Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 59, NWS Amarillo, TX

May 4, 2015Moore County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 4, 2015, 3:16 PM CDT for Moore County, Texas. It was in force for 28 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 4, 2015, 3:16 PM CDT (20:16 UTC)
Expired: May 4, 2015, 3:44 PM CDT
In force: 28 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Moore County, TX

The radar

The Amarillo radar (KAMA), 69 km from the middle of the area, began a volume at 20:16 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.3 hours before the alert went out and 70 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: 3 J/kg
Mixed-layer CIN: -260 J/kg
Mixed-layer LCL: 2022 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -54 m²/s²
0-3 km storm-relative helicity: -25 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 4, 12:21 PM CDT, 2 hours 55 minutes earlier.

Area forecast discussion, May 4, 12:21 PM CDT, 2 hours 55 minutes before

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Hazardous weather outlook, May 4, 4:30 AM CDT, 10 hours 46 minutes before

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In the hours before

Special weather statement, May 4, 1:12 PM CDT, 2 hours 4 minutes before

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Special weather statement, May 4, 1:33 PM CDT, 1 hour 43 minutes before

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Special weather statement, May 4, 1:38 PM CDT, 1 hour 38 minutes before

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Special weather statement, May 4, 2:10 PM CDT, 1 hour 6 minutes before

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Special weather statement, May 4, 2:16 PM CDT, 1 hour before

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Special weather statement, May 4, 2:34 PM CDT, 42 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 3, 7:16 PM CDT	Special Weather Statement	AMA	Hutchinson	44 min
May 3, 7:31 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson	44 min
May 3, 7:41 PM CDT	Special Weather Statement	AMA	Hansford	49 min
May 3, 8:50 PM CDT	Special Weather Statement	AMA	Randall	40 min
May 3, 9:34 PM CDT	Special Weather Statement	AMA	Lipscomb	41 min
May 3, 10:11 PM CDT	Special Weather Statement	AMA	Roberts	49 min
May 3, 10:44 PM CDT	Special Weather Statement	AMA	Roberts	61 min
May 4, 12:29 PM CDT	Special Weather Statement	AMA	Moore	61 min
May 4, 12:58 PM CDT	Special Weather Statement	AMA	Oldham	62 min
May 4, 1:12 PM CDT	Special Weather Statement	AMA	Potter	63 min
May 4, 1:33 PM CDT	Special Weather Statement	AMA	Hartley	57 min
May 4, 1:38 PM CDT	Special Weather Statement	AMA	Hartley	67 min
May 4, 2:10 PM CDT	Special Weather Statement	AMA	Moore	65 min
May 4, 2:16 PM CDT	Special Weather Statement	AMA	Oldham	59 min
May 4, 2:20 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Potter	55 min
May 4, 2:34 PM CDT	Special Weather Statement	AMA	Dallam	56 min
May 4, 2:41 PM CDT	Areal Flood Advisory	AMA	Moore, Potter	4 hr
May 4, 3:59 PM CDT	Areal Flood Advisory	AMA	Hartley	4 hr
May 4, 4:35 PM CDT	Special Weather Statement	AMA	Oldham	55 min
May 4, 4:38 PM CDT	Special Weather Statement	AMA	Moore	67 min
May 4, 5:52 PM CDT	Special Weather Statement	AMA	Randall	68 min
May 4, 5:53 PM CDT	Special Weather Statement	AMA	Oldham	67 min
May 4, 6:18 PM CDT	Special Weather Statement	AMA	Potter	57 min
May 4, 6:20 PM CDT	Special Weather Statement	AMA	Hansford	55 min
May 4, 6:25 PM CDT	Special Weather Statement	AMA	Ochiltree	65 min
May 3, 10:02 PM CDT	Special Weather Statement	AMA	Beaver	43 min
May 4, 4:22 PM CDT	Special Weather Statement	AMA	Beaver	53 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.