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Powerful Pacific Storm to Continue Impacting Northern California; Heavy Snow in the Appalachians and Portions of the Northeast

A strong atmospheric river will continue to impact northern California with heavy rain and life-threatening flooding through Friday. Unsettled weather is expected across much of the Northeast and Great Lakes over the next few days, including the likelihood of heavy snow in the central Appalachians and higher elevations of northeastern Pennsylvania and southern New York. Read More >

Overview

Heavy rain fell over much of West Texas and the Panhandles early in October. 

 

A large upper level storm system slowly evolved and deepened across the southwest United States Saturday and Sunday, October 6th-7th.  The low pressure system peaked in intensity just west of the Four Corners Region on Monday, October 8th, before lifting strongly north/northeast towards the Northern Plains.  This system drew copious amounts of moisture north across much of West Texas, the Panhandles, Oklahoma, and northeast towards the Midwest and brought heavy rainfall to the Panhandles at times over a four day stretch beginning late Friday and ending early Tuesday (October 5-9).

The band of highest moisture provided a large area of high rainfall totals that reached 5-8 inches just across the border in western Oklahoma.  Just on the edge of this band, the far eastern Panhandles averaged 2 to 4 inches, but there were some isolated higher amounts. A developing jet stream east of the low produced a secondary area of higher rainfall totals just west of Amarillo. This is where the greatest flood impacts for the event were observed for the Panhandles region.

In the end, 4-7 inches of rain fell from the west side of Amarillo to near Vega, Texas. This produced widespread street flooding at times Sunday through Tuesday morning.  Bushland was hit hardest and during the peak of the heavier rainfall water was flowing down entire streets to the point that it was across front yards to the edges of homes.  Some metal shops and garages were flooded, but no reports of flood waters entering households were received. In addition, runoff and heavy rainfall resulted in entire fields becoming lakes with some Playa Lakes becoming completely filled after being dry over the last 2 years - an impressive feat.  

Storms briefly became severe on Saturday as the sun finally broke out across the southwestern Texas Panhandle. A cool and somewhat stable air mass mostly limited the severe storm potential most of the event, which was fortunate as the severe storm threat could have been significant with just modest heating. Two tornadoes were reported across Castro County Saturday afternoon and rotating storms prompted additional tornado warnings across Deaf Smith and Potter/Randall Counties.  Some reports of one-inch hail were received around the Hereford area, but the main impact from these storms was heavy rainfall west of Amarillo.

 

 

Rainfall Map below shows 72 hour rainfall ending at ~11:20am October 9th.  

 

   

 

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