Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 16, NWS Melbourne, FL

March 3, 1993Orange County, Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 3, 1993, 11:30 PM EST for Orange County, Osceola County, Florida. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Mar 3, 1993, 11:30 PM EST (04:30 UTC)
Expired
Mar 4, 1993, 12:30 AM EST
In force
60 min
Issued by
NWS Melbourne, FL
Area
Whole counties

Counties Orange County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 60 km from the middle of the area, began a volume at 04:20 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

Tampa Bay, FL (KTBW), launched 00:00Z, 4.5 hours before the alert went out and 132 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-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 1993-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 476 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 1993-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
476 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.9
Supercell composite
2.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 3, 10:52 PM ESTSevere Thunderstorm WarningMLBMarion68 min
Mar 3, 11:00 PM ESTSevere Thunderstorm WarningMLBLake30 min
Mar 3, 11:50 PM ESTSevere Thunderstorm WarningMLBFlagler, Volusia55 min
Mar 4, 12:06 AM ESTSevere Thunderstorm WarningMLBSeminole40 min

Nearby

Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning 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.