Alert archive / Florida / Tornado Warnings in 2009

Tornado Warning 4, NWS Melbourne, FL

April 14, 2009Lake County, Orange County, Florida

NWS Melbourne, FL issued this tornado warning at Apr 14, 2009, 9:17 AM EDT for Lake County, Orange County, Florida. It was in force for 43 min. 1 report 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, 2009, 9:17 AM EDT (13:17 UTC)
Expired
Apr 14, 2009, 10:00 AM EDT
In force
43 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Lake County, FL, Orange County, FL

The radar

The Melbourne radar (KMLB), 112 km from the middle of the area, began a volume at 13:19 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, 9:35 AM EDTTSTM WND DMG5 Sw Eustis, FLLAKE COUNTY NEWSPAPER REPORTED A ROOF RIPPED OFF A MARINA AT LAKE DORA. TIME ESTIMATED FROM RADAR.

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, 6:15 AM EDTTornado WatchSPC6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 1.3 hours before the alert went out and 112 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 2009-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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 2009-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
101 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
1049 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
155 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.

000 
WFUS52 KMLB 141317
TORMLB
FLC069-095-141400-
/O.NEW.KMLB.TO.W.0004.090414T1317Z-090414T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
917 AM EDT TUE APR 14 2009

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  LAKE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...TAVARES...PAISLEY...MOUNT PLYMOUTH...
  MOUNT DORA...MASCOTTE...LISBON...LEESBURG...LAKE HARRIS...LAKE
  GRIFFIN...HOWEY IN THE HILLS...GROVELAND...FERNDALE...EUSTIS...
  CASSIA...
  WESTERN ORANGE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...HOLLYWOOD STUDIOS...ZELLWOOD...WINTER
  GARDEN...WINDERMERE...PINE HILLS...OCOEE...MGM STUDIOS...MAGIC
  KINGDOM...LAKE APOPKA...EPCOT...APOPKA...

* UNTIL 1000 AM EDT.

* AT 907 AM EDT...A SQUALL LINE WITH DAMAGING WINDS AND EMBEDDED 
TORNDADOES WAS DETECTED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 
ABOUT 30 MILES WEST OF LAKE COUNTY. THIS SQUALL LINE WILL MOVE INTO 
LAKE COUNTY BY 925 AM. A TORNADO WAS REPORTED IN PASCO COUNTY WITH 
THIS LINE OF STORMS. THIS STORM WITH THE REPORTED TORNADO WILL TRACK 
INTO EXTREME SOUTHERN PORTIONS OF LAKE COUNTY. ANOTHER DEVELOPING 
AREA OF ROTATION IN THE LINE MAY DEVLOP A TORNADO ACROSS NORTHERN 
PORTIONS OF LAKE COUNTY BETWEEN 925 AM AND 945 AM.  

* THE TORNADO WILL BE NEAR...
  20 MILES SOUTH OF GROVELAND BY 925 AM.

REPEATING...A TORNADO HAS BEEN SIGHTED IN PASCO COUNTY PEOPLE IN THE
PATH OF THIS TORNADO MUST ACT NOW TO PROTECT THEIR LIVES TAKE COVER 
NOW

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.

THE TORNADO WILL LIKELY BE WRAPPED IN HEAVY RAIN MAKING IT DIFFICULT 
TO SEE. BE SMART AND REACT NOW

&&

LAT...LON 2885 8195 2904 8142 2903 8140 2902 8139
      2871 8143 2870 8145 2864 8145 2864 8144
      2862 8144 2835 8149 2834 8179 2835 8180
      2835 8185 2834 8186 2834 8195
TIME...MOT...LOC 1309Z 180DEG 0KT 2852 8185

$$

MRV
2 follow-up statements
000 
WWUS52 KMLB 141326
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
926 AM EDT TUE APR 14 2009

FLC069-095-141400-
/O.CON.KMLB.TO.W.0004.000000T0000Z-090414T1400Z/
ORANGE-LAKE-
926 AM EDT TUE APR 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR LAKE AND
WESTERN ORANGE COUNTIES...

AT 921 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG ROTATION AND A DEVELOPING TORNADO 10 MILES SOUTHWEST 
OKAHUMPKA. 

THIS STORM WITH A DEVELOPING TORNADO WILL MOVE ACROSS OKAHUMPKA 
...LAKE HARRIS...TAVARES...LAKE EUSTIS.

IF YOU ARE IN THIS AREAS...TAKE COVER NOW TAKE COVER NOW


THE TORNADO WILL BE NEAR...
  OKAHUMPKA NOW...
  LAKE HARRIS 930 AM...
  TAVARES 940 AM...
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 PM EDT TUESDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.

&&

LAT...LON 2885 8195 2904 8142 2903 8140 2902 8139
      2871 8143 2870 8145 2864 8145 2864 8144
      2862 8144 2835 8149 2834 8179 2835 8180
      2835 8185 2834 8186 2834 8195
TIME...MOT...LOC 1322Z 180DEG 0KT 2852 8185

$$


15
000 
WWUS52 KMLB 141342
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
942 AM EDT TUE APR 14 2009

FLC069-095-141400-
/O.CON.KMLB.TO.W.0004.000000T0000Z-090414T1400Z/
ORANGE-LAKE-
942 AM EDT TUE APR 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR LAKE AND
WESTERN ORANGE COUNTIES...

AT 937 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS THUNDERSTORM WAS LOCATED 15 MILES SOUTH OF 
CLERMONT AND WAS MOVING EAST NORTHEAST AT 40 MPH.

ANOTHER THUNDERSTORM ALONG THE LINE WAS SHOWING SIGNIFICANT ROTATION 
NEAR LAKE DORA. THIS STORM WILL MOVE TOWARD MOUNT DORA AND TOWARD 
STATE ROUTE 44. IF YOU ARE IN THESE AREAS MOVE INDOORS INTO A STURDY 
STRUCTURE.

THE TORNADO WILL BE NEAR...
  KILLARNY 950 AM.
  WINTER GARDEN 955 AM.
  WINDERMERE 955 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 PM EDT TUESDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.

&&

LAT...LON 2885 8195 2904 8142 2903 8140 2902 8139
      2871 8143 2870 8145 2864 8145 2864 8144
      2862 8144 2835 8149 2834 8179 2835 8180
      2835 8185 2834 8186 2834 8195
TIME...MOT...LOC 1337Z 180DEG 0KT 2852 8185

$$


15

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 11:17 PM EDTSpecial Marine WarningMLB118 min
Apr 13, 11:27 PM EDTSevere Thunderstorm WarningMLBVolusia23 min
Apr 14, 3:47 AM EDTWind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia16 hr
Apr 14, 5:25 AM EDTSevere Thunderstorm WarningMLBLake32 min
Apr 14, 9:51 AM EDTSevere Thunderstorm WarningMLBLake, Orange, Osceola, Seminole, Volusia54 min
Apr 14, 10:15 AM EDTSpecial Marine WarningMLB2 hr
Apr 14, 10:24 AM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Osceola, Seminole, Volusia51 min
Apr 14, 10:29 AM EDTTornado WarningMLBOrange31 min
Apr 14, 10:53 AM EDTTornado WarningMLBBrevard37 min
Apr 14, 11:07 AM EDTTornado WarningMLBBrevard24 min
Apr 14, 12:27 PM EDTSpecial Marine WarningMLB63 min
Apr 14, 1:30 PM EDTSevere Thunderstorm WarningMLBOkeechobee, Saint Lucie45 min
Apr 14, 1:32 PM EDTTornado WarningMLBOkeechobee, Saint Lucie43 min
Apr 14, 1:50 PM EDTSpecial Marine WarningMLB43 min
Apr 14, 2:13 PM EDTTornado WarningMLBSaint Lucie13 min
Apr 14, 2:45 PM EDTFire Weather WatchMLBLake, Orange, Osceola, Seminole, Volusia13 hr

Nearby

Tornado Warnings in Florida, 2009Every tornado warning in 2009Tornadoes in 2009

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.