Alert archive / Texas / Tornado Warnings in 2016

Tornado Warning 1, NWS Amarillo, TX

April 15, 2016Dallam County, Hartley County, Texas

NWS Amarillo, TX issued this tornado warning at Apr 15, 2016, 5:55 PM CDT for Dallam County, Hartley County, Texas. It was in force for 25 min. 2 reports 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, 5:55 PM CDT (22:55 UTC)
Expired: Apr 15, 2016, 6:20 PM CDT
In force: 25 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Dallam County, TX, Hartley County, TX

The radar

The Amarillo radar (KAMA), 114 km from the middle of the area, began a volume at 22:54 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, 5:56 PM CDT	HAIL 2.5	1 W Dalhart, TX
Apr 15, 6:20 PM CDT	HAIL 1.75	Dalhart, TX	SPOTTER REPORTED GOLF BALL SIZE HAIL AROUND 620 PM IN DALHART.

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, 10.9 hours before the alert went out and 115 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.

556 
WFUS54 KAMA 152255
TORAMA
TXC111-205-152330-
/O.NEW.KAMA.TO.W.0001.160415T2255Z-160415T2330Z/

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

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL HARTLEY COUNTY IN THE PANHANDLE OF TEXAS...
  SOUTHEASTERN DALLAM COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 630 PM CDT
    
* AT 554 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED OVER DALHART...MOVING NORTHEAST AT 25 MPH.

  HAZARD...TORNADO AND GOLF BALL 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...
  DALHART.

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 3599 10245 3603 10264 3618 10252 3613 10223
TIME...MOT...LOC 2254Z 211DEG 21KT 3603 10251 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

CE

2 follow-up statements

844 
WWUS54 KAMA 152308
SVSAMA

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

TXC205-152317-
/O.CAN.KAMA.TO.W.0001.000000T0000Z-160415T2330Z/
HARTLEY TX-
608 PM CDT FRI APR 15 2016

...THE TORNADO WARNING FOR NORTH CENTRAL HARTLEY 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 3618 10252 3613 10223 3606 10235 3605 10249
      3611 10258
TIME...MOT...LOC 2307Z 211DEG 21KT 3610 10246 

$$

TXC111-152330-
/O.CON.KAMA.TO.W.0001.000000T0000Z-160415T2330Z/
DALLAM TX-
608 PM CDT FRI APR 15 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN DALLAM COUNTY...
    
AT 607 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTHEAST OF DALHART...MOVING NORTHEAST AT 25 MPH.

HAZARD...TORNADO AND GOLF BALL 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...
DALHART.

LAT...LON 3618 10252 3613 10223 3606 10235 3605 10249
      3611 10258
TIME...MOT...LOC 2307Z 211DEG 21KT 3610 10246 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

CE

827 
WWUS54 KAMA 152320
SVSAMA

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

TXC111-152329-
/O.CAN.KAMA.TO.W.0001.000000T0000Z-160415T2330Z/
DALLAM TX-
620 PM CDT FRI APR 15 2016

...THE TORNADO WARNING FOR SOUTHEASTERN DALLAM COUNTY IS CANCELLED...
    
THE TORNADO WARNING HAS BEEN CANCELLED. HOWEVER...LARGE HAIL AND
DAMAGING WINDS REMAIN LIKELY AND A SEVERE THUNDERSTORM WARNING
REMAINS IN EFFECT FOR THE AREA.  

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT.

LAT...LON 3618 10252 3613 10223 3606 10235 3605 10249
      3611 10258
TIME...MOT...LOC 2317Z 211DEG 21KT 3617 10241 

$$

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	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 6 more	13 hr
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, 4:15 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	45 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, 6:24 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	66 min
Apr 15, 6:52 PM CDT	Tornado Warning	AMA	Dallam, Sherman	23 min

Nearby

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.