Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Melbourne, FL

March 30, 1996Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 30, 1996, 4:11 PM EST for Brevard County, Florida. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 30, 1996, 4:11 PM EST (21:11 UTC)
Expired: Mar 30, 1996, 5:15 PM EST
In force: 64 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 21:11 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

Time	Report	Where	Remark
Mar 30, 4:48 PM EST	Hail 1.75	Micco, FL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.2 hours before the alert went out and 27 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: 1188 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 560 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS01 KMLB 302111 RRA
SVRMLB
FLC009-302215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
411 PM EST SAT MAR 30 1996
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL FLORIDA
 
   ...CENTRAL AND SOUTH BREVARD COUNTY
 
AT 410 PM...DOPPLER RADAR IN MELBOURNE SHOWED SEVERE THUNDERSTORMS
MOVING INTO GRANT AND BAREFOOT BAY...ALSO MOVING INTO AREAS FROM
VIERA TO SUNTREE AND NORTH MELBOURNE...AND TOWARD PATRICK AIR FORCE
BASE. EARLIER STORMS IN BREVARD COUNTY HAVE PRODUCED SOFTBALL SIZE
HAIL.
 
THESE ARE DANGEROUS STORMS. YOU SHOULD PREPARE FOR DAMAGING WIND
IN EXCESS OF 58 MPH...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE
OUTSIDE OR IN MOBILE HOMES SHOULD MOVE INSIDE A STRONG BUILDING AND
STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 2:00 PM EST	Severe Thunderstorm Warning	MLB	Brevard	60 min
Mar 30, 2:58 PM EST	Severe Thunderstorm Warning	MLB	Brevard	62 min
Mar 30, 3:56 PM EST	Severe Thunderstorm Warning	MLB	Orange, Osceola	64 min
Mar 30, 4:51 PM EST	Severe Thunderstorm Warning	MLB	Lake	69 min
Mar 30, 4:57 PM EST	Severe Thunderstorm Warning	MLB	Osceola	63 min
Mar 30, 5:12 PM EST	Severe Thunderstorm Warning	MLB	Brevard, Indian River, Okeechobee	63 min
Mar 30, 5:20 PM EST	Severe Thunderstorm Warning	MLB	Martin, Saint Lucie	55 min
Mar 30, 5:34 PM EST	Tornado Warning	MLB	Lake	26 min
Mar 30, 5:54 PM EST	Tornado Warning	MLB	Lake, Orange	36 min
Mar 30, 6:10 PM EST	Severe Thunderstorm Warning	MLB	Indian River	65 min
Mar 30, 6:21 PM EST	Severe Thunderstorm Warning	MLB	Seminole	54 min
Mar 30, 6:25 PM EST	Tornado Warning	MLB	Seminole	50 min
Mar 30, 6:43 PM EST	Tornado Warning	MLB	Orange	32 min

Nearby

Severe Thunderstorm Warnings in Florida, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.