![]() Conversely, the snowpack was much above average in Arizona, New Mexico, and southern Utah. Some individual SNOTEL stations in the northern Rockies had early April snow water equivalent in the driest fifth percentile of the historical record (95 percent of the years for this date were wetter). The pattern was evident in the high-elevation station ( SNOTEL) network, especially in maps of the end-of-March snowpack and snow water content. The city is closing in on its latest first snowfall, joining cities in the Northeast. The deepest snowpack in Washington was last observed at Alpental Mid-Mountain with a snowpack depth of 38.8, about 82 of normal when compared to its 47' average depth for this time of year. Mountain snowpack in the Pacific Northwest was less than 25 percent of normal in several locations. Snowpack levels across the state are currently 52 of normal. ![]() During the 2009–2010 Cold Season, the West generally experienced much–below average snowpacks. The annual snowpack typically reaches its maximum values at the end of March. News4’s Juliana Valencia checks in on conditions. The total annual water budget for agriculture and human use in the mountainous West is based upon the amount of snow melt that will occur in spring and is proportional to the amount of snow on the ground. area between overnight snowfall and gusty, frigid cold Friday. Winter and spring mountain snowpack provide a crucial water source across much of the western United States. The low spring snow cover extent was driven by anomalously warm conditions over the regions which had experienced the heavy snow during the December–February period. As the season transitioned into spring, conditions were almost the complete opposite of the winter, with low snow cover extents reported across the United States during April (8 th smallest) and May (10 th smallest). Radar shows that snow has tapered off to mostly just flurries west of the Beltway, while. More information on the 2009–2010 winter can be found in the 2009–2010 Cold Season Special Report. While snow tapers off, temperatures to plunge overnight with icy areas increasing. had snow on the ground, including Florida and Hawaii. A far–reaching storm the second week of February brought snow to the Deep South, and every state in the U.S. January was 6 th largest and February 3 rd largest. Persistent cold and snow across much of the country during January and February was associated with those months ranking in their top ten largest snow cover extents for the U.S. This was partially due to snow falling across the Southern Plains, Gulf Coast, and the Southeast - regions which do not typically receive much December snowfall. According to 44 years of satellite data analyzed by the NOAA supported, Rutgers Global Snow Lab, a new monthly snow cover extent record was set during December 2009. Long–standing monthly and seasonal snowfall records were shattered and record cold temperatures were set over the eastern two-thirds of the nation. Much of the United States experienced a record breaking 2009–2010 winter.
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