Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 65, NWS Miami, FL

June 6, 2012Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 6, 2012, 7:36 AM EDT for Miami-Dade County, Florida. It was in force for 39 min. 5 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, 7:36 AM EDT (11:36 UTC)
Expired: Jun 6, 2012, 8:15 AM EDT
In force: 39 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 9 km from the middle of the area, began a volume at 11:37 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, 8:02 AM EDT	HAIL 0.5	Homestead, FL	A TRAINED SPOTTER REPORTED DIME-SIZED HAIL IN HOMESTEAD AT 802 AM EDT.
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.

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 00:00Z, 11.6 hours before the alert went out and 31 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: 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.

874 
WUUS52 KMFL 061136
SVRMFL
FLC086-061215-
/O.NEW.KMFL.SV.W.0065.120606T1136Z-120606T1215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
736 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 815 AM EDT

* AT 732 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
  FLORIDA CITY...AND MOVING NORTHEAST AT 15 MPH.

* THE STORM WILL AFFECT...
  FLORIDA CITY...
  HOMESTEAD...
  REDLAND...
  NARANJA...
  PRINCETON...
  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 2561 8028 2561 8030 2559 8031 2557 8030
      2553 8031 2553 8032 2547 8033 2538 8039
      2539 8061 2565 8058 2564 8027
TIME...MOT...LOC 1136Z 205DEG 14KT 2545 8047

$$

BAXTER

2 follow-up statements

728 
WWUS52 KMFL 061148
SVSMFL

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

FLC086-061215-
/O.CON.KMFL.SV.W.0065.000000T0000Z-120606T1215Z/
MIAMI-DADE FL-
748 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM EDT
FOR SOUTHEAST MIAMI-DADE COUNTY...

AT 745 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HOMESTEAD...MOVING
NORTHEAST AT 10 TO 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
HOMESTEAD...
NARANJA...
PRINCETON...
  AND SURROUNDING COMMUNITIES.

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 2561 8028 2561 8030 2559 8031 2557 8030
      2553 8031 2553 8032 2547 8033 2539 8039
      2539 8055 2565 8051 2564 8027
TIME...MOT...LOC 1148Z 212DEG 10KT 2547 8045

$$

BAXTER

282 
WWUS52 KMFL 061159
SVSMFL

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

FLC086-061215-
/O.CON.KMFL.SV.W.0065.000000T0000Z-120606T1215Z/
MIAMI-DADE FL-
759 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM EDT
FOR SOUTHEAST MIAMI-DADE COUNTY...

AT 754 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. A NEW STORM HAS
DEVELOPED AND WAS LOCATED NEAR HOMESTEAD MIAMI SPEEDWAY...MOVING
NORTHEAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
HOMESTEAD...
HOMESTEAD MIAMI SPEEDWAY...
NARANJA...
  AND SURROUNDING COMMUNITIES.

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 2540 8054 2564 8050 2564 8027 2561 8028
      2561 8030 2559 8031 2557 8030 2553 8031
      2553 8032 2547 8033 2539 8039
TIME...MOT...LOC 1158Z 213DEG 13KT 2544 8042

$$

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, 7:40 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, 8:08 AM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	37 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.