Alert archive / Oklahoma / Tornado Warnings in 2016

Tornado Warning 2, NWS Amarillo, TX

April 15, 2016Cimarron County, Texas County, Oklahoma; Dallam County, Sherman County, Texas

NWS Amarillo, TX issued this tornado warning at Apr 15, 2016, 6:52 PM CDT for Cimarron County, Texas County, Oklahoma; Dallam County, Sherman County, Texas. It was in force for 23 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: Apr 15, 2016, 6:52 PM CDT (23:52 UTC)
Expired: Apr 15, 2016, 7:15 PM CDT
In force: 23 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.75 in

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 134 km from the middle of the area, began a volume at 23:52 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
Apr 15, 6:59 PM CDT	HAIL 1.75	3 Nw Stratford, TX	HAIL TO THE SIZE OF GOLF BALLS FELL NORTHWEST OF STRATFORD.

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
Apr 15, 2:57 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.9 hours before the alert went out and 134 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1416 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 293 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

312 
WFUS54 KAMA 152352
TORAMA
OKC025-139-TXC111-421-160015-
/O.NEW.KAMA.TO.W.0002.160415T2352Z-160416T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
652 PM CDT FRI APR 15 2016

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CIMARRON COUNTY IN THE PANHANDLE OF OKLAHOMA...
  SOUTHWESTERN TEXAS COUNTY IN THE PANHANDLE OF OKLAHOMA...
  EAST CENTRAL DALLAM COUNTY IN THE PANHANDLE OF TEXAS...
  NORTHWESTERN SHERMAN COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 715 PM CDT
    
* AT 651 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED OVER STRATFORD...MOVING NORTHEAST AT 40 MPH.

  HAZARD...TORNADO AND BASEBALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  STRATFORD AND TEXHOMA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER
AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3626 10205 3638 10228 3664 10203 3650 10177
TIME...MOT...LOC 2351Z 220DEG 33KT 3636 10211 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

CE

1 follow-up statement

362 
WWUS54 KAMA 160000
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
700 PM CDT FRI APR 15 2016

TXC111-160009-
/O.CAN.KAMA.TO.W.0002.000000T0000Z-160416T0015Z/
DALLAM TX-
700 PM CDT FRI APR 15 2016

...THE TORNADO WARNING FOR EAST CENTRAL DALLAM COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT.

LAT...LON 3650 10177 3635 10209 3642 10216 3647 10216
      3664 10203
TIME...MOT...LOC 2359Z 219DEG 29KT 3640 10207 

$$

OKC025-139-TXC421-160015-
/O.CON.KAMA.TO.W.0002.000000T0000Z-160416T0015Z/
CIMARRON OK-TEXAS OK-SHERMAN TX-
700 PM CDT FRI APR 15 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN CIMARRON...SOUTHWESTERN TEXAS AND NORTHWESTERN SHERMAN
COUNTIES...
    
AT 659 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTH OF STRATFORD...MOVING NORTHEAST AT 35 MPH.

HAZARD...TORNADO AND BASEBALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IMPACTED INCLUDE...
TEXHOMA.

LAT...LON 3650 10177 3635 10209 3642 10216 3647 10216
      3664 10203
TIME...MOT...LOC 2359Z 219DEG 29KT 3640 10207 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

CE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 3:12 PM CDT	Flash Flood Watch	AMA	Beaver	13 hr
Apr 15, 4:15 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	45 min
Apr 15, 5:27 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	48 min
Apr 15, 6:14 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	46 min
Apr 15, 6:24 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	66 min
Apr 15, 3:36 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	39 min
Apr 15, 3:53 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	52 min
Apr 15, 4:44 PM CDT	Severe Thunderstorm Warning	AMA	Hartley	61 min
Apr 15, 4:50 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	28 min
Apr 15, 5:15 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	60 min
Apr 15, 5:36 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	41 min
Apr 15, 5:49 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	56 min
Apr 15, 5:55 PM CDT	Tornado Warning	AMA	Dallam, Hartley	25 min

Nearby

Tornado Warnings in Oklahoma, 2016 Tornado Warnings in Texas, 2016 Every tornado warning in 2016 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.