Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 16, NWS Melbourne, FL

March 31, 2011Brevard County, Florida

NWS Melbourne, FL issued this tornado warning at Mar 31, 2011, 12:15 PM EDT for Brevard County, Florida. It was in force for 19 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: Mar 31, 2011, 12:15 PM EDT (16:15 UTC)
Expired: Mar 31, 2011, 12:34 PM EDT
In force: 19 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 60 km from the middle of the area, began a volume at 16:14 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.

Issued	Product	Office	Lasted
Mar 31, 6:00 AM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 4.3 hours before the alert went out and 31 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: 81 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 228 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.

684 
WFUS52 KMLB 311615
TORMLB
FLC009-311645-
/O.NEW.KMLB.TO.W.0016.110331T1615Z-110331T1645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1215 PM EDT THU MAR 31 2011

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN BREVARD COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...TITUSVILLE...SCOTTSMOOR...PLAYALINDA
  BEACH...MIMS...HAULOVER CANAL...

* UNTIL 1245 PM EDT.

* AT 1210 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MIMS...
  MOVING EAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MERRITT ISLAND WILDLIFE REFUGE...KENNEDY SPACE CENTER AND KLONDIKE
  BEACH

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.

&&

LAT...LON 2858 8060 2850 8063 2851 8073 2860 8073
      2864 8079 2852 8078 2853 8090 2878 8093
      2878 8084 2863 8081 2871 8075 2878 8083
      2879 8078 2866 8067 2868 8066 2878 8074
      2878 8072 2850 8055
TIME...MOT...LOC 1615Z 266DEG 48KT 2868 8075

$$


MOSES

1 follow-up statement

824 
WWUS52 KMLB 311634
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1234 PM EDT THU MAR 31 2011

FLC009-311644-
/O.CAN.KMLB.TO.W.0016.000000T0000Z-110331T1645Z/
BREVARD-
1234 PM EDT THU MAR 31 2011

...THE TORNADO WARNING FOR NORTHERN BREVARD COUNTY IS CANCELLED...

THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED
THE WARNING AREA...THUS THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.

LAT...LON 2858 8060 2850 8063 2851 8073 2860 8073
      2864 8079 2852 8078 2853 8090 2878 8093
      2878 8084 2863 8081 2871 8075 2878 8083
      2879 8078 2866 8067 2868 8066 2878 8074
      2878 8072 2850 8055
TIME...MOT...LOC 1634Z 266DEG 48KT 2870 8046

$$


MOSES

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 12:38 AM EDT	Special Marine Warning	MLB		82 min
Mar 31, 3:42 AM EDT	Small Craft Advisory for Winds	MLB		24 hr
Mar 31, 6:16 AM EDT	Special Weather Statement	MLB	Lake	59 min
Mar 31, 6:58 AM EDT	Special Weather Statement	MLB	Brevard, Lake, Orange, Osceola, Seminole, Volusia	62 min
Mar 31, 7:04 AM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole, Volusia	56 min
Mar 31, 7:27 AM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Osceola	63 min
Mar 31, 7:33 AM EDT	Special Marine Warning	MLB		117 min
Mar 31, 7:43 AM EDT	Tornado Warning	MLB	Brevard, Seminole, Volusia	42 min
Mar 31, 8:13 AM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Volusia	47 min
Mar 31, 8:30 AM EDT	Severe Thunderstorm Warning	MLB	Brevard, Indian River, Osceola	27 min
Mar 31, 9:01 AM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Osceola	59 min
Mar 31, 10:16 AM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole	59 min
Mar 31, 10:37 AM EDT	Tornado Warning	MLB	Lake, Orange, Seminole, Volusia	53 min
Mar 31, 10:38 AM EDT	Special Marine Warning	MLB		2 hr
Mar 31, 11:31 AM EDT	Special Weather Statement	MLB	Lake, Orange, Seminole, Volusia	44 min
Mar 31, 11:51 AM EDT	Tornado Warning	MLB	Brevard, Seminole, Volusia	24 min
Mar 31, 12:31 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Osceola	59 min
Mar 31, 12:32 PM EDT	Tornado Warning	MLB	Osceola	43 min
Mar 31, 12:47 PM EDT	Special Marine Warning	MLB		88 min
Mar 31, 1:05 PM EDT	Tornado Warning	MLB	Brevard, Osceola	23 min
Mar 31, 1:59 PM EDT	Special Marine Warning	MLB		2 hr
Mar 31, 2:15 PM EDT	Special Weather Statement	MLB	Lake, Volusia	45 min
Mar 31, 2:21 PM EDT	Special Marine Warning	MLB		54 min
Mar 31, 3:58 PM EDT	Special Weather Statement	MLB	Orange	62 min
Mar 31, 5:52 PM EDT	Special Weather Statement	MLB	Indian River	53 min
Mar 31, 5:53 PM EDT	Special Marine Warning	MLB		112 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.