March 2015: Another Warmest Month on Record for the Planet

By: Dr. Jeff Masters, 4:15 PM GMT on April 17, 2015

March 2015 was Earth's warmest March since global record keeping began in 1880, said NOAA's National Climatic Data Center (NCDC) on Friday. NASA rated March 2015 as the 3rd warmest March on record (small differences in analysis techniques can lead to slightly different rankings from agency to agency, and the two estimates were quite close to each other.) March 2015's warmth makes the year to date period (January - March) the warmest such period on record, and the pa...

Climate Summaries

CEOs Urging Action in 2015 on Global Climate

By: Jeff Masters and Bob Henson, 11:24 PM GMT on April 16, 2015

In an open letter released on Thursday evening, 43 chief executive officers from leading global companies called on governments around the world to take bold action at the pivotal UN climate meeting set for later this year. The CEOs are listed in a full-page ad appearing in Friday’s issue of Financial Times (see image below), in conjunction with the spring meetings of the World Bank Group and International Monetary Fund. The signatories to the letter include David...

Climate Change Politics

Dust and Deluge: Heavy Rain in Southeast, High Winds and Grit in Rockies, Plains

By: Bob Henson, 3:36 PM GMT on April 15, 2015

A series of drenching rains across much of the South this week is being fed by some of the richest atmospheric moisture on record for April. Flash flood watches and flood warnings are plastered across much of the central Gulf Coast, where pockets of 3+” of rain on Tuesday followed widespread 1 – 2” amounts on Monday. CoCoRaHS reports for the 24-hour period ending Wednesday morning included 5.08” in Hancock County, Mississippi, and 4.94” in St. Tammany Pari...

Dust Storm Flood

Updated: 3:59 PM GMT on April 15, 2015

CSU Predicts a Quiet 2015 Atlantic Hurricane Season Due to Rising El Niño Odds

By: Jeff Masters, 2:05 PM GMT on April 13, 2015

Another quiet Atlantic hurricane season is likely in 2015, said the hurricane forecasting team of Dr. Phil Klotzbach and Dr. Bill Gray of Colorado State University (CSU) in their latest seasonal forecast issued April 9. They called for an Atlantic hurricane season with 7 named storms, 3 hurricanes, 1 intense hurricane, and an Accumulated Cyclone Energy (ACE) of 40. The long-term averages for the period 1971 - 2010 were 12 named storms, 6.5 hurricanes, 2 intense hurr...

Atmospheric Phenomena El Niño Hurricane

Updated: 2:54 PM GMT on April 14, 2015

Tornadoes Rip Through Northern Illinois, Killing 2 and Injuring 20

By: Bob Henson and Jeff Masters, 1:28 PM GMT on April 10, 2015

America's worst severe weather outbreak so far in 2015 was Thursday, when a preliminary total of sixteen tornadoes touched down in Illinois, Iowa, and Missouri. Many of the tornado reports came from a single long-lived supercell in northern Illinois, about 80 miles northwest of Chicago, that spawned a large wedge-shaped tornado around 7 pm local time. Significant damage was reported near the town of Rochelle, and every structure in the tiny town of Fairdale was repo...


Updated: 12:43 AM GMT on April 12, 2015

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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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