Alert archive / Florida / Tornado Warnings in 2011
Tornado Warning 14, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at Mar 31, 2011, 10:37 AM EDT for 4 counties in Florida. It was in force for 53 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
- Mar 31, 2011, 10:37 AM EDT (14:37 UTC)
- Expired
- Mar 31, 2011, 11:30 AM EDT
- In force
- 53 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Lake County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 125 km from the middle of the area, began a volume at 14:41 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 31, 11:36 AM EDT | TSTM WND GST 52 | Leesburg, FL | KLEE ASOS MEASURED 45 KT/52 MPH WIND GUST FROM 270 DEGREES. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 31, 6:00 AM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 2.6 hours before the alert went out and 121 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
- 81 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 1243 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
833
WFUS52 KMLB 311437
TORMLB
FLC069-095-117-127-311530-
/O.NEW.KMLB.TO.W.0014.110331T1437Z-110331T1530Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1037 AM EDT THU MAR 31 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL LAKE COUNTY IN FLORIDA...
THIS INCLUDES THE CITIES OF...TAVARES...MOUNT PLYMOUTH...MOUNT
DORA...MASCOTTE...LISBON...LEESBURG...EUSTIS...CASSIA...
NORTHERN ORANGE COUNTY IN FLORIDA...
THIS INCLUDES THE CITIES OF...ZELLWOOD...WINTER PARK...WINTER
GARDEN...PINE HILLS...OCOEE...MAITLAND...LOCKHART...LAKE
APOPKA...
SEMINOLE COUNTY IN FLORIDA...
THIS INCLUDES THE CITIES OF...WINTER SPRINGS...WEKIVA SPRINGS...
SANFORD...OVIEDO...LONGWOOD...LAKE MARY...LAKE JESSUP...
WESTERN VOLUSIA COUNTY IN FLORIDA...
THIS INCLUDES THE CITIES OF...OSTEEN...ORANGE CITY...LAKE MONROE...
LAKE HELEN...DELTONA...DE LAND...DELAND...
* UNTIL 1130 AM EDT.
* AT 1031 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF
HOWEY IN THE HILLS...MOVING NORTHEAST AT 40 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WEKIWA SPRINGS STATE PARK...FERN PARK...UNION PARK...DEBARY
AND MIDWAY
THIS STORM IS CAPABLE OF PRODUCING A TORNADO AT ANY TIME. PEOPLE IN
THE PATH OF THIS STORM SHOULD ACT NOW IN ORDER TO PROTECT THEMSELVES.
DO NOT WAIT FOR THE TORNADO TO DEVELOP BEFORE ACTING...YOU MAY NOT
SEE OR HEAR ITS APPROACH. DO NOT GET CAUGHT OFF GUARD!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IT IS VERY RISKY TO REMAIN IN A MOBILE HOME DURING A TORNADO. MOBILE
HOMES OFFER LITTLE PROTECTION AGAINST TORNADO WINDS EVEN IF THEY ARE
TIED DOWN. IF YOU ARE IN THE PATH OF A TORNADO AND ARE IN A MOBILE
HOME...ABANDON IT FOR SAFE SHELTER. QUICKLY MOVE TO THE NEAREST
STURDY BUILDING AND GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR. PUT
AS MANY WALLS BETWEEN YOU AND THE TORNADO AS POSSIBLE.
&&
LAT...LON 2879 8195 2883 8195 2911 8110 2846 8099
2858 8196 2879 8196
TIME...MOT...LOC 1436Z 235DEG 35KT 2872 8182
$$
524 follow-up statements
039
WWUS52 KMLB 311451
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1051 AM EDT THU MAR 31 2011
FLC069-095-117-127-311530-
/O.CON.KMLB.TO.W.0014.000000T0000Z-110331T1530Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
1051 AM EDT THU MAR 31 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR CENTRAL
VOLUSIA...SOUTHERN LAKE...SEMINOLE AND NORTHERN ORANGE COUNTIES...
AT 1050 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED NEAR ASTATULA...OR NEAR
LITTLE LAKE HARRIS...MOVING RAPIDLY EAST AT 55 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
APOPKA...ZELLWOOD...MOUNT PLYMOUTH...MOUNT DORA...TANGERINE...WEKIVA
SPRINGS STATE PARK...LONGWOOD AND LAKE MARY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2874 8178 2881 8174 2888 8170 2911 8110
2846 8099 2857 8187
TIME...MOT...LOC 1448Z 263DEG 47KT 2869 8168
$$
52313
WWUS52 KMLB 311504
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1104 AM EDT THU MAR 31 2011
FLC069-095-117-127-311530-
/O.CON.KMLB.TO.W.0014.000000T0000Z-110331T1530Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
1104 AM EDT THU MAR 31 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR CENTRAL
VOLUSIA...NORTHEAST LAKE...SEMINOLE AND NORTHERN ORANGE COUNTIES...
AT 1103 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED NEAR LAKE APOPKA...MOVING
RAPIDLY EAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PLYMOUTH...MOUNT PLYMOUTH...APOPKA...WEKIWA SPRINGS STATE
PARK...ALTAMONTE SPRINGS...FOREST CITY...PIEMONT AND
CLARCONA.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2872 8166 2879 8164 2886 8157 2911 8110
2846 8099 2856 8166
TIME...MOT...LOC 1500Z 273DEG 36KT 2867 8157
$$
52249
WWUS52 KMLB 311521
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1121 AM EDT THU MAR 31 2011
FLC069-095-117-127-311530-
/O.CON.KMLB.TO.W.0014.000000T0000Z-110331T1530Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
1121 AM EDT THU MAR 31 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR CENTRAL
VOLUSIA...EXTREME EAST CENTRAL LAKE...SEMINOLE AND CENTRAL ORANGE
COUNTIES...
AT 1120 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED NEAR ALTAMONTE SPRINGS...
MOVING RAPIDLY EAST NEAR 60 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LONGWOOD...MAITLAND...WINTER SPRINGS...CASSELBERRY AND OVIEDO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2854 8145 2870 8152 2878 8146 2887 8146
2911 8110 2846 8099
TIME...MOT...LOC 1519Z 269DEG 51KT 2866 8135
$$
52218
WWUS52 KMLB 311531
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1131 AM EDT THU MAR 31 2011
FLC069-095-117-127-311535-
/O.EXP.KMLB.TO.W.0014.000000T0000Z-110331T1530Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
1131 AM EDT THU MAR 31 2011
...THE TORNADO WARNING FOR CENTRAL VOLUSIA...EXTREME EAST CENTRAL
LAKE...SEMINOLE AND CENTRAL ORANGE COUNTIES HAS EXPIRED...
THE SEVERE STORM THAT PROMPTED THE WARNING HAS WEAKENED...THUS THE
WARNING HAS BEEN ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.
LAT...LON 2854 8145 2870 8152 2878 8146 2887 8146
2911 8110 2846 8099
TIME...MOT...LOC 1525Z 269DEG 51KT 2866 8125
$$
GUSEMANThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 12:38 AM EDT | Special Marine Warning | MLB | 82 min | |
| Mar 31, 3:42 AM EDT | Small Craft Advisory for Winds | MLB | 24 hr | |
| Mar 31, 6:16 AM EDT | Special Weather Statement | MLB | Lake | 59 min |
| Mar 31, 6:58 AM EDT | Special Weather Statement | MLB | Brevard, Lake, Orange, Osceola, Seminole, Volusia | 62 min |
| Mar 31, 7:04 AM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Seminole, Volusia | 56 min |
| Mar 31, 7:27 AM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola | 63 min |
| Mar 31, 7:33 AM EDT | Special Marine Warning | MLB | 117 min | |
| Mar 31, 7:43 AM EDT | Tornado Warning | MLB | Brevard, Seminole, Volusia | 42 min |
| Mar 31, 8:13 AM EDT | Severe Thunderstorm Warning | MLB | Brevard, Orange, Volusia | 47 min |
| Mar 31, 8:30 AM EDT | Severe Thunderstorm Warning | MLB | Brevard, Indian River, Osceola | 27 min |
| Mar 31, 9:01 AM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola | 59 min |
| Mar 31, 10:16 AM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Seminole | 59 min |
| Mar 31, 10:38 AM EDT | Special Marine Warning | MLB | 2 hr | |
| Mar 31, 11:31 AM EDT | Special Weather Statement | MLB | Lake, Orange, Seminole, Volusia | 44 min |
| Mar 31, 11:51 AM EDT | Tornado Warning | MLB | Brevard, Seminole, Volusia | 24 min |
| Mar 31, 12:15 PM EDT | Tornado Warning | MLB | Brevard | 19 min |
| Mar 31, 12:31 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Osceola | 59 min |
| Mar 31, 12:32 PM EDT | Tornado Warning | MLB | Osceola | 43 min |
| Mar 31, 12:47 PM EDT | Special Marine Warning | MLB | 88 min | |
| Mar 31, 1:05 PM EDT | Tornado Warning | MLB | Brevard, Osceola | 23 min |
| Mar 31, 1:59 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Mar 31, 2:15 PM EDT | Special Weather Statement | MLB | Lake, Volusia | 45 min |
| Mar 31, 2:21 PM EDT | Special Marine Warning | MLB | 54 min | |
| Mar 31, 3:58 PM EDT | Special Weather Statement | MLB | Orange | 62 min |
| Mar 31, 5:52 PM EDT | Special Weather Statement | MLB | Indian River | 53 min |
| Mar 31, 5:53 PM EDT | Special Marine Warning | MLB | 112 min |
Nearby
Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011
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.