Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 39, NWS Melbourne, FL

May 4, 2016Brevard County, Indian River County, Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 4, 2016, 8:16 AM EDT for Brevard County, Indian River County, Osceola County, Florida. It was in force for 48 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 4, 2016, 8:16 AM EDT (12:16 UTC)
Expired: May 4, 2016, 9:04 AM EDT
In force: 48 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Brevard County, FL, Indian River County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 45 km from the middle of the area, began a volume at 12:19 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, 0.3 hours before the alert went out and 87 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: 338 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 1175 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

397 
WUUS52 KMLB 041216
SVRMLB
FLC009-061-097-041315-
/O.NEW.KMLB.SV.W.0039.160504T1216Z-160504T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
816 AM EDT WED MAY 4 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  INDIAN RIVER COUNTY IN EAST CENTRAL FLORIDA...
  SOUTHEASTERN OSCEOLA COUNTY IN EAST CENTRAL FLORIDA...
  SOUTHERN BREVARD COUNTY IN FLORIDA...

* UNTIL 915 AM EDT

* AT 815 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LAKE MARIAN...
  MOVING EAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PALM BAY...SEBASTIAN...VERO BEACH...FELLSMERE AND INDIAN RIVER SHORES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2762 8078 2764 8078 2765 8113 2782 8121
      2786 8130 2791 8131 2812 8112 2801 8048
      2756 8029
TIME...MOT...LOC 1215Z 275DEG 45KT 2788 8114 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

15

1 follow-up statement

073 
WWUS52 KMLB 041304
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
904 AM EDT WED MAY 4 2016

FLC009-061-097-041313-
/O.CAN.KMLB.SV.W.0039.000000T0000Z-160504T1315Z/
INDIAN RIVER FL-OSCEOLA FL-BREVARD FL-
904 AM EDT WED MAY 4 2016

...THE SEVERE THUNDERSTORM WARNING FOR INDIAN RIVER...SOUTHEASTERN
OSCEOLA AND SOUTHERN BREVARD COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...BUT WAS STILL STRONG. THEREFORE THE WARNING HAS BEEN
CANCELLED.  HOWEVER GUSTY WINDS...HEAVY RAIN AND FREQUENT
LIGHTNING ARE STILL POSSIBLE.

LAT...LON 2762 8078 2764 8078 2765 8113 2782 8121
      2786 8130 2791 8131 2812 8112 2801 8048
      2756 8029
TIME...MOT...LOC 1302Z 275DEG 45KT 2783 8046 

$$

15

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 5:03 AM EDT	Special Weather Statement	MLB	Lake	42 min
May 4, 5:40 AM EDT	Special Weather Statement	MLB	Orange	50 min
May 4, 5:52 AM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange	39 min
May 4, 7:34 AM EDT	Special Weather Statement	MLB	Osceola	56 min
May 4, 7:48 AM EDT	Special Weather Statement	MLB	Flagler	42 min
May 4, 8:40 AM EDT	Special Marine Warning	MLB		95 min
May 4, 8:43 AM EDT	Special Weather Statement	MLB	Brevard	32 min
May 4, 9:02 AM EDT	Special Weather Statement	MLB	Indian River, Okeechobee	58 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016 Every severe thunderstorm warning in 2016

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.