Alert archive / Oklahoma / Tornado Warnings in 2015

Tornado Warning 41, NWS Amarillo, TX

November 16, 2015Beaver County, Oklahoma

NWS Amarillo, TX issued this tornado warning at Nov 16, 2015, 7:20 PM CST for Beaver County, Oklahoma. 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: Nov 16, 2015, 7:20 PM CST (01:20 UTC)
Expired: Nov 16, 2015, 8:15 PM CST
In force: 55 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Observed
Damage threat: Considerable
Hail: 1.0 in

County Beaver County, OK

The radar

The Dodge City radar (KDDC), 105 km from the middle of the area, began a volume at 01:22 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 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

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 1.3 hours before the alert went out and 108 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: 994 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 812 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 351 m²/s²
0-3 km storm-relative helicity: 399 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 11.3

Open this sounding in Storm Lab

The text

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

263 
WFUS54 KAMA 170120 RRA
TORAMA
OKC007-170215-
/O.NEW.KAMA.TO.W.0041.151117T0120Z-151117T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
720 PM CST MON NOV 16 2015

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA...

* UNTIL 815 PM CST

* AT 720 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO
  WAS LOCATED OVER ELMWOOD...OR 13 MILES SOUTH OF BEAVER...MOVING
  NORTHEAST AT 45 MPH.

  THIS IS A PARTICULARLY DANGEROUS SITUATION. 

  HAZARD...DAMAGING TORNADO. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

  IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS 
           MAY BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE 
           HOMES WILL BE DESTROYED. CONSIDERABLE DAMAGE TO 
           HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE 
           DESTRUCTION IS POSSIBLE. 

* LOCATIONS IMPACTED INCLUDE...
  BEAVER...GATE AND KNOWLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LARGE AND EXTREMELY DANGEROUS TORNADO IS ON THE GROUND. TAKE
IMMEDIATE TORNADO PRECAUTIONS. THIS IS AN EMERGENCY SITUATION.

&&

LAT...LON 3689 10000 3656 10039 3668 10061 3700 10042
      3700 10000
TIME...MOT...LOC 0120Z 211DEG 37KT 3662 10051 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.00IN

$$

SIMPSON

1 follow-up statement

956 
WWUS54 KAMA 170212
SVSAMA

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

OKC007-170222-
/O.EXP.KAMA.TO.W.0041.000000T0000Z-151117T0215Z/
BEAVER OK-
812 PM CST MON NOV 16 2015

...THE TORNADO WARNING FOR EASTERN BEAVER COUNTY WILL EXPIRE AT 815
PM CST...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST.

LAT...LON 3689 10000 3656 10039 3668 10061 3700 10042
      3700 10000
TIME...MOT...LOC 0211Z 211DEG 37KT 3662 10051 

$$

SIMPSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 16, 6:41 PM CST	Severe Thunderstorm Warning	AMA	Beaver	94 min
Nov 16, 6:46 PM CST	Tornado Warning	AMA	Beaver	44 min
Nov 16, 7:01 PM CST	Special Weather Statement	AMA	Texas	44 min
Nov 16, 8:52 PM CST	Tornado Warning	AMA	Beaver	42 min
Nov 16, 9:18 PM CST	Tornado Warning Tornado observed	AMA	Beaver	42 min
Nov 17, 5:33 AM CST	Winter Weather Advisory	AMA	Beaver, Cimarron, Texas	17 hr

Nearby

Tornado Warnings in Oklahoma, 2015 Every tornado warning in 2015 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.