Alert archive / Florida / Tornado Warnings in 2009
Tornado Warning 12, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at May 20, 2009, 1:26 AM EDT for Lake County, Seminole County, Volusia County, Florida. It was in force for 34 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, 1:26 AM EDT (05:26 UTC)
- Expired
- May 20, 2009, 2:00 AM EDT
- In force
- 34 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Lake County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 112 km from the middle of the area, began a volume at 05:27 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 00:00Z, 5.4 hours before the alert went out and 99 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
- 597 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 509 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KMLB 200526 TORMLB FLC069-117-127-200600- /O.NEW.KMLB.TO.W.0012.090520T0526Z-090520T0600Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 126 AM EDT WED MAY 20 2009 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL LAKE COUNTY IN FLORIDA... THIS INCLUDES THE CITY OF CASSIA... NORTHWESTERN SEMINOLE COUNTY IN FLORIDA... THIS INCLUDES AREAS AROUND SANFORD... SOUTH CENTRAL VOLUSIA COUNTY IN FLORIDA... THIS INCLUDES THE CITIES OF...OSTEEN...ORANGE CITY...LAKE MONROE... DELTONA... * UNTIL 200 AM EDT. * AT 125 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR OSTEEN... MOVING WEST AT 35 MPH. * THE TORNADO WILL BE NEAR... DELTONA BY 130 AM EDT... LAKE MONROE AND ORANGE CITY BY 135 AM EDT... DE BARY BY 140 AM EDT... CASSIA BY 155 AM EDT... TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO NOT GET CAUGHT OFFGUARD PRECAUTIONARY/PREPAREDNESS ACTIONS... TORNADOES AT NIGHT ARE DIFFICULT TO SEE. WATCH FOR THE POPPING OF ELECTRIC LINES AND TRANSFORMERS OR LISTEN FOR THE SOUND OF LOUD RUMBLING AS THAT OF AN APPROACHING FREIGHT TRAIN. && LAT...LON 2881 8156 2906 8153 2895 8116 2880 8115 TIME...MOT...LOC 0525Z 098DEG 31KT 2887 8118 $$ 52
3 follow-up statements
000 WWUS52 KMLB 200537 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 137 AM EDT WED MAY 20 2009 FLC069-117-127-200600- /O.CON.KMLB.TO.W.0012.000000T0000Z-090520T0600Z/ SEMINOLE-LAKE-VOLUSIA- 137 AM EDT WED MAY 20 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM EDT FOR SOUTH CENTRAL VOLUSIA...EAST CENTRAL LAKE AND NORTHWESTERN SEMINOLE COUNTIES... AT 137 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR DE BARY...OR NEAR LAKE MONROE...MOVING WEST AT 35 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ORANGE CITY...HIGH BANKS...BLUE SPRING STATE PARK...HONTOON ISLAND STATE PARK...FOREST HILLS...CASSIA... FULLERVILLE AND LAKE KATHRYN HEIGHTS PRECAUTIONARY/PREPAREDNESS ACTIONS... IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 2881 8156 2906 8153 2895 8116 2880 8115 TIME...MOT...LOC 0536Z 098DEG 31KT 2888 8129 $$ 52
000 WWUS52 KMLB 200544 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 144 AM EDT WED MAY 20 2009 FLC069-117-127-200600- /O.CON.KMLB.TO.W.0012.000000T0000Z-090520T0600Z/ SEMINOLE-LAKE-VOLUSIA- 144 AM EDT WED MAY 20 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM EDT FOR SOUTH CENTRAL VOLUSIA...EAST CENTRAL LAKE AND NORTHWESTERN SEMINOLE COUNTIES... AT 142 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS MOVING INTO NORTHEAST LAKE COUNTY NEAR HONTOON ISLAND...MOVING WEST AT 35 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HONTOON ISLAND STATE PARK...FOREST HILLS...CASSIA...FULLERVILLE...LAKE KATHRYN HEIGHTS AND PAISLEY. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 2881 8156 2906 8153 2895 8116 2880 8115 TIME...MOT...LOC 0542Z 098DEG 31KT 2889 8135 $$ 52
000 WWUS52 KMLB 200601 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 201 AM EDT WED MAY 20 2009 FLC069-117-127-200611- /O.EXP.KMLB.TO.W.0012.000000T0000Z-090520T0600Z/ SEMINOLE-LAKE-VOLUSIA- 201 AM EDT WED MAY 20 2009 ...THE TORNADO WARNING FOR SOUTH CENTRAL VOLUSIA...EAST CENTRAL LAKE AND NORTHWESTERN SEMINOLE COUNTIES HAS EXPIRED... LAT...LON 2881 8156 2906 8153 2895 8116 2880 8115 TIME...MOT...LOC 0544Z 098DEG 31KT 2889 8137 $$ 52
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, 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, 5:49 PM EDT | Tornado Warning | MLB | Indian River, Okeechobee, Saint Lucie | 41 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.