Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 19, NWS Melbourne, FL

March 26, 2016Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 26, 2016, 7:22 PM EDT for Osceola County, Florida. It was in force for 38 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: Mar 26, 2016, 7:22 PM EDT (23:22 UTC)
Expired: Mar 26, 2016, 8:00 PM EDT
In force: 38 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 43 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 64 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: 963 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1137 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

382 
WUUS52 KMLB 262322
SVRMLB
FLC097-270000-
/O.NEW.KMLB.SV.W.0019.160326T2322Z-160327T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
722 PM EDT SAT MAR 26 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN OSCEOLA COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 800 PM EDT

* AT 721 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HARMONY...OR
  NEAR HOLOPAW...MOVING EAST AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  HOLOPAW...HARMONY AND ALLIGATOR LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2825 8121 2835 8086 2831 8086 2805 8087
      2804 8115 2816 8125 2819 8125
TIME...MOT...LOC 2321Z 262DEG 15KT 2820 8112 

HAIL...1.00IN
WIND...60MPH
 
$$

SEDLOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 8:18 PM EDT	Special Marine Warning	MLB		87 min
Mar 25, 9:16 PM EDT	Areal Flood Advisory	MLB	Saint Lucie	59 min
Mar 26, 4:48 PM EDT	Special Weather Statement	MLB	Seminole	42 min
Mar 26, 4:50 PM EDT	Special Weather Statement	MLB	Lake	55 min
Mar 26, 5:42 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	63 min
Mar 26, 5:50 PM EDT	Special Weather Statement	MLB	Orange	55 min
Mar 26, 6:22 PM EDT	Special Weather Statement	MLB	Lake	53 min
Mar 26, 6:43 PM EDT	Special Weather Statement	MLB	Orange, Osceola, Seminole	62 min
Mar 26, 6:53 PM EDT	Special Weather Statement	MLB	Lake, Volusia	52 min
Mar 26, 6:59 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole, Volusia	61 min
Mar 26, 7:53 PM EDT	Special Weather Statement	MLB	Seminole	52 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.