Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 62, NWS Miami, FL

June 6, 2012Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 6, 2012, 5:39 AM EDT for Collier County, Florida. It was in force for 42 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, 5:39 AM EDT (09:39 UTC)
Expired
Jun 6, 2012, 6:21 AM EDT
In force
42 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Collier County, FL

The radar

The Miami radar (KAMX), 143 km from the middle of the area, began a volume at 09:40 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, 9.7 hours before the alert went out and 146 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°0°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.

760 
WUUS52 KMFL 060939
SVRMFL
FLC021-061045-
/O.NEW.KMFL.SV.W.0062.120606T0939Z-120606T1045Z/

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

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN COLLIER COUNTY IN SOUTH FLORIDA.

* UNTIL 645 AM EDT

* AT 535 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 NEAR
  MARCO ISLAND AIRPORT...AND MOVING NORTHEAST AT 25 MPH.

* THE STORM WILL AFFECT...
  ROYAL PALM HAMMOCK...
  EAST NAPLES...
  SOUTH NAPLES...
  NAPLES...
  WEST TOLL GATE ON ALLIGATOR ALLEY...
  GOLDEN GATE ESTATES...
  AVE MARIA...
  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 2632 8175 2632 8166 2642 8167 2643 8166
      2643 8163 2631 8137 2588 8151 2598 8176
      2599 8176 2609 8181 2611 8181
TIME...MOT...LOC 0939Z 215DEG 20KT 2604 8166

$$

MJB
1 follow-up statement
660 
WWUS52 KMFL 061021
SVSMFL

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

FLC021-061031-
/O.CAN.KMFL.SV.W.0062.000000T0000Z-120606T1045Z/
COLLIER FL-
621 AM EDT WED JUN 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN COLLIER COUNTY IS
CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS, THE THUNDERSTORM WARNING HAS BEEN CANCELLED.

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

LAT...LON 2632 8175 2632 8166 2642 8167 2643 8166
      2643 8163 2631 8137 2588 8151 2598 8176
      2599 8176 2609 8181 2611 8181
TIME...MOT...LOC 1021Z 215DEG 20KT 2623 8151

$$

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, 3:41 AM EDTSevere Thunderstorm WarningMFLCollier, Hendry34 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, 5:42 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.