Alert archive / Florida / Tornado Warnings in 2009

Tornado Warning 17, NWS Melbourne, FL

May 22, 2009Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at May 22, 2009, 1:45 PM EDT for Osceola County, Florida. It was in force for 33 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
May 22, 2009, 1:45 PM EDT (17:45 UTC)
Expired
May 22, 2009, 2:18 PM EDT
In force
33 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 47 km from the middle of the area, began a volume at 17:44 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 nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 5.8 hours before the alert went out and 76 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 2009-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1025 joules per kilogram.LCLEL10008507005003002001001 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 2009-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
1025 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
57 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 221745
TORMLB
FLC097-221830-
/O.NEW.KMLB.TO.W.0017.090522T1745Z-090522T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
145 PM EDT FRI MAY 22 2009

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL OSCEOLA COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...LAKE MARIAN...HOLOPAW...

* UNTIL 230 PM EDT.

* AT 143 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES   
SOUTHWEST OF LAKE MARIAN. THIS TORNADO WAS MOVING NORTH AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FOREVER FLORIDA...REPTILE WORLD...PINE GROVE AND ALLIGATOR LAKE

THE IMMEDIATE DANGER OF A TORNADO IS HIGH. PEOPLE IN THE PATH OF THIS
DEVELOPING TORNADO ARE URGED TO QUICKLY PREPARE FOR ITS APPROACH. 
THIS IS A DANGEROUS SITUATION

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.

&&

LAT...LON 2827 8128 2826 8091 2778 8106 2778 8113
TIME...MOT...LOC 1745Z 180DEG 0KT 2770 8084

$$


15
3 follow-up statements
000 
WWUS52 KMLB 221753
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
153 PM EDT FRI MAY 22 2009

FLC097-221830-
/O.CON.KMLB.TO.W.0017.000000T0000Z-090522T1830Z/
OSCEOLA-
153 PM EDT FRI MAY 22 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR CENTRAL
OSCEOLA COUNTY...

AT 152 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES NORTH OF LAKE 
MARIAN. THIS TORNADO WAS MOVING NORTH AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARMONY...FOREVER FLORIDA...REPTILE WORLD...PINE GROVE...HOLOPAW AND 
ALLIGATOR LAKE.

THIS TORNADO WILL APPROACH THE FLORIDA TURNPIKE IN CENTRAL OSCEOLA 
COUNTY AROUND 155 PM.

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 2827 8128 2826 8091 2778 8106 2778 8113
TIME...MOT...LOC 1752Z 180DEG 0KT 2770 8084

$$


15
000 
WWUS52 KMLB 221806
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
206 PM EDT FRI MAY 22 2009

FLC097-221830-
/O.CON.KMLB.TO.W.0017.000000T0000Z-090522T1830Z/
OSCEOLA-
206 PM EDT FRI MAY 22 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR CENTRAL
OSCEOLA COUNTY...

AT 203 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THE TORNADO WAS LOCATED 6 MILES WEST OF FOREVER 
FLORIDA AND WAS MOVING NORTH AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
HOLOPAW...AND HARMONY. IF YOU ARE IN THESE AREAS TAKE COVER NOW.

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 2827 8128 2826 8091 2778 8106 2778 8113
TIME...MOT...LOC 1804Z 180DEG 0KT 2770 8084

$$


15
000 
WWUS52 KMLB 221818
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
218 PM EDT FRI MAY 22 2009

FLC097-221828-
/O.CAN.KMLB.TO.W.0017.000000T0000Z-090522T1830Z/
OSCEOLA-
218 PM EDT FRI MAY 22 2009

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

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM
THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER CAPABLE OF 
PRODUCING A TORNADO. AS A RESULT...THE WARNING HAS BEEN CANCELLED. 
HOWEVER...HEAVY RAIN AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE 
TO BE POSSIBLE.

LAT...LON 2827 8128 2826 8091 2778 8106 2778 8113
TIME...MOT...LOC 1818Z 180DEG 0KT 2770 8084

$$


15

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 4:44 AM EDTSmall Craft Advisory for Hazardous SeasMLB53 hr
May 22, 6:22 AM EDTAreal Flood WarningMLBVolusia52 hr
May 22, 8:07 AM EDTFlash Flood WarningMLBVolusia3 hr
May 22, 9:11 AM EDTSpecial Marine WarningMLB79 min
May 22, 11:41 AM EDTSpecial Marine WarningMLB94 min
May 22, 1:57 PM EDTSpecial Marine WarningMLB63 min
May 22, 2:58 PM EDTAreal Flood AdvisoryMLBBrevard, Lake, Orange, Osceola, Seminole, Volusia92 min
May 22, 3:12 PM EDTAreal Flood WarningMLBOrange78 min
May 22, 4:01 PM EDTFlash Flood WarningMLBVolusia119 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.