Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 131, NWS Amarillo, TX

June 7, 20157 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 7, 2015, 7:45 PM CDT for 7 counties in Texas. It was in force for 90 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: Jun 7, 2015, 7:45 PM CDT (00:45 UTC)
Expired: Jun 7, 2015, 9:15 PM CDT
In force: 90 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Collingsworth County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 114 km from the middle of the area, began a volume at 00:48 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
Jun 7, 3:03 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.8 hours before the alert went out and 255 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: 414 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 2453 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Jun 7, 6:57 PM CDT, 48 minutes earlier.

Area forecast discussion, Jun 7, 6:57 PM CDT, 48 minutes before

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Hazardous weather outlook, Jun 7, 3:24 PM CDT, 4 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
324 PM CDT SUN JUN 7 2015

OKZ001>003-TXZ001>020-081100-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
324 PM CDT SUN JUN 7 2015

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

.DAY ONE...THROUGH TONIGHT.

THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT ACROSS MUCH OF THE
PANHANDLES...WITH THE HIGHEST CHANCES ACROSS THE OKLAHOMA PANHANDLE
AND NORTHERN AND WESTERN PORTIONS OF THE TEXAS PANHANDLE. SOME OF
THESE STORMS WILL LIKELY BE SEVERE THROUGH THIS EVENING...PARTICULARLY
ACROSS NORTHERN AND WESTERN PORTIONS OF THE COMBINED PANHANDLES.
LARGE HAIL UP TO 2 INCHES IN DIAMETER AND WIND GUSTS TO 70 MPH WILL
BE THE PRIMARY HAZARDS. LOCALLY HEAVY RAIN MAY ALSO OCCUR...WHICH COULD
LEAD TO LOCALIZED FLOODING OR FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A LOW POTENTIAL FOR SEVERE STORMS WILL EXIST ON MONDAY...WITH LARGE
HAIL AND DAMAGING WINDS AGAIN THE PRIMARY CONCERNS. ISOLATED TO
PERHAPS SCATTERED STORMS WILL REMAIN POSSIBLE TUESDAY THROUGH
THURSDAY...BEFORE STORMS ARE EXPECTED TO INCREASE IN COVERAGE LATE
WEEK INTO THE WEEKEND. THE POTENTIAL FOR HEAVY RAIN WILL INCREASE
LATE THIS WEEK WHICH COULD LEAD TO SOME FLOODING OR FLASH
FLOODING...AND A FEW STRONG TO SEVERE STORMS COULD ALSO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THROUGH THIS EVENING ACROSS
PORTIONS OF THE NORTHERN AND WESTERN PANHANDLES.

KB

In the hours before

Local storm report, Jun 7, 6:05 PM CDT, 1 hour 40 minutes before

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Local storm report, Jun 7, 6:07 PM CDT, 1 hour 38 minutes before

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Special weather statement, Jun 7, 6:18 PM CDT, 1 hour 27 minutes before

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Local storm report, Jun 7, 6:50 PM CDT, 55 minutes before

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Local storm report, Jun 7, 6:53 PM CDT, 52 minutes before

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Local storm report, Jun 7, 6:56 PM CDT, 49 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
Jun 7, 7:04 PM CDT	Special Weather Statement	AMA	Carson, Hutchinson, Potter	56 min
Jun 7, 7:38 PM CDT	Special Weather Statement	AMA	Armstrong, Carson, Gray, Randall	67 min
Jun 7, 8:11 PM CDT	Special Weather Statement	AMA	Armstrong	64 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.