Alert archive / Florida / Flash Flood Warnings in 2017

Flash Flood Warning 7, NWS Miami, FL

September 10, 2017Collier County, Florida

NWS Miami, FL issued this flash flood warning at Sep 10, 2017, 3:12 PM EDT for Collier 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
Sep 10, 2017, 3:12 PM EDT (19:12 UTC)
Expired
Sep 10, 2017, 6:00 PM EDT
In force
3 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

County Collier County, FL

The radar

The Miami radar (KAMX), 125 km from the middle of the area, began a volume at 19:11 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

Tampa Bay, FL (KTBW), launched 12:00Z, 7.2 hours before the alert went out and 207 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, Tampa Bay, FL at 12:00Z on 2017-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 103 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, Tampa Bay, FL at 12:00Z on 2017-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
103 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

417 
WGUS52 KMFL 101912
FFWMFL
FLC021-102200-
/O.NEW.KMFL.FF.W.0007.170910T1912Z-170910T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Miami FL
312 PM EDT SUN SEP 10 2017

...FLASH FLOOD EMERGENCY FOR COLLIER COUNTY...

The National Weather Service in Miami has issued a

* Flash Flood Warning for...
  Southwestern Collier County in southwestern Florida...

* Until 600 PM EDT

* At 300 PM EDT, Doppler radar indicated the center of Hurricane 
  Irma was near Marco Island. Flash flooding from life-threatening 
  storm surge is expected to begin shortly along coastal Collier 
  County.

  This is a FLASH FLOOD EMERGENCY for Collier County. This is a 
  PARTICULARLY DANGEROUS SITUATION. EVACUATE VERTICALLY NOW! 

* Some locations that will experience flooding include...
  Naples, Marco Island, Chokoloskee, and Everglades City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an extremely dangerous and life-threatening situation. Do 
not attempt to travel! Evacuate vertically by going to higher levels 
of your structure.

&&

LAT...LON 2633 8184 2633 8182 2632 8182 2632 8166
      2634 8166 2581 8121 2580 8127 2578 8127
      2573 8134 2575 8141 2579 8144 2577 8153
      2581 8161 2578 8166 2581 8175 2599 8184

$$

WFO Miami
1 follow-up statement
142 
WGUS72 KMFL 102030
FFSMFL

Flash Flood Statement
National Weather Service Miami FL
430 PM EDT SUN SEP 10 2017

FLC021-102200-
/O.CON.KMFL.FF.W.0007.000000T0000Z-170910T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Collier FL-
430 PM EDT SUN SEP 10 2017

...THIS IS A FLASH FLOOD EMERGENCY FOR COLLIER COUNTY...

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR
SOUTHWESTERN COLLIER COUNTY...

At 430 PM EDT, Automated tide gauges indicated a rapid rise in water 
levels as the center of Hurricane Irma was near Naples. Flash 
flooding from life-threatening storm surge is expected to begin 
shortly or is already occurring along coastal Collier County.

This is a FLASH FLOOD EMERGENCY for Collier County. This is a 
PARTICULARLY DANGEROUS SITUATION. EVACUATE VERTICALLY NOW!

Some locations that will experience flooding include...
Naples, Marco Island, Chokoloskee, and Everglades City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an extremely dangerous and life-threatening situation. Do 
not attempt to travel! Evacuate vertically by going to higher levels 
of your structure.

&&

LAT...LON 2633 8184 2633 8182 2632 8182 2632 8166
      2634 8166 2581 8121 2580 8127 2578 8127
      2573 8134 2575 8141 2579 8144 2577 8153
      2581 8161 2578 8166 2581 8175 2599 8184

$$

WFO Miami

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 8:14 PM EDTSpecial Marine WarningMFL46 min
Sep 10, 2:23 AM EDTSpecial Marine WarningMFL37 min
Sep 10, 2:45 AM EDTSpecial Marine WarningMFL30 min
Sep 10, 3:05 AM EDTSpecial Marine WarningMFL25 min
Sep 10, 3:29 AM EDTSpecial Marine WarningMFL46 min
Sep 10, 3:46 AM EDTTornado WarningMFLBroward, Palm Beach29 min
Sep 10, 4:19 AM EDTSpecial Marine WarningMFL26 min
Sep 10, 4:44 AM EDTAreal Flood WarningMFLBroward, Collier, Hendry, Miami-Dade, Monroe12 hr
Sep 10, 4:54 AM EDTSpecial Marine WarningMFL36 min
Sep 10, 6:14 AM EDTSpecial Marine WarningMFL16 min
Sep 10, 6:21 AM EDTTornado WarningMFLPalm Beach28 min
Sep 10, 6:55 AM EDTSpecial Marine WarningMFL35 min
Sep 10, 7:16 AM EDTSpecial Marine WarningMFL29 min
Sep 10, 7:28 AM EDTSpecial Marine WarningMFL17 min
Sep 10, 7:35 AM EDTTornado WarningMFLPalm Beach14 min
Sep 10, 7:36 AM EDTTornado WarningMFLBroward, Miami-Dade24 min
Sep 10, 7:52 AM EDTSpecial Marine WarningMFL38 min
Sep 10, 8:08 AM EDTSpecial Marine WarningMFL37 min
Sep 10, 8:29 AM EDTAreal Flood WarningMFLBroward, Collier, Glades, Hendry, Palm Beach12 hr
Sep 10, 8:37 AM EDTAreal Flood WarningMFLBroward, Collier, Hendry, Palm Beach12 hr
Sep 10, 9:17 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe88 min
Sep 10, 9:42 AM EDTTornado WarningMFLPalm Beach18 min
Sep 10, 9:44 AM EDTSpecial Marine WarningMFL31 min
Sep 10, 10:13 AM EDTSpecial Marine WarningMFL32 min
Sep 10, 10:45 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe45 min
Sep 10, 10:57 AM EDTRiver Flood WarningMFLGlades13 days
Sep 10, 11:48 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe87 min
Sep 10, 12:25 PM EDTExtreme Wind WarningMFLCollier3 hr
Sep 10, 1:13 PM EDTSpecial Weather StatementMFLMiami-Dade, Monroe92 min
Sep 10, 1:23 PM EDTSpecial Marine WarningMFL37 min
Sep 10, 1:30 PM EDTSpecial Weather StatementMFLMiami-Dade90 min
Sep 10, 1:48 PM EDTSpecial Marine WarningMFL27 min
Sep 10, 1:49 PM EDTTornado WarningMFLBroward, Miami-Dade, Palm Beach26 min
Sep 10, 1:55 PM EDTSpecial Weather StatementMFLMiami-Dade65 min
Sep 10, 2:13 PM EDTSpecial Marine WarningMFL32 min
Sep 10, 2:24 PM EDTTornado WarningMFLBroward, Palm Beach21 min
Sep 10, 2:40 PM EDTTornado WarningMFLPalm Beach20 min
Sep 10, 3:10 PM EDTSpecial Marine WarningMFL95 min
Sep 10, 3:15 PM EDTTornado WarningMFLMiami-Dade15 min
Sep 10, 3:27 PM EDTExtreme Wind WarningMFLCollier, Hendry2 hr
Sep 10, 3:29 PM EDTSpecial Marine WarningMFL31 min
Sep 10, 3:48 PM EDTTornado WarningMFLPalm Beach27 min
Sep 10, 3:53 PM EDTTornado WarningMFLBroward, Palm Beach37 min
Sep 10, 4:23 PM EDTSpecial Marine WarningMFL37 min
Sep 10, 5:14 PM EDTSpecial Marine WarningMFL16 min
Sep 10, 5:23 PM EDTSpecial Marine WarningMFL97 min
Sep 10, 6:00 PM EDTAreal Flood WarningMFLCollier3 hr
Sep 10, 7:00 PM EDTSpecial Marine WarningMFL30 min
Sep 10, 7:37 PM EDTSpecial Marine WarningMFL23 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.