Alert archive / Florida / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS Melbourne, FL

June 14, 2011Brevard County, Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 14, 2011, 2:46 PM EDT for Brevard County, Volusia County, Florida. It was in force for 44 min. 8 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 14, 2011, 2:46 PM EDT (18:46 UTC)
Expired
Jun 14, 2011, 3:30 PM EDT
In force
44 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Brevard County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 56 km from the middle of the area, began a volume at 18:48 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

TimeReportWhereRemark
Jun 14, 3:10 PM EDTMARINE TSTM WIND 466 Ne Titusville, FLKSC 54 FT WIND TOWER NUMBER 714 MEASURED 40 KT/46 MPH WIND GUST.
Jun 14, 3:15 PM EDTMARINE TSTM WIND 464 N Haulover Canal, FLKSC 54 FT TOWER NUMBER 22 MEASURED 40 KT/46 MPH WIND GUST.
Jun 14, 3:20 PM EDTTSTM WND GST 585 W Playalinda Beach, FLKSC 54 FOOT WIND TOWER NUMBER 513 MEASURED 50 KT/58 MPH WIND GUST.
Jun 14, 3:20 PM EDTTSTM WND GST 752 Ssw Merritt Island Wi, FLKTTS AT NASA SHUTTLE LANDING FACILITY MEASURED 65 KT/75 MPH WIND GUST.
Jun 14, 3:25 PM EDTTSTM WND GST 562 Wsw Playalinda Beach, FLKSC 54 FOOT WIND TOWER NUMBER 3131 MEASURED 49 KT/56 MPH WIND GUST.
Jun 14, 3:25 PM EDTTSTM WND GST 633 Sw Playalinda Beach, FLKSC 54 FOOT WIND TOWER NUMBER 412 MEASURED 55 KT/63 MPH WIND GUST.
Jun 14, 3:25 PM EDTTSTM WND GST 734 Wsw Playalinda Beach, FLKSC 54 FOOT WIND TOWER NUMBER 512 MEASURED 63 KT/73 MPH WIND GUST.
Jun 14, 3:35 PM EDTMARINE TSTM WIND 543 Nne Kennedy Space Cen, FLKSC 54 FOOT TOWER NUMBER 509 MEASURED 47 KT/54 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 12:00Z, 6.8 hours before the alert went out and 29 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.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2011-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 271 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2011-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
271 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1216 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

511 
WUUS52 KMLB 141846
SVRMLB
FLC009-127-141930-
/O.NEW.KMLB.SV.W.0049.110614T1846Z-110614T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
246 PM EDT TUE JUN 14 2011

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BREVARD COUNTY IN FLORIDA
  SOUTHEASTERN VOLUSIA COUNTY IN FLORIDA

* UNTIL 330 PM EDT.

* AT 243 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR HAULOVER CANAL...AND MOVING
  SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
  KLONDIKE BEACH...TITUSVILLE...MERRITT ISLAND WILDLIFE REFUGE...
  PLAYALINDA BEACH AND KENNEDY SPACE CENTER

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.

&&

LAT...LON 2844 8053 2842 8057 2842 8058 2843 8061
      2858 8060 2846 8065 2849 8074 2860 8073
      2864 8079 2871 8075 2879 8084 2852 8077
      2859 8097 2874 8106 2880 8106 2882 8112
      2888 8116 2889 8078 2860 8058 2845 8052
TIME...MOT...LOC 1846Z 309DEG 12KT 2871 8075

$$

SEDLOCK
1 follow-up statement
644 
WWUS52 KMLB 141915
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
315 PM EDT TUE JUN 14 2011

FLC009-127-141930-
/O.CON.KMLB.SV.W.0049.000000T0000Z-110614T1930Z/
VOLUSIA-BREVARD-
315 PM EDT TUE JUN 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHERN BREVARD AND SOUTHEASTERN VOLUSIA COUNTIES...

AT 311 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR MERRITT ISLAND
WILDLIFE REFUGE...OR NEAR PLAYALINDA BEACH...MOVING SOUTHEAST AT 15
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KENNEDY
SPACE CENTER.

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.

&&

LAT...LON 2844 8053 2842 8057 2842 8058 2843 8061
      2858 8060 2846 8065 2849 8074 2860 8073
      2864 8079 2871 8075 2879 8084 2852 8077
      2859 8097 2874 8106 2880 8106 2882 8112
      2888 8116 2889 8078 2860 8058 2845 8052
TIME...MOT...LOC 1915Z 309DEG 12KT 2865 8066

$$

GUSEMAN

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 1:46 PM EDTSpecial Weather StatementMLBOrange44 min
Jun 14, 2:29 PM EDTSpecial Weather StatementMLBOsceola61 min
Jun 14, 2:43 PM EDTSpecial Weather StatementMLBSeminole47 min
Jun 14, 2:44 PM EDTSpecial Marine WarningMLB91 min
Jun 14, 2:51 PM EDTSevere Thunderstorm WarningMLBOsceola54 min
Jun 14, 3:03 PM EDTSevere Thunderstorm WarningMLBBrevard, Osceola42 min
Jun 14, 3:29 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Seminole, Volusia61 min
Jun 14, 3:59 PM EDTSpecial Marine WarningMLB91 min
Jun 14, 4:25 PM EDTSpecial Marine WarningMLB80 min
Jun 14, 5:04 PM EDTSevere Thunderstorm WarningMLBOrange, Osceola56 min
Jun 14, 5:18 PM EDTSpecial Weather StatementMLBMartin42 min
Jun 14, 5:21 PM EDTSevere Thunderstorm WarningMLBMartin, Saint Lucie39 min
Jun 14, 5:33 PM EDTSpecial Marine WarningMLB87 min
Jun 14, 5:35 PM EDTSpecial Weather StatementMLBSeminole40 min
Jun 14, 5:57 PM EDTSevere Thunderstorm WarningMLBMartin42 min
Jun 14, 5:59 PM EDTSevere Thunderstorm WarningMLBOsceola50 min
Jun 14, 6:19 PM EDTSpecial Weather StatementMLBSeminole41 min
Jun 14, 6:29 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange48 min
Jun 14, 7:17 PM EDTSpecial Weather StatementMLBSeminole, Volusia43 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.