Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 16, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 31, 2011, 12:31 PM EDT for Brevard County, Osceola County, Florida. It was in force for 59 min. 5 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
- Mar 31, 2011, 12:31 PM EDT (16:31 UTC)
- Expired
- Mar 31, 2011, 1:30 PM EDT
- In force
- 59 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Brevard County, FL, Osceola County, FL
The radar
The Melbourne radar (KMLB), 23 km from the middle of the area, began a volume at 16:33 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, 1:15 PM EDT | TSTM WND DMG | Palm Bay, FL | POWER LINES DOWN. EXACT LOCATION UNKNOWN. TIME ESTIMATED BY RADAR. |
| Mar 31, 1:20 PM EDT | TSTM WND GST 40 | 6 Sw Indialantic, FL | WXFLOW STN XDAI 24920G35 KTS |
| Mar 31, 1:27 PM EDT | TSTM WND GST 39 | 3 Wnw Palm Bay, FL | WEATHERUNDERGROUND STN WU31 333/34 KTS |
| Mar 31, 1:30 PM EDT | TSTM WND GST 39 | 7 W Barefoot Bay, FL | APRS STN AR488 24618G34 KTS |
| Mar 31, 1:31 PM EDT | TSTM WND GST 49 | 5 Wnw Malabar, FL | APRS STN CW279 28917G43 KTS |
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, 4.5 hours before the alert went out and 55 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.
501
WUUS52 KMLB 311631
SVRMLB
FLC009-097-311730-
/O.NEW.KMLB.SV.W.0016.110331T1631Z-110331T1730Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1231 PM EDT THU MAR 31 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BREVARD COUNTY IN FLORIDA
OSCEOLA COUNTY IN FLORIDA
* UNTIL 130 PM EDT.
* AT 1225 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 13
MILES SOUTH OF POINCIANA PLACE...OR 6 MILES NORTHEAST OF LAKE
WALES...AND MOVING EAST AT 65 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
POINCIANA...WEST LAKE TOHO...LAKE KISSIMMEE...SAINT CLOUD...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM PRODUCED 74 MPH GUSTS AS IT MOVED THROUGH WINTER HAVEN
AND WIND DAMAGE AT LAKELAND AIRPORT. THIS IS A DANGEROUS STORM!
TAKE COVER INDOORS IMMEDIATELY!
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 100 PM EDT THURSDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2794 8052 2786 8049 2779 8120 2806 8145
2802 8138 2807 8135 2808 8145 2814 8152
2819 8152 2836 8072 2834 8072 2838 8066
2823 8063 2834 8064 2839 8059 2820 8059
2799 8050 2790 8048
TIME...MOT...LOC 1630Z 261DEG 58KT 2799 8146
$$
523 follow-up statements
461
WWUS52 KMLB 311655 RRA
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1255 PM EDT THU MAR 31 2011
FLC009-097-311730-
/O.CON.KMLB.SV.W.0016.000000T0000Z-110331T1730Z/
OSCEOLA-BREVARD-
1255 PM EDT THU MAR 31 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHERN BREVARD AND OSCEOLA COUNTIES...
AT 1247 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS
LOCATED 7 MILES WEST OF FOREVER FLORIDA...OR 9 MILES SOUTHWEST OF
HOLOPAW...MOVING EAST AT 65 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
KENANSVILLE...DEER PARK...CAMP HOLLY FISH
CAMP...ROCKLEDGE...VIERA...PALM BAY...MERRITT
ISLAND...MELBOURNE...MALABAR...INDIAN HARBOUR BEACH...SATELLITE
BEACH...PATRICK AIRFORCE BASE...INDIALANTIC...VALKARIA...COCOA
BEACH...MELBOURNE BEACH...BAREFOOT BAY...GRANT...MICCO... AND
FLORIDANA BEACH...US 441..US 192...AND INTERSTATE 95 BETWEEN MILE
MARKERS 165 AND 195.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
THIS STORM PRODUCED 74 MPH GUSTS IN WINTER HAVEN...WIND DAMAGE AT
LAKELAND AIRPORT AND CYPRESS GARDENS AS IT MOVED THROUGH. THIS IS A
DANGEROUS STORM! TAKE COVER INDOORS IMMEDIATELY!SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT THURSDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2794 8052 2786 8049 2779 8120 2806 8145
2802 8138 2807 8135 2808 8145 2814 8152
2819 8152 2836 8072 2834 8072 2838 8066
2823 8063 2834 8064 2839 8059 2820 8059
2799 8050 2790 8048
TIME...MOT...LOC 1652Z 261DEG 58KT 2804 8106
$$
MOSES021
WWUS52 KMLB 311713
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
113 PM EDT THU MAR 31 2011
FLC009-097-311730-
/O.CON.KMLB.SV.W.0016.000000T0000Z-110331T1730Z/
OSCEOLA-BREVARD-
113 PM EDT THU MAR 31 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHERN BREVARD AND EASTERN OSCEOLA COUNTIES...
AT 110 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS
LOCATED NEAR CAMP HOLLY FISH CAMP...MOVING EAST AT 70 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MERRITT ISLAND...MELBOURNE...MALABAR...INDIAN HARBOUR
BEACH...SATELLITE BEACH...PATRICK AIRFORCE...INTERSTATE
95...BASE...VALKARIA...INDIALANTIC...MELBOURNE BEACH...BAREFOOT
BAY...MICCO...GRANT...COCOA BEACH...AND FLORIDANA BEACH
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 STORM PRODUCED 74 MPH GUSTS IN WINTER HAVEN...WIND DAMAGE AT
LAKELAND AIRPORT AND CYPRESS GARDENS AS IT MOVED THROUGH. THIS IS A
DANGEROUS STORM! TAKE COVER INDOORS IMMEDIATELY!SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 2794 8052 2786 8049 2779 8120 2813 8124
2823 8126 2836 8072 2834 8072 2838 8066
2823 8063 2834 8064 2839 8059 2820 8059
2799 8050 2790 8048
TIME...MOT...LOC 1712Z 260DEG 59KT 2810 8069
$$
MOSES004
WWUS52 KMLB 311729
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
129 PM EDT THU MAR 31 2011
FLC009-097-311739-
/O.EXP.KMLB.SV.W.0016.000000T0000Z-110331T1730Z/
OSCEOLA-BREVARD-
129 PM EDT THU MAR 31 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BREVARD AND EASTERN
OSCEOLA COUNTIES WILL EXPIRE AT 130 PM EDT...
THE SEVERE STORM THAT PROMPTED THE WARNING HAS MOVED INTO THE
ATLANTIC OCEAN...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT THURSDAY EVENING
FOR EAST CENTRAL FLORIDA.
LAT...LON 2794 8052 2786 8049 2779 8120 2813 8124
2823 8126 2836 8072 2834 8072 2838 8066
2823 8063 2834 8064 2839 8059 2820 8059
2799 8050 2790 8048
TIME...MOT...LOC 1729Z 260DEG 59KT 2815 8038
$$
MOSESThe 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, 10:37 AM EDT | Tornado Warning | MLB | Lake, Orange, Seminole, Volusia | 53 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, 12:32 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
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.