Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 67, NWS Miami, FL

August 30, 2008Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Aug 30, 2008, 6:25 PM EDT for Miami-Dade County, Florida. It was in force for 20 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
Aug 30, 2008, 6:25 PM EDT (22:25 UTC)
Expired
Aug 30, 2008, 6:45 PM EDT
In force
20 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 14 km from the middle of the area, began a volume at 22:27 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.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 10.4 hours before the alert went out and 36 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 2008-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3137 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
3137 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
36 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.

000 
WFUS52 KMFL 302225
TORMFL
FLC086-302245-
/O.NEW.KMFL.TO.W.0067.080830T2225Z-080830T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
625 PM EDT SAT AUG 30 2008

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A POSSIBLE TORNADO NEAR NARANJA...MOVING NORTHWEST AT 32 MPH.


* THE TORNADO WILL BE NEAR...
  NARANJA...
  THE REDLAND...
  REDLAND...
  AND SURROUNDING COMMUNITIES.

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.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR COULD POSSIBLY DEVELOP ANYTIME. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 2559 8069 2571 8056 2557 8037 2548 8042
TIME...MOT...LOC 2225Z 116DEG 28KT 2553 8048

$$

DG
2 follow-up statements
000
WWUS52 KMFL 302235
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
635 PM EDT SAT AUG 30 2008

FLC086-302245-
/O.CON.KMFL.TO.W.0067.000000T0000Z-080830T2245Z/
MIAMI-DADE FL-
635 PM EDT SAT AUG 30 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR CENTRAL
MIAMI-DADE COUNTY...

AT 634 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
POSSIBLE TORNADO LOCATED 6 MILES SOUTHWEST OF INLIKITA...MOVING 
NORTHWEST AT 32 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 YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 2559 8069 2571 8056 2561 8046 2552 8051
TIME...MOT...LOC 2235Z 116DEG 28KT 2556 8056

$$

DG
000
WWUS52 KMFL 302242
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
642 PM EDT SAT AUG 30 2008

FLC086-302251-
/O.EXP.KMFL.TO.W.0067.000000T0000Z-080830T2245Z/
MIAMI-DADE FL-
641 PM EDT SAT AUG 30 2008

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

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE ROTATION 
IN THE THUNDERSTORM HAS WEAKENED. THUS...THE TORNADO WARNING WILL 
EXPIRE AT 645 PM EDT.

LAT...LON 2559 8069 2571 8056 2561 8046 2552 8051
TIME...MOT...LOC 2241Z 116DEG 28KT 2558 8061

$$

DG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 4:32 AM EDTSmall Craft AdvisoryMFL48 hr
Aug 30, 3:21 PM EDTSpecial Marine WarningMFL54 min
Aug 30, 3:22 PM EDTFlood WatchMFLCollier, Glades, Hendry, Monroe27 hr
Aug 30, 4:25 PM EDTTornado WarningMFLMonroe35 min
Aug 30, 4:46 PM EDTSpecial Marine WarningMFL59 min
Aug 30, 5:51 PM EDTSpecial Marine WarningMFL54 min
Aug 30, 6:05 PM EDTSpecial Weather StatementMFLMiami-Dade25 min
Aug 30, 6:15 PM EDTSpecial Weather StatementMFLCollier30 min
Aug 30, 6:38 PM EDTSpecial Weather StatementMFLCollier52 min
Aug 30, 6:40 PM EDTSpecial Marine WarningMFL55 min
Aug 30, 6:47 PM EDTSpecial Marine WarningMFL47 min
Aug 30, 6:57 PM EDTSpecial Marine WarningMFL63 min
Aug 30, 7:37 PM EDTSpecial Weather StatementMFLCollier53 min
Aug 30, 7:44 PM EDTSpecial Marine WarningMFL61 min
Aug 30, 7:48 PM EDTSpecial Weather StatementMFLCollier27 min
Aug 30, 7:54 PM EDTSpecial Weather StatementMFLPalm Beach36 min

Nearby

Tornado Warnings in Florida, 2008Every tornado warning in 2008Tornadoes in 2008

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.