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Almanor water season ends on the dry side

Dale Knutsen
Special to Feather Publishing
7/10/2012

The 2011-12 precipitation season ended June 30 with the Lake Almanor Basin having received a somewhat less than average amount of water. The accumulated total precipitation for the year was 25.98 inches at the Prattville monitoring site. This comes to about 78 percent of average for the year.

A quick comparison of annual total precipitation percentages for the past five years shows the following:

—The 2011-12 season was 78 percent of average and nearly half of the 2010-11 season that reached the high of 140 percent of average.

Read more: Almanor water season ends on the dry side

 

Who turned off the spigot?

Dale Knutsen
Special to Feather Publishing

 

A funny thing happened on the way to our usual wet season.  Mother Nature turned off the spigot.

December 2011 in the Lake Almanor Basin was the driest in more than a decade. Only 0.32 inch of total precipitation was recorded at the automated site near Prattville, as compared to more than 5 inches in an average December.

Read more: Who turned off the spigot?

 

November precip: Almanor receives large amount of dry snow

Dale Knutsen
Special to Feather Publishing
12/6/2011

Only a fraction of typical November moisture arrived in the Lake Almanor Basin this year.

The monitoring site near the shoreline at Prattville recorded 1.18 inches of total precipitation, which is well under the 4-inch average for the month. The total includes the moisture content of 16.5 inches of snowfall recorded on the West Shore, a figure that is well above average for November.

Read more: November precip: Almanor receives large amount of dry snow

  

Almanor has slow start to precipitation year

Dale Knutsen
Special to Feather Publishing

The new precipitation year began July 1 and after four months the Lake Almanor Basin has accumulated 2.10 inches, or about 63 percent of the long-term average.

Almost all of that arrived in early October, either as rain or in the form of two inches of wet snow. A slow start to the precipitation season is relatively common for this region as we complete our customary summer drought period.

Read more: Almanor has slow start to precipitation year

 

Warmer summers here to stay?

Feather Publishing
Courtesy of  Stanford University
June 9, 2011

June 6, 2011 - The tropics and much of the Northern Hemisphere are likely to experience an irreversible rise in summer temperatures within the next 20 to 60 years if atmospheric greenhouse gas concentrations continue to increase, according to a new climate study by Stanford University scientists. The results will be published later this month in the journal Climatic Change.

In the study, the Stanford team concluded that many tropical regions in Africa, Asia and South America could see "the permanent emergence of unprecedented summer heat" in the next two decades. Middle latitudes of Europe, China and North America – including the United States – are likely to undergo extreme summer temperature shifts within 60 years, the researchers found.

Read more: Warmer summers here to stay?

  

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