Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 10, NWS Miami, FL

June 23, 2012Collier County, Florida

NWS Miami, FL issued this tornado warning at Jun 23, 2012, 4:00 PM EDT for Collier County, Florida. It was in force for 30 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, 4:00 PM EDT (20:00 UTC)
Expired
Jun 23, 2012, 4:30 PM EDT
In force
30 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Collier County, FL

The radar

The Miami radar (KAMX), 122 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 125 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.

387 
WFUS52 KMFL 232000
TORMFL
FLC021-232030-
/O.NEW.KMFL.TO.W.0010.120623T2000Z-120623T2030Z/

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

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL COLLIER COUNTY IN SOUTHWEST FLORIDA...

* UNTIL 430 PM EDT

* AT 355 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR FAKAHATCHEE
  STRAND STATE PRESERVE...MOVING NORTH AT 20 MPH.


* THE TORNADO WILL BE NEAR...
  PICAYUNE STRAND STATE FOREST...
  INTERSECTION I-75 AND EVERGLADES BLVD...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INSIDE A STURDY BUILDING ON THE LOWEST FLOOR...AWAY FROM
EXTERIOR WALLS AND WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.

&&

LAT...LON 2618 8166 2624 8151 2626 8137 2608 8137
      2597 8137 2594 8149
TIME...MOT...LOC 2000Z 164DEG 19KT 2606 8145

$$

60
1 follow-up statement
227 
WWUS52 KMFL 232019
SVSMFL

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

FLC021-232030-
/O.CON.KMFL.TO.W.0010.000000T0000Z-120623T2030Z/
COLLIER FL-
419 PM EDT SAT JUN 23 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR CENTRAL
COLLIER COUNTY...

AT 417 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED OVER CENTRAL COLLIER COUNTY...MOVING NORTH AT 20 MPH.

THE STORM WILL BE NEAR...
  ALLIGATOR ALLEY...
  RURAL CENTRAL COLLIER COUNTY...
  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 2622 8148 2624 8146 2626 8137 2608 8137
      2608 8138 2609 8146
TIME...MOT...LOC 2019Z 185DEG 19KT 2614 8142

$$

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, 4:23 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, 6:08 PM EDTTornado WarningMFLCollier, Hendry67 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.