Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 325, NWS Amarillo, TX

July 10, 2019Hartley County, Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 10, 2019, 6:28 PM CDT for Hartley County, Oldham County, Texas. It was in force for 51 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, 6:28 PM CDT (23:28 UTC)
Expired: Jul 10, 2019, 7:19 PM CDT
In force: 51 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hartley County, TX, Oldham County, TX

The radar

The Amarillo radar (KAMA), 92 km from the middle of the area, began a volume at 23:30 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.5 hours before the alert went out and 93 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, 3 hours 27 minutes earlier.

Area forecast discussion, Jul 10, 3:01 PM CDT, 3 hours 27 minutes before

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Hazardous weather outlook, Jul 10, 6:18 PM CDT, 10 minutes before

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In the hours before

Special weather statement, Jul 10, 2:51 PM CDT, 3 hours 37 minutes before

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Special weather statement, Jul 10, 3:26 PM CDT, 3 hours 2 minutes before

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Special weather statement, Jul 10, 4:02 PM CDT, 2 hours 26 minutes before

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Special weather statement, Jul 10, 4:58 PM CDT, 1 hour 30 minutes before

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Local storm report, Jul 10, 5:29 PM CDT, 59 minutes before

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Local storm report, Jul 10, 5:29 PM CDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
529 PM CDT WED JUL 10 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     HAIL             VALLEY DE ORO           35.45N 102.11W
07/10/2019  M1.00 INCH       POTTER             TX   PUBLIC

            QUARTER SIZED HAIL, WITH LARGER STONES BEGINNING TO
            FALL.

&&

EVENT NUMBER AMA1901046

14

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, 4:15 PM CDT	Severe Thunderstorm Warning	AMA	Carson	22 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, 6:48 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.