Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 100, NWS Amarillo, TX

June 22, 2020Hemphill County, Wheeler County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 22, 2020, 2:28 AM CDT for Hemphill County, Wheeler County, Texas. It was in force for 33 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: Jun 22, 2020, 2:28 AM CDT (07:28 UTC)
Expired: Jun 22, 2020, 3:01 AM CDT
In force: 33 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hemphill County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 137 km from the middle of the area, began a volume at 07:30 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
Jun 21, 5:50 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.5 hours before the alert went out and 137 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: 983 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 3128 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

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 Jun 22, 12:04 AM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jun 22, 12:04 AM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Jun 22, 12:48 AM CDT, 1 hour 40 minutes before

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In the hours before

Special weather statement, Jun 22, 12:02 AM CDT, 2 hours 26 minutes before

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Special weather statement, Jun 22, 12:25 AM CDT, 2 hours 3 minutes before

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Special weather statement, Jun 22, 12:27 AM CDT, 2 hours 1 minute before

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Special weather statement, Jun 22, 1:23 AM CDT, 1 hour 5 minutes before

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Local storm report, Jun 22, 2:01 AM CDT, 27 minutes before

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Special weather statement, Jun 22, 2:15 AM CDT, 13 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
Jun 21, 7:44 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	46 min
Jun 21, 8:14 PM CDT	Special Weather Statement	AMA	Ochiltree	31 min
Jun 21, 8:25 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Lipscomb, Ochiltree	65 min
Jun 21, 8:50 PM CDT	Areal Flood Advisory	AMA	Lipscomb, Ochiltree	113 min
Jun 21, 9:09 PM CDT	Tornado Warning	AMA	Lipscomb	36 min
Jun 21, 9:24 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	30 min
Jun 21, 9:33 PM CDT	Special Weather Statement	AMA	Hemphill, Roberts	27 min
Jun 21, 9:36 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	24 min
Jun 21, 9:58 PM CDT	Special Weather Statement	AMA	Gray, Hemphill, Roberts, Wheeler	62 min
Jun 21, 10:14 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Roberts, Wheeler	61 min
Jun 21, 11:04 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Roberts, Wheeler	56 min
Jun 21, 11:59 PM CDT	Special Weather Statement	AMA	Wheeler	61 min
Jun 22, 12:02 AM CDT	Special Weather Statement	AMA	Hemphill	43 min
Jun 22, 12:25 AM CDT	Special Weather Statement	AMA	Ochiltree, Roberts	65 min
Jun 22, 12:27 AM CDT	Special Weather Statement	AMA	Hutchinson	63 min
Jun 22, 1:23 AM CDT	Special Weather Statement	AMA	Hemphill, Roberts	67 min
Jun 22, 2:15 AM CDT	Special Weather Statement	AMA	Roberts	45 min
Jun 22, 3:03 AM CDT	Special Weather Statement	AMA	Wheeler	27 min
Jun 22, 3:29 AM CDT	Special Weather Statement	AMA	Wheeler	31 min
Jun 22, 5:36 PM CDT	Special Weather Statement	AMA	Dallam	39 min
Jun 22, 5:50 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	85 min
Jun 22, 5:57 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	78 min
Jun 22, 6:03 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	72 min
Jun 22, 6:20 PM CDT	Special Weather Statement	AMA	Hansford	25 min
Jun 22, 6:33 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Oldham	72 min
Jun 22, 6:36 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Roberts	39 min
Jun 22, 6:45 PM CDT	Special Weather Statement	AMA	Oldham	30 min
Jun 22, 6:57 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	63 min
Jun 22, 5:16 PM CDT	Special Weather Statement	AMA	Texas	29 min
Jun 22, 5:31 PM CDT	Special Weather Statement	AMA	Texas	29 min

Nearby

Severe Thunderstorm Warnings in Texas, 2020 Every severe thunderstorm warning in 2020

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.