Alert archive / Texas / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 18, NWS Austin/San Antonio, TX

March 28, 1989Milam County, Williamson County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 28, 1989, 12:45 PM CST for Milam County, Williamson County, Texas. It was in force for 45 min.

The area

The counties it named.

The facts

Issued: Mar 28, 1989, 12:45 PM CST (18:45 UTC)
Expired: Mar 28, 1989, 1:30 PM CST
In force: 45 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

Counties Milam County, TX, Williamson County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 6.8 hours before the alert went out and 184 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 752 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -166 m²/s²
0-3 km storm-relative helicity: -113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, Mar 28, 8:39 AM CST, 4 hours 6 minutes before

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Special weather statement, Mar 28, 10:11 AM CST, 2 hours 34 minutes before

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Local storm report, Mar 28, 10:55 AM CST, 1 hour 50 minutes before

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Local storm report, Mar 28, 11:16 AM CST, 1 hour 29 minutes before

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Special weather statement, Mar 28, 11:21 AM CST, 1 hour 24 minutes before

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Special weather statement, Mar 28, 11:41 AM CST, 1 hour 4 minutes before

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The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 27, 6:38 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	52 min
Mar 27, 7:45 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	60 min
Mar 27, 8:55 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	65 min
Mar 27, 10:09 PM CST	Severe Thunderstorm Warning	EWX	Kinney, Maverick	66 min
Mar 27, 10:09 PM CST	Severe Thunderstorm Warning	EWX	Edwards	66 min
Mar 27, 11:18 PM CST	Severe Thunderstorm Warning	EWX	Kinney, Maverick	57 min
Mar 27, 11:18 PM CST	Severe Thunderstorm Warning	EWX	Edwards	57 min
Mar 28, 4:25 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	60 min

Nearby

Severe Thunderstorm Warnings in Texas, 1989 Every severe thunderstorm warning in 1989

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.