Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

May 21, 2012 Severe Storms

The combination of an unstable air mass, a retreating frontal boundary, and an approaching upper-level disturbance ignited a round of severe thunderstorms across eastern New Mexico and the western Texas Panhandle. One supercell thunderstorm develop over Oldham County, Texas and slowly drifted southward. This storm produced a tornado 4 miles northwest of Adrian and hail up to the size of golfballs in Adrian. The tornado was rated EF-0 with winds estimated of 65 mph. It was on the ground for 3 minutes with a path length of 1,000 yards. The tornado was estimated to be 100 yards wide. The supercell thunderstorm eventually was overtaken by a line of storms moving out of eastern New Mexico. A squall line of thunderstorms became well-established across the southwestern Texas Panhandle and moved to the southeast. This line of storms quickly became a wind threat, and in fact, a 61-mph wind gust was recorded in downtown Amarillo.

RADAR IMAGES


KAMA storm relative velocity at 8:37 p.m.	KAMA base reflectivity at 8:37 p.m.

STORM IMAGES


Tornado 5 miles NW of Adrian, TX. (Courtesy of Chris Kimble)	Supercell facing west on I-40 west of Vega, TX. (Courtesy of Jason Persoff)

Tornado due west of Vega, TX. (Courtesy of Jason Persoff)	Tornado becoming rain-wrapped west of Vega, TX. (Courtesy of Jason Persoff)

Southeast of Adrian looking northwest. (Courtesy of Wesley Luginbyhl)

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