Alert archive / Florida / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 213, NWS Tampa Bay, FL

September 30, 1998Hillsborough County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Sep 30, 1998, 3:09 PM EDT for Hillsborough County, Florida. It was in force for 61 min. 3 reports 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
Sep 30, 1998, 3:09 PM EDT (19:09 UTC)
Expired
Sep 30, 1998, 4:10 PM EDT
In force
61 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hillsborough County, FL

What was reported inside it

TimeReportWhereRemark
Sep 30, 3:25 PM EDTThunderstorm WindTampa, FLThe Tampa Electric Company reported thunderstorm winds downed several large tree limbs and power lines in Tampa.
Sep 30, 3:30 PM EDTThunderstorm WindTemple Terrace, FLThe public reported thunderstorm winds, estimated between 60 to 70 mph, destroyed a reinforced lanai of a home in Temple Terrace. Several large tree limbs were also downed by the thunderstorm winds.
Sep 30, 3:30 PM EDTHail 0.88Brandon, FLNickel sized hail was reported by the public in Brandon.

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

Jacksonville, FL (KJAX), launched 12:00Z, 7.2 hours before the alert went out and 295 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, Jacksonville, FL at 12:00Z on 1998-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Jacksonville, FL at 12:00Z on 1998-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.193958Sfc1 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
2 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1382 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

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.

Nearby

Severe Thunderstorm Warnings in Florida, 1998Every severe thunderstorm warning in 1998

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.