Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 28, NWS Miami, FL

August 18, 2008Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Aug 18, 2008, 9:17 AM EDT for Miami-Dade County, Florida. It was in force for 28 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 18, 2008, 9:17 AM EDT (13:17 UTC)
Expired
Aug 18, 2008, 9:45 AM EDT
In force
28 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 32 km from the middle of the area, began a volume at 13:17 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, 1.3 hours before the alert went out and 56 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 2008-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2466 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2008-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
2466 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
59 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 181317
TORMFL
FLC086-181345-
/O.NEW.KMFL.TO.W.0028.080818T1317Z-080818T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
917 AM EDT MON AUG 18 2008

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

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

* UNTIL 945 AM EDT

* AT 911 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 18 MILES EAST OF
  ROYAL PALM RANGER STATION...MOVING WEST AT 34 MPH.


* THE TORNADO WILL BE NEAR...
  ROYAL PALM RANGER STATION BY 945 AM EDT...
  AND SURROUNDING COMMUNITIES.

THIS POSSIBLE TORNADO WILL CROSS HIGHWAY 1 AND CARD SOUND ROAD 
ROUGHLY HALF WAY BETWEEN FLORIDA CITY AND THE SOUTHERN FLORIDA COAST.

SOUTH FLORIDA TORNADOES MAY AT TIMES BE SMALL AND NARROW BUT THEY ARE
STILL DANGEROUS. THEY CAN EASILY FLIP A VEHICLE OR TRAILER OR CAUSE
LARGE TREES TO FALL. TAKE COVER INSIDE A STURDY BUILDING IMMEDIATELY.

LAT...LON 2536 8025 2538 8027 2538 8029 2533 8033
      2533 8035 2529 8037 2529 8039 2527 8039
      2526 8041 2524 8043 2528 8070 2549 8062
      2542 8033 2538 8029 2538 8024
TIME...MOT...LOC 1315Z 106DEG 30KT 2533 8037

$$

GS
1 follow-up statement
000
WWUS52 KMFL 181342
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
942 AM EDT MON AUG 18 2008

FLC086-181351-
/O.EXP.KMFL.TO.W.0028.000000T0000Z-080818T1345Z/
MIAMI-DADE FL-
941 AM EDT MON AUG 18 2008

...THE TORNADO WARNING FOR SOUTH CENTRAL MIAMI-DADE COUNTY WILL
EXPIRE AT 945 AM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE TORNADO HAS
DISSIPATED. THUS THE TORNADO WARNING WILL EXPIRE AT 945 AM EDT.

THUNDERSTORMS REMAIN IN THE AREA HOWEVER, AND THE OVERALL 
ENVIRONMENT IS BECOMING MORE FAVORABLE FOR BRIEF, WEAK TORNADOES.

LAT...LON 2536 8025 2538 8027 2538 8029 2533 8033
      2533 8035 2529 8037 2529 8039 2527 8039
      2526 8041 2524 8043 2528 8070 2549 8062
      2542 8033 2538 8029 2538 8024
TIME...MOT...LOC 1341Z 106DEG 30KT 2539 8060

$$

GS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 8:02 PM EDTSpecial Marine WarningMFL28 min
Aug 17, 8:32 PM EDTSpecial Marine WarningMFL28 min
Aug 18, 2:15 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe75 min
Aug 18, 2:30 AM EDTFlood WatchMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more42 hr
Aug 18, 3:30 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe75 min
Aug 18, 6:19 AM EDTInland Tropical Storm WarningMFLBroward, Collier, Glades, Hendry, Miami-Dade, Palm Beach43 hr
Aug 18, 6:19 AM EDTTropical Storm WarningMFL43 hr
Aug 18, 6:19 AM EDTTropical Storm WarningMFLBroward, Collier, Miami-Dade, Monroe, Palm Beach36 hr
Aug 18, 6:43 AM EDTSpecial Marine WarningMFL47 min
Aug 18, 8:36 AM EDTSpecial Marine WarningMFL24 min
Aug 18, 8:42 AM EDTSpecial Weather StatementMFLBroward48 min
Aug 18, 8:58 AM EDTSpecial Marine WarningMFL32 min
Aug 18, 9:08 AM EDTSpecial Weather StatementMFLMiami-Dade52 min
Aug 18, 9:23 AM EDTSpecial Marine WarningMFL67 min
Aug 18, 10:17 AM EDTSpecial Weather StatementMFLPalm Beach28 min
Aug 18, 10:43 AM EDTSpecial Marine WarningMFL32 min
Aug 18, 10:58 AM EDTSpecial Weather StatementMFLMiami-Dade32 min
Aug 18, 11:05 AM EDTSpecial Marine WarningMFL25 min
Aug 18, 11:24 AM EDTSpecial Weather StatementMFLPalm Beach51 min
Aug 18, 11:52 AM EDTHurricane WarningMFL18 hr
Aug 18, 11:52 AM EDTHurricane WarningMFLCollier, Monroe18 hr
Aug 18, 12:11 PM EDTSpecial Weather StatementMFLMiami-Dade34 min
Aug 18, 2:25 PM EDTSpecial Marine WarningMFL65 min
Aug 18, 2:52 PM EDTTornado WarningMFLMiami-Dade23 min
Aug 18, 3:01 PM EDTTornado WarningMFLMiami-Dade29 min
Aug 18, 3:42 PM EDTSpecial Marine WarningMFL33 min
Aug 18, 4:13 PM EDTSpecial Marine WarningMFL92 min
Aug 18, 4:24 PM EDTSpecial Marine WarningMFL36 min
Aug 18, 4:40 PM EDTTornado WarningMFLBroward, Collier, Miami-Dade20 min
Aug 18, 4:43 PM EDTSpecial Marine WarningMFL47 min
Aug 18, 5:23 PM EDTSpecial Marine WarningMFL37 min
Aug 18, 5:23 PM EDTTornado WarningMFLPalm Beach22 min
Aug 18, 5:34 PM EDTSpecial Marine WarningMFL86 min
Aug 18, 5:45 PM EDTTornado WarningMFLBroward15 min
Aug 18, 6:12 PM EDTSpecial Marine WarningMFL63 min
Aug 18, 7:22 PM EDTSpecial Marine WarningMFL53 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.