Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 81, NWS Miami, FL

June 14, 2012Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 14, 2012, 9:25 PM EDT for Broward County, Miami-Dade County, Florida. It was in force for 35 min. 1 report 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 14, 2012, 9:25 PM EDT (01:25 UTC)
Expired: Jun 14, 2012, 10:00 PM EDT
In force: 35 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

Counties Broward County, FL, Miami-Dade County, FL

The radar

The Miami radar (KAMX), 49 km from the middle of the area, began a volume at 01:27 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 14, 9:35 PM EDT	HAIL 0.25	Southwest Ranches, FL	TRAINED SPOTTER REPORTED PEA SIZED HAIL AT I-75 NEAR SOUTHWEST RANCHES.

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, 1.4 hours before the alert went out and 24 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: 2467 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

666 
WUUS52 KMFL 150125
SVRMFL
FLC011-086-150200-
/O.NEW.KMFL.SV.W.0081.120615T0125Z-120615T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
925 PM EDT THU JUN 14 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BROWARD COUNTY IN SOUTH FLORIDA.
  EXTREME NORTHEASTERN MIAMI-DADE COUNTY IN SOUTH FLORIDA.

* UNTIL 1000 PM EDT

* AT 924 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  SOUTHWEST RANCHES...AND MOVING SOUTHEAST AT 5 MPH.

* THE STORM WILL AFFECT...
  SOUTHWEST RANCHES...
  COOPER CITY...
  NOVA SOUTHEASTERN UNIVERSITY...
  PINES BLVD AND UNIVERSITY DRIVE...
  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.

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. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT
305.229.4528 TO REPORT SEVERE WEATHER.

&&

LAT...LON 2606 8014 2591 8031 2602 8042 2612 8031
TIME...MOT...LOC 0125Z 305DEG 4KT 2603 8030

$$

GARCIA

1 follow-up statement

571 
WWUS52 KMFL 150158
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
958 PM EDT THU JUN 14 2012

FLC011-086-150208-
/O.EXP.KMFL.SV.W.0081.000000T0000Z-120615T0200Z/
BROWARD FL-MIAMI-DADE FL-
958 PM EDT THU JUN 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHEASTERN
MIAMI-DADE AND SOUTHEASTERN BROWARD COUNTIES WILL EXPIRE AT 1000 PM
EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING WILL EXPIRE AT 1000 PM EDT.

HOWEVER...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 2606 8014 2591 8031 2602 8042 2612 8031
TIME...MOT...LOC 0158Z 305DEG 4KT 2601 8027

$$

GARCIA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 8:13 PM EDT	Special Weather Statement	MFL	Miami-Dade	62 min
Jun 14, 8:21 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	24 min
Jun 14, 8:28 PM EDT	Special Marine Warning	MFL		62 min
Jun 14, 8:39 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	51 min
Jun 14, 8:40 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	21 min
Jun 14, 9:00 PM EDT	Special Weather Statement	MFL	Miami-Dade	30 min
Jun 14, 9:03 PM EDT	Special Weather Statement	MFL	Broward	42 min
Jun 14, 9:07 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	113 min
Jun 14, 9:37 PM EDT	Special Weather Statement	MFL	Miami-Dade	23 min
Jun 14, 9:41 PM EDT	Special Marine Warning	MFL		64 min
Jun 14, 9:47 PM EDT	Special Weather Statement	MFL	Broward	43 min
Jun 14, 9:57 PM EDT	Special Marine Warning	MFL		48 min
Jun 15, 1:45 PM EDT	Special Marine Warning	MFL		27 min
Jun 15, 2:05 PM EDT	Special Weather Statement	MFL	Palm Beach	25 min
Jun 15, 2:41 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	34 min
Jun 15, 2:44 PM EDT	Special Marine Warning	MFL		61 min
Jun 15, 3:01 PM EDT	Special Weather Statement	MFL	Broward	29 min
Jun 15, 3:14 PM EDT	Severe Thunderstorm Warning	MFL	Broward	31 min
Jun 15, 3:33 PM EDT	Special Weather Statement	MFL	Palm Beach	27 min
Jun 15, 3:37 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	23 min
Jun 15, 3:42 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	33 min
Jun 15, 3:48 PM EDT	Special Weather Statement	MFL	Broward	27 min
Jun 15, 3:57 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	33 min
Jun 15, 3:59 PM EDT	Special Weather Statement	MFL	Glades	46 min
Jun 15, 4:16 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	29 min
Jun 15, 4:18 PM EDT	Special Weather Statement	MFL	Miami-Dade	42 min
Jun 15, 4:45 PM EDT	Special Weather Statement	MFL	Miami-Dade	30 min
Jun 15, 4:54 PM EDT	Special Weather Statement	MFL	Glades	51 min
Jun 15, 5:08 PM EDT	Special Weather Statement	MFL	Miami-Dade	37 min
Jun 15, 5:18 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade, Monroe	27 min
Jun 15, 5:19 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	26 min
Jun 15, 5:32 PM EDT	Severe Thunderstorm Warning	MFL	Hendry	28 min
Jun 15, 5:42 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	26 min
Jun 15, 5:57 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry	63 min
Jun 15, 6:21 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry	54 min
Jun 15, 7:14 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Miami-Dade	31 min
Jun 15, 7:17 PM EDT	Special Weather Statement	MFL	Collier	28 min
Jun 15, 7:24 PM EDT	Severe Thunderstorm Warning	MFL	Collier	36 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.