Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 321, NWS Amarillo, TX

July 10, 2019Carson County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 10, 2019, 4:15 PM CDT for Carson County, Texas. It was in force for 22 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: Jul 10, 2019, 4:15 PM CDT (21:15 UTC)
Expired: Jul 10, 2019, 4:37 PM CDT
In force: 22 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Carson County, TX

The radar

The Amarillo radar (KAMA), 37 km from the middle of the area, began a volume at 21:18 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, 9.3 hours before the alert went out and 37 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: 879 J/kg
Mixed-layer CIN: -161 J/kg
Mixed-layer LCL: 2427 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 85 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 Jul 10, 3:01 PM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, Jul 10, 3:01 PM CDT, 1 hour 14 minutes before

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Hazardous weather outlook, Jul 10, 3:05 PM CDT, 1 hour 10 minutes before

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In the hours before

Special weather statement, Jul 10, 12:38 PM CDT, 3 hours 37 minutes before

Special Weather Statement
National Weather Service Amarillo TX
1238 PM CDT Wed Jul 10 2019

TXZ018-101815-
Armstrong TX-
1238 PM CDT Wed Jul 10 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ARMSTRONG COUNTY
UNTIL 115 PM CDT...

At 1237 PM CDT, Doppler radar was tracking a strong thunderstorm near
Claude, moving southwest at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Claude.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3503 10163 3506 10162 3518 10138 3518 10135
      3514 10126 3485 10142
TIME...MOT...LOC 1737Z 041DEG 20KT 3509 10142

Rutt

Special weather statement, Jul 10, 2:51 PM CDT, 1 hour 24 minutes before

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Special weather statement, Jul 10, 3:26 PM CDT, 49 minutes before

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Special weather statement, Jul 10, 4:02 PM 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
Jul 9, 7:25 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Roberts	48 min
Jul 10, 11:41 AM CDT	Heat Advisory	AMA	Collingsworth, Randall	8 hr
Jul 10, 12:38 PM CDT	Special Weather Statement	AMA	Armstrong	37 min
Jul 10, 12:50 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	25 min
Jul 10, 12:58 PM CDT	Tornado Warning	AMA	Armstrong	32 min
Jul 10, 1:14 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	46 min
Jul 10, 1:30 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	30 min
Jul 10, 2:51 PM CDT	Special Weather Statement	AMA	Randall	24 min
Jul 10, 3:10 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	36 min
Jul 10, 3:26 PM CDT	Special Weather Statement	AMA	Deaf Smith	19 min
Jul 10, 4:02 PM CDT	Special Weather Statement	AMA	Deaf Smith	28 min
Jul 10, 4:58 PM CDT	Special Weather Statement	AMA	Potter	32 min
Jul 10, 5:18 PM CDT	Severe Thunderstorm Warning	AMA	Oldham, Potter	57 min
Jul 10, 5:38 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Moore, Potter	52 min
Jul 10, 5:54 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	66 min
Jul 10, 6:28 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	51 min
Jul 10, 6:48 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	34 min

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.