Alert archive / Florida / Tornado Warnings in 2005

Tornado Warning 10, NWS Miami, FL

September 20, 2005Collier County, Florida

NWS Miami, FL issued this tornado warning at Sep 20, 2005, 5:01 PM EDT for Collier County, Florida. It was in force for 44 min. 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 20, 2005, 5:01 PM EDT (21:01 UTC)
Expired
Sep 20, 2005, 5:45 PM EDT
In force
44 min
Issued by
NWS Miami, FL
Area
Counties, with a storm outline in the text

County Collier County, FL

The radar

The Miami radar (KAMX), 114 km from the middle of the area, began a volume at 21:03 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 20, 4:30 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 9.0 hours before the alert went out and 122 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 12:00Z on 2005-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 341 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2005-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
341 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS52 KMFL 202103
TORMFL
FLC021-087-202145-
/O.NEW.KMFL.TO.W.0010.050920T2101Z-050920T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
501 PM EDT TUE SEP 20 2005

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN COLLIER COUNTY IN SOUTH FLORIDA.
  NORTHWESTERN MAINLAND MONROE COUNTY IN SOUTH FLORIDA.

* UNTIL 545 PM EDT

* AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  TORNADO 7 MILES SOUTHEAST OF CHOKOLOSKEE...MOVING NORTHWEST AT 35  
  MPH.

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  CHOKOLOSKEE
  EVERGLADES CITY
  GOODLAND
  MARCO ISLAND

SEEK SHELTER IN THE INTERIOR OF A STURDY BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EDT WEDNESDAY MORNING
FOR SOUTHERN FLORIDA.

LAT...LON 2565 8125 2580 8115 2625 8188 2601 8203

$$
1 follow-up statement
000
WWUS52 KMFL 202131
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
528 PM EDT TUE SEP 20 2005

FLC021-087-202145-
/O.CON.KMFL.TO.W.0010.000000T0000Z-050920T2145Z/
COLLIER FL-MAINLAND MONROE FL-
528 PM EDT TUE SEP 20 2005

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR MAINLAND 
MONROE AND SOUTHWESTERN COLLIER COUNTIES...

AT 526 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED JUST WEST OF 
EVERGLADES CITY...MOVING NORTHWEST AT 35 MPH. RADAR ALSO INDICATED A 
POSSIBLE TORNADO OVER MAINLAND MONROE COUNTY 15 MILES SOUTHEAST OF 
CHOKOLOSKEE...MOVING NORTHWEST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BELLE 
MEADE...ROYAL PALM HAMMOCK...PORT OF THE ISLANDS...MARCO ISLAND AND 
GOODLAND.

IF YOU ARE NEAR THE PATH OF THIS TORNADO...SEEK SHELTER IN A STURDY 
BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EDT WEDNESDAY MORNING
FOR SOUTHERN FLORIDA.

LAT...LON 2565 8125 2580 8115 2625 8188 2601 8203

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 2:13 PM EDTTornado WarningMFLBroward35 min
Sep 20, 2:54 PM EDTTornado WarningMFLMiami-Dade36 min
Sep 20, 4:30 PM EDTTornado WarningMFLMiami-Dade30 min

Nearby

Tornado Warnings in Florida, 2005Every tornado warning in 2005Tornadoes in 2005

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.