Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 39, NWS Amarillo, TX

May 23, 2007Roberts County, Texas

NWS Amarillo, TX issued this tornado warning at May 23, 2007, 5:00 PM CDT for Roberts County, Texas. It was in force for 45 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: May 23, 2007, 5:00 PM CDT (22:00 UTC)
Expired: May 23, 2007, 5:45 PM CDT
In force: 45 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Roberts County, TX

The radar

The Amarillo radar (KAMA), 111 km from the middle of the area, began a volume at 22:01 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
May 23, 5:05 PM CDT	TSTM WND GST 60	26 S Perryton, TX	60 MPH WIND AT CANADIAN RIVER BRIDGE ON HWY70.
May 23, 5:18 PM CDT	HAIL 1.75	23 Nw Miami, TX	HALF DOLLAR TO GOLFBALL SIZE HAIL

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
May 23, 3:31 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.0 hours before the alert went out and 110 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: 16 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 726 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KAMA 232200
TORAMA
TXC393-232245-
/O.NEW.KAMA.TO.W.0039.070523T2200Z-070523T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
500 PM CDT WED MAY 23 2007

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ROBERTS COUNTY IN THE PANHANDLE OF TEXAS

* UNTIL 545 PM CDT

* AT 456 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EXTREME
  NORTH CENTRAL ROBERTS COUNTY...OR ABOUT 24 MILES SOUTHEAST OF
  SPEARMAN...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF THE INDICATED COUNTY...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

LAT...LON 3592 10083 3593 10086 3593 10094 3595 10096
      3595 10104 3596 10105 3605 10105 3605 10068
      3606 10064

$$

KRAMAR

2 follow-up statements

000 
WWUS54 KAMA 232205
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
502 PM CDT WED MAY 23 2007

TXC393-232245-
/O.CON.KAMA.TO.W.0039.000000T0000Z-070523T2245Z/
ROBERTS TX-
502 PM CDT WED MAY 23 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTH
CENTRAL ROBERTS COUNTY...

AT 501 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS
LOCATED OVER NORTH CENTRAL ROBERTS COUNTY...OR ABOUT 22 MILES
SOUTHEAST OF SPEARMAN...MOVING NORTHEAST AT 20 MPH.

A SECOND AREA OF ROTATION IS ALSO INDICATED TO THE SOUTHWEST OF THE
MAIN STORM. 

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWEST ROBERTS COUNTY...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

LAT...LON 3592 10083 3593 10086 3593 10094 3595 10096
      3595 10104 3596 10105 3605 10105 3605 10068
      3606 10064

$$

RTW

000 
WWUS54 KAMA 232220
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
518 PM CDT WED MAY 23 2007

TXC393-232245-
/O.CON.KAMA.TO.W.0039.000000T0000Z-070523T2245Z/
ROBERTS TX-
518 PM CDT WED MAY 23 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTH
CENTRAL ROBERTS COUNTY...

AT 513 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS STORM WAS
LOCATED OVER NORTH CENTRAL ROBERTS COUNTY...OR ABOUT 24 MILES
SOUTHEAST OF SPEARMAN...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF ROBERTS COUNTY...


TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

LAT...LON 3592 10083 3593 10086 3593 10094 3595 10096
      3595 10104 3596 10105 3605 10105 3605 10068
      3606 10064

$$

RTW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:50 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	55 min
May 23, 4:07 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	53 min
May 23, 4:25 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	65 min
May 23, 4:31 PM CDT	Tornado Warning	AMA	Roberts	29 min
May 23, 4:36 PM CDT	Tornado Warning	AMA	Lipscomb	24 min
May 23, 4:50 PM CDT	Tornado Warning	AMA	Ochiltree	40 min
May 23, 5:28 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	62 min
May 23, 5:32 PM CDT	Tornado Warning	AMA	Ochiltree	43 min
May 23, 5:37 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	53 min
May 23, 5:46 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	59 min
May 23, 5:54 PM CDT	Tornado Warning	AMA	Lipscomb	51 min
May 23, 6:03 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	57 min
May 23, 6:24 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	66 min
May 23, 6:26 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	64 min
May 23, 6:46 PM CDT	Tornado Warning	AMA	Hutchinson	44 min
May 23, 6:49 PM CDT	Tornado Warning	AMA	Ochiltree	41 min

Nearby

Tornado Warnings in Texas, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.