Alert archive / Texas / Special Weather Statements in 2019

Special Weather Statement, NWS Amarillo, TX

July 2, 2019Dallam County, Texas

NWS Amarillo, TX issued this special weather statement at Jul 2, 2019, 3:21 PM CDT for Dallam County, Texas. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 2, 2019, 3:21 PM CDT (20:21 UTC)
Expired: Jul 2, 2019, 4:00 PM CDT
In force: 39 min
Issued by: NWS Amarillo, TX

County Dallam County, TX

The radar

The Amarillo radar (KAMA), 150 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 151 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: 28 J/kg
Mixed-layer CIN: -358 J/kg
Mixed-layer LCL: 1781 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 2, 12:37 PM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Jul 2, 12:37 PM CDT, 2 hours 44 minutes before

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Hazardous weather outlook, Jul 2, 3:52 AM CDT, 11 hours 29 minutes before

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In the hours before

Special weather statement, Jul 2, 3:21 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Amarillo TX
321 PM CDT Tue Jul 2 2019

TXZ001-006-022100-
Hartley TX-Dallam TX-
321 PM CDT Tue Jul 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DALLAM AND NORTHWESTERN
HARTLEY COUNTIES UNTIL 400 PM CDT...

At 321 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Texline, or 18 miles southeast of Clayton, moving
southeast at 20 mph.

Half inch hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Texline and Ware.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3638 10304 3647 10295 3624 10245 3571 10298
      3576 10304
TIME...MOT...LOC 2021Z 310DEG 17KT 3623 10298

LFM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 7:05 PM CDT	Special Weather Statement	AMA	Oldham	25 min
Jul 1, 7:06 PM CDT	Special Weather Statement	AMA	Deaf Smith	24 min
Jul 1, 7:26 PM CDT	Special Weather Statement	AMA	Deaf Smith	49 min
Jul 1, 7:27 PM CDT	Special Weather Statement	AMA	Oldham	48 min
Jul 1, 8:13 PM CDT	Special Weather Statement	AMA	Oldham	47 min
Jul 1, 9:06 PM CDT	Special Weather Statement	AMA	Hartley	24 min
Jul 1, 9:14 PM CDT	Areal Flood Advisory	AMA	Hartley, Oldham	2 hr
Jul 1, 9:28 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore	47 min
Jul 1, 10:03 PM CDT	Special Weather Statement	AMA	Potter	27 min
Jul 1, 10:11 PM CDT	Special Weather Statement	AMA	Sherman	34 min
Jul 1, 10:42 PM CDT	Special Weather Statement	AMA	Potter	48 min
Jul 2, 12:33 AM CDT	Special Weather Statement	AMA	Ochiltree	42 min
Jul 2, 12:49 AM CDT	Areal Flood Advisory	AMA	Hansford, Ochiltree	3 hr
Jul 2, 1:28 AM CDT	Special Weather Statement	AMA	Ochiltree	47 min
Jul 1, 8:45 PM CDT	Special Weather Statement	AMA	Cimarron	45 min
Jul 2, 1:46 AM CDT	Special Weather Statement	AMA	Beaver	44 min
Jul 2, 4:11 PM CDT	Special Weather Statement	AMA	Cimarron	34 min
Jul 2, 4:22 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	30 min
Jul 2, 4:53 PM CDT	Special Weather Statement	AMA	Cimarron	37 min
Jul 2, 4:54 PM CDT	Special Weather Statement	AMA	Cimarron	36 min
Jul 2, 5:26 PM CDT	Special Weather Statement	AMA	Cimarron	34 min

Nearby

Special Weather Statements in Texas, 2019 Every special weather statement 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.