Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 26, NWS Melbourne, FL

August 16, 2011Indian River County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 16, 2011, 3:30 PM EDT for Indian River County, Florida. It was in force for 49 min. 2 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
Aug 16, 2011, 3:30 PM EDT (19:30 UTC)
Expired
Aug 16, 2011, 4:19 PM EDT
In force
49 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 54 km from the middle of the area, began a volume at 19:31 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
Aug 16, 3:56 PM EDTTSTM WND GST 59Vero Beach, FLCORRECTION TO PREVIOUS STORM REPORT KVRB MEASURED A 51 KT/59 MPH WIND GUST.
Aug 16, 3:56 PM EDTTSTM WND GST 68Vero Beach, FLKVRB MEASURED A 59 KT/68 MPH WIND GUST.

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, 7.5 hours before the alert went out and 89 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 2011-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 215 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 2011-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
215 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
33 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.

229 
WFUS52 KMLB 161930
TORMLB
FLC061-162030-
/O.NEW.KMLB.TO.W.0026.110816T1930Z-110816T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
330 PM EDT TUE AUG 16 2011

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN INDIAN RIVER COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...WINTER BEACH...WABASSO...VERO BEACH
  SOUTH...VERO BEACH...INDIAN RIVER SHORES...GIFFORD...

* UNTIL 430 PM EDT.

* AT 326 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WINTER
  BEACH...MOVING EAST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  INDIAN RIVER SHORES.

THIS STORM SHOWED SIGNS OF ROTATION AND COULD PRODUCE A TORNADO AT
ANY TIME. DONT GET CAUGHT OFF GUARD!

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 2756 8039 2763 8057 2779 8047 2777 8039
      2775 8038 2771 8036 2764 8034
TIME...MOT...LOC 1929Z 264DEG 4KT 2769 8046

$$


KELLY
2 follow-up statements
551 
WWUS52 KMLB 161942
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
342 PM EDT TUE AUG 16 2011

FLC061-162030-
/O.CON.KMLB.TO.W.0026.000000T0000Z-110816T2030Z/
INDIAN RIVER-
342 PM EDT TUE AUG 16 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR EASTERN 
INDIAN RIVER COUNTY...

AT 340 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A TORNADO ON DOPPLER RADAR.  THIS TORNADO WAS LOCATED JUST 
WEST OF GIFFORD...MOVING SOUTHEAST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VERO 
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 2756 8039 2763 8057 2775 8048 2774 8042
      2772 8039 2770 8037 2766 8035 2764 8034
TIME...MOT...LOC 1941Z 328DEG 6KT 2767 8044

$$


KELLY
488 
WWUS52 KMLB 162019
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
419 PM EDT TUE AUG 16 2011

FLC061-162028-
/O.CAN.KMLB.TO.W.0026.000000T0000Z-110816T2030Z/
INDIAN RIVER-
419 PM EDT TUE AUG 16 2011

...THE TORNADO WARNING FOR SOUTHEASTERN INDIAN RIVER COUNTY IS
CANCELLED...

THE SEVERE STORM AND TORNADO THAT PROMPTED THE WARNING HAD WEAKENED
AND NO LONGER APPEARED CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE
WEATHER...THUS THE WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN
AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE.

LAT...LON 2756 8039 2763 8057 2775 8048 2774 8042
      2772 8039 2770 8037 2766 8035 2764 8034
TIME...MOT...LOC 2018Z 328DEG 6KT 2762 8040

$$


KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 2:04 PM EDTSpecial Marine WarningMLB116 min
Aug 16, 2:36 PM EDTSpecial Weather StatementMLBBrevard39 min
Aug 16, 4:00 PM EDTAreal Flood AdvisoryMLBIndian River90 min
Aug 16, 4:28 PM EDTSpecial Weather StatementMLBSaint Lucie62 min
Aug 16, 4:49 PM EDTSpecial Weather StatementMLBMartin41 min
Aug 16, 4:56 PM EDTSevere Thunderstorm WarningMLBMartin29 min
Aug 16, 5:10 PM EDTSpecial Weather StatementMLBOrange65 min
Aug 16, 5:17 PM EDTAreal Flood AdvisoryMLBMartin118 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.