Alert archive / Florida / Flash Flood Warnings in 2017

Flash Flood Warning 3, NWS Miami, FL

June 7, 2017Broward County, Palm Beach County, Florida

NWS Miami, FL issued this flash flood warning at Jun 7, 2017, 1:47 AM EDT for Broward County, 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
Jun 7, 2017, 1:47 AM EDT (05:47 UTC)
Expired
Jun 7, 2017, 4:45 AM EDT
In force
3 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Flood severity
None

Counties Broward County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 89 km from the middle of the area, began a volume at 05:49 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.

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 5.8 hours before the alert went out and 63 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 00:00Z on 2017-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1852 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, Miami, FL at 00:00Z on 2017-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 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
1852 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
875 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
277 m²/s²
Significant tornado parameter
1.8
Supercell composite
11.8

Open this sounding in Storm Lab

The text

As transmitted.

872 
WGUS52 KMFL 070547
FFWMFL
FLC011-099-070845-
/O.NEW.KMFL.FF.W.0003.170607T0547Z-170607T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Miami FL
147 AM EDT WED JUN 7 2017

The National Weather Service in Miami has issued a

* Flash Flood Warning for...
  Northeastern Broward County in southeastern Florida...
  Southeastern Palm Beach County in southeastern Florida...

* Until 445 AM EDT

* At 142 AM EDT, Doppler radar indicated training thunderstorms 
  peoducing heavy rain across the warned area. Up to three inches of 
  rain have already fallen. Flash flooding is already occurring.

* Some locations that will experience flooding include...
  Fort Lauderdale, Coral Springs, Pompano Beach, Davie and
  Plantation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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 2654 8003 2611 8009 2607 8019 2606 8041
      2665 8029 2664 8004

$$

67/MT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 8:10 PM EDTSpecial Marine WarningMFL95 min
Jun 6, 8:12 PM EDTAreal Flood WarningMFLCollier, Hendry6 hr
Jun 6, 8:14 PM EDTSpecial Marine WarningMFL91 min
Jun 6, 8:32 PM EDTSpecial Marine WarningMFL58 min
Jun 6, 8:40 PM EDTSpecial Weather StatementMFLHendry50 min
Jun 6, 10:32 PM EDTSpecial Weather StatementMFLBroward, Miami-Dade43 min
Jun 6, 10:57 PM EDTSpecial Marine WarningMFL48 min
Jun 7, 4:07 AM EDTSmall Craft AdvisoryMFL16 hr
Jun 7, 4:51 AM EDTAreal Flood WarningMFLBroward, Palm Beach6 hr
Jun 7, 5:59 AM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade3 hr
Jun 7, 9:10 AM EDTAreal Flood AdvisoryMFLCollier9 hr
Jun 7, 9:40 AM EDTAreal Flood AdvisoryMFLMiami-Dade3 hr
Jun 7, 10:35 AM EDTAreal Flood AdvisoryMFLBroward, Palm Beach3 hr
Jun 7, 12:36 PM EDTSpecial Marine WarningMFL114 min
Jun 7, 12:48 PM EDTSpecial Weather StatementMFLCollier, Glades, Hendry42 min
Jun 7, 1:25 PM EDTSpecial Weather StatementMFLGlades, Hendry65 min
Jun 7, 1:33 PM EDTSpecial Marine WarningMFL57 min
Jun 7, 2:21 PM EDTSpecial Marine WarningMFL84 min
Jun 7, 2:21 PM EDTSpecial Marine WarningMFL54 min
Jun 7, 2:24 PM EDTSpecial Weather StatementMFLHendry51 min
Jun 7, 2:33 PM EDTSevere Thunderstorm WarningMFLCollier, Hendry, Monroe43 min
Jun 7, 3:05 PM EDTSpecial Weather StatementMFLPalm Beach40 min
Jun 7, 3:15 PM EDTSpecial Weather StatementMFLCollier, Hendry45 min
Jun 7, 3:39 PM EDTSpecial Marine WarningMFL96 min
Jun 7, 3:44 PM EDTSpecial Marine WarningMFL91 min
Jun 7, 4:11 PM EDTAreal Flood WarningMFLCollier5 hr
Jun 7, 4:42 PM EDTSpecial Weather StatementMFLBroward, Palm Beach48 min
Jun 7, 5:23 PM EDTAreal Flood WarningMFLBroward, Palm Beach6 hr
Jun 7, 5:38 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade6 hr
Jun 7, 6:35 PM EDTSpecial Marine WarningMFL55 min
Jun 7, 6:39 PM EDTSpecial Marine WarningMFL66 min
Jun 7, 6:50 PM EDTSpecial Weather StatementMFLMiami-Dade25 min
Jun 7, 6:58 PM EDTSpecial Marine WarningMFL92 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.