Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 130, NWS Amarillo, TX

May 20, 20194 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 20, 2019, 8:13 PM CDT for 4 counties in Texas. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 20, 2019, 8:13 PM CDT (01:13 UTC)
Expired: May 20, 2019, 9:15 PM CDT
In force: 62 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Collingsworth County, TX, Donley County, TX, Gray County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 106 km from the middle of the area, began a volume at 01:13 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.

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 20, 12:36 PM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.2 hours before the alert went out and 105 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: 1290 m above ground
0-6 km bulk shear: 92 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 20, 6:32 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 20, 6:32 PM CDT, 1 hour 41 minutes before

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Hazardous weather outlook, May 20, 8:03 PM CDT, 10 minutes before

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In the hours before

Local storm report, May 20, 4:18 PM CDT, 3 hours 55 minutes before

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Local storm report, May 20, 4:20 PM CDT, 3 hours 53 minutes before

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Special weather statement, May 20, 4:39 PM CDT, 3 hours 34 minutes before

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Local storm report, May 20, 5:20 PM CDT, 2 hours 53 minutes before

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Local storm report, May 20, 5:37 PM CDT, 2 hours 36 minutes before

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Special weather statement, May 20, 8:09 PM CDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 8:09 PM CDT	Special Weather Statement	AMA	Collingsworth, Donley	36 min
May 20, 9:16 PM CDT	Special Weather Statement	AMA	Hemphill	29 min
May 20, 11:35 PM CDT	Special Weather Statement	AMA	Collingsworth, Wheeler	55 min
May 21, 12:45 AM CDT	Special Weather Statement	AMA	Collingsworth, Wheeler	60 min
May 21, 7:00 AM CDT	High Wind Warning	AMA	Deaf Smith, Oldham	13 hr
May 21, 7:00 AM CDT	Wind Advisory	AMA	Armstrong, Potter, Randall	13 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2019 Every severe thunderstorm warning in 2019

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; radar from the NEXRAD Level II archive.