Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 213, NWS Amarillo, TX

August 14, 2008Hemphill County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Aug 14, 2008, 6:23 PM CDT for Hemphill County, Texas. It was in force for 67 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: Aug 14, 2008, 6:23 PM CDT (23:23 UTC)
Expired: Aug 14, 2008, 7:30 PM CDT
In force: 67 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

County Hemphill County, TX

The radar

The Amarillo radar (KAMA), 147 km from the middle of the area, began a volume at 23:24 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
Aug 14, 2:47 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 146 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: 237 J/kg
Mixed-layer CIN: -289 J/kg
Mixed-layer LCL: 1559 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Aug 14, 6:19 PM CDT, 4 minutes earlier.

Area forecast discussion, Aug 14, 6:19 PM CDT, 4 minutes before

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Hazardous weather outlook, Aug 14, 3:25 PM CDT, 2 hours 58 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
325 PM CDT THU AUG 14 2008

OKZ001>003-TXZ001>020-151100-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
325 PM CDT THU AUG 14 2008

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

.DAY ONE...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF THE PANHANDLES
UNTIL 10 PM.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF THE
OKLAHOMA AND TEXAS PANHANDLES THIS AFTERNOON AND TONIGHT. SCATTERED
TO NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS THE OKLAHOMA AND TEXAS
PANHANDLES TODAY AND TONIGHT AS A COLD FRONT AND A SERIES OF UPPER
LEVEL DISTURBANCES MOVE ACROSS THE SOUTHERN HIGH PLAINS. SOME OF THE
STORMS WHICH DEVELOP WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH
LARGE HAIL AND DAMAGING WINDS BEING THE PRIMARY THREATS. IN ADDITION
...HEAVY RAINFALL WILL LIKELY ACCOMPANY THE STRONGER STORMS...WHICH
MAY LEAD TO LOCALIZED FLOODING OR FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

A LARGE...SLOW MOVING UPPER LEVEL LOW PRESSURE SYSTEM WILL AFFECT
THE SOUTHERN HIGH PLAINS FROM FRIDAY INTO EARLY NEXT WEEK. AS A
RESULT...SCATTERED TO NUMEROUS THUNDERSTORMS...SOME POSSIBLY SEVERE
WITH LARGE HAIL AND DAMAGING WINDS...ARE EXPECTED FRIDAY AND FRIDAY
NIGHT ACROSS THE PANHANDLES. HEAVY RAINFALL WILL ALSO BE POSSIBLE
WITH THE STRONGER STORMS...WHICH MAY LEAD TO LOCALIZED FLOODING OR
FLASH FLOODING.

THUNDERSTORMS WILL ALSO BE POSSIBLE SATURDAY THROUGH SUNDAY NIGHT
ACROSS ALL SECTIONS OF THE PANHANDLES. ADDITIONAL THUNDERSTORMS WILL
BE POSSIBLE MONDAY THROUGH TUESDAY NIGHT...ACROSS MAINLY EASTERN AND
CENTRAL SECTIONS OF THE PANHANDLES...AS THE LARGE UPPER LEVEL LOW
PRESSURE SYSTEM BEGINS TO MOVE EAST OF THE REGION. ANY STORMS THAT
FORM FROM SATURDAY THROUGH TUESDAY NIGHT ARE EXPECTED TO REMAIN BELOW
SEVERE LEVELS AT THIS TIME. HOWEVER...HEAVY RAINFALL MAY ACCOMPANY
THE STRONGER STORMS ON SATURDAY...WHICH MAY LEAD TO LOCALIZED
FLOODING OR FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS ACROSS ALL SECTIONS
OF THE PANHANDLES SHOULD REMAIN ALERT AND BE READY FOR POSSIBLE
ACTIVATION THIS AFTERNOON AND TONIGHT...AND THEN AGAIN ON FRIDAY
AFTERNOON AND FRIDAY NIGHT.

OBSERVERS ARE REQUESTED TO SUBMIT THEIR RAINFALL REPORTS TO THE
NATIONAL WEATHER SERVICE OFFICE IN AMARILLO.

COCKRELL

In the hours before

Local storm report, Aug 14, 5:34 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
534 PM CDT THU AUG 14 2008

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

0453 PM     HAIL             8 E STRATFORD           36.34N 101.93W
08/14/2008  E1.75 INCH       SHERMAN            TX   LAW ENFORCEMENT

&&

EVENT NUMBER AMA0800823

CK

Local storm report, Aug 14, 5:43 PM CDT, 40 minutes before

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Local storm report, Aug 14, 5:44 PM CDT, 39 minutes before

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Local storm report, Aug 14, 5:54 PM CDT, 29 minutes before

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Local storm report, Aug 14, 5:55 PM CDT, 28 minutes before

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Special weather statement, Aug 14, 6:01 PM CDT, 22 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
Aug 14, 4:20 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	55 min
Aug 14, 5:22 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	53 min
Aug 14, 5:32 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Moore, Sherman	58 min
Aug 14, 5:37 PM CDT	Severe Thunderstorm Warning	AMA	Oldham, Potter	53 min
Aug 14, 5:42 PM CDT	Flash Flood Warning	AMA	Lipscomb	63 min
Aug 14, 5:46 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	59 min
Aug 14, 5:51 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	54 min
Aug 14, 6:13 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	62 min
Aug 14, 6:14 PM CDT	Areal Flood Advisory	AMA	Hutchinson	3 hr
Aug 14, 6:53 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	67 min
Aug 14, 6:55 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Wheeler	65 min
Aug 13, 8:57 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	63 min
Aug 14, 4:37 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	53 min
Aug 14, 5:20 PM CDT	Severe Thunderstorm Warning	AMA	Texas	55 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.