Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 22, NWS Melbourne, FL

June 18, 2011Seminole County, Volusia County, Florida

NWS Melbourne, FL issued this tornado warning at Jun 18, 2011, 6:13 PM EDT for Seminole County, Volusia County, Florida. It was in force for 47 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: Jun 18, 2011, 6:13 PM EDT (22:13 UTC)
Expired: Jun 18, 2011, 7:00 PM EDT
In force: 47 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

Counties Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 94 km from the middle of the area, began a volume at 22:17 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.2 hours before the alert went out and 64 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

014 
WFUS52 KMLB 182213
TORMLB
FLC117-127-182300-
/O.NEW.KMLB.TO.W.0022.110618T2213Z-110618T2300Z/

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN SEMINOLE COUNTY IN FLORIDA...
  SOUTHEASTERN VOLUSIA COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...OAK HILL...NEW SMYRNA BEACH...PONCE  
  INLET...EDGEWATER...

* UNTIL 700 PM EDT.

* AT 607 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR OSTEEN...
  MOVING NORTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ELDORA...BETHUNE BEACH...WILBUR BY THE SEA AND APOLLO BEACH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.

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.

&&

LAT...LON 2909 8091 2908 8091 2906 8089 2900 8086
      2894 8082 2894 8081 2883 8075 2883 8078
      2887 8080 2885 8081 2886 8082 2882 8081
      2874 8109 2885 8120 2915 8096
TIME...MOT...LOC 2213Z 217DEG 11KT 2889 8109

$$

GUSEMAN

2 follow-up statements

788 
WWUS52 KMLB 182233
SVSMLB

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

FLC117-182242-
/O.CAN.KMLB.TO.W.0022.000000T0000Z-110618T2300Z/
SEMINOLE-
633 PM EDT SAT JUN 18 2011

...THE TORNADO WARNING FOR NORTHEASTERN SEMINOLE COUNTY IS
CANCELLED...

LAT...LON 2908 8091 2906 8089 2900 8086 2894 8082
      2894 8081 2883 8075 2884 8078 2887 8080
      2885 8081 2886 8082 2882 8081 2875 8106
      2880 8106 2882 8110 2910 8091
TIME...MOT...LOC 2232Z 243DEG 9KT 2881 8101

$$

FLC127-182300-
/O.CON.KMLB.TO.W.0022.000000T0000Z-110618T2300Z/
VOLUSIA-
633 PM EDT SAT JUN 18 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHEASTERN VOLUSIA COUNTY...

AT 631 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED NEAR MAYTOWN...MOVING
NORTHEAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO OAK 
HILL...NEW SMYRNA BEACH...TURTLE MOUND...EDGEWATER AND APOLLO BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

&&

LAT...LON 2908 8091 2906 8089 2900 8086 2894 8082
      2894 8081 2883 8075 2884 8078 2887 8080
      2885 8081 2886 8082 2882 8081 2875 8106
      2880 8106 2882 8110 2910 8091
TIME...MOT...LOC 2232Z 243DEG 9KT 2881 8101

$$

GUSEMAN

067 
WWUS52 KMLB 182257
SVSMLB

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

FLC127-182306-
/O.EXP.KMLB.TO.W.0022.000000T0000Z-110618T2300Z/
VOLUSIA-
657 PM EDT SAT JUN 18 2011

...THE TORNADO WARNING FOR SOUTHEASTERN VOLUSIA COUNTY WILL EXPIRE AT
700 PM EDT...

THE STORM THAT PROMPTED THE WARNING NO LONGER APPEARED CAPABLE OF 
PRODUCING TORNADOES...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. 
HOWEVER...HEAVY RAIN AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE 
TO BE POSSIBLE.

LAT...LON 2908 8091 2906 8089 2900 8086 2894 8082
      2894 8081 2883 8075 2884 8078 2887 8080
      2885 8081 2886 8082 2882 8081 2875 8106
      2880 8106 2882 8110 2910 8091
TIME...MOT...LOC 2256Z 243DEG 9KT 2884 8095

$$

GUSEMAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 8:15 PM EDT	Severe Thunderstorm Warning	MLB	Seminole, Volusia	60 min
Jun 17, 8:45 PM EDT	Areal Flood Advisory	MLB	Lake, Orange, Seminole, Volusia	2 hr
Jun 17, 9:11 PM EDT	Special Weather Statement	MLB	Seminole	49 min
Jun 18, 3:45 PM EDT	Special Weather Statement	MLB	Flagler	45 min
Jun 18, 4:22 PM EDT	Special Weather Statement	MLB	Lake	38 min
Jun 18, 4:49 PM EDT	Special Weather Statement	MLB	Volusia	41 min
Jun 18, 4:51 PM EDT	Special Marine Warning	MLB		114 min
Jun 18, 4:51 PM EDT	Special Weather Statement	MLB	Indian River	39 min
Jun 18, 4:53 PM EDT	Special Weather Statement	MLB	Osceola	82 min
Jun 18, 5:01 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	44 min
Jun 18, 5:02 PM EDT	Special Weather Statement	MLB	Volusia	43 min
Jun 18, 5:08 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Volusia	37 min
Jun 18, 5:10 PM EDT	Tornado Warning	MLB	Volusia	46 min
Jun 18, 5:18 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Indian River	57 min
Jun 18, 5:39 PM EDT	Tornado Warning	MLB	Volusia	51 min
Jun 18, 5:56 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	64 min
Jun 18, 6:00 PM EDT	Special Marine Warning	MLB		2 hr
Jun 18, 6:18 PM EDT	Special Weather Statement	MLB	Orange, Seminole	117 min
Jun 18, 6:18 PM EDT	Severe Thunderstorm Warning	MLB	Seminole, Volusia	57 min
Jun 18, 6:43 PM EDT	Severe Thunderstorm Warning	MLB	Orange, Osceola, Seminole	62 min
Jun 18, 6:52 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	53 min
Jun 18, 7:10 PM EDT	Tornado Warning	MLB	Orange, Osceola	50 min
Jun 18, 7:22 PM EDT	Tornado Warning	MLB	Orange, Seminole	38 min
Jun 18, 7:29 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola	46 min
Jun 18, 7:53 PM EDT	Areal Flood Advisory	MLB	Brevard, Orange, Seminole	112 min
Jun 18, 7:54 PM EDT	Special Marine Warning	MLB		111 min

Nearby

Tornado Warnings in Florida, 2011 Every tornado warning in 2011 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.