Alert archive / Florida / Flash Flood Warnings in 2013

Flash Flood Warning 3, NWS Miami, FL

May 3, 2013Broward County, Florida

NWS Miami, FL issued this flash flood warning at May 3, 2013, 5:47 PM EDT for Broward County, Florida. It was in force for 3 hr. 2 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
May 3, 2013, 5:47 PM EDT (21:47 UTC)
Expired
May 3, 2013, 8:30 PM EDT
In force
3 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Flood severity
None

County Broward County, FL

The radar

The Miami radar (KAMX), 76 km from the middle of the area, began a volume at 21:49 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
May 3, 6:00 PM EDTFLASH FLOOD2 Wnw Pompano Beach Air, FLVEHICLES STALLED NEAR INTERSECTION OF W COPANS RD AND POWERLINE RD.
May 3, 6:09 PM EDTFLASH FLOOD3 Wnw Pompano Beach, FLPATROL CAR STALLED OUT AT THE INTERSECTION OF NW 27TH AVE AND NW 9TH STREET.

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

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 9.8 hours before the alert went out and 50 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, Miami, FL at 12:00Z on 2013-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 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, Miami, FL at 12:00Z on 2013-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.19395878Sfc1 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
164 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
741 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
58 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.

679 
WGUS52 KMFL 032147
FFWMFL
FLC011-040030-
/O.NEW.KMFL.FF.W.0003.130503T2147Z-130504T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
547 PM EDT FRI MAY 3 2013

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL BROWARD COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 830 PM EDT

* AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH TORRENTIAL RAINS CENTERED AROUND THE COCONUT
  CREEK AND POMPANO BEACH AREAS. RAINFALL RATES ARE PROJECTED TO
  BE AROUND 6 INCHES PER HOUR. RADAR INDICATES THAT OVER 3 INCHES
  OF RAIN HAS FALLEN JUST WITHIN THE PAST HALF HOUR. THE EXCESSIVE
  RAINFALL RATES, ALONG WITH THE SATURATED GROUND FROM THE RAINS 
  OF THE PAST FEW DAYS, WILL LEAD TO FLASH FLOODING ACROSS THE
  AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  POMPANO BEACH AND COCONUT CREEK.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 5 INCHES IS EXPECTED AS THE
THUNDERSTORMS ARE NEARLY STATIONARY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 2628 8010 2620 8011 2620 8020 2628 8019

$$

GREGORIA
3 follow-up statements
111 
WGUS72 KMFL 032216
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
616 PM EDT FRI MAY 3 2013

FLC011-040030-
/O.CON.KMFL.FF.W.0003.000000T0000Z-130504T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWARD FL-
616 PM EDT FRI MAY 3 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR EAST
CENTRAL BROWARD COUNTY...

AT 610 PM EDT...FLASH FLOODING WAS REPORTED ALONG WEST COPANS ROAD 
BETWEEN INTERSTATE 95 AND THE FLORIDA TURNPIKE. STALLED VEHICLES
DUE TO SERIOUS FLOODING WAS REPORTED NEAR THE INTERSECTION OF
COPANS AND POWERLINE ROAD. ALSO, THE BROWARD COUNTY SHERIFFS 
OFFICE REPORTED A PATROL CAR STALLING OUT ON NW 27TH AVENUE AND 
NW 9TH STREET. ALTHOUGH THE RAIN IS ENDING, RUNOFF WILL CONTINUE TO
LEAD TO STREET FLOODING ACROSS THE COCONUT CREEK AND POMPANO BEACH
AREAS, ALONG WITH THE POTENTIAL FOR ISOLATED STRUCTURAL FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COCONUT CREEK
AND POMPANO BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

&&

LAT...LON 2628 8010 2620 8011 2620 8020 2628 8019

$$

GREGORIA
833 
WGUS72 KMFL 032250
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
650 PM EDT FRI MAY 3 2013

FLC011-040030-
/O.CON.KMFL.FF.W.0003.000000T0000Z-130504T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWARD FL-
650 PM EDT FRI MAY 3 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR EAST
CENTRAL BROWARD COUNTY...

AT 644 PM EDT...ALTHOUGH THE RAIN HAS ENDED, FLOODING CONTINUES ACROSS
THE AREA FROM THE RECENT TORRENTIAL RAINFALL. POMPANO BEACH LAW
ENFORCEMENT JUST REPORTED THAT THE INTERSECTION OF COPANS ROAD AND
POWERLINE ROAD IS COMPLETELY FLOODED WITH VEHICLES STALLED OUT. 
ALSO FLOODED IS POWERLINE ROAD BETWEEN NW 15TH STREET AND COPANS 
ROAD. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COCONUT CREEK
AND POMPANO BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. 

&&

LAT...LON 2628 8010 2620 8011 2620 8020 2628 8019

$$

GREGORIA
064 
WGUS72 KMFL 032347
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
747 PM EDT FRI MAY 3 2013

FLC011-032353-
/O.CAN.KMFL.FF.W.0003.000000T0000Z-130504T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWARD FL-
747 PM EDT FRI MAY 3 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EAST CENTRAL
BROWARD COUNTY...

FLOOD WATERS CONTINUE TO RECEDE. POMPANO BEACH LAW ENFORCEMENT
REPORTED THAT THE FLOOD WATERS ACROSS THE AREA CONTINUE TO 
IMPROVE, ALTHOUGH THERE IS STILL SOME STANDING WATER AT THE
INTERSECTION OF COPANS AND POWERLINE. ADDITIONAL FLASH FLOODING
IS NO LONGER EXPECTED. DRIVE WITH CAUTION.

LAT...LON 2628 8010 2620 8011 2620 8020 2628 8019

$$

GREGORIA

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 8:16 PM EDTSpecial Marine WarningMFL59 min
May 3, 1:12 AM EDTDense Fog AdvisoryMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more7 hr
May 3, 2:21 AM EDTSpecial Marine WarningMFL84 min
May 3, 3:00 AM EDTAreal Flood AdvisoryMFLPalm Beach2 hr
May 3, 3:04 AM EDTSpecial Weather StatementMFLPalm Beach41 min
May 3, 3:16 AM EDTSpecial Weather StatementMFLMartin44 min
May 3, 3:30 AM EDTSevere Thunderstorm WarningMFLPalm Beach30 min
May 3, 3:42 AM EDTSpecial Marine WarningMFL93 min
May 3, 5:09 AM EDTSpecial Marine WarningMFL96 min
May 3, 5:10 AM EDTFlood WatchMFLBroward, Miami-Dade, Palm Beach15 hr
May 3, 6:27 AM EDTSpecial Marine WarningMFL93 min
May 3, 3:21 PM EDTSpecial Marine WarningMFL24 min
May 3, 3:28 PM EDTAreal Flood AdvisoryMFLMiami-Dade2 hr
May 3, 3:46 PM EDTSpecial Marine WarningMFL59 min
May 3, 5:27 PM EDTAreal Flood AdvisoryMFLBroward2 hr
May 3, 5:29 PM EDTSpecial Marine WarningMFL61 min
May 3, 6:27 PM EDTSpecial Weather StatementMFLPalm Beach33 min
May 3, 6:54 PM EDTSpecial Marine WarningMFL66 min
May 3, 6:57 PM EDTSpecial Weather StatementMFLPalm Beach18 min
May 3, 7:37 PM EDTSpecial Weather StatementMFLMartin23 min

Nearby

Flash Flood Warnings in Florida, 2013Every flash flood warning in 2013

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.