Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 220, NWS Amarillo, TX

July 12, 2016Armstrong County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 12, 2016, 7:20 PM CDT for Armstrong County, Randall County, Texas. It was in force for 55 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 12, 2016, 7:20 PM CDT (00:20 UTC)
Expired: Jul 12, 2016, 8:15 PM CDT
In force: 55 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Armstrong County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 38 km from the middle of the area, began a volume at 00:23 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.3 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: 415 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 3237 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

667 
WUUS54 KAMA 130020
SVRAMA
TXC011-381-130115-
/O.NEW.KAMA.SV.W.0220.160713T0020Z-160713T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
720 PM CDT TUE JUL 12 2016

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ARMSTRONG COUNTY IN THE PANHANDLE OF TEXAS...
  SOUTHEASTERN RANDALL COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 815 PM CDT

* AT 720 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER PALO DURO
  CANYON...OR 15 MILES EAST OF CANYON...MOVING EAST AT 15 MPH.

  HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT SOME TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE 
           HOMES...ROOFS...AND OUTBUILDINGS. HAIL DAMAGE TO VEHICLES 
           IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  CLAUDE AND PALO DURO CANYON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3479 10171 3496 10179 3514 10136 3489 10125
TIME...MOT...LOC 0020Z 248DEG 13KT 3491 10167 

HAIL...1.00IN
WIND...70MPH
 
$$

SCHNEIDER

3 follow-up statements

977 
WWUS54 KAMA 130036
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
736 PM CDT TUE JUL 12 2016

TXC381-130045-
/O.CAN.KAMA.SV.W.0220.000000T0000Z-160713T0115Z/
RANDALL TX-
736 PM CDT TUE JUL 12 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RANDALL COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3490 10163 3501 10163 3514 10136 3493 10127
      3484 10159
TIME...MOT...LOC 0035Z 243DEG 19KT 3495 10157 

$$

TXC011-130115-
/O.CON.KAMA.SV.W.0220.000000T0000Z-160713T0115Z/
ARMSTRONG TX-
736 PM CDT TUE JUL 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN ARMSTRONG COUNTY...

AT 735 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES EAST OF
PALO DURO CANYON...OR 15 MILES SOUTHWEST OF CLAUDE...MOVING
NORTHEAST AT 20 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT SOME TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. HAIL DAMAGE TO VEHICLES IS 
         EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
CLAUDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3490 10163 3501 10163 3514 10136 3493 10127
      3484 10159
TIME...MOT...LOC 0035Z 243DEG 19KT 3495 10157 

HAIL...1.00IN
WIND...70MPH
 
$$

SCHNEIDER

666 
WWUS54 KAMA 130050
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
750 PM CDT TUE JUL 12 2016

TXC011-130115-
/O.CON.KAMA.SV.W.0220.000000T0000Z-160713T0115Z/
ARMSTRONG TX-
750 PM CDT TUE JUL 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN ARMSTRONG COUNTY...

AT 750 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST
OF CLAUDE...MOVING NORTHEAST AT 20 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT SOME TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. HAIL DAMAGE TO VEHICLES IS 
         EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
CLAUDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3488 10150 3502 10161 3514 10136 3496 10128
TIME...MOT...LOC 0050Z 236DEG 16KT 3500 10149 

HAIL...1.00IN
WIND...70MPH
 
$$

SCHNEIDER

174 
WWUS54 KAMA 130101
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
801 PM CDT TUE JUL 12 2016

TXC011-130115-
/O.CON.KAMA.SV.W.0220.000000T0000Z-160713T0115Z/
ARMSTRONG TX-
801 PM CDT TUE JUL 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL ARMSTRONG COUNTY...

AT 801 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHWEST
OF CLAUDE...MOVING NORTHEAST AT 20 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT SOME TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. HAIL DAMAGE TO VEHICLES IS 
         EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
CLAUDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3490 10145 3504 10156 3514 10136 3496 10128
TIME...MOT...LOC 0101Z 236DEG 16KT 3503 10145 

HAIL...1.00IN
WIND...70MPH
 
$$

SCHNEIDER

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 12, 5:47 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jul 12, 5:47 PM CDT, 1 hour 33 minutes before

Area Forecast Discussion
National Weather Service Amarillo TX
547 PM CDT TUE JUL 12 2016

.AVIATION...
00Z TAF Cycle

A frontal boundary across the eastern Panhandles and surface trough
across the western Panhandles along with surface heating and low
level moisture will allow for the possibility of isolated convection
this evening. The Amarillo TAF site has the most likely chance for
convection and included a TEMPO group from 00Z to 04Z Wednesday. Low
confidence at the Dalhart and Guymon TAF sites and left out for now.
VFR conditions expected through 00Z Thursday. East and southeast
winds will veer around to the south and southwest 5 to 15 knots with
some 15 to 25 knots at the Amarillo TAF site after 02Z to 04Z
Wednesday with some higher gusts possible. Winds should veer more to
the west and northwest after 14Z to 16Z Wednesday after the surface
trough move east across the TAF sites.

Schneider

&&

.PREV DISCUSSION... /Issued 330 PM CDT TUE JUL 12 2016/

DISCUSSION...
Isolated showers and thunderstorms will be possible through this
evening along a front which has stalled across the eastern Texas
Panhandle. More showers and thunderstorms may be possible across the
northern CWA as convection forms over southeast Colorado and
northeast New Mexico and heads this way in the westerly flow aloft.

A surface trough will set up across the eastern CWA and the
southwest winds behind it should help temperatures warm back up into
the 98 to 108 range again. This surface trough should be another
focus for shower and thunderstorm development Wednesday afternoon
and Wednesday night.

Shower and thunderstorm chances go up Thursday through Friday night
as a cold front moves into the area and then stalls.

The weather then starts to dry out for the rest of the forecast as
an upper level ridge builds over the region.

&&

.AMA Watches/Warnings/Advisories...
TX...None.
OK...None.

&&

11/10

Hazardous weather outlook, Jul 12, 3:39 PM CDT, 3 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
339 PM CDT TUE JUL 12 2016

OKZ001>003-TXZ001>020-130845-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
339 PM CDT TUE JUL 12 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE POSSIBLE ACROSS THE OKLAHOMA PANHANDLE AND THE
NORTHERN AND EASTERN TEXAS PANHANDLE THIS EVENING. A FEW OF THESE
STORMS COULD BECOME STRONG TO MARGINALLY SEVERE WITH WIND GUSTS UP TO
60 MPH AND HAIL UP TO THE SIZE OF QUARTERS BEING THE PRIMARY HAZARDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS WILL BE POSSIBLE ACROSS PARTS OF THE OKLAHOMA AND TEXAS
PANHANDLES WEDNESDAY THROUGH SATURDAY. A FEW STORMS THAT DEVELOP
WILL HAVE THE POTENTIAL TO BECOME STRONG TO MARGINALLY SEVERE...WITH
HAIL UP TO THE SIZE OF QUARTERS AND WIND GUSTS TO AROUND 60 MPH THE
PRIMARY HAZARDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Local storm report, Jul 12, 5:20 PM CDT, 2 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
520 PM CDT TUE JUL 12 2016

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

0800 PM     WILDFIRE         17 NNW CODMAN           35.86N 100.91W
07/11/2016  E11250 ACRE      ROBERTS            TX   FOREST SERVICE

            THE CHISUM RANCH WILDFIRE IS STILL ONGOING AND HAS NOT
            BEEN CONTAINED OR BROUGHT UNDER CONTROL. THERE IS NO
            INFORMATION ON ANY DAMAGES TO HOMES OR OTHER STRUCTURES.
            THERE HAS ALSO BEEN NO INFORMATION ON ANY INJURIES OR
            FATALITIES. THE TEXAS AANDM FOREST SERVICE ALONG WITH
            ROBERTS COUNTY FD AND BORGER FD HAVE RESPONDED TO THIS
            WILDFIRE.

&&

EVENT NUMBER AMA1600608

KJS

Special weather statement, Jul 12, 5:51 PM CDT, 1 hour 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
551 PM CDT TUE JUL 12 2016

TXZ017-018-122345-
ARMSTRONG TX-RANDALL TX-
551 PM CDT TUE JUL 12 2016

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL ARMSTRONG AND
NORTHEASTERN RANDALL COUNTIES UNTIL 645 PM CDT...

AT 551 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
PALO DURO CANYON...OR 14 MILES EAST OF CANYON...MOVING NORTHEAST AT 5
MPH.

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

LOCATIONS IMPACTED INCLUDE...
PALO DURO CANYON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER IN A STURDY BUILDING IF THREATENING WEATHER APPROACHES.

&&

LAT...LON 3484 10163 3494 10181 3517 10167 3501 10141
TIME...MOT...LOC 2251Z 216DEG 5KT 3495 10167

SCHNEIDER

Special weather statement, Jul 12, 6:09 PM CDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
609 PM CDT TUE JUL 12 2016

TXZ013-018-130015-
ARMSTRONG TX-CARSON TX-
609 PM CDT TUE JUL 12 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN ARMSTRONG AND
SOUTHEASTERN CARSON COUNTIES UNTIL 715 PM CDT...

AT 609 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
CLAUDE...MOVING EAST AT 10 MPH.

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

LOCATIONS IMPACTED INCLUDE...
CLAUDE...GROOM AND GOODNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER IN A STURDY BUILDING IF THREATENING WEATHER APPROACHES.

&&

LAT...LON 3503 10148 3521 10145 3522 10109 3512 10109
      3495 10111
TIME...MOT...LOC 2309Z 276DEG 8KT 3512 10138

SCHNEIDER

Special weather statement, Jul 12, 6:56 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
656 PM CDT TUE JUL 12 2016

TXZ017-018-130100-
ARMSTRONG TX-RANDALL TX-
656 PM CDT TUE JUL 12 2016

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL ARMSTRONG AND
SOUTHEASTERN RANDALL COUNTIES UNTIL 800 PM CDT...

AT 656 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5
MILES NORTHWEST OF HAPPY...OR 12 MILES SOUTH OF CANYON...MOVING
NORTHEAST AT 20 MPH.

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

LOCATIONS IMPACTED INCLUDE...
PALO DURO CANYON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER IN A STURDY BUILDING IF THREATENING WEATHER APPROACHES.

&&

LAT...LON 3475 10198 3482 10206 3515 10167 3494 10146
      3475 10180
TIME...MOT...LOC 2356Z 229DEG 17KT 3480 10192

SCHNEIDER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 8:15 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	45 min
Jul 12, 8:41 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray	64 min
Jul 12, 9:44 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Wheeler	36 min
Jul 13, 4:14 AM CDT	Heat Advisory	AMA	Armstrong, Carson, Dallam, Deaf Smith, Gray, Hansford and 9 more	16 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every severe thunderstorm warning 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.