Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Amarillo, TX

August 7, 2016Oldham County, Texas

NWS Amarillo, TX issued this special weather statement at Aug 7, 2016, 2:25 PM CDT for Oldham County, Texas. It was in force for 50 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: Aug 7, 2016, 2:25 PM CDT (19:25 UTC)
Expired: Aug 7, 2016, 3:15 PM CDT
In force: 50 min
Issued by: NWS Amarillo, TX

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 79 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 80 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: 369 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 2068 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

425 
WWUS84 KAMA 071925
SPSAMA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
225 PM CDT SUN AUG 7 2016
 
TXZ011-072015-
OLDHAM TX-
225 PM CDT SUN AUG 7 2016

...SIGNIFICANT WEATHER ADVISORY FOR OLDHAM COUNTY UNTIL 315 PM CDT...

AT 225 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES NORTHEAST OF ADRIAN...OR 11 MILES NORTHWEST OF VEGA...MOVING
NORTHEAST AT 20 MPH.

DIME SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
VEGA...ADRIAN AND BOYS RANCH. 

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 3563 10272 3563 10216 3532 10217 3518 10252
      3519 10259 3543 10297
TIME...MOT...LOC 1925Z 212DEG 18KT 3538 10253 

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 3:11 PM CDT	Special Weather Statement	AMA	Potter	64 min
Aug 7, 3:16 PM CDT	Special Weather Statement	AMA	Oldham	59 min
Aug 7, 3:17 PM CDT	Special Weather Statement	AMA	Roberts	58 min
Aug 7, 3:50 PM CDT	Special Weather Statement	AMA	Potter	55 min
Aug 7, 3:52 PM CDT	Special Weather Statement	AMA	Oldham	38 min
Aug 7, 3:59 PM CDT	Special Weather Statement	AMA	Lipscomb	61 min
Aug 7, 4:24 PM CDT	Special Weather Statement	AMA	Roberts	66 min
Aug 7, 4:57 PM CDT	Special Weather Statement	AMA	Hansford	63 min
Aug 7, 5:07 PM CDT	Special Weather Statement	AMA	Hansford	53 min
Aug 7, 6:14 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	46 min
Aug 6, 7:48 PM CDT	Special Weather Statement	AMA	Cimarron	57 min
Aug 6, 8:37 PM CDT	Special Weather Statement	AMA	Cimarron	53 min
Aug 6, 8:53 PM CDT	Special Weather Statement	AMA	Cimarron	37 min
Aug 6, 9:27 PM CDT	Special Weather Statement	AMA	Cimarron	63 min
Aug 6, 9:28 PM CDT	Special Weather Statement	AMA	Cimarron	47 min
Aug 6, 10:51 PM CDT	Special Weather Statement	AMA	Texas	39 min
Aug 7, 4:42 PM CDT	Special Weather Statement	AMA	Beaver	63 min
Aug 7, 5:35 PM CDT	Special Weather Statement	AMA	Beaver	40 min
Aug 7, 6:08 PM CDT	Special Weather Statement	AMA	Beaver	52 min

Nearby

Special Weather Statements in Texas, 2016 Every special weather statement in 2016

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.