Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 59, NWS Miami, FL

June 6, 2012Collier County, Hendry County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 6, 2012, 3:41 AM EDT for Collier County, Hendry County, Florida. It was in force for 34 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 6, 2012, 3:41 AM EDT (07:41 UTC)
Expired
Jun 6, 2012, 4:15 AM EDT
In force
34 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

Counties Collier County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 106 km from the middle of the area, began a volume at 07:43 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 00:00Z, 7.7 hours before the alert went out and 104 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 00:00Z on 2012-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2033 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
2033 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1306 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
38 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.

685 
WUUS52 KMFL 060741
SVRMFL
FLC021-051-060815-
/O.NEW.KMFL.SV.W.0059.120606T0741Z-120606T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
341 AM EDT WED JUN 6 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL HENDRY COUNTY IN SOUTH FLORIDA.
  CENTRAL COLLIER COUNTY IN SOUTH FLORIDA.

* UNTIL 415 AM EDT

* AT 338 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  SOUTHEAST OF MILE MARKER 90 ON ALLIGATOR ALLEY...AND MOVING NORTH
  AT 35 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND
OR LARGE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND HEAVY RAINFALL IS
ALSO POSSIBLE. IF THE STORM APPROACHES YOUR LOCATION, SEEK SHELTER IN
AN ENCLOSED BUILDING ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR
ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS
SPOTTED.

&&

LAT...LON 2639 8134 2632 8094 2600 8115 2602 8136
TIME...MOT...LOC 0741Z 196DEG 29KT 2612 8124

$$

MJB
2 follow-up statements
139 
WWUS52 KMFL 060756
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
356 AM EDT WED JUN 6 2012

FLC021-051-060815-
/O.CON.KMFL.SV.W.0059.000000T0000Z-120606T0815Z/
HENDRY FL-COLLIER FL-
356 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM EDT
FOR CENTRAL COLLIER AND SOUTH CENTRAL HENDRY COUNTIES...

AT 351 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BIG
CYPRESS ACCESS AREAS OFF ALLIGATOR ALLEY...MOVING NORTH AT 35 MPH.

SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR
ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS
SPOTTED.

LAT...LON 2615 8135 2639 8134 2632 8094 2606 8111
TIME...MOT...LOC 0756Z 198DEG 30KT 2624 8120

$$

MJB
411 
WWUS52 KMFL 060815
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
415 AM EDT WED JUN 6 2012

FLC021-051-060824-
/O.EXP.KMFL.SV.W.0059.000000T0000Z-120606T0815Z/
HENDRY FL-COLLIER FL-
415 AM EDT WED JUN 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLLIER AND SOUTH
CENTRAL HENDRY COUNTIES WILL EXPIRE AT 415 AM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING WILL EXPIRE AT 415 AM EDT.

HOWEVER, THIS STORM IS STILL CAPABLE OF PRODUCING GUSTY WINDS
AROUND 50 MPH AND SMALL HAIL.

LAT...LON 2615 8135 2639 8134 2632 8094 2606 8111
TIME...MOT...LOC 0814Z 198DEG 30KT 2638 8115

$$

MJB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 2:56 AM EDTSpecial Weather StatementMFLCollier49 min
Jun 6, 3:02 AM EDTSpecial Marine WarningMFL58 min
Jun 6, 3:21 AM EDTSpecial Weather StatementMFLCollier24 min
Jun 6, 3:47 AM EDTSpecial Weather StatementMFLCollier43 min
Jun 6, 4:12 AM EDTSpecial Weather StatementMFLCollier, Hendry48 min
Jun 6, 4:19 AM EDTSpecial Weather StatementMFLHendry41 min
Jun 6, 4:35 AM EDTSevere Thunderstorm WarningMFLGlades, Hendry, Palm Beach40 min
Jun 6, 4:37 AM EDTSpecial Weather StatementMFLBroward23 min
Jun 6, 4:59 AM EDTSpecial Marine WarningMFL68 min
Jun 6, 5:05 AM EDTSpecial Marine WarningMFL85 min
Jun 6, 5:14 AM EDTSpecial Weather StatementMFLCollier46 min
Jun 6, 5:24 AM EDTSevere Thunderstorm WarningMFLCollier51 min
Jun 6, 5:31 AM EDTSpecial Weather StatementMFLCollier44 min
Jun 6, 5:39 AM EDTSevere Thunderstorm WarningMFLCollier42 min
Jun 6, 5:42 AM EDTTornado WarningMFLCollier28 min
Jun 6, 5:55 AM EDTSpecial Weather StatementMFLPalm Beach35 min
Jun 6, 6:19 AM EDTSpecial Weather StatementMFLPalm Beach41 min
Jun 6, 6:44 AM EDTSpecial Weather StatementMFLPalm Beach31 min
Jun 6, 6:47 AM EDTSpecial Marine WarningMFL58 min
Jun 6, 7:01 AM EDTSevere Thunderstorm WarningMFLPalm Beach44 min
Jun 6, 7:18 AM EDTSevere Thunderstorm WarningMFLPalm Beach27 min
Jun 6, 7:29 AM EDTSpecial Weather StatementMFLMiami-Dade46 min
Jun 6, 7:33 AM EDTSpecial Weather StatementMFLMiami-Dade42 min
Jun 6, 7:36 AM EDTSevere Thunderstorm WarningMFLMiami-Dade39 min
Jun 6, 7:40 AM EDTSpecial Marine WarningMFL65 min
Jun 6, 7:40 AM EDTSpecial Weather StatementMFLPalm Beach35 min
Jun 6, 7:54 AM EDTSpecial Marine WarningMFL66 min
Jun 6, 8:02 AM EDTSpecial Weather StatementMFLBroward28 min
Jun 6, 8:05 AM EDTSevere Thunderstorm WarningMFLBroward16 min
Jun 6, 8:08 AM EDTSevere Thunderstorm WarningMFLMiami-Dade37 min
Jun 6, 8:37 AM EDTSpecial Marine WarningMFL53 min
Jun 6, 8:38 AM EDTSevere Thunderstorm WarningMFLMiami-Dade37 min
Jun 6, 8:49 AM EDTSpecial Marine WarningMFL56 min
Jun 6, 8:52 AM EDTSpecial Weather StatementMFLPalm Beach23 min
Jun 6, 9:02 AM EDTSpecial Weather StatementMFLMiami-Dade28 min
Jun 6, 2:24 PM EDTSpecial Marine WarningMFL66 min
Jun 6, 2:37 PM EDTSpecial Weather StatementMFLBroward23 min
Jun 6, 3:05 PM EDTSpecial Weather StatementMFLPalm Beach25 min
Jun 6, 3:10 PM EDTSpecial Marine WarningMFL35 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning 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.