Alert archive / Florida / Flash Flood Warnings in 2023

Flash Flood Warning 13, NWS Miami, FL

June 10, 2023Broward County, Florida

NWS Miami, FL issued this flash flood warning at Jun 10, 2023, 6:03 PM EDT for Broward County, Florida. It was in force for 117 min. 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: Jun 10, 2023, 6:03 PM EDT (22:03 UTC)
Expired: Jun 10, 2023, 8:00 PM EDT
In force: 117 min
Issued by: NWS Miami, FL
Area: Storm-based polygon
Flood severity: None

County Broward County, FL

The radar

The Miami radar (KAMX), 45 km from the middle of the area, began a volume at 22:06 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
Jun 10, 6:58 PM EDT	FLOOD	2 Wsw Southwest Ranches, FL	Social media report of a partially flooded parking lot just west of I-75 and Sheridan Street. However no obstruction to vehicle movement was observed in the video provided. 3-4 inches of rainfall was estimated to have fallen within an hour as a stationary stor

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, 10.1 hours before the alert went out and 24 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: 625 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 975 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

503 
WGUS52 KMFL 102203
FFWMFL
FLC011-110000-
/O.NEW.KMFL.FF.W.0013.230610T2203Z-230611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Miami FL
603 PM EDT Sat Jun 10 2023

The National Weather Service in Miami has issued a

* Flash Flood Warning for...
  South Central Broward County in southeastern Florida...

* Until 800 PM EDT.

* At 603 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. The expected rainfall rate is 1 to 2 inches in 1 
  hour. Additional rainfall amounts of 1 to 3 inches are possible in 
  the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Pembroke Pines, Miramar, Davie, Cooper City and Sunshine Acres.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 2604 8042 2607 8029 2597 8032 2597 8042

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

CWC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 5:22 PM EDT	Special Weather Statement	MFL	Broward	38 min
Jun 10, 5:41 PM EDT	Special Weather Statement	MFL	Palm Beach	49 min
Jun 10, 5:45 PM EDT	Areal Flood Advisory	MFL	Broward	18 min
Jun 10, 5:58 PM EDT	Special Weather Statement	MFL	Broward	47 min
Jun 10, 6:19 PM EDT	Special Weather Statement	MFL	Miami-Dade	26 min
Jun 10, 6:28 PM EDT	Special Weather Statement	MFL	Broward	47 min
Jun 10, 7:14 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	2 hr
Jun 10, 7:16 PM EDT	Special Weather Statement	MFL	Palm Beach	44 min
Jun 10, 7:23 PM EDT	Special Weather Statement	MFL	Glades	37 min

Nearby

Flash Flood Warnings in Florida, 2023 Every flash flood warning in 2023

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.