Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 39, NWS Tampa Bay, FL

May 17, 1994Sumter County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at May 17, 1994, 4:31 PM EDT for Sumter County, Florida. It was in force for 44 min.

The area

The counties it named.

The facts

Issued: May 17, 1994, 4:31 PM EDT (20:31 UTC)
Expired: May 17, 1994, 5:15 PM EDT
In force: 44 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Sumter County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.5 hours before the alert went out and 116 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: 1322 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 17, 4:28 PM EDT, 3 minutes before

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Special weather statement, May 17, 4:30 PM EDT, 1 minute before

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    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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Nearby

Severe Thunderstorm Warnings in Florida, 1994 Every severe thunderstorm warning in 1994

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.