Alert archive / Texas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 178, NWS Amarillo, TX

July 18, 20094 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 18, 2009, 4:38 PM CDT for 4 counties in 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: Jul 18, 2009, 4:38 PM CDT (21:38 UTC)
Expired: Jul 18, 2009, 5:45 PM CDT
In force: 67 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

Counties Dallam County, TX, Hartley County, TX, Moore County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 104 km from the middle of the area, began a volume at 21:41 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
Jul 18, 2:43 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

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 Jul 18, 3:25 PM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 18, 3:25 PM CDT, 1 hour 13 minutes before

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Hazardous weather outlook, Jul 18, 2:47 PM CDT, 1 hour 51 minutes before

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In the hours before

Special weather statement, Jul 18, 3:29 PM CDT, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
329 PM CDT SAT JUL 18 2009

OKZ001-002-TXZ001-002-182100-
CIMARRON OK-TEXAS OK-DALLAM TX-SHERMAN TX-
329 PM CDT SAT JUL 18 2009

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY EFFECTIVE UNTIL 400 PM CDT FOR SHERMAN...DALLAM...
TEXAS AND CIMARRON COUNTIES.

AT 328 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
MONITORING A STRONG THUNDERSTORM 5 MILES NORTHWEST OF
GRIGGS...MOVING SOUTHEAST AT 20 MPH.

HAIL...STRONG WINDS...AND VERY HEAVY RAINFALL ARE POSSIBLE WITH THIS
STORM.

THIS STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP
RAPIDLY. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED.

JJB

Local storm report, Jul 18, 4:34 PM CDT, 4 minutes before

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Special weather statement, Jul 18, 4:34 PM CDT, 4 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
Jul 17, 7:02 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	58 min
Jul 17, 9:15 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	60 min
Jul 18, 3:51 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	54 min
Jul 18, 4:39 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	66 min
Jul 18, 4:58 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	62 min
Jul 18, 5:29 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	61 min
Jul 18, 5:41 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	64 min
Jul 18, 5:58 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	62 min
Jul 18, 6:15 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	60 min
Jul 18, 6:45 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	60 min
Jul 18, 6:53 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	67 min

Nearby

Severe Thunderstorm Warnings in Texas, 2009 Every severe thunderstorm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.