Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 4, NWS Melbourne, FL

March 13, 1993Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Mar 13, 1993, 1:05 AM EST for Osceola County, Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Mar 13, 1993, 1:05 AM EST (06:05 UTC)
Expired: Mar 13, 1993, 2:00 AM EST
In force: 55 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 06:06 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 00:00Z, 6.1 hours before the alert went out and 78 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: 701 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 721 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 130606
TORMLB
FLC097-130700-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
105 AM EST SAT MAR 13 1993
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  200 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL FLORIDA
 
   ...OSCEOLA COUNTY
 
AT 0103 RADAR INDICATED A POSSIBLE TORNADO IN A LINE OF SEVERE
THUNDERSTORMS FROM ABOUT 10 MILES WEST OF KISSIMMEE TO 20 MILES
SOUTHWEST OF KISSIMMEE. THESE STORMS HAVE A HISTORY OF PRODUCING
DAMAGING AND KILLER TORNADOES AND ARE MOVING NORTHEAST AT 45 MPH.
BCH
 
THIS IS A DANGEROUS STORM. ACT QUICKLY. IF YOU ARE IN THE PATH OF
THIS TORNADO MOVE TO A SHELTER BELOW GROUNBD IF AVAILABLE.  OTHERWISE
GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID
WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR
GET INTO A DITCH OR CULVERT.
 
 
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 13, 12:08 AM EST	Tornado Warning	MLB	Lake	67 min
Mar 13, 12:37 AM EST	Tornado Warning	MLB	Orange	68 min
Mar 13, 12:48 AM EST	Tornado Warning	MLB	Seminole	57 min
Mar 13, 1:05 AM EST	Severe Thunderstorm Warning	MLB	Marion	85 min
Mar 13, 1:05 AM EST	Severe Thunderstorm Warning	MLB	Flagler, Volusia	10 min
Mar 13, 1:15 AM EST	Tornado Warning	MLB	Flagler, Volusia	75 min
Mar 13, 1:42 AM EST	Severe Thunderstorm Warning	MLB	Orange	63 min
Mar 13, 1:58 AM EST	Severe Thunderstorm Warning	MLB	Brevard	62 min
Mar 13, 2:00 AM EST	Severe Thunderstorm Warning	MLB	Osceola	60 min
Mar 13, 4:05 AM EST	Severe Thunderstorm Warning	MLB	Indian River	55 min
Mar 13, 4:31 AM EST	Severe Thunderstorm Warning	MLB	Palm Beach	59 min

Nearby

Tornado Warnings in Florida, 1993 Every tornado warning in 1993 Tornadoes in 1993

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.