Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 252, NWS Amarillo, TX

November 16, 20155 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Nov 16, 2015, 8:28 PM CST for 5 counties in Texas. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Nov 16, 2015, 8:28 PM CST (02:28 UTC)
Expired: Nov 16, 2015, 9:15 PM CST
In force: 47 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Carson County, TX, Gray County, TX, Hutchinson County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Amarillo radar (KAMA), 86 km from the middle of the area, began a volume at 02:28 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.

What was reported inside it

Time	Report	Where	Remark
Nov 16, 8:28 PM CST	TORNADO	12 Sw Wolf Creek Park, TX	SPOTTER REPORTED TORNADO ON THE GROUND CROSSING HIGHWAY 70 SOUTHWEST OF WOLF CREEK PARK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 16, 1:00 PM CST	Tornado Watch	SPC	8 hr
Nov 16, 8:17 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.5 hours before the alert went out and 86 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: 345 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1692 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 280 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

497 
WUUS54 KAMA 170228
SVRAMA
TXC065-179-233-357-393-170315-
/O.NEW.KAMA.SV.W.0252.151117T0228Z-151117T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
828 PM CST MON NOV 16 2015

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GRAY COUNTY IN THE PANHANDLE OF TEXAS...
  EASTERN HUTCHINSON COUNTY IN THE PANHANDLE OF TEXAS...
  NORTHERN CARSON COUNTY IN THE PANHANDLE OF TEXAS...
  SOUTHERN OCHILTREE COUNTY IN THE PANHANDLE OF TEXAS...
  ROBERTS COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 915 PM CST

* AT 828 PM CST...SEVERE THUNDERSTORMS WERE LOCATED EXTENDING FROM 15
  MILES SOUTH OF SPEARMAN TO 9 MILES NORTH OF PANHANDLE...MOVING
  NORTHEAST AT 60 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED.  MINOR WIND DAMAGE 
           TO ROOFS...SIDING AND TREES IS POSSIBLE. 

* LOCATIONS IMPACTED INCLUDE...
  PAMPA...WHITE DEER...SKELLYTOWN AND KINGSMILL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR CENTRAL TEXAS.

LAT...LON 3541 10099 3537 10154 3605 10114 3605 10109
      3607 10108 3619 10055
TIME...MOT...LOC 0228Z 238DEG 53KT 3598 10114 3547 10144 

HAIL...1.00IN
WIND...60MPH
 
$$

SIMPSON

2 follow-up statements

712 
WWUS54 KAMA 170255
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
855 PM CST MON NOV 16 2015

TXC065-179-233-357-393-170315-
/O.CON.KAMA.SV.W.0252.000000T0000Z-151117T0315Z/
GRAY TX-HUTCHINSON TX-CARSON TX-OCHILTREE TX-ROBERTS TX-
855 PM CST MON NOV 16 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR NORTHWESTERN GRAY...SOUTHEASTERN HUTCHINSON...NORTHEASTERN
CARSON...SOUTHERN OCHILTREE AND ROBERTS COUNTIES...

AT 854 PM CST...SEVERE THUNDERSTORMS WERE LOCATED EXTENDING FROM 17
MILES SOUTHEAST OF WAKA TO NEAR WHITE DEER...MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED.  MINOR WIND DAMAGE TO 
         ROOFS...SIDING AND TREES IS POSSIBLE. 

LOCATIONS IMPACTED INCLUDE...
PAMPA...WHITE DEER...SKELLYTOWN AND KINGSMILL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST.

LAT...LON 3541 10099 3538 10141 3607 10108 3619 10055
TIME...MOT...LOC 0254Z 251DEG 31KT 3605 10092 3544 10125 

HAIL...1.00IN
WIND...60MPH
 
$$

SIMPSON

523 
WWUS54 KAMA 170312
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
912 PM CST MON NOV 16 2015

TXC065-179-233-357-393-170322-
/O.EXP.KAMA.SV.W.0252.000000T0000Z-151117T0315Z/
GRAY TX-HUTCHINSON TX-CARSON TX-OCHILTREE TX-ROBERTS TX-
912 PM CST MON NOV 16 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GRAY...
SOUTHEASTERN HUTCHINSON...NORTHEASTERN CARSON...SOUTHERN OCHILTREE
AND ROBERTS COUNTIES WILL EXPIRE AT 915 PM CST...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST.

LAT...LON 3541 10099 3538 10141 3607 10108 3619 10055
TIME...MOT...LOC 0312Z 238DEG 53KT 3605 10092 3544 10125 

$$

SIMPSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 16, 6:06 PM CST	Tornado Warning	AMA	Carson, Gray	24 min
Nov 16, 6:09 PM CST	Severe Thunderstorm Warning	AMA	Dallam, Deaf Smith, Hartley, Moore, Oldham, Potter and 1 more	66 min
Nov 16, 6:19 PM CST	Severe Thunderstorm Warning	AMA	Potter, Randall	41 min
Nov 16, 6:25 PM CST	Tornado Warning Tornado observed	AMA	Gray	35 min
Nov 16, 6:41 PM CST	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	94 min
Nov 16, 6:46 PM CST	Tornado Warning	AMA	Lipscomb, Ochiltree	44 min
Nov 16, 6:46 PM CST	Tornado Warning	AMA	Carson, Gray	29 min
Nov 16, 6:50 PM CST	Tornado Warning Considerable damage threat	AMA	Gray, Hemphill, Roberts	40 min
Nov 16, 7:01 PM CST	Special Weather Statement	AMA	Hansford	44 min
Nov 16, 7:04 PM CST	Tornado Warning Tornado observedConsiderable damage threat	AMA	Gray	26 min
Nov 16, 7:16 PM CST	Tornado Warning	AMA	Carson, Hutchinson	44 min
Nov 16, 7:20 PM CST	Tornado Warning Tornado observedConsiderable damage threat	AMA	Hemphill, Roberts	40 min
Nov 16, 7:23 PM CST	Tornado Warning Tornado observedConsiderable damage threat	AMA	Roberts	52 min
Nov 16, 7:24 PM CST	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Moore, Ochiltree and 3 more	66 min
Nov 16, 7:37 PM CST	Severe Thunderstorm Warning	AMA	Armstrong, Randall	53 min
Nov 16, 7:37 PM CST	Severe Thunderstorm Warning	AMA	Carson, Potter	53 min
Nov 16, 7:51 PM CST	Tornado Warning Tornado observed	AMA	Hemphill, Lipscomb	54 min
Nov 16, 7:55 PM CST	Tornado Warning	AMA	Hutchinson, Ochiltree, Roberts	35 min
Nov 16, 7:57 PM CST	Tornado Warning	AMA	Carson, Potter	21 min
Nov 16, 8:19 PM CST	Tornado Warning	AMA	Ochiltree, Roberts	41 min
Nov 16, 8:31 PM CST	Severe Thunderstorm Warning	AMA	Armstrong	44 min
Nov 16, 8:39 PM CST	Tornado Warning	AMA	Lipscomb	36 min
Nov 16, 8:52 PM CST	Tornado Warning	AMA	Lipscomb, Ochiltree	42 min
Nov 16, 8:57 PM CST	Severe Thunderstorm Warning	AMA	Carson, Gray	33 min
Nov 16, 9:03 PM CST	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	47 min
Nov 16, 9:18 PM CST	Tornado Warning Tornado observed	AMA	Lipscomb	42 min
Nov 16, 9:22 PM CST	Severe Thunderstorm Warning	AMA	Gray	18 min
Nov 17, 5:16 AM CST	Wind Advisory	AMA	Armstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 7 more	13 hr
Nov 17, 5:33 AM CST	Winter Weather Advisory	AMA	Dallam, Hansford, Hartley, Sherman	17 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.