Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 48, NWS Amarillo, TX

May 9, 2006Roberts County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 9, 2006, 7:47 PM CDT for Roberts County, Texas. It was in force for 73 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 9, 2006, 7:47 PM CDT (00:47 UTC)
Expired: May 9, 2006, 9:00 PM CDT
In force: 73 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), 105 km from the middle of the area, began a volume at 00:47 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
May 9, 6:01 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.8 hours before the alert went out and 105 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: 828 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 2055 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

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 9, 3:50 PM CDT, 3 hours 57 minutes earlier.

Area forecast discussion, May 9, 3:50 PM CDT, 3 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
350 PM CDT TUE MAY 9 2006

.DISCUSSION...
SFC COLD FRONT HAS PUSHED WELL S OF FCST AREA THIS AFTN WITH UPSLOPE
LOW LVL FLOW DVLPG IN ITS WAKE. DEWPOINTS HAVE DROPPED SOMEWHAT...
ESPECIALLY NWRN HALF. UPPER LEVEL SHORTWAVE TROF PUSHING THRU FOUR
CORNERS REGION TOWARDS SRN HIGH PLAINS THIS EVENING AND TONIGHT.
TSTMS ALREADY DVLPG OVER HIGHER TERRAIN OF NERN NM...AND MOVG INTO
WRN OK PNHDL AS OF THIS WRITING. EXPECT COVERAGE TO INCREASE NEXT
SVRL HOURS AND MOVE ESEWD. HAVE INCREASED POPS OVER PREVIOUS PCKG
TO LIKELY MUCH OF OK PNHDL AND NERN TX PNHDL...DOWN TO CHC POPS
REMAINDER OF THE PNHDLS FOR TONIGHT.

DRY AIR TO INVADE ON WEDNESDAY WITH NO POPS. COOLER TEMPS AS WELL.
WARMING TREND TO COMMENCE ON THU INTO SATURDAY AS COOL SFC HIGH
MOVES OFF TO THE E AND LEESIDE TROF DVLPS. NO POPS WED THRU SATURDAY
AS WELL.

MEDIUM RANGE MODELS ARE IN AGREEMENT OF A WRN RIDGE AND DEEP ERN
TROF NEXT SEVERAL DAYS...WITH LIMITED MOISTURE RETURN EXPECTED
LATE FRI INTO SUNDAY. ANOTHER COLD FRONT TO MOVE THRU SATURDAY WITH
AN UPPER SHORTWAVE TROF TO MIGRATE ACROSS SUN AFTN AND NIGHT.
THEREFORE...HAVE LEFT IN 20 POPS FOR SAT NIGHT IN ERN ZNS...AND
AREAWIDE SUN AND SUN NIGHT. AFTER THIS SYSTEM PASSES...IT LOOKS
LIKE NORTHERLY FLOW AT SEVERAL LEVELS WILL COMMENCE...LEADING TO DRY
WX EARLY NEXT WEEK. PREVIOUS PCKG IN GOOD SHAPE AND RETAINED ITS
INTEGRITY.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMARILLO TX                48  66  43  71 /  40   0   0   0
BEAVER OK                  48  67  38  70 /  70   0   0   0
BOISE CITY OK              43  65  38  70 /  50   0   0   0
BORGER TX                  48  66  44  74 /  50   0   0   0
BOYS RANCH TX              49  66  45  73 /  40   0   0   0
CANYON TX                  49  66  44  72 /  40   0   0   0
CLARENDON TX               52  69  45  73 /  40   0   0   0
DALHART TX                 45  65  39  71 /  40   0   0   0
GUYMON OK                  47  67  40  72 /  60   0   0   0
HEREFORD TX                48  66  46  72 /  40   0   0   0
LIPSCOMB TX                50  68  39  71 /  60   0   0   0
PAMPA TX                   48  66  43  72 /  50   0   0   0
SHAMROCK TX                53  69  44  73 /  40   0   0   0
WELLINGTON TX              55  71  46  75 /  40   0   0   0

&&

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

&&

ANDRADE

Hazardous weather outlook, May 9, 1:00 PM CDT, 6 hours 47 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
100 PM CDT TUE MAY 9 2006

OKZ001>003-TXZ001>020-101100-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
100 PM CDT TUE MAY 9 2006

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

.DAY ONE...

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND TONIGHT. SOME
STORMS MAY BECOME SEVERE...MAINLY OVER THE SOUTHERN TEXAS PANHANDLE.
LARGE HAIL WILL BE THE PRIMARY THREAT.

.DAYS TWO THROUGH SEVEN...

THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT THROUGH
SUNDAY NIGHT. AT THIS TIME...STORMS ARE NOT EXPECTED TO REACH SEVERE
LEVELS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGERS...ESPECIALLY OVER THE SOUTHERN
TEXAS PANHANDLE...SHOULD STAY CURRENT WITH THE LATEST WEATHER
DEVELOPMENTS...AND BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON
AND EVENING.

BROST

In the hours before

Special weather statement, May 9, 6:48 PM CDT, 59 minutes before

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Special weather statement, May 9, 6:52 PM CDT, 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
652 PM CDT TUE MAY 9 2006

TXZ018-100015-
ARMSTRONG TX-
652 PM CDT TUE MAY 9 2006

...STRONG THUNDERSTORM IN ARMSTRONG COUNTY...

A STRONG THUNDERSTORM WAS LOCATED 8 MILES NORTH OF WAYSIDE AT 652 PM
CDT...MOVING EAST AT 20 MPH.

ONE HALF INCH SIZE HAIL AND WINDS AROUND 50 MPH ARE POSSIBLE.

TAKE SHELTER UNTIL THE STORM HAS PASSED.

Special weather statement, May 9, 7:16 PM CDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
716 PM CDT TUE MAY 9 2006

TXZ006-100030-
HARTLEY TX-
716 PM CDT TUE MAY 9 2006

...STRONG THUNDERSTORM IN HARTLEY COUNTY...

A STRONG THUNDERSTORM WAS LOCATED 8 MILES NORTHWEST OF HARTLEY AT 716
PM CDT...MOVING EAST AT 45 MPH.

ONE HALF INCH SIZE HAIL AND WINDS AROUND 50 MPH ARE POSSIBLE.

TAKE SHELTER UNTIL THE STORM HAS PASSED.

Local storm report, May 9, 7:21 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
721 PM CDT TUE MAY 09 2006

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

0720 PM     HAIL             CLAUDE                  35.11N 101.36W
05/09/2006  E0.75 INCH       ARMSTRONG          TX   TRAINED SPOTTER

&&

RTW

Local storm report, May 9, 7:36 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
736 PM CDT TUE MAY 09 2006

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

0735 PM     HAIL             PANHANDLE               35.35N 101.38W
05/09/2006  E1.00 INCH       CARSON             TX   PUBLIC

&&

DH

Local storm report, May 9, 7:40 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
740 PM CDT TUE MAY 09 2006

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

0739 PM     HAIL             11 WSW LEFORS           35.38N 100.98W
05/09/2006  E0.88 INCH       GRAY               TX   TRAINED SPOTTER

&&

DH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:01 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	74 min
May 9, 7:05 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	55 min
May 9, 7:14 PM CDT	Severe Thunderstorm Warning	AMA	Gray	76 min
May 9, 7:18 PM CDT	Severe Thunderstorm Warning	AMA	Carson	72 min
May 9, 8:04 PM CDT	Severe Thunderstorm Warning	AMA	Moore	39 min
May 9, 8:20 PM CDT	Severe Thunderstorm Warning	AMA	Wheeler	85 min
May 9, 8:34 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	86 min
May 9, 8:48 PM CDT	Severe Thunderstorm Warning	AMA	Donley	87 min
May 9, 9:06 PM CDT	Severe Thunderstorm Warning	AMA	Carson	69 min
May 9, 9:43 PM CDT	Severe Thunderstorm Warning	AMA	Gray	51 min
May 9, 9:57 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	63 min
May 9, 10:16 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley	89 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006 Every severe thunderstorm warning in 2006

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.