Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 14, NWS Miami, FL

June 23, 2012Collier County, Hendry County, Florida

NWS Miami, FL issued this tornado warning at Jun 23, 2012, 6:08 PM EDT for Collier County, Hendry County, Florida. It was in force for 67 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
Jun 23, 2012, 6:08 PM EDT (22:08 UTC)
Expired
Jun 23, 2012, 7:15 PM EDT
In force
67 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

Counties Collier County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 94 km from the middle of the area, began a volume at 22:10 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 12:00Z, 10.1 hours before the alert went out and 89 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 2012-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1891 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 2012-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939Sfc1 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
1891 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
535 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
114 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.

099 
WFUS52 KMFL 232208
TORMFL
FLC021-051-232315-
/O.NEW.KMFL.TO.W.0014.120623T2208Z-120623T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
608 PM EDT SAT JUN 23 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN HENDRY COUNTY IN SOUTHERN FLORIDA...
  EAST CENTRAL COLLIER COUNTY IN SOUTHWEST FLORIDA...

* UNTIL 715 PM EDT

* AT 605 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BIG CYPRESS
  NATIONAL PRESERVE...MOVING NORTH AT 30 MPH.


* THE TORNADO WILL BE NEAR...
  MILE MARKER 60 ON ALLIGATOR ALLEY...
  BIG CYPRESS SEMINOLE INDIAN RESERVATION...
  HENDRY CORRECTIONAL I/A/P...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE INDOORS AND TO THE LOWEST LEVEL OF A STURDY BUILDING. STAY AWAY
FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY
OVERPASS. WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...
IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A
TORNADO MAY ALREADY BE ON THE GROUND...OR COULD DEVELOP ANYTIME.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

&&

LAT...LON 2638 8127 2638 8088 2621 8088 2600 8094
      2600 8112
TIME...MOT...LOC 2208Z 180DEG 28KT 2605 8103

$$

BAXTER
3 follow-up statements
817 
WWUS52 KMFL 232227
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
627 PM EDT SAT JUN 23 2012

FLC021-051-232315-
/O.CON.KMFL.TO.W.0014.000000T0000Z-120623T2315Z/
HENDRY FL-COLLIER FL-
627 PM EDT SAT JUN 23 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR EAST
CENTRAL COLLIER AND SOUTH CENTRAL HENDRY COUNTIES...

AT 623 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED 7 MILES SOUTH OF MILE MARKER 60 ON ALLIGATOR ALLEY...MOVING
NORTHWEST AT 10 MPH.

THE STORM WILL BE NEAR...
MILE MARKER 60 ON ALLIGATOR ALLEY...
COLLIER COUNTY REST AREA ON ALLIGATOR ALLEY...
  AND SURROUNDING COMMUNITIES.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR COULD POSSIBLY DEVELOP ANYTIME. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

LAT...LON 2636 8092 2621 8094 2604 8099 2603 8113
      2638 8127
TIME...MOT...LOC 2227Z 155DEG 9KT 2608 8106

$$

BAXTER
629 
WWUS52 KMFL 232248
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
648 PM EDT SAT JUN 23 2012

FLC021-051-232315-
/O.CON.KMFL.TO.W.0014.000000T0000Z-120623T2315Z/
HENDRY FL-COLLIER FL-
648 PM EDT SAT JUN 23 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR EAST
CENTRAL COLLIER AND SOUTH CENTRAL HENDRY COUNTIES...

AT 645 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE FIRST STORM
THAT WAS PRODUCING A TORNADO WARNING HAS WEAKENED. HOWEVER...A NEW STORM
JUST TO THE SOUTHEAST IS NOW SHOWING SIGNS OF ROTATION ABOUT 13 MILES
SOUTHEAST OF MILE MARKER 60 ON ALLIGATOR ALLEY...MOVING NORTH AT 30 MPH.

THE STORM WILL BE NEAR...
MILE MARKER 60 ON ALLIGATOR ALLEY...
  AND SURROUNDING COMMUNITIES.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR COULD POSSIBLY DEVELOP ANYTIME. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

LAT...LON 2636 8092 2621 8094 2604 8099 2603 8113
      2638 8127
TIME...MOT...LOC 2247Z 173DEG 25KT 2602 8095

$$

BAXTER
022 
WWUS52 KMFL 232307
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
707 PM EDT SAT JUN 23 2012

FLC021-051-232317-
/O.EXP.KMFL.TO.W.0014.000000T0000Z-120623T2315Z/
HENDRY FL-COLLIER FL-
707 PM EDT SAT JUN 23 2012

...THE TORNADO WARNING FOR EAST CENTRAL COLLIER AND SOUTH CENTRAL
HENDRY COUNTIES WILL EXPIRE AT 715 PM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE TORNADO HAS
DISSIPATED. THUS THE TORNADO WARNING WILL EXPIRE AT 715 PM EDT.

THUNDERSTORMS REMAIN IN THE AREA. FREQUENT LIGHTNING...GUSTY WINDS TO
40 MPH...VERY HEAVY RAINFALL AND SMALL HAIL ARE STILL POSSIBLE OVER
EASTERN COLLIER AND SOUTHERN HENDRY COUNTIES. STAY TUNED TO NOAA
WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES.

LAT...LON 2636 8092 2621 8094 2604 8099 2603 8113
      2638 8127
TIME...MOT...LOC 2307Z 173DEG 25KT 2616 8097

$$

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 8:41 PM EDTSpecial Marine WarningMFL2 hr
Jun 22, 9:29 PM EDTSpecial Marine WarningMFL2 hr
Jun 22, 9:41 PM EDTSmall Craft AdvisoryMFL5 days
Jun 22, 9:51 PM EDTSpecial Weather StatementMFLCollier, Monroe54 min
Jun 22, 10:22 PM EDTSpecial Weather StatementMFLCollier53 min
Jun 22, 10:33 PM EDTSpecial Weather StatementMFLMonroe57 min
Jun 23, 7:44 AM EDTAreal Flood AdvisoryMFLMiami-Dade2 hr
Jun 23, 3:25 PM EDTSpecial Weather StatementMFLCollier50 min
Jun 23, 3:32 PM EDTSpecial Marine WarningMFL88 min
Jun 23, 3:58 PM EDTTornado WarningMFLCollier17 min
Jun 23, 4:00 PM EDTTornado WarningMFLCollier30 min
Jun 23, 4:23 PM EDTTornado WarningMFLCollier52 min
Jun 23, 4:27 PM EDTTornado WarningMFLCollier, Hendry48 min
Jun 23, 4:54 PM EDTSpecial Marine WarningMFL66 min
Jun 23, 5:07 PM EDTSpecial Weather StatementMFLMonroe38 min
Jun 23, 5:10 PM EDTSpecial Marine WarningMFL95 min
Jun 23, 5:10 PM EDTTornado WarningMFLHendry65 min
Jun 23, 5:13 PM EDTSpecial Weather StatementMFLLee32 min
Jun 23, 5:22 PM EDTSevere Thunderstorm WarningMFLMiami-Dade23 min
Jun 23, 5:36 PM EDTSpecial Marine WarningMFL54 min
Jun 23, 5:44 PM EDTSpecial Weather StatementMFLCollier31 min
Jun 23, 5:50 PM EDTSpecial Weather StatementMFLMiami-Dade25 min
Jun 23, 5:54 PM EDTSpecial Marine WarningMFL111 min
Jun 23, 6:06 PM EDTSpecial Weather StatementMFLHendry54 min
Jun 23, 6:09 PM EDTSpecial Weather StatementMFLMiami-Dade51 min
Jun 23, 6:12 PM EDTSpecial Marine WarningMFL63 min
Jun 23, 6:52 PM EDTSpecial Weather StatementMFLBroward, Miami-Dade23 min
Jun 23, 6:56 PM EDTSpecial Marine WarningMFL73 min
Jun 23, 7:12 PM EDTSpecial Weather StatementMFLCollier, Hendry63 min
Jun 23, 7:23 PM EDTSpecial Weather StatementMFLBroward37 min
Jun 23, 7:35 PM EDTSpecial Marine WarningMFL115 min
Jun 23, 7:47 PM EDTSpecial Marine WarningMFL88 min

Nearby

Tornado Warnings in Florida, 2012Every tornado warning in 2012Tornadoes in 2012

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.