Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 49, NWS Amarillo, TX

April 28, 20164 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Apr 28, 2016, 8:04 PM CDT for 4 counties in Texas. It was in force for 71 min. 7 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 28, 2016, 8:04 PM CDT (01:04 UTC)
Expired: Apr 28, 2016, 9:15 PM CDT
In force: 71 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

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

The radar

The Amarillo radar (KAMA), 66 km from the middle of the area, began a volume at 01:03 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 28, 8:05 PM CDT	TSTM WND DMG	2 Sw Borger, TX	4 INCH DIAMETER TREE BRANCH BROKEN DUE TO THUNDERSTORM WIND AND FELL ON POWER LINE AND IS CAUSING SPARKS
Apr 28, 8:08 PM CDT	HAIL 1.75	Fritch, TX
Apr 28, 8:09 PM CDT	HAIL 1	3 W Borger, TX	IN BUENA VISTA
Apr 28, 8:20 PM CDT	HAIL 1	2 W Borger, TX
Apr 28, 8:28 PM CDT	HAIL 1	3 Ne Borger, TX
Apr 28, 8:30 PM CDT	HAIL 1.75	2 E Borger, TX
Apr 28, 8:34 PM CDT	TSTM WND DMG	Borger, TX	4 INCH BRANCHES BROUGHT DOWN.

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 28, 4:13 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.1 hours before the alert went out and 65 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: 699 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1006 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 462 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 12.4

Open this sounding in Storm Lab

The text

As transmitted.

127 
WUUS54 KAMA 290104
SVRAMA
TXC065-179-233-393-290215-
/O.NEW.KAMA.SV.W.0049.160429T0104Z-160429T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
804 PM CDT THU APR 28 2016

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

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

* UNTIL 915 PM CDT

* AT 803 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SANFORD...OR 6
  MILES WEST OF BORGER...MOVING EAST AT 35 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. HAIL MAY ACCUMULATE ON 
           ROADWAYS CAUSING HAZARDOUS TRAVEL. 

* LOCATIONS IMPACTED INCLUDE...
  PAMPA...BORGER...FRITCH...SKELLYTOWN AND SANFORD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3548 10083 3552 10162 3571 10162 3578 10125
      3578 10084
TIME...MOT...LOC 0103Z 259DEG 29KT 3565 10152 

HAIL...1.25IN
WIND...<50MPH
 
$$

BRB

3 follow-up statements

007 
WWUS54 KAMA 290113
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
813 PM CDT THU APR 28 2016

TXC065-179-233-393-290215-
/O.CON.KAMA.SV.W.0049.000000T0000Z-160429T0215Z/
CARSON TX-ROBERTS TX-GRAY TX-HUTCHINSON TX-
813 PM CDT THU APR 28 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHERN CARSON...SOUTHWESTERN ROBERTS...NORTHWESTERN GRAY AND
SOUTHERN HUTCHINSON COUNTIES...

AT 812 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SANFORD...OR 5
MILES WEST OF BORGER...MOVING EAST AT 25 MPH.

HAZARD...HAIL UP TO GOLF BALL SIZE. 

SOURCE...TRAINED WEATHER SPOTTERS. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE 
         TO ROOFS...SIDING...WINDOWS...AND VEHICLES. HAIL MAY 
         ACCUMULATE ON ROADWAYS CAUSING HAZARDOUS TRAVEL. 

LOCATIONS IMPACTED INCLUDE...
PAMPA...BORGER...FRITCH...SKELLYTOWN AND SANFORD. 

THIS STORM HAS A HISTORY OF HAIL UP TO GOLF BALL SIZE AS IT MOVED
THROUGH FRITCH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3554 10155 3571 10160 3578 10125 3578 10084
      3551 10083
TIME...MOT...LOC 0112Z 263DEG 22KT 3566 10151 

HAIL...1.75IN
WIND...<50MPH
 
$$

BRB

337 
WWUS54 KAMA 290124
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
824 PM CDT THU APR 28 2016

TXC065-179-233-393-290215-
/O.CON.KAMA.SV.W.0049.000000T0000Z-160429T0215Z/
CARSON TX-ROBERTS TX-GRAY TX-HUTCHINSON TX-
824 PM CDT THU APR 28 2016

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

AT 824 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR SANFORD TO 8 MILES NORTHEAST OF BORGER...MOVING
EAST AT 35 MPH.

HAZARD...HAIL UP TO HALF DOLLAR SIZE. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. HAIL MAY ACCUMULATE ON 
         ROADWAYS CAUSING HAZARDOUS TRAVEL. 

LOCATIONS IMPACTED INCLUDE...
PAMPA...BORGER...SKELLYTOWN AND SANFORD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3555 10083 3555 10140 3572 10157 3578 10125
      3578 10084
TIME...MOT...LOC 0124Z 250DEG 28KT 3569 10149 3574 10128 

HAIL...1.25IN
WIND...<50MPH
 
$$

BRB

074 
WWUS54 KAMA 290150
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
850 PM CDT THU APR 28 2016

TXC065-179-233-393-290215-
/O.CON.KAMA.SV.W.0049.000000T0000Z-160429T0215Z/
CARSON TX-ROBERTS TX-GRAY TX-HUTCHINSON TX-
850 PM CDT THU APR 28 2016

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

AT 849 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SKELLYTOWN TO 17 MILES NORTHWEST OF PAMPA...MOVING EAST
AT 25 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS POSSIBLE. HAIL MAY ACCUMULATE ON
         ROADWAYS CAUSING HAZARDOUS TRAVEL. 

LOCATIONS IMPACTED INCLUDE...
PAMPA AND SKELLYTOWN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3560 10145 3568 10128 3578 10119 3578 10084
      3555 10083 3555 10140
TIME...MOT...LOC 0149Z 257DEG 22KT 3559 10117 3576 10111 

HAIL...1.00IN
WIND...<50MPH
 
$$

BRB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:15 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	51 min
Apr 28, 8:00 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	75 min
Apr 28, 8:44 PM CDT	Special Weather Statement	AMA	Donley	31 min
Apr 28, 9:10 PM CDT	Special Weather Statement	AMA	Donley	35 min
Apr 28, 9:16 PM CDT	Special Weather Statement	AMA	Roberts	29 min
Apr 28, 9:18 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	42 min
Apr 28, 9:21 PM CDT	Special Weather Statement	AMA	Wheeler	24 min
Apr 28, 9:41 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill	64 min
Apr 28, 9:44 PM CDT	Special Weather Statement	AMA	Collingsworth	31 min
Apr 28, 10:21 PM CDT	Special Weather Statement	AMA	Hutchinson	24 min
Apr 28, 11:02 PM CDT	Special Weather Statement	AMA	Dallam	28 min
Apr 28, 11:31 PM CDT	Special Weather Statement	AMA	Dallam	44 min
Apr 28, 11:43 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	47 min
Apr 29, 12:25 AM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	39 min
Apr 29, 1:02 AM CDT	Severe Thunderstorm Warning	AMA	Sherman	43 min
Apr 29, 1:39 AM CDT	Severe Thunderstorm Warning	AMA	Hansford, Sherman	26 min
Apr 29, 2:22 AM CDT	Special Weather Statement	AMA	Moore	38 min
Apr 29, 2:42 AM CDT	Special Weather Statement	AMA	Moore	48 min
Apr 29, 2:53 AM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	52 min
Apr 29, 3:21 AM CDT	Special Weather Statement	AMA	Hansford, Moore, Sherman	39 min
Apr 29, 3:50 AM CDT	Special Weather Statement	AMA	Ochiltree	55 min
Apr 29, 3:59 AM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	21 min
Apr 29, 4:07 AM CDT	Special Weather Statement	AMA	Hutchinson, Moore	38 min
Apr 29, 5:02 AM CDT	Special Weather Statement	AMA	Potter, Randall	43 min
Apr 29, 6:27 AM CDT	Special Weather Statement	AMA	Carson	48 min
Apr 29, 6:36 AM CDT	Special Weather Statement	AMA	Oldham	24 min
Apr 29, 7:36 AM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.