Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 213, NWS Amarillo, TX

June 19, 2007Potter County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 19, 2007, 5:39 PM CDT for Potter County, Texas. It was in force for 66 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 19, 2007, 5:39 PM CDT (22:39 UTC)
Expired: Jun 19, 2007, 6:45 PM CDT
In force: 66 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Potter County, TX

The radar

The Amarillo radar (KAMA), 25 km from the middle of the area, began a volume at 22:39 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 19, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.7 hours before the alert went out and 318 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: 2489 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 630 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.9

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 19, 5:34 PM CDT, 5 minutes earlier.

Area forecast discussion, Jun 19, 5:34 PM CDT, 5 minutes before

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Hazardous weather outlook, Jun 19, 1:00 PM CDT, 4 hours 39 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
100 PM CDT TUE JUN 19 2007

OKZ001>003-TXZ001>020-201100-
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 JUN 19 2007

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

.DAY ONE...

THERE WILL BE A SLIGHT CHANCE TO CHANCE OF THUNDERSTORMS ACROSS THE
OKLAHOMA AND TEXAS PANHANDLES THIS AFTERNOON AND TONIGHT. THE BEST
CHANCES FOR THUNDERSTORMS TO FORM WILL BE IN THE EASTERN OKLAHOMA
AND TEXAS PANHANDLES THIS EVENING. A FEW OF THE STORMS THAT FORM MAY
BECOME SEVERE...WITH LARGE HAIL AND DAMAGING WINDS EXPECTED TO BE THE
PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS ACROSS THE
EASTERN HALF OF THE TEXAS AND OKLAHOMA PANHANDLES SHOULD BE READY
FOR POSSIBLE ACTIVATION THIS AFTERNOON AND TONIGHT.

JORDAN

In the hours before

Special weather statement, Jun 19, 5:29 PM CDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
529 PM CDT TUE JUN 19 2007

TXZ011-016-192330-
DEAF SMITH TX-OLDHAM TX-
529 PM CDT TUE JUN 19 2007

...STRONG THUNDERSTORM IN NORTHERN DEAF SMITH AND CENTRAL OLDHAM
COUNTIES...

AT 529 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTH OF ADRIAN MOVING EAST AT 5 MPH.

STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY.

PEOPLE IN NORTHERN DEAF SMITH AND CENTRAL OLDHAM COUNTIES...INCLUDING
THE CITY OF VEGA...SHOULD MONITOR THE WEATHER SITUATION CLOSELY...
LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER
CONDITIONS.

Local storm report, Jun 19, 5:30 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
530 PM CDT TUE JUN 19 2007

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

0530 PM     HAIL             ADRIAN                  35.28N 102.66W
06/19/2007  M1.00 INCH       OLDHAM             TX   TRAINED SPOTTER

            HAIL ONGOING DURING TIME OF CALL.

&&

JJB

Local storm report, Jun 19, 5:37 PM CDT, 2 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 19, 5:29 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	61 min
Jun 19, 5:38 PM CDT	Severe Thunderstorm Warning	AMA	Randall	67 min
Jun 19, 6:05 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	55 min
Jun 19, 6:28 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	77 min
Jun 19, 6:40 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	80 min
Jun 19, 6:52 PM CDT	Severe Thunderstorm Warning	AMA	Moore	68 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.