Alert archive / Florida / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Miami, FL

August 4, 2014Collier County, Florida

NWS Miami, FL issued this flash flood warning at Aug 4, 2014, 2:28 PM EDT for Collier County, Florida. It was in force for 3 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 4, 2014, 2:28 PM EDT (18:28 UTC)
Expired: Aug 4, 2014, 5:30 PM EDT
In force: 3 hr
Issued by: NWS Miami, FL
Area: Storm-based polygon
Flood severity: None

County Collier County, FL

The radar

The Miami radar (KAMX), 148 km from the middle of the area, began a volume at 18:30 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 4, 3:35 PM EDT	HEAVY RAIN 6.14	2 Ene Naples, FL	6.14 INCHES OF RAIN RECORDED SO FAR TODAY AT NAPLES MUNICIPAL AIRPORT. STILL RAINING.

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, 6.5 hours before the alert went out and 152 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: 24 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: 1 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.

319 
WGUS52 KMFL 041828
FFWMFL
FLC021-042130-
/O.NEW.KMFL.FF.W.0004.140804T1828Z-140804T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
228 PM EDT MON AUG 4 2014

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL COLLIER COUNTY IN SOUTHWEST FLORIDA...

* UNTIL 530 PM EDT
    
* AT 224 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS 
  PRODUCING HEAVY RAIN ACROSS THE NAPLES METRO AREAS. FLASH FLOODING 
  IS EXPECTED TO BEGIN SHORTLY. EMERGENCY MANAGERS IN COLLIER COUNTY 
  AND SPOTTER REPORTS INDICATE RAINFALL ACCUMULATIONS OVER 4 INCHES 
  WITH ADDITIONAL HEAVY RAINS POSSIBLE OVER THE NEXT COUPLE OF HOURS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NAPLES...EAST NAPLES AND GOLDEN GATE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 2618 8172 2614 8172 2615 8181 2620 8181

$$

60

1 follow-up statement

323 
WGUS72 KMFL 042121
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
521 PM EDT MON AUG 4 2014

FLC021-042129-
/O.CAN.KMFL.FF.W.0004.000000T0000Z-140804T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLLIER FL-
521 PM EDT MON AUG 4 2014

...THE FLASH FLOOD WARNING FOR WEST CENTRAL COLLIER COUNTY IS
CANCELLED...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A 
THREAT TO LIFE OR PROPERTY. THE HEAVY RAIN THAT PROMPTED THE WARNING 
HAS ENDED SO THE FLASH FLOOD WARNING IS CANCELLED. PLEASE CONTINUE 
TO HEED ANY ROAD CLOSURES. LIGHT RAIN WILL CONTINUE FOR THE NEXT 
COUPLE OF HOURS AND THERE COULD BE SOME HEAVIER EMBEDDED SHOWERS 
UNTIL THE EARLY EVENING BUT ADDITIONAL RAINFALL TOTALS ARE EXPECTED 
TO BE LESS THAN AN INCH.

LAT...LON 2618 8172 2614 8172 2615 8181 2620 8181

$$

KOB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 9:03 PM EDT	Special Marine Warning	MFL		57 min
Aug 3, 10:57 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	2 hr
Aug 4, 12:44 AM EDT	Special Marine Warning	MFL		31 min
Aug 4, 1:32 PM EDT	Special Weather Statement	MFL	Collier	43 min
Aug 4, 1:55 PM EDT	Areal Flood Advisory	MFL	Collier	3 hr
Aug 4, 3:56 PM EDT	Areal Flood Advisory	MFL	Palm Beach	3 hr
Aug 4, 4:14 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	3 hr

Nearby

Flash Flood Warnings in Florida, 2014 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.