Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 7, NWS Corpus Christi, TX

January 21, 1998Calhoun County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Jan 21, 1998, 2:41 PM CST for Calhoun County, Texas. It was in force for 64 min. 1 report 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: Jan 21, 1998, 2:41 PM CST (20:41 UTC)
Expired: Jan 21, 1998, 3:45 PM CST
In force: 64 min
Issued by: NWS Corpus Christi, TX
Area: Whole counties

County Calhoun County, TX

The radar

The Corpus Christi radar (KCRP), 114 km from the middle of the area, began a volume at 20:40 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.

What was reported inside it

Time	Report	Where	Remark
Jan 21, 2:48 PM CST	Hail 1	Seadrift, TX	Spotter report of quarter sized hail.

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

Corpus Christi, TX (KCRP), launched 12:00Z, 8.7 hours before the alert went out and 106 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: 1524 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 498 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.3

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.

NWS Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 21, 2:23 PM CST, 18 minutes earlier.

Area forecast discussion, Jan 21, 2:23 PM CST, 18 minutes before

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In the hours before

Special weather statement, Jan 21, 10:30 AM CST, 4 hours 11 minutes before

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Special weather statement, Jan 21, 2:25 PM CST, 16 minutes before

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Special weather statement, Jan 21, 2:25 PM CST, 16 minutes before

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      <p id="message1">
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The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 21, 3:58 PM CST	Severe Thunderstorm Warning	CRP	Calhoun	47 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998 Every 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; radar from the NEXRAD Level II archive.