Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 115, NWS Amarillo, TX

May 6, 2007Collingsworth County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 6, 2007, 5:33 AM CDT for Collingsworth County, Texas. It was in force for 57 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 6, 2007, 5:33 AM CDT (10:33 UTC)
Expired: May 6, 2007, 6:30 AM CDT
In force: 57 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Collingsworth County, TX

The radar

The Amarillo radar (KAMA), 134 km from the middle of the area, began a volume at 10:36 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 10.6 hours before the alert went out and 133 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: 3236 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 6, 5:25 AM CDT, 8 minutes earlier.

Area forecast discussion, May 6, 5:25 AM CDT, 8 minutes before

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Hazardous weather outlook, May 5, 10:43 PM CDT, 6 hours 50 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
1043 PM CDT SAT MAY 5 2007

OKZ001>003-TXZ001>020-061100-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
1043 PM CDT SAT MAY 5 2007

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

.DAY ONE...

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TONIGHT ACROSS THE
EASTERN OKLAHOMA PANHANDLE AND THE SOUTHEASTERN AND EXTREME EASTERN
TEXAS PANHANDLE. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY
THREATS. A FEW STORMS MAY ALSO PRODUCE TORNADOES...ESPECIALLY ACROSS
THE EASTERN OKLAHOMA PANHANDLE AND THE SOUTHEASTERN AND EXTREME
EASTERN TEXAS PANHANDLE.

.DAYS TWO THROUGH SEVEN...

THUNDERSTORMS WILL BE POSSIBLE SUNDAY THROUGH WEDNESDAY ACROSS ALL
SECTIONS OF THE TEXAS AND OKLAHOMA PANHANDLES. A FEW STORMS MAY REACH
SEVERE LEVELS...WITH LARGE HAIL AND DAMAGING WINDS BEING THE PRIMARY
THREATS. IN ADDITION...PERIODS OF HEAVY RAINFALL WILL BE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED...ESPECIALLY ACROSS THE EASTERN
SECTIONS OF THE PANHANDLES TONIGHT. EMERGENCY MANAGERS AND
SPOTTER GROUPS SHOULD KEEP ABREAST OF THE LATEST WEATHER
DEVELOPMENTS...AND BE ON THE ALERT FOR UPDATED STATEMENTS AND
FORECASTS FROM THE NATIONAL WEATHER SERVICE IN AMARILLO.

SPOTTER ACTIVATION MAY ALSO BE REQUIRED MONDAY AND TUESDAY.

SCHNEIDER

In the hours before

Local storm report, May 6, 1:52 AM CDT, 3 hours 41 minutes before

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Special weather statement, May 6, 2:10 AM CDT, 3 hours 23 minutes before

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Special weather statement, May 6, 2:12 AM CDT, 3 hours 21 minutes before

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Special weather statement, May 6, 2:12 AM CDT, 3 hours 21 minutes before

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Special weather statement, May 6, 3:51 AM CDT, 1 hour 42 minutes before

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Special weather statement, May 6, 5:07 AM CDT, 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:06 PM CDT	Severe Thunderstorm Warning	AMA	Wheeler	54 min
May 5, 7:25 PM CDT	Tornado Warning	AMA	Collingsworth, Wheeler	35 min
May 5, 11:22 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	53 min
May 5, 11:45 PM CDT	Tornado Warning	AMA	Gray	31 min
May 6, 12:02 AM CDT	Severe Thunderstorm Warning	AMA	Donley	58 min
May 6, 12:10 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong	65 min
May 6, 12:33 AM CDT	Severe Thunderstorm Warning	AMA	Gray	57 min
May 6, 12:51 AM CDT	Severe Thunderstorm Warning	AMA	Hemphill	54 min
May 6, 1:11 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong	64 min
May 6, 1:28 AM CDT	Severe Thunderstorm Warning	AMA	Gray	62 min
May 6, 2:18 AM CDT	Severe Thunderstorm Warning	AMA	Wheeler	57 min
May 6, 6:15 AM CDT	Severe Thunderstorm Warning	AMA	Wheeler	60 min
May 6, 5:31 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill	59 min
May 6, 6:13 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	62 min
May 5, 11:11 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	64 min

Nearby

Severe Thunderstorm Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.