUGH 10PM EDT
Oct 1, 9:47 PM EDTHEAVY RAIN 9.195 S Indialantic, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 9.19 IN THROUGH 10PM EDT
Oct 1, 9:48 PM EDTHEAVY RAIN 5.025 N Barefoot Bay, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 8.45 IN THROUGH 10PM EDT
Oct 1, 9:48 PM EDTHEAVY RAIN 8.455 N Barefoot Bay, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 8.45 IN THROUGH 10PM EDT
Oct 1, 9:51 PM EDTFLOOD2 Sse Patrick Air Force, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 8.76 IN THROUGH 10PM EDT
Oct 1, 9:51 PM EDTHEAVY RAIN 8.762 Sse Patrick Air Force, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 8.76 IN THROUGH 10PM EDT
Oct 1, 9:55 PM EDTHEAVY RAIN 10.764 Nne Barefoot Bay, FLWEATHER UNDERGROUND SITE REPORTS DAILY PRECIP ACCUMULATION OF 10.76 INCHES THROUGH 10PM EDT
Oct 1, 10:00 PM EDTHEAVY RAIN 7.573 Ene Cocoa, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 7.57 IN THROUGH 10PM EDT
Oct 1, 10:11 PM EDTHEAVY RAIN 7.025 Wnw Patrick Air Force, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 7.02IN THROUGH 10PM EDT
Oct 1, 10:13 PM EDTHEAVY RAIN 7.295 Nnw Melbourne, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 7.29IN THROUGH 10PM EDT
Oct 1, 10:14 PM EDTHEAVY RAIN 6.986 Ne Camp Holly Fish Ca, FLWEATHER UNDERGROUND SITE REPORTS DAILY RAINFALL ACCUMULATION OF 6.98 IN THROUGH 10PM EDT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 0.6 hours before the alert went out and 188 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 2017-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 361 joules per kilogram.LCLLFCEL10008507005003002001001 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, Tampa Bay, FL at 00:00Z on 2017-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939Sfc1 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
361 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
974 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

222 
WGUS52 KMLB 020033
FFWMLB
FLC009-020330-
/O.NEW.KMLB.FF.W.0005.171002T0033Z-171002T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Melbourne FL
833 PM EDT SUN OCT 1 2017

The National Weather Service in Melbourne has issued a

* Flash Flood Warning for...
  Central Brevard County in Florida...

* Until 1130 PM EDT

* At 824 PM EDT, Doppler radar and automated rain gauges continue to 
  indicate heavy rain falling from persistent rain bands across much 
  of Brevard County. Measured rainfall amounts up to 4 to 6 inches 
  have already occurred from Satellite Beach and Melbourne northward 
  through Cape Canaveral, Cocoa and Merritt Island, and additional 
  heavy rainfall up to 2 to 3 inches will be possible across this 
  region. Farther south, amounts will not be as heavy, but moderate 
  rain combined with amounts up to 8 to 10 inches that have already 
  fallen from West Melbourne area, as well as Melbourne Beach 
  southward through Floridana Beach will continue flooding issues. 
  This heavy rainfall will lead to flash flooding, with roadways 
  becoming impassable and water potentially entering some homes.

* Some locations that will experience flooding include...
  West Melbourne, Melbourne, Malabar, Satellite Beach, Melbourne 
  Beach, Floridana Beach, Merritt Island and Cocoa. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles. Be especially cautious at night when it is 
harder to recognize the dangers of flooding.

Please report flooding to your local law enforcement agency when you
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 2792 8046 2793 8065 2815 8074 2853 8084
      2853 8052 2846 8049 2839 8056 2830 8057
      2819 8056 2796 8046

$$

Weitlich
1 follow-up statement
852 
WGUS72 KMLB 020157
FFSMLB

Flash Flood Statement
National Weather Service Melbourne FL
957 PM EDT SUN OCT 1 2017

FLC009-020330-
/O.CON.KMLB.FF.W.0005.000000T0000Z-171002T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brevard FL-
957 PM EDT SUN OCT 1 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
CENTRAL BREVARD COUNTY...

At 945 PM EDT, Doppler radar, automated rain gauges, and law 
enforcement reports continue to indicate heavy rain and flooding 
across much of Brevard County. Measured rainfall amounts up to 4 to 
6 inches have already fallen across many areas of central and 
southern Brevard County, with locally higher amounts up to 8 to 10 
inches across portions of Merritt Island, West Melbourne, Malabar, 
and beachside from Satellite Beach southward through Floridana 
Beach. This heavy rainfall has and will continue to lead to flash 
flooding, with numerous roadways already being reported as 
impassable in Palm Bay and Merritt Island, as well as water entering 
some homes.

Some locations that will experience flooding include...
Palm Bay, West Melbourne, Melbourne, Malabar, Satellite Beach, 
Melbourne Beach, Floridana Beach, Merritt Island and Cocoa. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles. Be especially cautious at night when it is 
harder to recognize the dangers of flooding.

Please report flooding to your local law enforcement agency when you
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 2792 8046 2793 8065 2815 8074 2853 8084
      2853 8052 2846 8049 2839 8056 2830 8057
      2819 8056 2796 8046

$$

Weitlich

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 8:51 PM EDTTornado WarningMLBBrevard11 min
Oct 1, 11:30 PM EDTFlash Flood WarningMLBBrevard3 hr
Oct 2, 3:37 AM EDTHigh Surf AdvisoryMLBVolusia4 days

Nearby

Flash Flood Warnings in Florida, 2017Every flash flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.