Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 20, NWS Melbourne, FL

June 18, 2011Volusia County, Florida

NWS Melbourne, FL issued this tornado warning at Jun 18, 2011, 5:10 PM EDT for Volusia County, Florida. It was in force for 46 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 18, 2011, 5:10 PM EDT (21:10 UTC)
Expired
Jun 18, 2011, 5:56 PM EDT
In force
46 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 21:11 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.

What was reported inside it

TimeReportWhereRemark
Jun 18, 5:15 PM EDTTSTM WND DMG3 S Daytona Beach, FL2 FOOT DIAMETER TREE TOPPLED ONTO SIDEWALK NEAR NOVA RD. AND BEVILLE RD. TIME ESTIMATED FROM RADAR.
Jun 18, 5:15 PM EDTTSTM WND DMGDaytona Beach, FL6 INCH DIAMETER TREE LIMB DOWN IN YARD ON NOVA RD. BETWEEN CEDAR ST. AND SOUTH ST. TIME ESTIMATED FROM RADAR.
Jun 18, 5:37 PM EDTTSTM WND DMG4 Sw Daytona Beach, FLEMERGENCY MANAGEMENT RELAYED REPORT FROM DEPT OF FORESTRY OF KMART SIGN DAMAGED AND PARTS ON ROAD AT US 92 AND WEST INTERNATIONAL SPEEDWAY BLVD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.2 hours before the alert went out and 95 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 2011-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 122 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2011-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
122 J/kg
Mixed-layer CIN
-222 J/kg
Mixed-layer LCL
1401 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
28 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.

040 
WFUS52 KMLB 182110
TORMLB
FLC127-182215-
/O.NEW.KMLB.TO.W.0020.110618T2110Z-110618T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
510 PM EDT SAT JUN 18 2011

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN VOLUSIA COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...SOUTH DAYTONA...PORT ORANGE...PONCE
  INLET...ORMOND BEACH...HOLLY HILL...DAYTONA BEACH...

* UNTIL 615 PM EDT.

* AT 506 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR  DAYTONA   
  BEACH...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WILBUR BY THE SEA

THE IMMEDIATE DANGER OF A TORNADO IS HIGH. PEOPLE IN THE PATH OF THIS
DEVELOPING TORNADO ARE URGED TO QUICKLY PREPARE FOR ITS APPROACH.
THIS IS A DANGEROUS SITUATION! ACT NOW AS SECONDS CAN SAVE LIVES!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

IT IS VERY RISKY TO REMAIN IN A MOBILE HOME DURING A TORNADO. MOBILE
HOMES OFFER LITTLE PROTECTION AGAINST TORNADO WINDS EVEN IF THEY ARE
TIED DOWN. IF YOU ARE IN THE PATH OF A TORNADO AND ARE IN A MOBILE
HOME...ABANDON IT FOR SAFE SHELTER. QUICKLY MOVE TO THE NEAREST
STURDY BUILDING AND GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR. PUT
AS MANY WALLS BETWEEN YOU AND THE TORNADO AS POSSIBLE.

&&

LAT...LON 2932 8104 2929 8103 2926 8101 2926 8100
      2925 8100 2915 8096 2910 8091 2908 8091
      2906 8089 2905 8089 2916 8118 2933 8111
TIME...MOT...LOC 2110Z 316DEG 11KT 2919 8104

$$


KELLY
2 follow-up statements
745 
WWUS52 KMLB 182122
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
522 PM EDT SAT JUN 18 2011

FLC127-182215-
/O.CON.KMLB.TO.W.0020.000000T0000Z-110618T2215Z/
VOLUSIA-
522 PM EDT SAT JUN 18 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR EASTERN
VOLUSIA COUNTY...

AT 515 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A TORNADO ON DOPPLER RADAR.  THIS TORNADO WAS LOCATED NEAR 
BLAKE...OR NEAR DAYTONA BEACH...MOVING SOUTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTH
DAYTONA...DAYTONA BEACH SHORES...PORT ORANGE...ALLANDALE...WILBUR BY 
THE SEA...HARBOR OAKS AND PONCE INLET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS 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 2923 8108 2926 8103 2924 8099 2915 8096
      2910 8091 2908 8091 2906 8089 2905 8089
      2915 8114
TIME...MOT...LOC 2121Z 316DEG 11KT 2917 8102

$$


KELLY
970 
WWUS52 KMLB 182156
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
556 PM EDT SAT JUN 18 2011

FLC127-182204-
/O.CAN.KMLB.TO.W.0020.000000T0000Z-110618T2215Z/
VOLUSIA-
556 PM EDT SAT JUN 18 2011

...THE TORNADO WARNING FOR EASTERN VOLUSIA COUNTY IS CANCELLED...

THE SEVERE STORM THAT PROMPTED THE WARNING FOR DAYTONA BEACH HAS 
PUSHED OFFSHORE...THUS THE WARNING HAS BEEN CANCELLED. ADDITIONAL 
SEVERE STORMS CAPABLE OF PRODUCING DAMAGING WINDS AND A TORNADO WILL 
AFFECT OTHER SECTIONS OF CENTRAL AND SOUTHERN VOLUSIA COUNTY THROUGH 
7 PM.

LAT...LON 2923 8108 2926 8103 2924 8099 2915 8096
      2910 8091 2908 8091 2906 8089 2905 8089
      2915 8114
TIME...MOT...LOC 2154Z 316DEG 11KT 2910 8094

$$


KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 8:15 PM EDTSevere Thunderstorm WarningMLBSeminole, Volusia60 min
Jun 17, 8:45 PM EDTAreal Flood AdvisoryMLBLake, Orange, Seminole, Volusia2 hr
Jun 17, 9:11 PM EDTSpecial Weather StatementMLBSeminole49 min
Jun 18, 3:45 PM EDTSpecial Weather StatementMLBFlagler45 min
Jun 18, 4:22 PM EDTSpecial Weather StatementMLBLake38 min
Jun 18, 4:49 PM EDTSpecial Weather StatementMLBVolusia41 min
Jun 18, 4:51 PM EDTSpecial Marine WarningMLB114 min
Jun 18, 4:51 PM EDTSpecial Weather StatementMLBIndian River39 min
Jun 18, 4:53 PM EDTSpecial Weather StatementMLBOsceola82 min
Jun 18, 5:01 PM EDTSevere Thunderstorm WarningMLBVolusia44 min
Jun 18, 5:02 PM EDTSpecial Weather StatementMLBVolusia43 min
Jun 18, 5:08 PM EDTSevere Thunderstorm WarningMLBLake, Volusia37 min
Jun 18, 5:18 PM EDTSevere Thunderstorm WarningMLBBrevard, Indian River57 min
Jun 18, 5:39 PM EDTTornado WarningMLBVolusia51 min
Jun 18, 5:56 PM EDTSevere Thunderstorm WarningMLBVolusia64 min
Jun 18, 6:00 PM EDTSpecial Marine WarningMLB2 hr
Jun 18, 6:13 PM EDTTornado WarningMLBSeminole, Volusia47 min
Jun 18, 6:18 PM EDTSpecial Weather StatementMLBOrange, Seminole117 min
Jun 18, 6:18 PM EDTSevere Thunderstorm WarningMLBSeminole, Volusia57 min
Jun 18, 6:43 PM EDTSevere Thunderstorm WarningMLBOrange, Osceola, Seminole62 min
Jun 18, 6:52 PM EDTSevere Thunderstorm WarningMLBBrevard53 min
Jun 18, 7:10 PM EDTTornado WarningMLBOrange, Osceola50 min
Jun 18, 7:22 PM EDTTornado WarningMLBOrange, Seminole38 min
Jun 18, 7:29 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Osceola46 min
Jun 18, 7:53 PM EDTAreal Flood AdvisoryMLBBrevard, Orange, Seminole112 min
Jun 18, 7:54 PM EDTSpecial Marine WarningMLB111 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.