Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 2, NWS Miami, FL

October 8, 2011Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Oct 8, 2011, 12:53 PM EDT for Miami-Dade County, Florida. It was in force for 52 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
Oct 8, 2011, 12:53 PM EDT (16:53 UTC)
Expired
Oct 8, 2011, 1:45 PM EDT
In force
52 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 15 km from the middle of the area, began a volume at 16:53 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 12:00Z, 4.9 hours before the alert went out and 38 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 12:00Z on 2011-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2397 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2011-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
2397 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
54 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.

283 
WFUS52 KMFL 081653
TORMFL
FLC086-081745-
/O.NEW.KMFL.TO.W.0002.111008T1653Z-111008T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1253 PM EDT SAT OCT 8 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA...
  THIS INCLUDES THE CITIES OF...HOMESTEAD MIAMI SPEEDWAY...HOMESTEAD
  GENERAL AIRPORT...HOMESTEAD...

* UNTIL 145 PM EDT

* AT 1252 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  PRINCETON...MOVING SOUTHWEST AT 10 MPH.


* THE TORNADO WILL BE NEAR...
  GOULDS...
  PRINCETON...
  NARANJA...
  THE REDLAND...
  HOMESTEAD MIAMI SPEEDWAY...
  REDLAND...
  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.

&&

LAT...LON 2553 8031 2553 8032 2549 8033 2545 8032
      2544 8031 2541 8032 2528 8042 2545 8062
      2564 8038 2558 8029
TIME...MOT...LOC 1653Z 042DEG 7KT 2553 8036

$$

AK
3 follow-up statements
130 
WWUS52 KMFL 081703
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
103 PM EDT SAT OCT 8 2011

FLC086-081745-
/O.CON.KMFL.TO.W.0002.000000T0000Z-111008T1745Z/
MIAMI-DADE FL-
103 PM EDT SAT OCT 8 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM EDT FOR CENTRAL
MIAMI-DADE COUNTY...

AT 101 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR PRINCETON...MOVING SOUTHWEST AT 10 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.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 2558 8029 2553 8031 2553 8032 2549 8033
      2545 8032 2544 8031 2541 8032 2528 8042
      2545 8062 2564 8038
TIME...MOT...LOC 1703Z 042DEG 7KT 2552 8037

$$

AK
097 
WWUS52 KMFL 081720
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
120 PM EDT SAT OCT 8 2011

FLC086-081745-
/O.CON.KMFL.TO.W.0002.000000T0000Z-111008T1745Z/
MIAMI-DADE FL-
120 PM EDT SAT OCT 8 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM EDT FOR CENTRAL
MIAMI-DADE COUNTY...

AT 119 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS 
LOCATED NEAR PRINCETON...MOVING SOUTHWEST AT 10 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.

LAT...LON 2557 8043 2553 8036 2552 8032 2549 8033
      2545 8032 2544 8031 2541 8032 2528 8042
      2545 8062
TIME...MOT...LOC 1720Z 042DEG 7KT 2550 8039

$$

AK
464 
WWUS52 KMFL 081744
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
144 PM EDT SAT OCT 8 2011

FLC086-081753-
/O.EXP.KMFL.TO.W.0002.000000T0000Z-111008T1745Z/
MIAMI-DADE FL-
144 PM EDT SAT OCT 8 2011

...THE TORNADO WARNING FOR CENTRAL MIAMI-DADE COUNTY WILL EXPIRE AT
145 PM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE CIRCULATION HAS
DISSIPATED. THUS THE TORNADO WARNING WILL EXPIRE AT 145 PM EDT.

THUNDERSTORMS REMAIN IN THE AREA. GUSTY WINDS UP TO 50 MPH AND VERY 
HEAVY RAINFALL ARE STILL POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO 
OR LOCAL MEDIA FOR THE LATEST UPDATES.

LAT...LON 2557 8043 2553 8036 2552 8032 2549 8033
      2545 8032 2544 8031 2541 8032 2528 8042
      2545 8062
TIME...MOT...LOC 1743Z 042DEG 7KT 2547 8042

$$

AK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 8:09 PM EDTSpecial Weather StatementMFLMiami-Dade21 min
Oct 7, 8:18 PM EDTSpecial Marine WarningMFL27 min
Oct 7, 8:36 PM EDTSpecial Weather StatementMFLBroward24 min
Oct 7, 9:02 PM EDTAreal Flood AdvisoryMFLMiami-Dade118 min
Oct 7, 9:07 PM EDTSpecial Marine WarningMFL53 min
Oct 7, 9:24 PM EDTSpecial Marine WarningMFL17 min
Oct 7, 9:30 PM EDTSpecial Weather StatementMFLBroward30 min
Oct 7, 9:34 PM EDTSpecial Weather StatementMFLMiami-Dade41 min
Oct 7, 10:04 PM EDTSpecial Marine WarningMFL86 min
Oct 7, 10:09 PM EDTFlood WatchMFLBroward, Miami-Dade, Palm Beach46 hr
Oct 7, 10:20 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade81 min
Oct 7, 10:22 PM EDTSpecial Weather StatementMFLBroward38 min
Oct 7, 10:26 PM EDTSpecial Weather StatementMFLPalm Beach19 min
Oct 7, 10:56 PM EDTSpecial Weather StatementMFLMiami-Dade34 min
Oct 7, 11:03 PM EDTSpecial Marine WarningMFL87 min
Oct 7, 11:23 PM EDTSpecial Weather StatementMFLMiami-Dade22 min
Oct 7, 11:37 PM EDTAreal Flood AdvisoryMFLMiami-Dade53 min
Oct 7, 11:52 PM EDTSpecial Weather StatementMFLMiami-Dade23 min
Oct 7, 11:59 PM EDTSpecial Marine WarningMFL2 hr
Oct 8, 12:18 AM EDTSpecial Weather StatementMFLMiami-Dade27 min
Oct 8, 12:29 AM EDTAreal Flood AdvisoryMFLMiami-Dade79 min
Oct 8, 12:45 AM EDTSpecial Weather StatementMFLMiami-Dade30 min
Oct 8, 12:56 AM EDTSpecial Weather StatementMFLMiami-Dade19 min
Oct 8, 12:59 AM EDTAreal Flood AdvisoryMFLMiami-Dade61 min
Oct 8, 4:51 AM EDTGale WatchMFL8 hr
Oct 8, 4:51 AM EDTSmall Craft AdvisoryMFL8 hr
Oct 8, 4:55 AM EDTHigh Surf AdvisoryMFLPalm Beach39 hr
Oct 8, 4:57 AM EDTSpecial Marine WarningMFL35 min
Oct 8, 5:00 AM EDTSpecial Weather StatementMFLPalm Beach30 min
Oct 8, 9:45 AM EDTSpecial Marine WarningMFL90 min
Oct 8, 11:01 AM EDTSpecial Weather StatementMFLBroward59 min
Oct 8, 11:04 AM EDTSpecial Marine WarningMFL56 min
Oct 8, 11:53 AM EDTSpecial Weather StatementMFLMiami-Dade52 min
Oct 8, 12:17 PM EDTWind AdvisoryMFLBroward, Miami-Dade, Palm Beach16 hr
Oct 8, 12:28 PM EDTAreal Flood AdvisoryMFLMiami-Dade2 hr
Oct 8, 12:35 PM EDTSpecial Weather StatementMFLMiami-Dade55 min
Oct 8, 12:37 PM EDTGale WarningMFL25 hr
Oct 8, 2:20 PM EDTSpecial Marine WarningMFL55 min
Oct 8, 2:26 PM EDTFlash Flood WarningMFLMiami-Dade6 hr
Oct 8, 3:32 PM EDTSpecial Marine WarningMFL58 min

Nearby

Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.