September 11, 2015

To climb out of the bottom 20% bracket for 5-year precipitation totals, precipitation in the upcoming water year must be 135-160% of normal in northern California, 160% of normal in the Southeast, and 198% of normal in the San Joaquin Valley.

September 3, 2015

While the Atlantic hurricane season has been generally below-average, that doesn't mean it can't have a rare event.

September 3, 2015

An over-active hurricane season in the central/eastern Pacific Ocean went into overdrive as three major hurricanes occurred at the same time.

August 14, 2015

Think 115°F is uncomfortably hot? Imagine it being incredibly humid as well. 

Pseudo-nitzschia cells under a microscope
August 6, 2015

From Alaska's Aleutian Islands to southern California, impacts since May have ranged from record-high concentrations of neurotoxins, to shellfish harvesting bans, to reports of sick and dead ocean life. 

July 28, 2015

Dangerous flooding amidst a record drought? Just call it another week in California.

July 24, 2015

Hot and dry are the perfect ingredients for wildfires, and the recipe was on the menu across western North America in 2015.

July 14, 2015

A stagnant weather pattern and plenty of hot air were the necessary ingredients for a record-breaking heat wave in Europe.

June 17, 2015

The eastern Pacific hurricane season has gotten off to a quick start. How quick? Read on to find out.

June 9, 2015

Meteorologist Tom Di Liberto explains how an unusual wind pattern and a late monsoon contributed to India's deadly May 2015 heatwave.