Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 5, NWS Melbourne, FL

January 17, 20164 counties in Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jan 17, 2016, 5:05 AM EST for 4 counties in Florida. It was in force for 55 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: Jan 17, 2016, 5:05 AM EST (10:05 UTC)
Expired: Jan 17, 2016, 6:00 AM EST
In force: 55 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Melbourne radar (KMLB), 79 km from the middle of the area, began a volume at 10:08 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 17, 12:47 AM EST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 10.1 hours before the alert went out and 121 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1412 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

530 
WUUS52 KMLB 171005
SVRMLB
FLC009-061-093-097-171100-
/O.NEW.KMLB.SV.W.0005.160117T1005Z-160117T1100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
505 AM EST SUN JAN 17 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 600 AM EST

* AT 503 AM EST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 7 MILES WEST OF AVON PARK TO NEAR SOUTHEAST
  ARCADIA...MOVING NORTHEAST AT 60 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  PALM BAY...OKEECHOBEE...KENANSVILLE...BASINGER AND LAKE MARIAN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO A
PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM EST FOR EAST CENTRAL
FLORIDA.

LAT...LON 2730 8100 2730 8103 2733 8105 2736 8103
      2738 8107 2739 8112 2742 8114 2745 8115
      2749 8120 2755 8121 2756 8118 2760 8114
      2766 8113 2782 8121 2784 8123 2786 8130
      2813 8072 2728 8068 2723 8098
TIME...MOT...LOC 1003Z 238DEG 53KT 2762 8162 2719 8182 

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

CRISTALDI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 16, 9:19 PM EST	Wind Advisory	MLB	Lake, Okeechobee, Orange, Osceola, Seminole, Volusia	18 hr
Jan 17, 4:30 AM EST	Severe Thunderstorm Warning	MLB	Brevard	22 min
Jan 17, 5:22 AM EST	Special Weather Statement	MLB	Brevard, Osceola	38 min
Jan 17, 5:40 AM EST	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola	50 min
Jan 17, 6:23 AM EST	Special Weather Statement	MLB	Indian River, Martin, Okeechobee, Saint Lucie	52 min
Jan 17, 6:59 AM EST	Special Weather Statement	MLB	Martin	46 min
Jan 17, 7:03 AM EST	Tornado Warning	MLB	Martin	14 min
Jan 17, 7:15 AM EST	Special Marine Warning	MLB		60 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.