Alert archive / Florida / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 37, NWS Melbourne, FL

May 14, 2011Brevard County, Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 14, 2011, 2:10 PM EDT for Brevard County, Osceola County, Florida. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 14, 2011, 2:10 PM EDT (18:10 UTC)
Expired: May 14, 2011, 2:54 PM EDT
In force: 44 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

Counties Brevard County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 12 km from the middle of the area, began a volume at 18:09 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.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.2 hours before the alert went out and 31 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 172 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1364 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 14 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.

223 
WUUS52 KMLB 141810
SVRMLB
FLC009-097-141915-
/O.NEW.KMLB.SV.W.0037.110514T1810Z-110514T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
210 PM EDT SAT MAY 14 2011

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BREVARD COUNTY IN FLORIDA
  NORTHEASTERN OSCEOLA COUNTY IN FLORIDA

* UNTIL 315 PM EDT.

* AT 204 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5
  MILES SOUTHWEST OF HDEER PARK...AND MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
  PALM BAY...CAMP HOLLY FISH CAMP...WEST MELBOURNE...MALABAR...
  GRANT...MELBOURNE...MELBOURNE BEACH...INDIALANTIC...SUNTREE...
  VIERA...INDIAN HARBOUR BEACH...SATELLITE BEACH...ROCKLEDGE...
  COCOA...PATRICK AIRFORCE BASE...MERRITT ISLAND...COCOA BEACH...PORT
  CANAVERAL AND CAPE CANAVERAL

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 2794 8052 2790 8051 2780 8094 2816 8116
      2841 8074 2839 8073 2834 8072 2843 8072
      2848 8064 2827 8066 2823 8063 2842 8063
      2853 8056 2844 8052 2840 8059 2820 8059
      2808 8056 2791 8047
TIME...MOT...LOC 1808Z 230DEG 26KT 2802 8099

$$

1 follow-up statement

638 
WWUS52 KMLB 141854
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
254 PM EDT SAT MAY 14 2011

FLC009-097-141902-
/O.CAN.KMLB.SV.W.0037.000000T0000Z-110514T1915Z/
OSCEOLA-BREVARD-
254 PM EDT SAT MAY 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BREVARD AND
NORTHEASTERN OSCEOLA COUNTIES IS CANCELLED...

THE STORMS HAVE MOVED WEAKENED AND MOVED OFFSHORE. STRONG WIND 
GUSTS...SMALL HAIL AND AN ISOLATED WATERSPOUT ARE POSSIBLE OVER THE 
IMMEDIATE COASTAL WATERS OF SOUTHERN COUNTY THROUGH 4PM AND A 
SPECIAL MARINE WARNING IS IN EFFECT.

LAT...LON 2794 8052 2790 8051 2780 8094 2816 8116
      2841 8074 2839 8073 2834 8072 2843 8072
      2848 8064 2827 8066 2823 8063 2842 8063
      2853 8056 2844 8052 2840 8059 2820 8059
      2808 8056 2791 8047
TIME...MOT...LOC 1852Z 230DEG 26KT 2822 8071

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 8:11 PM EDT	Special Marine Warning	MLB		94 min
May 14, 12:57 PM EDT	Special Weather Statement	MLB	Okeechobee	63 min
May 14, 1:19 PM EDT	Severe Thunderstorm Warning	MLB	Okeechobee, Osceola	56 min
May 14, 2:03 PM EDT	Special Weather Statement	MLB	Brevard, Indian River, Okeechobee, Osceola, Saint Lucie	42 min
May 14, 2:09 PM EDT	Special Marine Warning	MLB		111 min
May 14, 2:17 PM EDT	Severe Thunderstorm Warning	MLB	Indian River, Okeechobee, Saint Lucie	40 min
May 14, 2:40 PM EDT	Special Weather Statement	MLB	Orange, Seminole	50 min
May 14, 2:52 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Seminole, Volusia	53 min
May 14, 3:04 PM EDT	Severe Thunderstorm Warning	MLB	Orange, Osceola	45 min
May 14, 3:17 PM EDT	Special Marine Warning	MLB		118 min
May 14, 3:21 PM EDT	Special Weather Statement	MLB	Lake	69 min
May 14, 3:26 PM EDT	Special Weather Statement	MLB	Martin	64 min
May 14, 3:43 PM EDT	Severe Thunderstorm Warning	MLB	Martin	57 min
May 14, 3:45 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Volusia	60 min
May 14, 3:53 PM EDT	Special Marine Warning	MLB		112 min
May 14, 3:58 PM EDT	Special Marine Warning	MLB		92 min
May 14, 4:00 PM EDT	Special Weather Statement	MLB	Orange, Seminole	45 min
May 14, 4:23 PM EDT	Tornado Warning	MLB	Martin	14 min
May 14, 4:44 PM EDT	Special Weather Statement	MLB	Osceola	46 min
May 14, 5:18 PM EDT	Special Weather Statement	MLB	Indian River, Okeechobee, Saint Lucie	72 min
May 14, 5:29 PM EDT	Special Weather Statement	MLB	Martin	46 min

Nearby

Severe Thunderstorm Warnings in Florida, 2011 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.