Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 11, NWS Miami, FL

October 30, 2011Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Oct 30, 2011, 8:26 PM EDT for Miami-Dade County, Florida. It was in force for 34 min. 2 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: Oct 30, 2011, 8:26 PM EDT (00:26 UTC)
Expired: Oct 30, 2011, 9:00 PM EDT
In force: 34 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Miami-Dade County, FL

What was reported inside it

Time	Report	Where	Remark
Oct 30, 8:42 PM EDT	FUNNEL CLOUD	Cutler Ridge, FL	PUBLIC REPORTED WATERSPOUT TO METRO DADE PD ABOUT 1 MILE EAST OF BLACK POINT MARINA
Oct 30, 8:44 PM EDT	TSTM WND GST 70	Cutler Ridge, FL	A TRAINED SPOTTER REPORTED 60-70 MPH WINDS AT CUTLER BAY AT THE INTERSECTION OF CARRIBEAN AND MARLIN ROADS...

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, 0.4 hours before the alert went out and 26 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: 860 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 505 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

565 
WFUS52 KMFL 310026
TORMFL
FLC086-310100-
/O.NEW.KMFL.TO.W.0011.111031T0026Z-111031T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
826 PM EDT SUN OCT 30 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 900 PM EDT

* AT 818 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A POSSIBLE TORNADO 1 MILE EAST OF BLACK POINT...MOVING NORTHWEST   
  AT 5 MPH.


* THE TORNADO WILL BE NEAR...
  CUTLER BAY...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INSIDE A STURDY BUILDING ON THE LOWEST FLOOR...AWAY FROM
EXTERIOR WALLS AND WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.

TAKE COVER NOW IN A STURDY REINFORCED BUILDING. TORNADOES ARE
ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO SEE. IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE! MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR.
LEAVE MOBILE HOMES AND VEHICLES FOR REINFORCED SHELTER. STAY AWAY
FROM WINDOWS.

&&

LAT...LON 2555 8030 2552 8032 2557 8042 2563 8039
      2567 8034 2563 8030 2561 8030 2559 8031
      2558 8030
TIME...MOT...LOC 0024Z 148DEG 4KT 2556 8030

$$

60

1 follow-up statement

472 
WWUS52 KMFL 310040
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
840 PM EDT SUN OCT 30 2011

FLC086-310100-
/O.CON.KMFL.TO.W.0011.000000T0000Z-111031T0100Z/
MIAMI-DADE FL-
840 PM EDT SUN OCT 30 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR EAST
CENTRAL MIAMI-DADE COUNTY...

AT 838 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF PRODUCING A 
TORNADO. THIS STORM WAS LOCATED ALONG THE COAST AT CUTLER 
BAY...MOVING NORTHWEST AT 5 MPH.

IF YOU ARE NEAR THE PATH OF A TORNADO...SEEK SHELTER IN A STURDY
BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND WINDOWS.
GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM WINDOWS.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW! IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT
MAY BE TOO LATE TO GET TO A SAFE PLACE! MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. LEAVE MOBILE HOMES AND VEHICLES FOR
REINFORCED SHELTER. STAY AWAY FROM WINDOWS.

LAT...LON 2555 8030 2557 8042 2563 8039 2567 8034
      2563 8030 2561 8030 2559 8031 2558 8030
TIME...MOT...LOC 0039Z 137DEG 5KT 2558 8032

$$

60

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 30, 8:02 PM EDT	Special Marine Warning	MFL		43 min
Oct 30, 8:13 PM EDT	Special Weather Statement	MFL	Miami-Dade	47 min
Oct 30, 8:14 PM EDT	Flash Flood Warning	MFL	Miami-Dade	3 hr
Oct 30, 8:44 PM EDT	Special Marine Warning	MFL		46 min
Oct 30, 8:55 PM EDT	Tornado Warning	MFL	Miami-Dade	23 min
Oct 30, 9:31 PM EDT	Special Marine Warning	MFL		44 min
Oct 30, 10:12 PM EDT	Areal Flood Advisory	MFL	Broward	2 hr
Oct 30, 10:31 PM EDT	Flash Flood Warning	MFL	Miami-Dade	6 hr
Oct 31, 12:07 AM EDT	Areal Flood Advisory	MFL	Broward	4 hr
Oct 31, 1:27 AM EDT	Flash Flood Warning	MFL	Broward	3 hr
Oct 31, 1:47 AM EDT	Special Marine Warning	MFL		58 min
Oct 31, 2:26 AM EDT	Flash Flood Warning	MFL	Broward	3 hr
Oct 31, 4:21 AM EDT	Flash Flood Warning	MFL	Miami-Dade	5 hr
Oct 31, 4:29 AM EDT	Rip Current Statement	MFL	Broward, Miami-Dade, Palm Beach	4 days
Oct 31, 4:31 AM EDT	Flash Flood Warning	MFL	Broward	5 hr
Oct 31, 8:32 AM EDT	Special Marine Warning	MFL		28 min
Oct 31, 8:59 AM EDT	Areal Flood Warning	MFL	Miami-Dade	3 hr
Oct 31, 9:06 AM EDT	Areal Flood Warning	MFL	Broward	3 hr
Oct 31, 12:01 PM EDT	Flash Flood Warning	MFL	Miami-Dade	5 hr
Oct 31, 12:16 PM EDT	Flash Flood Warning	MFL	Broward	6 hr
Oct 31, 1:35 PM EDT	Special Weather Statement	MFL	Broward	40 min
Oct 31, 2:08 PM EDT	Special Weather Statement	MFL	Broward	52 min
Oct 31, 2:54 PM EDT	Areal Flood Advisory	MFL	Broward	111 min
Oct 31, 4:55 PM EDT	Flash Flood Warning	MFL	Miami-Dade	4 hr
Oct 31, 5:50 PM EDT	Areal Flood Warning	MFL	Broward	18 hr
Oct 31, 6:48 PM EDT	Areal Flood Warning	MFL	Miami-Dade	18 hr

Nearby

Tornado Warnings in Florida, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.