Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 70, NWS San Angelo, TX

May 9, 1997Brown County, Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 9, 1997, 2:09 AM CDT for Brown County, Coleman County, Texas. 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: May 9, 1997, 2:09 AM CDT (07:09 UTC)
Expired: May 9, 1997, 3:10 AM CDT
In force: 61 min
Issued by: NWS San Angelo, TX
Area: Whole counties

Counties Brown County, TX, Coleman County, TX

The radar

The Dyess AFB radar (KDYX), 85 km from the middle of the area, began a volume at 07:11 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
May 9, 2:12 AM CDT	Thunderstorm Wind 52	Coleman, TX
May 9, 2:30 AM CDT	Thunderstorm Wind 58	Brownwood, TX	Downburst winds occurred over an area from Lake Brownwood State Park to the towns of Early and north Brownwood. A wind gust to 67 mph was recorded at the Brownwood airport. Most of the damage was concentrated in Early and northeast Brownwood. Numerous trees
May 9, 2:30 AM CDT	Tornado F1	Brownwood Arpt, TX	An off-duty weather observer witnessed a tornado which touched down on their house at Lake Brownwood. The tornado peeled the roof off and caused other damage to their house. Fortunately there were no injuries.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 8, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 7.2 hours before the alert went out and 217 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: 1444 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 10 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

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.

NWS San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 9, 1:58 AM CDT, 11 minutes earlier.

Area forecast discussion, May 9, 1:58 AM CDT, 11 minutes before

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In the hours before

Special weather statement, May 9, 1:30 AM CDT, 39 minutes before

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Special weather statement, May 9, 1:31 AM CDT, 38 minutes before

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The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 9:57 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	58 min
May 8, 11:02 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	33 min
May 8, 11:47 PM CDT	Flash Flood Warning	SJT	Fisher	3 hr
May 9, 12:22 AM CDT	Flash Flood Warning	SJT	Nolan, Taylor	3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1997 Every severe thunderstorm warning in 1997

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.