Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 147, NWS Amarillo, TX

May 23, 2007Lipscomb County, Texas; Beaver County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at May 23, 2007, 8:17 PM CDT for Lipscomb County, Texas; Beaver County, Oklahoma. It was in force for 58 min. 3 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, 8:17 PM CDT (01:17 UTC)
Expired: May 23, 2007, 9:15 PM CDT
In force: 58 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

Counties Beaver County, OK, Lipscomb County, TX

The radar

The Dodge City radar (KDDC), 150 km from the middle of the area, began a volume at 01:17 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
May 23, 8:20 PM CDT	HAIL 1	Darrouzett, TX
May 23, 8:38 PM CDT	HAIL 1	6 Sw Darrouzett, TX
May 23, 8:45 PM CDT	HAIL 1	1 S Logan, OK

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 3 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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

Dodge City, (KDDC), launched 00:00Z, 1.3 hours before the alert went out and 153 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: 879 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1377 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KAMA 240118
SVRAMA
OKC007-TXC295-240215-
/O.NEW.KAMA.SV.W.0147.070524T0117Z-070524T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
817 PM CDT WED MAY 23 2007

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA
  NORTHERN LIPSCOMB COUNTY IN THE PANHANDLE OF TEXAS

* UNTIL 915 PM CDT

* AT 813 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL AND   
  DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR    
  DARROUZETT...OR ABOUT 12 MILES NORTH OF LIPSCOMB...MOVING          
  NORTHEAST AT 20 MPH.  ANOTHER POTENTIALLY SEVERE THUNDERSTORM IS   
  LOCATED NEAR PERRYTON...ALSO MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DARROUZETT...
  SLAPOUT...
  FOLLETT...
  BOOKER...
  ELMWOOD...
  BRYANS CORNER...

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

LAT...LON 3628 10054 3649 10054 3650 10055 3650 10094
      3676 10094 3678 10000 3628 10001

$$

JOHNSON

1 follow-up statement

000 
WWUS54 KAMA 240148
SVSAMA

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

OKC007-TXC295-240215-
/O.CON.KAMA.SV.W.0147.000000T0000Z-070524T0215Z/
BEAVER OK-LIPSCOMB TX-
847 PM CDT WED MAY 23 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHWESTERN LIPSCOMB AND SOUTHERN BEAVER COUNTIES...

AT 843 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED 7 MILES SOUTHWEST OF SLAPOUT...OR ABOUT 21 
MILES NORTH OF LIPSCOMB...MOVING NORTHEAST AT 20 MPH.  ADDITIONAL 
POTENTIALLY SEVERE THUNDERSTORMS WERE LOCATED NEAR BOOKER AND NEAR 
PERRYTON.  THESE STORMS ARE ALSO MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SLAPOUT...
  ELMWOOD...
  BEAVER...
  BRYANS CORNER...

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

LAT...LON 3638 10054 3649 10054 3650 10055 3650 10094
      3687 10095 3678 10000 3656 10001

$$

JOHNSON

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 23, 6:37 PM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, May 23, 6:37 PM CDT, 1 hour 40 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
637 PM CDT WED MAY 23 2007

.AVIATION...
SEVERAL BOUNDARIES WILL PROVIDE THE FOCUS FOR THUNDERSTORMS THIS
EVENING AND INTO TONIGHT. THUNDERSTORM COVERAGE WILL INCREASE...AND
WILL LIKELY CREATE PROBLEMS FOR APPROACHING AND DEPARTING
FLIGHTS...ESPECIALLY AT KAMA. COLD FRONT WILL PUSH THROUGH LATE
TONIGHT AND WILL PUSH THE MOISTURE EAST...ENDING THE POTENTIAL FOR
SHOWERS AND THUNDERSTORMS FROM WEST TO EAST ACROSS THE PANHANDLES.

NUNEZ

&&

.PREV DISCUSSION... /ISSUED 235 PM CDT WED MAY 23 2007/

DISCUSSION...
MAIN WEATHER FOCUS WILL BE TONIGHT AS RETREATING FRONTAL BOUNDARY
WILL ALLOW MOIST AND UNSTABLE AIR TO SPREAD OVER A LARGE PORTION OF
THE FORECAST AREA LATE THIS AFTERNOON AND TONIGHT. SFC LOW IS
DEVELOPING OVER EAST CENTRAL NEW MEXICO IN RESPONSE TO HEIGHT FALLS
ASSOCIATED WITH APPROACHING SHORTWAVE TROF OVER FOUR CORNERS REGION.
THIS SYSTEM WILL SERVE TO BACK THE WINDS ACROSS THE PANHANDLES...
PRODUCING STRONG LOW LEVEL SHEAR...ENHANCED FURTHER IN THE FRONTAL
ZONE. GIVEN INSTABILITY...STRONG LIFT ENHANCED BY MIDLEVEL JET MAX AT
OR ABOVE 50 KT...AND AMPLE MOISTURE...SEVERE STORMS CAPABLE OF VERY
LARGE HAIL...DAMAGING WIND AND TORNADOES WILL BE POSSIBLE OVER MUCH
OF THE PANHANDLES. THE TORNADO THREAT MAY BE ENHANCED TONIGHT BY THE
PRESENCE OF THE LOWLEVEL JET. STRONGER SURGE OF COLD AIR EXPECTED TO
PENETRATE TONIGHT...AND CURRENT THOUGHTS ARE THAT A MORE LINEAR STORM
SYSTEM WILL ENSUE AS THIS BOUNDARY OVERTAKES THE MOIST AIRMASS...AS
SOMEWHAT OF A SECOND ROUND OF STORMS TONIGHT. WITH THIS IN MIND...HAVE
INCREASED POPS AREAWIDE TONIGHT.

LINGERING POPS IN THE EAST SEEMED REASONABLE TOMORROW MORNING AS
STORMS EXIT THE AREA. FRONT IS LIKELY TO BE ON THE FASTER SIDE...AS
SOUTHWARD MOVEMENT WILL BE ENHANCED BY THE STORMS FORMING ALONG THE
BOUNDARY. THIS FRONT WILL VACATE THE AREA OF DEEP MOISTURE...BUT SOME
PRECIPITATION WILL STILL BE POSSIBLE DURING MUCH OF THE REMAINING
FORECAST PERIODS AS MINOR DISTURBANCES MOVE THROUGH AND MOISTURE
ATTEMPTS TO MAKE A COMEBACK. IN GENERAL...HAVE RETAINED POPS FROM
PREVIOUS FORECAST...WHICH WERE GENERALLY IN LINE WITH CURRENT MEXMOS
NUMBERS.

CONCERNING TEMPERATURES...LOWERED A FEW DEGREES TOMORROW FROM MEXMOS
HIGHS AS CLOUDS AND UPSLOPE FLOW WILL LIKELY LIMIT INSOLATION.
OTHERWISE...MEXMOS NUMBERS SEEMED GENERALLY REASONABLE.

KRAMAR

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
OK...NONE.

&&

24/08

Hazardous weather outlook, May 23, 5:31 PM CDT, 2 hours 46 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
531 PM CDT WED MAY 23 2007

OKZ001>003-TXZ001>020-241100-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
531 PM CDT WED MAY 23 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS EXTENDED TORNADO WATCH
NUMBER 293 TO INCLUDE THE ENTIRE OKLAHOMA AND TEXAS PANHANDLES
THROUGH 11 PM CDT.

SEVERE THUNDERSTORMS ARE LIKELY THROUGH TONIGHT. TORNADOES...
LARGE HAIL AND DAMAGING WINDS ARE ALL POSSIBLE. THE GREATEST
THREAT OF TORNADOES APPEARS TO BE ACROSS THE NORTHERN...CENTRAL AND
EASTERN TEXAS PANHANDLE AND THE OKLAHOMA PANHANDLE GENERALLY
EAST OF U.S. HIGHWAY 287 AND NORTH OF INTERSTATE 40. OTHER THREATS
INCLUDE HEAVY RAIN...CAUSING ISOLATED FLASH FLOODING...AND CLOUD
TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...

THERE WILL BE A SLIGHT CHANCE TO CHANCE OF THUNDERSTORMS ACROSS MOST
OF THE TEXAS AND OKLAHOMA PANHANDLES THURSDAY NIGHT THROUGH TUESDAY
NIGHT. STORMS ARE NOT EXPECTED TO BECOME SEVERE AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS WILL LIKELY
BE CALLED UPON FOR ACTIVATION THROUGH TONIGHT.

NUNEZ

In the hours before

Local storm report, May 23, 7:55 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
755 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0725 PM     HAIL             STINNETT                35.82N 101.44W
05/23/2007  E0.75 INCH       HUTCHINSON         TX   AMATEUR RADIO

            PENNY SIZE HAIL

&&

RN

Local storm report, May 23, 7:56 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
756 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0745 PM     HAIL             10 NNE STINNETT         35.96N 101.37W
05/23/2007  E0.75 INCH       HUTCHINSON         TX   AMATEUR RADIO

            PENNY SIZE HAIL

&&

RN

Local storm report, May 23, 8:02 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
802 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0718 PM     TSTM WND DMG     STINNETT                35.82N 101.44W
05/23/2007                   HUTCHINSON         TX   TRAINED SPOTTER

            ANTENNA AT RESTAURANT BLOWN DOWN

&&

JC

Local storm report, May 23, 8:03 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
803 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0640 PM     TORNADO          13 WSW LIPSCOMB         36.16N 100.49W
05/23/2007                   LIPSCOMB           TX   AMATEUR RADIO

&&

RN

Local storm report, May 23, 8:12 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
812 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0801 PM     HAIL             10 NE PRINGLE           36.05N 101.33W
05/23/2007  E0.75 INCH       HUTCHINSON         TX   AMATEUR RADIO

            FELL ON HUTCHINSON AND HANSFORD COUNTY LINE ON HIGHWAY
            207.

&&

JC

Local storm report, May 23, 8:14 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
814 PM CDT WED MAY 23 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0801 PM     HAIL             11 NE PRINGLE           36.06N 101.32W
05/23/2007  E0.75 INCH       HANSFORD           TX   AMATEUR RADIO

            FELL ON THE HUTCHINSON AND HANSFORD COUNTY LINE ON
            HIGHWAY 207

&&

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 7:12 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	63 min
May 23, 7:20 PM CDT	Tornado Warning	AMA	Lipscomb	55 min
May 23, 7:25 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	65 min
May 23, 7:27 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	63 min
May 23, 7:28 PM CDT	Tornado Warning	AMA	Hutchinson	62 min
May 23, 7:42 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	63 min
May 23, 8:24 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree, Roberts	66 min
May 23, 8:30 PM CDT	Tornado Warning	AMA	Hutchinson, Roberts	60 min
May 23, 8:46 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	59 min
May 23, 9:23 PM CDT	Tornado Warning	AMA	Hansford	37 min
May 23, 9:28 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree, Roberts	62 min
May 23, 9:29 PM CDT	Tornado Warning	AMA	Roberts	61 min
May 23, 9:41 PM CDT	Tornado Warning	AMA	Ochiltree	49 min
May 23, 9:55 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	65 min
May 23, 10:02 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	58 min
May 23, 10:14 PM CDT	Flash Flood Warning	AMA	Lipscomb, Ochiltree	4 hr
May 23, 10:32 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	58 min
May 23, 10:38 PM CDT	Tornado Warning	AMA	Lipscomb	52 min
May 23, 10:58 PM CDT	Flash Flood Warning	AMA	Roberts	3 hr
May 23, 11:00 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	60 min
May 23, 11:33 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	57 min
May 23, 11:42 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	63 min
May 24, 12:00 AM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	45 min
May 24, 12:21 AM CDT	Severe Thunderstorm Warning	AMA	Hemphill	54 min
May 23, 8:15 PM CDT	Severe Thunderstorm Warning	AMA	Texas	60 min
May 23, 9:16 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	59 min
May 23, 9:27 PM CDT	Tornado Warning	AMA	Beaver	48 min
May 23, 11:26 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	49 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Severe Thunderstorm Warnings in Oklahoma, 2007 Every severe thunderstorm warning 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.