Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 67, NWS Miami, FL

June 6, 2012Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 6, 2012, 8:08 AM EDT for Miami-Dade County, Florida. It was in force for 37 min. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 6, 2012, 8:08 AM EDT (12:08 UTC)
Expired: Jun 6, 2012, 8:45 AM EDT
In force: 37 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 10 km from the middle of the area, began a volume at 12:11 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.

What was reported inside it

Time	Report	Where	Remark
Jun 6, 8:11 AM EDT	HAIL 1	1 S Naranja, FL	A MEMBER OF THE PUBLIC REPORTED QUARTER-SIZED HAIL IN LEISURE CITIY...NEAR THE INTERSECTION OF SOUTHWEST 288TH STREET AND THE FLORIDA TURNPIKE AT 811 AM EDT.
Jun 6, 8:18 AM EDT	TSTM WND GST 60	Princeton, FL	A TRAINED SPOTTER REPORTED WIND GUSTS BETWEEN 55 AND 60 MPH NEAR THE INTERSECTION OF US 1 AND SOUTHWEST 248TH STREET AT 818 AM EDT.
Jun 6, 8:22 AM EDT	TSTM WND GST 60	Princeton, FL	A HAM RADIO OPERATOR ESIMATED WIND GUSTS TO 60 MPH IN PRINCETON...NEAR THE INTERSECTION OF SOUTHWEST 253RD STREET AND SOUTHWEST 137TH AVENUE AT 822 AM EDT.
Jun 6, 8:25 AM EDT	TSTM WND GST 60	Homestead, FL	AN OFF-DUTY NWS EMPLOYEE ESTIMATED WIND GUSTS TO 60 MPH IN HOMESTEAD...NEAR THE INTERSECTION OF SOUTHWEST 259TH STREET AND SOUTHWEST 125TH AVENUE AT 825 AM EDT.
Jun 6, 8:32 AM EDT	HAIL 1	1 W Cutler Ridge, FL	A TRAINED SPOTTER REPORTED QUARTER-SIZED HAIL JUST WEST OF THE CUTLER BAY AREA...NEAR THE INTERSECTION OF US 1 AND CARIBBEAN BOULEVARD AT 832 AM EDT.
Jun 6, 8:35 AM EDT	TSTM WND DMG	Perrine, FL	A MEMBER OF THE PUBLIC ESTIMATED WIND GUSTS TO 60 MPH IN PERRINE...NEAR THE INTERSECTION OF US 1 AND SOUTHWEST 168TH STREET AT 835 AM EDT. BUSINESS SIGNS WERE BLOWN OFF OF A BUILDING AND A MCDONALDS ARCH SIGN WAS DAMAGED.
Jun 6, 8:44 AM EDT	HAIL 0.25	E Cutler Ridge, FL	A MEMBER OF THE PUBLIC REPORTED PEA-SIZED HAIL FELL FOR THE PAST 5-10 MINUTES IN THE CUTLER BAY AREA...ENDING AT 844 AM EDT.
Jun 6, 8:50 AM EDT	TSTM WND DMG	Homestead, FL	NUMEROUS TREES REPORTED DOWN THROUGHOUT SOUTHEASTERN MIAMI-DADE COUNTY...MAINLY IN THE AREAS BETWEEN HOMESTEAD AND CUTLER BAY. TIME OF DAMAGE RANGED BETWEEN 800 AND 900 AM EDT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 0.1 hours before the alert went out and 29 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2953 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

810 
WUUS52 KMFL 061208
SVRMFL
FLC086-061245-
/O.NEW.KMFL.SV.W.0067.120606T1208Z-120606T1245Z/

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

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEAST MIAMI-DADE COUNTY IN SOUTH FLORIDA.

* UNTIL 845 AM EDT

* AT 803 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE
  TO DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
  THIS STORM WAS LOCATED NEAR HOMESTEAD MIAMI SPEEDWAY...AND
  MOVING NORTHEAST AT 15 MPH.

* THE STORM WILL AFFECT...
  HOMESTEAD MIAMI SPEEDWAY...
  NARANJA...
  PRINCETON...
  GOULDS...
  CUTLER BAY...
  PALMETTO BAY...
  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.

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 2565 8026 2562 8028 2561 8030 2555 8030
      2553 8031 2553 8032 2549 8033 2547 8033
      2542 8036 2543 8050 2568 8048 2568 8025
TIME...MOT...LOC 1207Z 204DEG 14KT 2548 8041

$$

BAXTER

2 follow-up statements

061 
WWUS52 KMFL 061221 RRA
SVSMFL

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

FLC086-061245-
/O.CON.KMFL.SV.W.0067.000000T0000Z-120606T1245Z/
MIAMI-DADE FL-
821 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR SOUTHEAST MIAMI-DADE COUNTY...

AT 816 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR PRINCETON...MOVING NORTHEAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
PRINCETON...
GOULDS...
BLACK PT...
CUTLER BAY...
CUTLER RIDGE...
PALMETTO BAY...
  AND SURROUNDING COMMUNITIES.

TRAINED SPOTTER ALSO ESTIMATED 55 TO 60 MPH WIND GUSTS AT US 1
AND SW 248 STREET AT 8:18 AM EDT WITH THIS SEVERE THUNDERSTORM.

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.

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 2565 8026 2562 8028 2561 8030 2555 8030
      2553 8031 2553 8032 2549 8033 2547 8033
      2542 8036 2543 8050 2568 8048 2568 8025
TIME...MOT...LOC 1219Z 204DEG 14KT 2552 8039

$$

BAXTER

014 
WWUS52 KMFL 061233
SVSMFL

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

FLC086-061245-
/O.CON.KMFL.SV.W.0067.000000T0000Z-120606T1245Z/
MIAMI-DADE FL-
833 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR SOUTHEAST MIAMI-DADE COUNTY...

AT 824 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED. QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR PRINCETON...MOVING NORTHEAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
GOULDS...
CUTLER BAY...
CUTLER RIDGE...
PALMETTO BAY...
  AND SURROUNDING COMMUNITIES.

AN OFF DUTY METEOROLOGIST REPORTED 60 MPH WIND GUSTS AT SOUTHWEST 259TH
TERRACE AT 8:25 AM EDT...AND A TRAINED SPOTTER ALSO REPORTED QUARTER
SIZE HAIL AT US 1 AND CARIBBEAN BLVD AT 8:32 AM EDT.

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.

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 2565 8026 2562 8028 2561 8030 2555 8030
      2553 8031 2553 8032 2550 8033 2550 8034
      2550 8042 2568 8045 2568 8025
TIME...MOT...LOC 1228Z 204DEG 14KT 2555 8037

$$

BAXTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 2:56 AM EDT	Special Weather Statement	MFL	Collier	49 min
Jun 6, 3:02 AM EDT	Special Marine Warning	MFL		58 min
Jun 6, 3:21 AM EDT	Special Weather Statement	MFL	Collier	24 min
Jun 6, 3:41 AM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry	34 min
Jun 6, 3:47 AM EDT	Special Weather Statement	MFL	Collier	43 min
Jun 6, 4:12 AM EDT	Special Weather Statement	MFL	Collier, Hendry	48 min
Jun 6, 4:19 AM EDT	Special Weather Statement	MFL	Hendry	41 min
Jun 6, 4:35 AM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry, Palm Beach	40 min
Jun 6, 4:37 AM EDT	Special Weather Statement	MFL	Broward	23 min
Jun 6, 4:59 AM EDT	Special Marine Warning	MFL		68 min
Jun 6, 5:05 AM EDT	Special Marine Warning	MFL		85 min
Jun 6, 5:14 AM EDT	Special Weather Statement	MFL	Collier	46 min
Jun 6, 5:24 AM EDT	Severe Thunderstorm Warning	MFL	Collier	51 min
Jun 6, 5:31 AM EDT	Special Weather Statement	MFL	Collier	44 min
Jun 6, 5:39 AM EDT	Severe Thunderstorm Warning	MFL	Collier	42 min
Jun 6, 5:42 AM EDT	Tornado Warning	MFL	Collier	28 min
Jun 6, 5:55 AM EDT	Special Weather Statement	MFL	Palm Beach	35 min
Jun 6, 6:19 AM EDT	Special Weather Statement	MFL	Palm Beach	41 min
Jun 6, 6:44 AM EDT	Special Weather Statement	MFL	Palm Beach	31 min
Jun 6, 6:47 AM EDT	Special Marine Warning	MFL		58 min
Jun 6, 7:01 AM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	44 min
Jun 6, 7:18 AM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	27 min
Jun 6, 7:29 AM EDT	Special Weather Statement	MFL	Miami-Dade	46 min
Jun 6, 7:33 AM EDT	Special Weather Statement	MFL	Miami-Dade	42 min
Jun 6, 7:36 AM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	39 min
Jun 6, 7:40 AM EDT	Special Marine Warning	MFL		65 min
Jun 6, 7:40 AM EDT	Special Weather Statement	MFL	Palm Beach	35 min
Jun 6, 7:54 AM EDT	Special Marine Warning	MFL		66 min
Jun 6, 8:02 AM EDT	Special Weather Statement	MFL	Broward	28 min
Jun 6, 8:05 AM EDT	Severe Thunderstorm Warning	MFL	Broward	16 min
Jun 6, 8:37 AM EDT	Special Marine Warning	MFL		53 min
Jun 6, 8:38 AM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	37 min
Jun 6, 8:49 AM EDT	Special Marine Warning	MFL		56 min
Jun 6, 8:52 AM EDT	Special Weather Statement	MFL	Palm Beach	23 min
Jun 6, 9:02 AM EDT	Special Weather Statement	MFL	Miami-Dade	28 min
Jun 6, 2:24 PM EDT	Special Marine Warning	MFL		66 min
Jun 6, 2:37 PM EDT	Special Weather Statement	MFL	Broward	23 min
Jun 6, 3:05 PM EDT	Special Weather Statement	MFL	Palm Beach	25 min
Jun 6, 3:10 PM EDT	Special Marine Warning	MFL		35 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.