Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 8, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 30, 2011, 5:18 PM EDT for 4 counties in Florida. It was in force for 57 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 30, 2011, 5:18 PM EDT (21:18 UTC)
- Expired
- Mar 30, 2011, 6:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Brevard County, FL, Orange County, FL, Osceola County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 21:18 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 30, 5:19 PM EDT | TSTM WND GST 85 | Kennedy Space Center, FL | 54 FT TOWER NUMBER 0421 MEASURED 74 KT/85 MPH WIND GUST. |
| Mar 30, 5:21 PM EDT | TSTM WND GST 64 | Kennedy Space Center, FL | KTTS AT KENNEDY SPACE CENTER MESURED 56 KT/64 MPH WIND GUST. |
| Mar 30, 5:46 PM EDT | TSTM WND GST 62 | Patrick Airforce Base, FL | KCOF MEASURED 54 KT/62 MPH WIND GUST. |
| Mar 30, 5:50 PM EDT | TSTM WND DMG | Merritt Island, FL | WIND DAMAGE ALONG NORTH BANANA RIVER DRIVE AND CENTRAL AVE. PATIO DESTROYED AND LIFTED OVER HOUSE INTO FRONT YARD. DAMAGE TO WOODEN FENCES AND TREE LIMBS DOWN. |
| Mar 30, 5:59 PM EDT | TSTM WND GST 59 | Melbourne, FL | KMLB AT MELBOURNE INTERNATIONAL AIRPORT MEASURED 51 KT/58 MPH WIND GUST. |
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 30, 11:10 AM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 9.3 hours before the alert went out and 41 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
- 305 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 800 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
933
WUUS52 KMLB 302118
SVRMLB
FLC009-095-097-127-302215-
/O.NEW.KMLB.SV.W.0008.110330T2118Z-110330T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
518 PM EDT WED MAR 30 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BREVARD COUNTY IN FLORIDA
SOUTHEASTERN ORANGE COUNTY IN FLORIDA
OSCEOLA COUNTY IN FLORIDA
EXTREME SOUTHEASTERN VOLUSIA COUNTY IN FLORIDA
* UNTIL 615 PM EDT.
* AT 513 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM APOLLO BEACH TO MIMS TO
TO HARMONY TO 12 MILES WEST OF LAKE KISSIMMEE...MOVING EAST AT 65
MPH.
* THIS LINE WILL PRODUCE STRONG AND DAMAGING WIND GUSTS ACROSS MOST
COMMUNITIES WITHIN THE WARNING AREA.
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 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.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS
ACROSS THE AREA. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!!
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2794 8052 2787 8049 2783 8050 2782 8087
2775 8117 2802 8143 2802 8138 2807 8135
2808 8138 2842 8105 2888 8084 2888 8081
2894 8082 2861 8059 2861 8058 2846 8052
2839 8059 2821 8059 2786 8044
TIME...MOT...LOC 2115Z 272DEG 58KT 2886 8074 2871 8078
2842 8093 2826 8109 2809 8125 2798 8143
$$3 follow-up statements
114
WWUS52 KMLB 302133
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
533 PM EDT WED MAR 30 2011
FLC127-302140-
/O.CAN.KMLB.SV.W.0008.000000T0000Z-110330T2215Z/
VOLUSIA-
533 PM EDT WED MAR 30 2011
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHEASTERN VOLUSIA
COUNTY IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR EAST CENTRAL FLORIDA.
LAT...LON 2786 8044 2794 8052 2789 8050 2787 8049
2783 8051 2782 8087 2775 8117 2802 8143
2819 8128 2826 8106 2839 8106 2858 8080
2858 8079 2835 8072 2860 8076 2872 8068
2847 8052 2838 8059 2821 8059 2787 8044
TIME...MOT...LOC 2130Z 272DEG 58KT 2862 8056 2849 8073
2838 8080 2829 8085 2821 8091 2811 8113
2798 8138
$$
FLC009-095-097-302215-
/O.CON.KMLB.SV.W.0008.000000T0000Z-110330T2215Z/
OSCEOLA-ORANGE-BREVARD-
533 PM EDT WED MAR 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR BREVARD...SOUTHEASTERN ORANGE AND OSCEOLA COUNTIES...
AT 527 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM PLAYALINDA BEACH TO LONE
CABBAGE FISH CAMP TO 8 MILES NORTHEAST OF HOLOPAW TO 6 MILES SOUTH
OF HARMONY TO 11 MILES NORTHWEST OF LAKE KISSIMMEE...MOVING EAST AT
65 MPH.
PERSONS IN CENTRAL AND SOUTHERN PORTIONS OF BREVARD AND OSCEOLA
COUNTIES WILL NEED TO TAKE SHELTER NOW!!! STRONG AND DAMAGING WIND
GUSTS WILL OCCUR ACROSS MOST COMMUNITIES IN THE WARNING AREA.
THIS LINE HAS ALREADY PRODUCED WIDESPREAD DAMAGE...WITH WIND GUSTS
OF 60 TO 80 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2786 8044 2794 8052 2789 8050 2787 8049
2783 8051 2782 8087 2775 8117 2802 8143
2819 8128 2826 8106 2839 8106 2858 8080
2858 8079 2835 8072 2860 8076 2872 8068
2847 8052 2838 8059 2821 8059 2787 8044
TIME...MOT...LOC 2130Z 272DEG 58KT 2862 8056 2849 8073
2838 8080 2829 8085 2821 8091 2811 8113
2798 8138
$$
CRISTALDI159
WWUS52 KMLB 302145
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
545 PM EDT WED MAR 30 2011
FLC095-302155-
/O.CAN.KMLB.SV.W.0008.000000T0000Z-110330T2215Z/
ORANGE-
545 PM EDT WED MAR 30 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ORANGE COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR EAST CENTRAL FLORIDA.
LAT...LON 2786 8044 2794 8052 2783 8051 2775 8117
2802 8143 2809 8136 2818 8089 2835 8082
2842 8075 2834 8072 2843 8072 2845 8066
2845 8065 2823 8063 2842 8063 2847 8053
2847 8052 2833 8060 2787 8044
TIME...MOT...LOC 2145Z 272DEG 58KT 2849 8038 2838 8046
2830 8055 2823 8059 2809 8074 2799 8116
$$
FLC009-097-302215-
/O.CON.KMLB.SV.W.0008.000000T0000Z-110330T2215Z/
OSCEOLA-BREVARD-
545 PM EDT WED MAR 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHERN BREVARD AND CENTRAL OSCEOLA COUNTIES...
AT 545 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM CAPE CANAVERAL TO ROCKLEDGE
TO SPACE COAST STADIUM TO DEER PARK TO 6 MILES NORTHWEST OF LAKE
KISSIMMEE...MOVING EAST AT 60 MPH.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PATRICK
AIRFORCE BASE...SATELLITE BEACH...INDIAN HARBOUR BEACH...LAKE
MARIAN...KENANSVILLE...FOREVER FLORIDA...WEST MELBOURNE...
INDIALANTIC...MELBOURNE...KENANSVILLE... PALM BAY...MALABAR...
VALKARIA...MICCO...GRANT...FLORIDANA BEACH AND BAREFOOT BAY.
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 STORM. 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.
THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS
EAST CENTRAL FLORIDA! THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR EAST CENTRAL FLORIDA.
&&
LAT...LON 2786 8044 2794 8052 2783 8051 2775 8117
2802 8143 2809 8136 2818 8089 2835 8082
2842 8075 2834 8072 2843 8072 2845 8066
2845 8065 2823 8063 2842 8063 2847 8053
2847 8052 2833 8060 2787 8044
TIME...MOT...LOC 2145Z 272DEG 58KT 2849 8038 2838 8046
2830 8055 2823 8059 2809 8074 2799 8116
$$850
WWUS52 KMLB 302217
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
617 PM EDT WED MAR 30 2011
FLC009-097-302226-
/O.EXP.KMLB.SV.W.0008.000000T0000Z-110330T2215Z/
OSCEOLA-BREVARD-
617 PM EDT WED MAR 30 2011
...THE EARLIER SEVERE THUNDERSTORM WARNING FOR SOUTHERN BREVARD AND
CENTRAL OSCEOLA COUNTIES HAS EXPIRED...
THE LINE OF SEVERE STORMS THAT PROMPTED THE WARNING HAS EXITED THE
WARNING AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. A
SEVERE THUNDERSTORM WARNING CONTINUES FOR THE EXTREME SOUTHEAST
PORTION OF BREVARD COUNTY.
LAT...LON 2786 8044 2794 8052 2783 8051 2775 8117
2802 8143 2809 8136 2818 8089 2835 8082
2842 8075 2834 8072 2843 8072 2845 8066
2845 8065 2823 8063 2842 8063 2847 8053
2847 8052 2833 8060 2787 8044
TIME...MOT...LOC 2145Z 272DEG 58KT 2843 8038 2832 8046
2825 8055 2818 8059 2804 8075 2795 8117
$$
CRISTALDIThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 3:47 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Seminole, Volusia | 73 min |
| Mar 30, 3:49 PM EDT | Special Weather Statement | MLB | Brevard, Indian River, Osceola, Seminole | 56 min |
| Mar 30, 3:57 PM EDT | Special Marine Warning | MLB | 93 min | |
| Mar 30, 3:59 PM EDT | Tornado Warning | MLB | Lake | 46 min |
| Mar 30, 4:02 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Indian River | 43 min |
| Mar 30, 4:29 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Mar 30, 4:43 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Lake, Orange, Osceola, Seminole, Volusia | 62 min |
| Mar 30, 5:30 PM EDT | Special Marine Warning | MLB | 90 min | |
| Mar 30, 6:13 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Indian River | 44 min |
| Mar 30, 6:14 PM EDT | Special Marine Warning | MLB | 91 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.