Heavy Rain and Flash Flooding Threat in Montana; Severe Thunderstorms in the Middle Missouri Valley

A low pressure system will bring heavy to excessive rainfall and high winds across Montana this afternoon. Heavy rainfall totals may lead to scattered flash flooding concerns. A line of showers and strong to severe thunderstorms will move into the mid Missouri Valley region this afternoon producing severe winds and isolated large hail with stronger storms. Read More >

Snow, Wind and all out Blizzard Conditions on December 19, 2012

Snow and wind combined to create blizzard conditions on Wednesday, December 19th, as a low pressure system moved out of the central Rockies and lifted northeast across Kansas to Missouri. As the system advanced, snow developed and spread east across the central plains throughout the day and carried into the first part of the night. Winds increased from the north during the afternoon with wind gusts of 45 mph common, and the combination of the wind and snow created blizzard or 'white out' conditions during the afternoon and evening, especially in open areas. Travel became difficult if not impossible Wednesday evening, with reports of numerous accidents and road closures. Interstate 80 remained closed across Nebraska on Thursday morning, December 20th.

In south central Nebraska, snow amounts ranged from three inches at Greeley, to 9 inches at Gresham and Blue Hill, with the highest storm total of 10 inches at York. In north central Kansas, snow amounts ranged from one inch at Damar, to five inches at Phillipsburg. The swath of heaviest snow fell from Wilsonville, NE through Blue Hill and Hastings to Gresham and Osceola. Much needed precipitation (melted snow) was observed with this storm system and Grand Island set a daily precipitation record. Grand Island received 1.04 inches of precipitation on December 19th, which broke the previous record of 0.71 inch set in 1952. Hastings measured 1.03 inches, Wilsonville recorded 1.05 inches, and 0.94 inch was measured in Osceola.


Snowfall map of the Central Plains.	Snowfall across the Hastings WFO Outlook area ending at 7am on Thursday, December 20th (requested date).	24 hour liquid precipitation (melted snow) map ending at 7 am Thursday, December 20th.

Peak wind gusts are shown in the table below.

Location	Peak Wind Gust (mph)
Grand Island, NE	47
Hastings, NE	47
Lexington, NE	46
Holdrege, NE	45
York, NE	45
Aurora, NE	43
Hebron, NE	43
Kearney, NE	41
Phillipsburg, KS	40
Ord, NE	38

Top Snowfall Amounts From Our Observers

Location	Snowfall (Inches)
York 3N	10.0
Blue Hill 4SW	9.0
Gresham 3W	9.0
Hastings	8.1
Bradshaw	8.0
Clay Center 6ESE	8.0
Osceola	8.0
Wilsonville	8.0
Grand Island	7.0