Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 84, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 18, 2011, 8:15 PM EDT for Brevard County, Orange County, Florida. It was in force for 45 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
- Jun 18, 2011, 8:15 PM EDT (00:15 UTC)
- Expired
- Jun 18, 2011, 9:00 PM EDT
- In force
- 45 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Brevard County, FL, Orange County, FL
The radar
The Melbourne radar (KMLB), 36 km from the middle of the area, began a volume at 00:16 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 |
|---|---|---|---|
| Jun 18, 8:35 PM EDT | TSTM WND GST 53 | Patrick Airforce Base, FL | KCOF PATRICK AFB MEASURED 46 KT/53 MPH WIND GUST. |
| Jun 18, 8:36 PM EDT | TSTM WND GST 64 | Patrick Airforce Base, FL | KCOF PATRICK AFB MEASURED 56 KT/64 MPH WIND GUST. |
| Jun 18, 8:48 PM EDT | TSTM WND GST 61 | Patrick Airforce Base, FL | KCOF PATRICK AFB MEASURED 53 KT/61 MPH WIND GUST. |
| Jun 18, 8:50 PM EDT | TSTM WND GST 58 | Patrick Airforce Base, FL | KCOF PATRICK AFB MEASURED 50 KT/58 MPH WIND GUST. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 00:00Z, 0.3 hours before the alert went out and 21 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
- 1052 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1196 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
688
WUUS52 KMLB 190015
SVRMLB
FLC009-095-190100-
/O.NEW.KMLB.SV.W.0084.110619T0015Z-110619T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
815 PM EDT SAT JUN 18 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BREVARD COUNTY IN FLORIDA
SOUTHEASTERN ORANGE COUNTY IN FLORIDA
* UNTIL 900 PM EDT.
* AT 804 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS
STORM WAS LOCATED NEAR LONE CABBAGE FISH CAMP AND HIGHWAYS 520 AND
528 NEAR INTERSTATE 95...MOVING EAST AT 30 TO 35 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
SHARPES...COCOA...ROCKLEDGE...KENNEDY SPACE CENTER...VIERA...
MERRITT ISLAND...SUNTREE...CAPE CANAVERAL...COCOA BEACH...PORT
CANAVERAL AND PATRICK AIRFORCE BASE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 2844 8053 2842 8057 2837 8059 2819 8059
2825 8087 2834 8087 2834 8094 2850 8096
2855 8079 2835 8072 2846 8072 2847 8074
2858 8073 2863 8061 2861 8059
TIME...MOT...LOC 0011Z 277DEG 35KT 2837 8080
$$
GUSEMAN1 follow-up statement
378
WWUS52 KMLB 190032
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
832 PM EDT SAT JUN 18 2011
FLC095-190041-
/O.CAN.KMLB.SV.W.0084.000000T0000Z-110619T0100Z/
ORANGE-
832 PM EDT SAT JUN 18 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ORANGE COUNTY IS
CANCELLED...
LAT...LON 2842 8057 2837 8059 2819 8059 2825 8087
2833 8087 2840 8088 2842 8090 2848 8087
2852 8091 2852 8090 2855 8079 2835 8072
2846 8072 2847 8074 2857 8073 2863 8061
2860 8058 2844 8053
TIME...MOT...LOC 0031Z 277DEG 35KT 2836 8064
$$
FLC009-190100-
/O.CON.KMLB.SV.W.0084.000000T0000Z-110619T0100Z/
BREVARD-
832 PM EDT SAT JUN 18 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR NORTHERN BREVARD COUNTY...
AT 830 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR COCOA...MOVING EAST AT 30 TO 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CAPE
CANAVERAL...JETTY PARK...PORT CANAVERAL AND PATRICK AIRFORCE BASE.
LAT...LON 2842 8057 2837 8059 2819 8059 2825 8087
2833 8087 2840 8088 2842 8090 2848 8087
2852 8091 2852 8090 2855 8079 2835 8072
2846 8072 2847 8074 2857 8073 2863 8061
2860 8058 2844 8053
TIME...MOT...LOC 0031Z 277DEG 35KT 2836 8064
$$
GUSEMANThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:39 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Osceola | 36 min |
| Jun 18, 8:59 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 31 min |
| Jun 18, 9:18 PM EDT | Special Weather Statement | MLB | Brevard | 27 min |
| Jun 18, 9:26 PM EDT | Areal Flood Advisory | MLB | Brevard | 2 hr |
| Jun 19, 4:26 PM EDT | Special Weather Statement | MLB | Saint Lucie | 49 min |
| Jun 19, 5:40 PM EDT | Special Weather Statement | MLB | Osceola | 65 min |
| Jun 19, 6:22 PM EDT | Special Weather Statement | MLB | Osceola | 53 min |
| Jun 19, 6:29 PM EDT | Special Weather Statement | MLB | Lake | 61 min |
| Jun 19, 6:34 PM EDT | Areal Flood Advisory | MLB | Lake | 116 min |
| Jun 19, 7:10 PM EDT | Special Weather Statement | MLB | Orange | 65 min |
| Jun 19, 7:26 PM EDT | Areal Flood Advisory | MLB | Orange, Osceola | 2 hr |
| Jun 19, 7:30 PM EDT | Severe Thunderstorm Warning | MLB | Orange | 60 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.