Alert archive / Florida / Flash Flood Warnings in 2008

Flash Flood Warning 8, NWS Melbourne, FL

August 20, 2008Brevard County, Florida

NWS Melbourne, FL issued this flash flood warning at Aug 20, 2008, 12:32 PM EDT for Brevard County, Florida. It was in force for 8 hr. 1 report 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: Aug 20, 2008, 12:32 PM EDT (16:32 UTC)
Expired: Aug 20, 2008, 8:30 PM EDT
In force: 8 hr
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Flood severity: None

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 4 km from the middle of the area, began a volume at 16:34 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

Time	Report	Where	Remark
Aug 20, 12:40 PM EDT	FLOOD	Melbourne, FL	UP TO 5 FEET OF WATER IN SOME MELBOURNE AREAS. NATIONAL GUARD IS ENROUTE TO AID WITH VOLUNTARY EVACUATIONS, PRIMARILY IN THE JUNE PARK AREA, LAMPLIGHTER VILLAGE, LAKE WASHINGTON ROAD. NO OFFICIAL NOTICE OF ROAD CLOSURES AT THIS TIME.

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

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 4.5 hours before the alert went out and 39 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 900 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 22 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 
WGUS52 KMLB 201632
FFWMLB
FLC009-202030-
/O.NEW.KMLB.FF.W.0008.080820T1632Z-080820T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1232 PM EDT WED AUG 20 2008

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS REISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BREVARD COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...MERRITT ISLAND...SATELLITE BEACH...  
  ROCKLEDGE...PALM BAY...MELBOURNE...MALABAR...INDIALANTIC...  

* UNTIL 430 PM EDT

* AT 1230 PM EDT...RADAR AND SPOTTER REPORTS CONTINUED TO REPORT     
  RECORD RAINFALL FROM RAINBAND SQUALLS OVER SOUTHERN BREVARD COUNTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  VIERA...EAU GALLIE...MELBOURNE BEACH. 

THIS IS A HISTORIC AND POTENTIALLY HAZARDOUS RAINFALL EVENT ACROSS 
THE AREA. A DRIVING HAZARD WILL CONTINUE TO EXIST INTO THIS EVENING 
DUE TO ACCUMULATED STANDING WATER IN MANY AREAS. ALTHOUGH FLOWING 
WATER MAY NOT BE PRESENT THERE IS A THREAT PARTICULARLY ALONG LOW 
LYING ROADWAYS AND ROADS THAT ARE LINED WITH CULVERTS AND DITCHES. 

YOU MAY BELIEVE YOU ARE ON THE ROADWAY HOWEVER YOU MAY ACTUALLY LOSE 
CONTACT WITH THE ROAD SURFACE HOWEVER YOU CAN STRAY INTO A WATER 
FILLED DITCH OR HIT A SUBMERGED OBSTRUCTION. 

IF YOU DO NOT NEED TO BE ON THE ROADS THIS AFTERNOON PLEASE STAY IN 
A SHELTERED LOCATION. DRIVING IS VERY HAZARDOUS AROUND SOUTH BREVARD 
COUNTY.   

ADDITIONAL RAINFALL ACCUMULATIONS OF ONE TO THREE INCHES ACROSS 
SOUTHERN BREVARD COUNTY ARE LEADING TO POSSIBILITY OF WATER ENTERING 
HOMES AND BUSINESSES. ROAD DETOURS AND CLOSURES ARE LIKELY AROUND 
MELBOURNE...PALM BAY...EAU GALLIE...VIERA AND SUNTREE. 

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED 
BRIDGES...DIPS...OR LOW WATER CROSSINGS. TO ESCAPE RISING WATER MOVE 
UP TO HIGHER GROUND.

LAT...LON 2788 8047 2794 8052 2787 8049 2784 8067
      2785 8087 2835 8087 2836 8072 2834 8072
      2836 8071 2836 8065 2827 8066 2823 8063
      2828 8061 2834 8064 2836 8061 2820 8059
      2808 8056 2788 8045

$$

PENDERGRAST

3 follow-up statements

000 
WGUS72 KMLB 201728
FFSMLB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
128 PM EDT WED AUG 20 2008

FLC009-202030-
/O.CON.KMLB.FF.W.0008.000000T0000Z-080820T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BREVARD FL-
128 PM EDT WED AUG 20 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
SOUTHERN BREVARD COUNTY...

THIS IS A HISTORIC AND HAZARDOUS RAINFALL EVENT ACROSS THE AREA.  
DRIVING HAZARDS WILL CONTINUE INTO THIS EVENING DUE TO ACCUMULATION 
OF STANDING WATER IN MANY AREAS. ALTHOUGH FLOWING WATER MAY NOT BE 
PRESENT THERE IS A THREAT PARTICULARLY ALONG LOW LYING ROADWAYS AND 
ROADS THAT ARE LINED WITH CULVERTS AND DITCHES. 

WHILE DRIVING YOU MAY BELIEVE YOU ARE ON THE ROADWAY HOWEVER YOU MAY 
LOSE CONTACT WITH THE ROAD SURFACE. IF YOU STRAY INTO A WATER FILLED 
DITCH OR HIT A SUBMERGED OBSTRUCTION YOUR CAR WILL BE DISABLED...OR 
EVEN WORSE YOU MAY BECOME TRAPPED WITHIN A SUBMERGED VEHICLE. 

IF YOU DO NOT NEED TO BE ON THE ROADS THIS AFTERNOON PLEASE STAY IN 
A SHELTERED LOCATION. DRIVING HAS BECOME VERY HAZARDOUS AROUND SOUTH 
BREVARD COUNTY    

ADDITIONAL RAINFALL ACCUMULATIONS OF FIVE TO TEN INCHES WILL BE 
POSSIBLE ACROSS SOUTHERN BREVARD COUNTY. EVENT RAINFALL TOTALS OF 
THIRTY INCHES OF RAINFALL IS POSSIBLE. 

THIS EPIC RAINFALL OCCURRENCE WILL LEAD TO THE LIKELIHOOD OF WATER 
ENTERING HOMES AND BUSINESSES. ROAD DETOURS AND CLOSURES ARE 
OCCURRING AROUND MELBOURNE...PALM BAY...EAU GALLIE...VIERA AND 
SUNTREE. 

HEED THE WORD OF LOCAL AUTHORITIES IF YOU ARE TOLD TO EVACUATE.

FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF 
FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. 
WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN 

LAT...LON 2788 8047 2794 8052 2787 8049 2784 8067
      2785 8087 2835 8087 2836 8072 2834 8072
      2836 8071 2836 8065 2827 8066 2823 8063
      2828 8061 2834 8064 2836 8061 2820 8059
      2808 8056 2788 8045

$$

PENDERGRAST

000 
WGUS72 KMLB 201841
FFSMLB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
241 PM EDT WED AUG 20 2008

FLC009-202030-
/O.CON.KMLB.FF.W.0008.000000T0000Z-080820T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BREVARD FL-
241 PM EDT WED AUG 20 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
SOUTHERN BREVARD COUNTY...

DRIVING HAZARDS WILL CONTINUE INTO THIS EVENING DUE TO ACCUMULATION 
OF STANDING WATER IN MANY AREAS. THERE IS A THREAT TO DRIVERS  
PARTICULARLY ALONG LOW LYING ROADWAYS AND ROADS THAT ARE LINED WITH 
CULVERTS AND DITCHES. 

WHILE DRIVING YOU MAY BELIEVE YOU ARE ON THE ROADWAY...HOWEVER YOU 
MAY LOSE CONTACT WITH THE ROAD SURFACE. IF YOU STRAY INTO A WATER 
FILLED DITCH OR HIT A SUBMERGED OBSTRUCTION YOUR CAR WILL BE 
DISABLED...OR EVEN WORSE YOU MAY BECOME TRAPPED WITHIN A SUBMERGED 
VEHICLE. 

IF YOU DO NOT NEED TO BE ON THE ROADS THIS AFTERNOON PLEASE STAY IN 
A SHELTERED LOCATION. DRIVING HAS BECOME VERY HAZARDOUS AROUND MUCH 
OF SOUTH BREVARD COUNTY    

ADDITIONAL RAINFALL ACCUMULATIONS OF THREE TO SIX INCHES WILL BE 
POSSIBLE ACROSS SOUTHERN BREVARD COUNTY BEFORE FAY FINALLY DRAWS 
AWAY FROM THE SPACE COAST TONIGHT.

THIS EPIC RAINFALL OCCURRENCE WILL LEAD TO THE LIKELIHOOD OF WATER 
ENTERING HOMES AND BUSINESSES. ROAD DETOURS AND CLOSURES ARE 
OCCURRING AROUND MELBOURNE...PALM BAY...EAU GALLIE...VIERA AND 
SUNTREE. 

HEED THE WORD OF LOCAL AUTHORITIES IF YOU ARE TOLD TO EVACUATE.

FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF 
FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. 
WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN 

LAT...LON 2788 8047 2794 8052 2787 8049 2784 8067
      2785 8087 2835 8087 2836 8072 2834 8072
      2836 8071 2836 8065 2827 8066 2823 8063
      2828 8061 2834 8064 2836 8061 2820 8059
      2808 8056 2788 8045

$$

PENDERGRAST

000 
WGUS52 KMLB 202031
FFWMLB
FLC009-210030-
/O.EXT.KMLB.FF.W.0008.000000T0000Z-080821T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
431 PM EDT WED AUG 20 2008

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHERN BREVARD COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...MERRITT ISLAND...COCOA....COCOA
  BEACH...ROCKLEDGE...SATELLITE BEACH...INDIALANTIC...MELBOURNE
  ...WEST MELBOURNE...PALM BAY...MALABAR...GRANT...VALKARIA...
  MICCO...MELBOURNE BEACH...FLORIDANA BEACH...BAREFOOT BAY...

* UNTIL 830 PM EDT

* AT 430 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  CONTINUED WIDESPREAD FLOODING FROM TORRENTIAL RAINFALL PRODUCING
  RECORD RAINFALL AMOUNTS ACROSS ALL OF SOUTHERN BREVARD COUNTY.

SEVERAL LOCATIONS HAVE REPORTED RAINFALL TOTALS OF OVER ONE FOOT...
WITH AN WEATHER SPOTTER IN THE WINDOVER FARMS AREA OF NORTH MELBOURNE
REPORTING ALMOST 25 INCHES OF RAIN.

ADDITIONAL RAINFALL AMOUNTS OF 3 TO 6 INCHES ARE POSSIBLE IN THE 
WARNED AREA THROUGH THIS EVENING.

THIS IS A HISTORIC AND POTENTIALLY LIFE-THREATENING FLOODING EVENT 
ACROSS THE AREA

A DRIVING HAZARD WILL CONTINUE TO EXIST INTO THIS EVENING DUE TO 
ACCUMULATED STANDING WATER IN MANY AREAS ALTHOUGH FLOWING WATER 
MAY NOT BE PRESENT THERE IS A THREAT PARTICULARLY ALONG LOW LYING 
ROADWAYS AND ROADS THAT ARE LINED WITH CULVERTS AND DITCHES. 

YOU MAY BELIEVE YOU ARE ON THE ROADWAY HOWEVER YOU MAY ACTUALLY LOSE 
CONTACT WITH THE ROAD SURFACE HOWEVER YOU CAN STRAY INTO A WATER 
FILLED DITCH OR HIT A SUBMERGED OBSTRUCTION. 

IF YOU DO NOT NEED TO BE ON THE ROADS THIS AFTERNOON PLEASE STAY IN 
A SHELTERED LOCATION DRIVING IS VERY HAZARDOUS AROUND SOUTH 
BREVARD COUNTY 

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY 
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN 
MELBOURNE.

LAT...LON 2788 8047 2794 8052 2787 8049 2784 8067
      2785 8087 2835 8087 2836 8072 2834 8072
      2836 8071 2836 8065 2827 8066 2823 8063
      2828 8061 2834 8064 2836 8061 2820 8059
      2808 8056 2788 8045

$$


CRISTALDI

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 8:57 PM EDT	Flash Flood Warning	MLB	Brevard	2 hr
Aug 19, 9:08 PM EDT	Areal Flood Warning	MLB	Osceola	6 hr
Aug 19, 10:52 PM EDT	Hurricane Watch	MLB		14 hr
Aug 19, 11:28 PM EDT	Areal Flood Warning	MLB	Brevard, Indian River, Martin, Okeechobee, Osceola, Saint Lucie	7 hr
Aug 20, 5:39 AM EDT	Flash Flood Warning	MLB	Brevard	7 hr
Aug 20, 6:10 AM EDT	Areal Flood Warning	MLB	Brevard, Indian River, Martin, Okeechobee, Osceola, Saint Lucie and 1 more	8 hr
Aug 20, 6:24 AM EDT	Wind Advisory	MLB	Okeechobee	36 hr
Aug 20, 5:08 PM EDT	Flash Flood Warning	MLB	Indian River	3 hr
Aug 20, 5:40 PM EDT	Flash Flood Warning	MLB	Brevard	3 hr

Nearby

Flash Flood Warnings in Florida, 2008 Every flash flood warning in 2008

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.