Alert archive / Florida / Tornado Warnings in 2013

Tornado Warning 10, NWS Melbourne, FL

April 14, 20134 counties in Florida

NWS Melbourne, FL issued this tornado warning at Apr 14, 2013, 6:43 PM EDT for 4 counties in Florida. It was in force for 62 min. 4 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
Apr 14, 2013, 6:43 PM EDT (22:43 UTC)
Expired
Apr 14, 2013, 7:45 PM EDT
In force
62 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Brevard County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 88 km from the middle of the area, began a volume at 22:46 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
Apr 14, 6:45 PM EDTHAIL 0.754 Ne Altamonte Springs, FLA STORM SPOTTER REPORTED PENNY SIZED HAIL IN LONGWOOD OFF OF LAKE MARY ROAD AT 645PM LOCAL.
Apr 14, 6:45 PM EDTHAIL 0.885 Ene Altamonte Springs, FLA STORM SPOTTER IN CASSELBERRY LOCATED BETWEEN STATE ROADS 17-92 AND 434 REPORTED NICKEL SIZED HAIL AT 645PM LOCAL.
Apr 14, 6:55 PM EDTHAIL 0.755 S Sanford, FLA MEMBER OF THE PUBLIC REPORTED PENNY-SIZED HAIL SOUTH OF SANFORD AT 655PM LOCAL.
Apr 14, 7:45 PM EDTHAIL 0.25Winter Springs, FLA HAM OPERATOR REPORTED PEA-SIZED HAIL NEAR THE CORNER OF RED BUG LAKE ROAD AND TUSKAWILLA ROAD IN WINTER SPRINGS AT 745 PM LOCAL.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 14, 1:52 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.7 hours before the alert went out and 180 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, Tampa Bay, FL at 12:00Z on 2013-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 846 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, Tampa Bay, FL at 12:00Z on 2013-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.1939587897Sfc1 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
846 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

167 
WFUS52 KMLB 142243
TORMLB
FLC009-095-117-127-142345-
/O.NEW.KMLB.TO.W.0010.130414T2243Z-130414T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
643 PM EDT SUN APR 14 2013

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME NORTHWESTERN BREVARD COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF SCOTTSMOOR...
  CENTRAL ORANGE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...WINTER PARK...UNIVERSITY OF CENTRAL
  FLORIDA...MAITLAND...GOLDENROD...
  SEMINOLE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...WINTER SPRINGS...SANFORD...OVIEDO...
  LONGWOOD...LAKE MARY...LAKE JESSUP...GENEVA...CHULUOTA...
  CASSELBERRY...
  SOUTHEASTERN VOLUSIA COUNTY IN FLORIDA...

* UNTIL 745 PM EDT.

* AT 641 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WINTER
  SPRINGS...MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SANFORD AIRPORT...MIDWAY...OSTEEN AND MAYTOWN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 2905 8099 2878 8083 2870 8083 2853 8135
      2878 8141
TIME...MOT...LOC 2243Z 245DEG 22KT 2869 8128

$$


MOSES
2 follow-up statements
228 
WWUS52 KMLB 142314
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
714 PM EDT SUN APR 14 2013

FLC095-142323-
/O.CAN.KMLB.TO.W.0010.000000T0000Z-130414T2345Z/
ORANGE-
714 PM EDT SUN APR 14 2013

...THE TORNADO WARNING FOR CENTRAL ORANGE COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT SUNDAY EVENING
FOR EASTERN FLORIDA.

LAT...LON 2905 8099 2878 8083 2876 8084 2870 8083
      2861 8110 2861 8125 2893 8117
TIME...MOT...LOC 2313Z 269DEG 20KT 2867 8108

$$

FLC009-117-127-142345-
/O.CON.KMLB.TO.W.0010.000000T0000Z-130414T2345Z/
SEMINOLE-VOLUSIA-BREVARD-
714 PM EDT SUN APR 14 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR EXTREME
NORTHWESTERN BREVARD...SOUTHEASTERN VOLUSIA AND EASTERN SEMINOLE
COUNTIES...

AT 709 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR CHULUOTA...MOVING
EAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FARMTON...LAKE HARNEY...MAYTOWN...AURANTIA...TURNBULL AND SCOTTSMOOR

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM HAS A HISTORY OF PRODUCING 
NICKEL TO QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT SUNDAY EVENING
FOR EASTERN FLORIDA.

&&

LAT...LON 2905 8099 2878 8083 2876 8084 2870 8083
      2861 8110 2861 8125 2893 8117
TIME...MOT...LOC 2313Z 269DEG 20KT 2867 8108

$$


MOSES
200 
WWUS52 KMLB 142324
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
724 PM EDT SUN APR 14 2013

FLC009-117-127-142334-
/O.CAN.KMLB.TO.W.0010.000000T0000Z-130414T2345Z/
SEMINOLE-VOLUSIA-BREVARD-
724 PM EDT SUN APR 14 2013

...THE TORNADO WARNING FOR EXTREME NORTHWESTERN BREVARD...
SOUTHEASTERN VOLUSIA AND EASTERN SEMINOLE COUNTIES IS CANCELLED...

THE SEVERE STORMS 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT SUNDAY EVENING
FOR EASTERN FLORIDA.

LAT...LON 2905 8099 2878 8083 2876 8084 2870 8083
      2861 8110 2861 8125 2893 8117
TIME...MOT...LOC 2324Z 269DEG 20KT 2867 8101

$$


MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 2:41 PM EDTAreal Flood AdvisoryMLBBrevard109 min
Apr 14, 3:34 PM EDTSpecial Weather StatementMLBSeminole, Volusia56 min
Apr 14, 4:40 PM EDTSpecial Weather StatementMLBVolusia95 min
Apr 14, 4:46 PM EDTSpecial Marine WarningMLB89 min
Apr 14, 5:08 PM EDTSpecial Weather StatementMLBLake82 min
Apr 14, 5:30 PM EDTTornado WarningMLBLake45 min
Apr 14, 5:53 PM EDTSevere Thunderstorm WarningMLBLake, Orange, Seminole, Volusia52 min
Apr 14, 6:31 PM EDTSpecial Weather StatementMLBOrange, Osceola44 min
Apr 14, 6:38 PM EDTSevere Thunderstorm WarningMLBOrange, Seminole, Volusia67 min
Apr 14, 6:41 PM EDTSpecial Marine WarningMLB2 hr
Apr 14, 6:43 PM EDTSpecial Weather StatementMLBVolusia47 min
Apr 14, 6:58 PM EDTAreal Flood AdvisoryMLBVolusia2 hr
Apr 14, 7:24 PM EDTSpecial Weather StatementMLBBrevard, Osceola66 min
Apr 14, 7:36 PM EDTSpecial Weather StatementMLBOrange, Seminole39 min

Nearby

Tornado Warnings in Florida, 2013Every tornado warning in 2013Tornadoes in 2013

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.