Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 4, NWS Miami, FL

April 9, 1993Collier County, Florida

NWS Miami, FL issued this tornado warning at Apr 9, 1993, 11:47 AM EDT for Collier County, Florida. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1993, 11:47 AM EDT (15:47 UTC)
Expired
Apr 9, 1993, 12:45 PM EDT
In force
58 min
Issued by
NWS Miami, FL
Area
Whole counties

County Collier County, FL

The nearest sounding before it

Key West, FL (KEYW), launched 12:00Z, 3.8 hours before the alert went out and 174 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, Key West, FL at 12:00Z on 1993-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 310 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, Key West, FL at 12:00Z on 1993-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.19395878Sfc1 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
310 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
740 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

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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 Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 2:42 PM EDTSevere Thunderstorm WarningMFLBroward, Miami-Dade63 min

Nearby

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