Alert archive / Florida / Tornado Warnings in 2009
Tornado Warning 14, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at May 20, 2009, 5:49 PM EDT for Indian River County, Okeechobee County, Saint Lucie County, Florida. It was in force for 41 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 20, 2009, 5:49 PM EDT (21:49 UTC)
- Expired
- May 20, 2009, 6:30 PM EDT
- In force
- 41 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Indian River County, FL, Okeechobee County, FL, Saint Lucie County, FL
The radar
The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 21:52 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
Tampa Bay, FL (KTBW), launched 12:00Z, 9.8 hours before the alert went out and 176 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.
- Mixed-layer CAPE
- 538 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KMLB 202149 TORMLB FLC061-093-111-202230- /O.NEW.KMLB.TO.W.0014.090520T2149Z-090520T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 549 PM EDT WED MAY 20 2009 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL INDIAN RIVER COUNTY IN FLORIDA... EAST CENTRAL OKEECHOBEE COUNTY IN FLORIDA... THIS INCLUDES THE CITY OF FORT DRUM... NORTHERN ST. LUCIE COUNTY IN FLORIDA... * UNTIL 630 PM EDT. * AT 548 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 24 MILES EAST OF FORT DRUM...OR 6 MILES NORTHWEST OF WHITE CITY...MOVING NORTHWEST AT 25 MPH. * THE TORNADO WILL BE NEAR... RURAL NORTHERN ST. LUCIE COUNTY AT 600 PM EDT RURAL NORTHWESTERN ST. LUCIE COUNTY AT 620 PM EDT RURAL SOUTHERN INDIAN RIVER COUNTY AT 630 PM EDT PRECAUTIONARY/PREPAREDNESS ACTIONS... IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. 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. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. ABANDON YOUR VEHICLE IF THE TORNADO IS NEARBY. && LAT...LON 2751 8084 2772 8070 2746 8035 2737 8042 TIME...MOT...LOC 2148Z 121DEG 20KT 2743 8042 $$ KELLY
2 follow-up statements
000 WWUS52 KMLB 202221 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 621 PM EDT WED MAY 20 2009 FLC061-202230- /O.CAN.KMLB.TO.W.0014.000000T0000Z-090520T2230Z/ INDIAN RIVER- 621 PM EDT WED MAY 20 2009 ...THE TORNADO WARNING FOR SOUTH CENTRAL INDIAN RIVER COUNTY IS CANCELLED... LAT...LON 2740 8050 2751 8084 2756 8067 2750 8047 TIME...MOT...LOC 2220Z 116DEG 16KT 2748 8056 $$ FLC093-111-202230- /O.CON.KMLB.TO.W.0014.000000T0000Z-090520T2230Z/ OKEECHOBEE-ST. LUCIE- 621 PM EDT WED MAY 20 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR NORTHWESTERN ST. LUCIE AND EAST CENTRAL OKEECHOBEE COUNTIES... AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED OVER NORTH CENTRAL ST. LUCIE COUNTY...OR 13 MILES SOUTHWEST OF VERO BEACH SOUTH...MOVING NORTHWEST AT 20 MPH. THE TORNADO WILL BE OVER... RURAL NORTHWESTERN ST. LUCIE COUNTY THROUGH 630 PM EDT LAT...LON 2740 8050 2751 8084 2756 8067 2750 8047 TIME...MOT...LOC 2220Z 116DEG 16KT 2748 8056 $$ KELLY
000 WWUS52 KMLB 202232 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 632 PM EDT WED MAY 20 2009 FLC093-111-202241- /O.EXP.KMLB.TO.W.0014.000000T0000Z-090520T2230Z/ OKEECHOBEE-ST. LUCIE- 632 PM EDT WED MAY 20 2009 ...THE TORNADO WARNING FOR NORTHWESTERN ST. LUCIE AND EAST CENTRAL OKEECHOBEE COUNTIES HAS EXPIRED... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM AND TORNADO THAT PROMPTED THE WARNING HAD WEAKENED AND NO LONGER APPEARED CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE WEATHER...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER...HEAVY RAIN GUSTY WINDS AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE OVER WESTERN SAINT LUCIE COUNTY THROUGH 7 PM. THESE STORMS WILL BE MOVING INTO OKEECHOBEE COUNTY. RESIDENTS SHOULD REMAIN ALERT FOR POSSIBLE WARNINGS. LAT...LON 2740 8050 2751 8084 2756 8067 2750 8047 TIME...MOT...LOC 2221Z 116DEG 16KT 2748 8057 $$ KELLY
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 8:05 PM EDT | Areal Flood Advisory | MLB | Brevard | 3 hr |
| May 19, 9:57 PM EDT | Gale Warning | MLB | 12 hr | |
| May 19, 10:30 PM EDT | Areal Flood Warning | MLB | Volusia | 3 hr |
| May 19, 10:52 PM EDT | Special Marine Warning | MLB | 113 min | |
| May 19, 11:35 PM EDT | Tornado Warning | MLB | Lake, Orange, Seminole | 25 min |
| May 20, 12:05 AM EDT | Tornado Warning | MLB | Brevard, Seminole, Volusia | 25 min |
| May 20, 12:40 AM EDT | Special Marine Warning | MLB | 110 min | |
| May 20, 1:11 AM EDT | Areal Flood Advisory | MLB | Brevard, Seminole, Volusia | 2 hr |
| May 20, 1:26 AM EDT | Tornado Warning | MLB | Lake, Seminole, Volusia | 34 min |
| May 20, 2:15 AM EDT | Areal Flood Advisory | MLB | Volusia | 2 hr |
| May 20, 2:32 AM EDT | Special Marine Warning | MLB | 118 min | |
| May 20, 3:17 AM EDT | Areal Flood Advisory | MLB | Brevard, Seminole, Volusia | 118 min |
| May 20, 4:40 AM EDT | Areal Flood Advisory | MLB | Volusia | 110 min |
| May 20, 7:29 AM EDT | Special Marine Warning | MLB | 61 min | |
| May 20, 8:41 AM EDT | Special Marine Warning | MLB | 49 min | |
| May 20, 10:11 AM EDT | Areal Flood Warning | MLB | Volusia | 6 hr |
| May 20, 11:00 AM EDT | Lake Wind Advisory | MLB | Orange, Seminole, Volusia | 9 hr |
| May 20, 11:54 AM EDT | Coastal Flood Advisory | MLB | Volusia | 56 hr |
| May 20, 1:43 PM EDT | High Surf Advisory | MLB | Volusia | 54 hr |
| May 20, 2:04 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee | 38 min |
| May 20, 2:41 PM EDT | Tornado Warning | MLB | Orange | 34 min |
| May 20, 4:13 PM EDT | Areal Flood Warning | MLB | Volusia | 26 hr |
| May 20, 5:40 PM EDT | Severe Thunderstorm Warning | MLB | Indian River | 28 min |
| May 20, 6:25 PM EDT | Areal Flood Advisory | MLB | Brevard | 110 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.