Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 12, NWS Melbourne, FL

August 19, 2008Okeechobee County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 19, 2008, 3:06 AM EDT for Okeechobee County, Florida. It was in force for 39 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 19, 2008, 3:06 AM EDT (07:06 UTC)
Expired
Aug 19, 2008, 3:45 AM EDT
In force
39 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 101 km from the middle of the area, began a volume at 07:07 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 18, 10:44 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 7.1 hours before the alert went out and 143 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, Cape Canaveral, FL at 00:00Z on 2008-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 590 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, Cape Canaveral, FL at 00:00Z on 2008-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 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
590 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
-71 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 KMLB 190706
TORMLB
FLC093-190745-
/O.NEW.KMLB.TO.W.0012.080819T0706Z-080819T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
306 AM EDT TUE AUG 19 2008

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN OKEECHOBEE COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITY OF OKEECHOBEE...

* UNTIL 345 AM EDT

* AT 302 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SQUALL LINE CAPABLE OF PRODUCING A TORNADO 8 MILES SOUTHEAST OF OKEE 
TANTIE STATE PARK...OR ABOUT 11 MILES SOUTHEAST OF OKEECHOBEE... 
MOVING NORTHWEST AT 19 MPH.

* THE TORNADO WILL BE NEAR...
  OKEE TANTIE RECREATION AREA AND OKEE TANTIE STATE PARK BY 
  325 AM EDT...
  FOUR SEASONS ESTATES BY 330 AM EDT...
  OKEECHOBEE BY 335 AM EDT...

TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN
HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO
NOT GET CAUGHT OFFGUARD

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR. MOVE TO AN INTERIOR ROOM...SUCH AS A BATHROOM OR
CLOSET AND KEEP AWAY FROM WINDOWS. GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR
BODY.

TORNADOES AT NIGHT ARE DIFFICULT TO SEE. WATCH FOR THE POPPING OF 
ELECTRIC LINES AND TRANSFORMERS OR LISTEN FOR THE SOUND OF LOUD 
RUMBLING AS THAT OF AN APPROACHING FREIGHT TRAIN.

LAT...LON 2716 8088 2718 8090 2735 8105 2736 8104
      2739 8108 2740 8081 2715 8068 2714 8070
      2718 8075 2720 8080 2718 8084 2714 8086
      2714 8088
TIME...MOT...LOC 0704Z 143DEG 16KT 2710 8076

$$



BRAGAW
1 follow-up statement
000 
WWUS52 KMLB 190745
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
345 AM EDT TUE AUG 19 2008

FLC093-190755-
/O.EXP.KMLB.TO.W.0012.000000T0000Z-080819T0745Z/
OKEECHOBEE FL-
345 AM EDT TUE AUG 19 2008

...THE TORNADO WARNING FOR SOUTHERN OKEECHOBEE COUNTY HAS EXPIRED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM EDT TUESDAY MORNING
FOR EAST CENTRAL FLORIDA.

LAT...LON 2716 8088 2718 8090 2735 8105 2736 8104
      2739 8108 2740 8081 2715 8068 2714 8070
      2718 8075 2720 8080 2718 8084 2714 8086
      2714 8088
TIME...MOT...LOC 0706Z 143DEG 16KT 2711 8077

$$

52

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 1:32 AM EDTTornado WarningMLBMartin43 min
Aug 19, 2:15 AM EDTTornado WarningMLBMartin33 min
Aug 19, 5:50 AM EDTTornado WarningMLBSaint Lucie40 min
Aug 19, 6:28 AM EDTTornado WarningMLBSaint Lucie20 min
Aug 19, 6:28 AM EDTTornado WarningMLBMartin47 min
Aug 19, 6:45 AM EDTTornado WarningMLBMartin, Saint Lucie30 min
Aug 19, 8:43 AM EDTFlash Flood WarningMLBMartin2 hr
Aug 19, 9:03 AM EDTTornado WarningMLBMartin14 min
Aug 19, 9:52 AM EDTTornado WarningMLBMartin23 min
Aug 19, 10:51 AM EDTFlash Flood WarningMLBMartin, Saint Lucie114 min
Aug 19, 12:26 PM EDTFlash Flood WarningMLBIndian River, Martin, Okeechobee, Saint Lucie4 hr
Aug 19, 12:46 PM EDTTornado WarningMLBIndian River, Saint Lucie29 min
Aug 19, 1:28 PM EDTTornado WarningMLBBrevard, Osceola32 min
Aug 19, 1:53 PM EDTTornado WarningMLBIndian River22 min
Aug 19, 2:17 PM EDTTornado WarningMLBIndian River28 min
Aug 19, 2:30 PM EDTFlash Flood WarningMLBBrevard4 hr
Aug 19, 3:23 PM EDTTornado WarningMLBOsceola34 min
Aug 19, 4:21 PM EDTAreal Flood WarningMLBIndian River, Martin, Okeechobee, Osceola, Saint Lucie4 hr
Aug 19, 4:29 PM EDTTornado WarningMLBBrevard31 min
Aug 19, 6:13 PM EDTFlash Flood WarningMLBBrevard3 hr

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.