Alert archive / Florida / Flash Flood Warnings in 2014
Flash Flood Warning 5, NWS Miami, FL
NWS Miami, FL issued this flash flood warning at Oct 21, 2014, 3:55 PM EDT for Palm Beach 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 outline as issued.
The facts
- Issued
- Oct 21, 2014, 3:55 PM EDT (19:55 UTC)
- Expired
- Oct 21, 2014, 7:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Palm Beach County, FL
The radar
The Miami radar (KAMX), 129 km from the middle of the area, began a volume at 19:58 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
Miami, FL (KMFL), launched 12:00Z, 7.9 hours before the alert went out and 103 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.
- Mixed-layer CAPE
- 1314 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 707 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
932
WGUS52 KMFL 211955
FFWMFL
FLC099-212300-
/O.NEW.KMFL.FF.W.0005.141021T1955Z-141021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
355 PM EDT TUE OCT 21 2014
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL PALM BEACH COUNTY IN SOUTHEASTERN FLORIDA...
* UNTIL 700 PM EDT
* AT 352 PM EDT...THE PUBLIC REPORTED LOCALLY 6 INCHES OF RAINFALL
THIS AFTERNOON. THUNDERSTORMS WITH HEAVY RAINFALL WILL CONTINUE
FOR THE NEXT FEW HOURS. FLASH FLOODING MAY LEAD TO ROAD CLOSURES.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WEST PALM BEACH...PALM BEACH GARDENS...LAKE WORTH...RIVIERA
BEACH...PALM BEACH...GREENACRES...PALM SPRINGS...NORTH PALM
BEACH...LAKE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE PONDING OF WATER IN
URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER
POOR DRAINAGE AREAS AND LOW LYING SPOTS. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2662 8004 2670 8005 2669 8005 2661 8004
2660 8004 2660 8018 2684 8011 2683 8005
2680 8004 2683 8004 2678 8003 2677 8003
2680 8005 2671 8005 2677 8004
$$3 follow-up statements
096
WGUS72 KMFL 212032
FFSMFL
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
432 PM EDT TUE OCT 21 2014
FLC099-212300-
/O.CON.KMFL.FF.W.0005.000000T0000Z-141021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PALM BEACH FL-
432 PM EDT TUE OCT 21 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
EAST CENTRAL PALM BEACH COUNTY...
AT 428 PM EDT...THE PUBLIC REPORTED HEAVY RAIN FROM THUNDERSTORMS
NEAR THE PORT OF PALM BEACH, WHERE NEARLY 9 INCHES OF RAIN WAS
REPORTED.
FLASH FLOODING IS MAY LEAD TO ROAD CLOSURES.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WEST PALM BEACH...PALM BEACH GARDENS...LAKE WORTH...RIVIERA BEACH...
PALM BEACH...GREENACRES...PALM SPRINGS...NORTH PALM BEACH...LAKE
PARK...ATLANTIS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE PONDING OF WATER IN
URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER
POOR DRAINAGE AREAS AND LOW LYING SPOTS. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2662 8004 2670 8005 2669 8005 2661 8004
2660 8004 2660 8018 2684 8011 2683 8005
2680 8004 2683 8004 2678 8003 2677 8003
2680 8005 2671 8005 2677 8004
$$900
WGUS72 KMFL 212124
FFSMFL
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
524 PM EDT TUE OCT 21 2014
FLC099-212300-
/O.CON.KMFL.FF.W.0005.000000T0000Z-141021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PALM BEACH FL-
524 PM EDT TUE OCT 21 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
EAST CENTRAL PALM BEACH COUNTY...
AT 519 PM EDT...THE PUBLIC AND MEDIA STILL REPORTED HIGH WATER
REMAINING ALONG SOME SIDE STREETS IN WEST PALM BEACH, ALTHOUGH THE
HEAVIEST RAIN HAS ENDED. USE CAUTION IF TRAVELING TONIGHT. A TOTAL
OF 9 INCHES OF RAINFALL WAS MEASURED JUST SOUTH SOUTHEAST OF THE
PORT OF PALM BEACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2662 8004 2670 8005 2669 8005 2661 8004
2660 8004 2660 8018 2684 8011 2683 8005
2680 8004 2683 8004 2678 8003 2677 8003
2680 8005 2671 8005 2677 8004
$$533
WGUS72 KMFL 212150
FFSMFL
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
550 PM EDT TUE OCT 21 2014
FLC099-212159-
/O.CAN.KMFL.FF.W.0005.000000T0000Z-141021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PALM BEACH FL-
550 PM EDT TUE OCT 21 2014
...THE FLASH FLOOD WARNING FOR EAST CENTRAL PALM BEACH COUNTY IS
CANCELLED...
HIGH WATER IS RECEDING. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES,
AND TRAVEL SLOWLY ALONG ROADWAYS THAT STILL HAVE STANDING WATER.
LAT...LON 2662 8004 2670 8005 2669 8005 2661 8004
2660 8004 2660 8018 2684 8011 2683 8005
2680 8004 2683 8004 2678 8003 2677 8003
2680 8005 2671 8005 2677 8004
$$The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 21, 12:58 PM EDT | Special Weather Statement | MFL | Martin | 17 min |
| Oct 21, 1:25 PM EDT | Special Weather Statement | MFL | Palm Beach | 65 min |
| Oct 21, 1:45 PM EDT | Areal Flood Advisory | MFL | Palm Beach | 3 hr |
| Oct 21, 3:03 PM EDT | Areal Flood Advisory | MFL | Palm Beach | 3 hr |
| Oct 21, 4:22 PM EDT | Special Marine Warning | MFL | 23 min | |
| Oct 21, 4:46 PM EDT | Special Marine Warning | MFL | 59 min |
Nearby
Flash Flood Warnings in Florida, 2014Every flash flood warning in 2014
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.