Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 1, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jan 25, 2011, 4:32 PM EST for 4 counties in Florida. It was in force for 58 min. 4 reports 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
- Jan 25, 2011, 4:32 PM EST (21:32 UTC)
- Expired
- Jan 25, 2011, 5:30 PM EST
- In force
- 58 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), 131 km from the middle of the area, began a volume at 21:35 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 |
|---|---|---|---|
| Jan 25, 5:18 PM EST | TSTM WND GST 40 | Leesburg, FL | LEESBURG AIRPORT ASOS PEAK WIND 28036/2218 |
| Jan 25, 5:20 PM EST | TSTM WND DMG | 1 Wnw Groveland, FL | ESTIMATED 60-70 MPH STRAIGHT LINE WINDS. AREA OF SPORADIC WIND DAMAGE APPROXIMATELY 1.5 MILES IN LENGTH. SEVERAL HOMES WITH STRUCTURAL DAMAGE DUE TO FALLEN TREES. ONE HOME WITH A TIN ROOF PEELED OFF. OCCURRED APPROXIMATELY FROM 520 PM TO 525 PM. |
| Jan 25, 5:21 PM EST | TSTM WND DMG | Groveland, FL | INTERSECTION OF SR 19/50 TREES DOWN ON 12 TO 20 HOMES. REPORT FROM LAKE COUNTY EM. |
| Jan 25, 5:40 PM EST | TSTM WND DMG | Apopka, FL | TREES DOWN LINDEN DRIVE. EAST OF SR436 AND NORTH OF SR408. |
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 |
|---|---|---|---|
| Jan 25, 2:07 PM EST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 9.5 hours before the alert went out and 125 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1132 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 288 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
102
WUUS52 KMLB 252132
SVRMLB
FLC069-095-117-127-252230-
/O.NEW.KMLB.SV.W.0001.110125T2132Z-110125T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
432 PM EST TUE JAN 25 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
LAKE COUNTY IN FLORIDA
WESTERN ORANGE COUNTY IN FLORIDA
WESTERN SEMINOLE COUNTY IN FLORIDA
NORTHWESTERN VOLUSIA COUNTY IN FLORIDA
* UNTIL 530 PM EST.
* AT 421 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH ADN QUARTER SIZED HAIL.
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 25 MILES WEST
OF THE VILLAGES TO 40 MILES WEST OF MASCOTTE...MOVING TOWARD THE
EAST-NORTHEAST AT 45 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
LADY LAKE...LEESBURG...TAVARES...ZELLWOOD...WINTER PARK...WINTER
GARDEN...WINDERMERE...THE ATTACTIONS AREA...AND APOPKA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR EAST CENTRAL FLORIDA. SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. IF A TORNADO IS
SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
&&
LAT...LON 2896 8196 2896 8166 2929 8165 2932 8168
2940 8141 2834 8132 2834 8179 2835 8180
2834 8195
TIME...MOT...LOC 2128Z 252DEG 39KT 2900 8230 2885 8228
2872 8234 2864 8244 2855 8252 2846 8247
2830 8259
$$3 follow-up statements
284
WWUS52 KMLB 252159
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
459 PM EST TUE JAN 25 2011
FLC069-095-117-127-252230-
/O.CON.KMLB.SV.W.0001.000000T0000Z-110125T2230Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
459 PM EST TUE JAN 25 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EST
FOR NORTHWESTERN VOLUSIA...LAKE...WESTERN SEMINOLE AND WESTERN ORANGE
COUNTIES...
AT 454 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 10 MILES NORTH OF THE
VILLAGES TO 20 MILES WEST OF MASCOTTE TO 17 MILES WEST OF MASCOTTE
TO 27 MILES SOUTHWEST OF MASCOTTE...MOVING EAST-NORTHEAST AT 45 MPH.
THIS LINE WILL PIUSH THROUGH ALL OF LAKE COUNTY AND INTO NORTHWEST
VOLUSIA...AND WESTERN ORANGE AND SEMINOLE COUNTIES THROUGH 530 PM.
SOME EMBEDDED CELLS WITHIN THIS LINE WERE SHOWING OCCASIONAL ROTATION
...AND RESIDENTS IN THE WARNING AREA SHOULD BE PREPARED IN THE EVENT
A TORNADO WARNING IS ISSUED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
THIS IS A DANGEROUS LINE OF STORMS. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2896 8196 2896 8166 2929 8165 2932 8168
2940 8141 2834 8132 2834 8179 2835 8180
2834 8195
TIME...MOT...LOC 2155Z 252DEG 39KT 2909 8198 2894 8196
2881 8202 2873 8212 2864 8220 2855 8215
2839 8227
$$553
WWUS52 KMLB 252208
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
508 PM EST TUE JAN 25 2011
FLC069-095-117-127-252230-
/O.CON.KMLB.SV.W.0001.000000T0000Z-110125T2230Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
508 PM EST TUE JAN 25 2011
...SEVERE STORM MOVING TOWARD ASTOR PARK AND LAKE GEORGE...
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EST
FOR NORTHWESTERN VOLUSIA...LAKE...WESTERN SEMINOLE AND WESTERN ORANGE
COUNTIES...
AT 506 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES
WEST OF ALTOONA...OR 6 MILES SOUTHWEST OF JUNIPER SPRINGS... MOVING
NORTHEAST AT 45 MPH TOWARD ASTOR AND LAKE GEORGE.
THE HIGHEST THREAT FOR SEVERE STORMS ASSOCIATED WITH THE MAIN LINE
OF STORMS...WILL CONTINUES TO PUSH INTO THE WESTERN PART OF LAKE
COUNTY...WITH ISOLATED STORMS FORMING OUT AHEAD OF THE MAIN LINE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR EAST CENTRAL FLORIDA. SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. IF A TORNADO IS
SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
&&
LAT...LON 2896 8196 2896 8166 2929 8165 2932 8168
2940 8141 2834 8132 2834 8179 2835 8180
2834 8195
TIME...MOT...LOC 2205Z 220DEG 38KT 2912 8177
$$743
WWUS52 KMLB 252224
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
524 PM EST TUE JAN 25 2011
FLC069-095-117-127-252230-
/O.CON.KMLB.SV.W.0001.000000T0000Z-110125T2230Z/
ORANGE-SEMINOLE-LAKE-VOLUSIA-
524 PM EST TUE JAN 25 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EST
FOR NORTHWESTERN VOLUSIA...LAKE...WESTERN SEMINOLE AND WESTERN ORANGE
COUNTIES...
AT 518 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM LAKE GEORGE TO EMERALDA
TO 7 MILES SOUTH OF MASCOTTE...MOVING EAST-NORTHEAST AT 45 MPH.
STRONGEST WINDS...NEAR 60 MPH...INDICATED BY RADAR WERE OCCURRING
CENTRAL AND SOUTHERN LAKE COUNTY FROM LAKE HARRIS TO MASCOTTE AND
CELRMONT. THIS AREA WILL PUSH INTO ORANGE COUNTY FROM PLYMOUTH AND
APOPKA SOUTH TO WINTER GARDEN AND THE ATTRACTIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
NATIONAL WEATHER SERVICE METEOROLOGISTS ALSO DETECTED WEAK ROTATION
WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL
DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY IN A STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2896 8196 2896 8166 2929 8165 2932 8168
2940 8141 2834 8132 2834 8179 2835 8180
2834 8195
TIME...MOT...LOC 2220Z 244DEG 48KT 2927 8164 2911 8163
2899 8176 2885 8182 2849 8189
$$The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 25, 4:03 AM EST | Lake Wind Advisory | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 14 hr |
| Jan 25, 4:24 PM EST | Special Weather Statement | MLB | Lake | 36 min |
| Jan 25, 5:28 PM EST | Tornado Warning | MLB | Lake, Orange, Volusia | 37 min |
| Jan 25, 5:30 PM EST | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola, Seminole, Volusia | 60 min |
| Jan 25, 5:55 PM EST | Tornado Warning | MLB | Lake, Orange, Seminole, Volusia | 36 min |
| Jan 25, 6:08 PM EST | Tornado Warning | MLB | Okeechobee, Osceola | 52 min |
| Jan 25, 6:20 PM EST | Special Marine Warning | MLB | 115 min | |
| Jan 25, 6:21 PM EST | Tornado Warning | MLB | Brevard, Orange, Seminole, Volusia | 54 min |
| Jan 25, 6:29 PM EST | Tornado Warning | MLB | Brevard, Orange, Osceola | 61 min |
| Jan 25, 6:55 PM EST | Special Marine Warning | MLB | 110 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2011Every severe thunderstorm warning 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.