Sentences with phrase «winter precipitation total»

Despite a near - average winter precipitation total for California, Oregon, and Washington, the record warmth caused most of the precipitation to fall as rain and not snow, which had implications on the drought intensification and water resource crisis during the warm months.

The Alaska winter precipitation total was 7.85 inches, 0.30 inch below average, and ranked near the median value in the 1925 - 2015 record.

Not exact matches

Marcus has said that regulators would revisit the mandates before summer to take into account the precipitation totals from winter and early spring.

In stark contrast, between 5,000 to 8,000 feet in Montana, Idaho, and Arizona, from 75 to 78 percent of all stations report an increase in rain as a percentage of total winter precipitation.

In locations that are accustomed to getting snow during the winter, the total amount of snow each year is already decreasing as the planet warms from increasing greenhouse gases; the percentage of precipitation falling as snow is on the decline, with more of it falling as rain.

Atmospheric river storms bring a fire hose of tropical moisture to Western states, often delivering a majority of winter's total precipitation in just a few days.

For the entire Northern Hemisphere, there is evidence of an increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms increased in number during the last century in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased in southern and some western areas, 16 increased in the northern Great Plains and Great Lakes region, 16,17 and not changed in other areas, such as the Sierra Nevada, although snow is melting earlier in the year and more precipitation is falling as rain versus snow.18 Very snowy winters have generally been decreasing in frequency in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such winters.19 Heavier - than - normal snowfalls recently observed in the Midwest and Northeast U.S. in some years, with little snow in other years, are consistent with indications of increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends in blocking remains an active research area.

We first extracted total winter precipitation, summed across October to April, for every year from 1900 — 2012 from the PRISM modeled dataset [25] across 2 scales: (a) ponderosa pine forests within the Verde watershed and (b) these forests within the Salt - Verde watersheds.

To test the accuracy of these modeled data, we compared values from the Verde ponderosa pine PRISM modeled data to measurements of total winter precipitation recorded during the original Beaver Creek experiments [31].

We ran a total of 26 scenarios where in each scenario we inserted a different 15 - year winter precipitation sequence.

Western Australia total reductions in autumn and winter precipitation could be potentially as high as 50 percent in the next 80 years.

68 percent of California weather stations located between 2,000 and 5,000 feet have experienced declines in the ratio of snow to total winter precipitation from 1949 - 2004.