Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 31, NWS Melbourne, FL

November 30, 2008Volusia County, Florida

NWS Melbourne, FL issued this tornado warning at Nov 30, 2008, 1:35 PM EST for Volusia County, Florida. It was in force for 25 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
Nov 30, 2008, 1:35 PM EST (18:35 UTC)
Expired
Nov 30, 2008, 2:00 PM EST
In force
25 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 93 km from the middle of the area, began a volume at 18:38 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
Nov 30, 9:51 AM ESTTornado WatchSPC7 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.6 hours before the alert went out and 63 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 12:00Z on 2008-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 70 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 12:00Z on 2008-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 348 square meters per square second.1939587897117Sfc1 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
70 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
348 m²/s²
0-3 km storm-relative helicity
437 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 301835
TORMLB
FLC127-301900-
/O.NEW.KMLB.TO.W.0031.081130T1835Z-081130T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
135 PM EST SUN NOV 30 2008

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN VOLUSIA COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...OAK HILL...EDGEWATER...

* UNTIL 200 PM EST

* AT 130 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF
  OAK HILL...OR NEAR MAYTOWN...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  BETHUNE BEACH AND ELDORA BY 140 PM EST...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DESTRUCTIVE STRAIGHT LINE WINDS.

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 IS EXPECTED TO DEVELOP SHORTLY. 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.

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

EVACUATE MOBILE HOMES OR VEHICLES FOR MORE SUBSTANTIAL SHELTER. IF NO
SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS. ABANDON YOUR VEHICLE IF THE
TORNADO IS NEARBY.

LAT...LON 2903 8089 2888 8079 2888 8081 2892 8083
      2898 8087 2898 8089 2889 8084 2887 8084
      2884 8097 2889 8103
TIME...MOT...LOC 1835Z 218DEG 44KT 2892 8090

$$

SEDLOCK
1 follow-up statement
000 
WWUS52 KMLB 301858
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
158 PM EST SUN NOV 30 2008

FLC127-301907-
/O.EXP.KMLB.TO.W.0031.000000T0000Z-081130T1900Z/
VOLUSIA FL-
157 PM EST SUN NOV 30 2008

...THE TORNADO WARNING FOR SOUTHEASTERN VOLUSIA COUNTY WILL EXPIRE AT
200 PM EST...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM 
THAT PROMPTED THE WARNING HAD MOVED EAST OF THE WARNING AREA INTO 
THE COASTAL WATERS OF THE WESTERN ATLANTIC...THUS THE WARNING HAS 
BEEN ALLOWED TO EXPIRE. A SPECIAL MARINE WARNING REMAINS IN EFFECT 
UNTIL 245 PM EST FOR THE COASTAL WATERS OFF OF THE VOLUSIA AND 
NORTHERN BREVARD COUNTY COASTS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST SUNDAY EVENING FOR
EAST CENTRAL FLORIDA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
500 PM EST SUNDAY AFTERNOON FOR EAST CENTRAL FLORIDA.

LAT...LON 2903 8089 2888 8079 2888 8081 2892 8083
      2898 8087 2898 8089 2889 8084 2887 8084
      2884 8097 2889 8103
TIME...MOT...LOC 1857Z 218DEG 44KT 2913 8071

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 3:40 AM ESTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia14 hr
Nov 30, 12:24 PM ESTSevere Thunderstorm WarningMLBIndian River, Saint Lucie27 min
Nov 30, 12:54 PM ESTTornado WarningMLBOrange, Seminole39 min
Nov 30, 1:23 PM ESTSpecial Marine WarningMLB82 min
Nov 30, 1:49 PM ESTTornado WarningMLBBrevard, Volusia31 min
Nov 30, 2:13 PM ESTSpecial Marine WarningMLB42 min
Nov 30, 2:50 PM ESTSevere Thunderstorm WarningMLBBrevard, Osceola55 min
Nov 30, 2:53 PM ESTSpecial Marine WarningMLB112 min
Nov 30, 2:59 PM ESTSevere Thunderstorm WarningMLBIndian River, Okeechobee48 min
Nov 30, 3:09 PM ESTSevere Thunderstorm WarningMLBBrevard36 min
Nov 30, 3:45 PM ESTSevere Thunderstorm WarningMLBBrevard, Indian River, Okeechobee, Saint Lucie45 min
Nov 30, 4:32 PM ESTSevere Thunderstorm WarningMLBMartin, Saint Lucie56 min
Nov 30, 4:41 PM ESTSpecial Marine WarningMLB2 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.