Alert archive / Florida / Tornado Warnings in 2013

Tornado Warning 14, NWS Melbourne, FL

April 30, 2013Lake County, Orange County, Florida

NWS Melbourne, FL issued this tornado warning at Apr 30, 2013, 6:57 PM EDT for Lake County, Orange County, Florida. It was in force for 33 min. 5 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 30, 2013, 6:57 PM EDT (22:57 UTC)
Expired
Apr 30, 2013, 7:30 PM EDT
In force
33 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Lake County, FL, Orange County, FL

The radar

The Melbourne radar (KMLB), 121 km from the middle of the area, began a volume at 22:57 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 30, 7:10 PM EDTTSTM WND DMG2 S Mount Dora, FLSKYWARN SPOTTER REPORTED HUGE ESTIMATED 3 FT DIAMETER OAK TREE BLEW DOWN AND DAMAGED FENCE IN YARD. DIME SIZE HAIL OBSERVED.
Apr 30, 7:10 PM EDTHAIL 14 Se Eustis, FLSKYWARN SPOTTER REPORTED QUARTER SIZE HAIL.
Apr 30, 7:15 PM EDTHAIL 0.886 S Eustis, FLSKYWARN SPOTTER IN TAVARES REPORTED NICKEL SIZE HAIL.
Apr 30, 7:30 PM EDTTSTM WND DMG4 S Mount Dora, FLNWS GROUND SURVEY INDICATED A NORTHWEST TO SOUTHEAST ORIENTED LINE OF STRAIGHT LINE THUNDERSTORM WIND DAMAGE. NUMEROUS OAK TREES AND LARGE LIMBS BLOWN DOWN. ESTIMATED WIND SPEEDS OF 60 TO 80 MPH OCCURRED.
Apr 30, 7:35 PM EDTTSTM WND DMG4 S Mount Dora, FLOAK TREES UPROOTED AND DOWN, LARGE LIMBS, POWERLINES AND WOODEN FENCE BLOWN DOWN OVER WIDE AREA NEAR INTERSECTION OF DORA DRIVE AND SADLER RD. IN ZELLWOOD.

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

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 11.0 hours before the alert went out and 141 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 2013-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 495 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 2013-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.19395878Sfc1 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
495 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-1.3

Open this sounding in Storm Lab

The text

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

027 
WFUS52 KMLB 302257
TORMLB
FLC069-095-302330-
/O.NEW.KMLB.TO.W.0014.130430T2257Z-130430T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
657 PM EDT TUE APR 30 2013

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LAKE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...TAVARES...MOUNT DORA...
  NORTHWESTERN ORANGE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF ZELLWOOD...

* UNTIL 730 PM EDT.

* AT 653 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
A   SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TAVARES 
AND LAKE DORA  MOVING SOUTHEAST AT 5 MPH.

THIS STORM LIKELY CONTAINS LARGE HAIL TO QUARTER SIZE AND STRONG 
WINDS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
TANGERINE.

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 2877 8151 2866 8170 2882 8175 2885 8169
TIME...MOT...LOC 2256Z 322DEG 6KT 2880 8171

$$

SEDLOCK
2 follow-up statements
454 
WWUS52 KMLB 302315
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
715 PM EDT TUE APR 30 2013

FLC069-095-302330-
/O.CON.KMLB.TO.W.0014.000000T0000Z-130430T2330Z/
ORANGE-LAKE-
715 PM EDT TUE APR 30 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR EAST 
CENTRAL LAKE AND NORTHWESTERN ORANGE COUNTIES...

AT 711 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED NEAR TANGERINE...OR NEAR
MOUNT DORA...MOVING SOUTHEAST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
ZELLWOOD.

A SPOTTER HAS RECENTLY REPORTED QUARTER SIZE HAIL IN MOUNT DORA.

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 2880 8165 2877 8151 2866 8170 2876 8173
TIME...MOT...LOC 2314Z 322DEG 6KT 2876 8167

$$

SEDLOCK
253 
WWUS52 KMLB 302328
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
728 PM EDT TUE APR 30 2013

FLC069-095-302338-
/O.EXP.KMLB.TO.W.0014.000000T0000Z-130430T2330Z/
ORANGE-LAKE-
728 PM EDT TUE APR 30 2013

...THE TORNADO WARNING FOR CENTRAL LAKE AND NORTHWESTERN ORANGE
COUNTIES WILL EXPIRE AT 730 PM EDT...

THE SEVERE STORM AND TORNADO THAT PROMPTED THE WARNING HAD WEAKENED 
AND NO LONGER APPEARED CAPABLE OF PRODUCING TORNADOES...THE WARNING 
HAS BEEN ALLOWED TO EXPIRE. HOWEVER...STRONG WINDS...HEAVY 
RAIN...LARGE HAIL TO QUARTER SIZE AND DANGEROUS LIGHTNING STRIKES 
WILL CONTINUE TO BE POSSIBLE. A SEVERE THUNDERSTORM WARNING WILL BE 
ISSUED SHORTLY TO COVER THIS.

LAT...LON 2880 8165 2877 8151 2866 8170 2876 8173
TIME...MOT...LOC 2328Z 322DEG 6KT 2874 8165

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 8:27 PM EDTSpecial Marine WarningMLB63 min
Apr 29, 8:41 PM EDTSpecial Weather StatementMLBSeminole49 min
Apr 29, 8:59 PM EDTSpecial Weather StatementMLBVolusia61 min
Apr 29, 9:07 PM EDTSpecial Marine WarningMLB83 min
Apr 30, 4:25 PM EDTSpecial Weather StatementMLBIndian River50 min
Apr 30, 4:32 PM EDTSevere Thunderstorm WarningMLBIndian River, Okeechobee58 min
Apr 30, 5:33 PM EDTSpecial Weather StatementMLBSeminole42 min
Apr 30, 6:14 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange46 min
Apr 30, 6:22 PM EDTSpecial Weather StatementMLBLake53 min
Apr 30, 6:41 PM EDTSpecial Weather StatementMLBOrange49 min
Apr 30, 7:05 PM EDTSpecial Weather StatementMLBOrange40 min
Apr 30, 7:16 PM EDTSevere Thunderstorm WarningMLBOrange, Seminole44 min
Apr 30, 7:29 PM EDTSevere Thunderstorm WarningMLBLake, Orange61 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.