Category: Drought

Experts project below average Rocky Mountain wildfire season

Alaska, Southwest could see early season forest fires

spring wildfire outlook rocky mountains
Experts say they aren’t expecting a severe wildfire season in the Rocky Mountain region.
Summit County wildfire
An unusual high elevation early season wildfire burns near Keystone, Colorado in 2012. @bberwyn photo.

Staff Report

April precipitation may have helped dampen the potential for a severe wildfire season in parts of the Rocky Mountain region and in the adjacent Great Plains, according to a new outlook from the interagency Rocky Mountain Area Coordination Center.

The projections is based on various seasonal indicators including precipitation, snowpack average, temperatures, wind, plant and soil moisture, and the timing of green-up. These indices support a below average to near average fire season in 2016.

“The timing of the recent precipitation events, primarily in April, has been critical to assure the availability of soil moisture and subsequent green-up, which diminishes the threat of an early onset of fire season,” said RMACC fire meteorologist Tim Mathewson. Continue reading “Experts project below average Rocky Mountain wildfire season”

SW Europe faces greatest multi-hazard climate risks

Europe drought and climate change
In early December 2015 the European Alps were mostly free of snow during a lengthy dry period. @bberwyn photo.

Flooding, droughts and wildfires all expected to increase

Staff Report

New European climate modeling doesn’t paint a pretty picture for the decades ahead. With global warming, Europe is facing a progressively stronger increase in multiple climate hazards, according to the European Commission’s Joint Research Centre.

Early in the 21st century, reported losses from extreme weather are already at historically high levels, and climate change is likely to increase the risk, the researchers concluded in a new paper presented late April at the European Geosciences Union annual assembly in Vienna. Continue reading “SW Europe faces greatest multi-hazard climate risks”

So how, exactly, does global warming kill forests?

Global warming has killed half a billion trees across the U.S.

Global warming is killing forests around the world. @bberwyn photo.

Staff Report

Scientists tracking massive forest die-offs say a new study may help forest managers learn how to predict which trees will succumb to global warming — and what the implications are for the global carbon balance.

“There are some common threads that we might be able to use to predict which species are going to be more vulnerable in the future,” said University of Utah biologist William Anderegg, explaining that recent tree-killing droughts in the western U.S. were marked more by elevated temperature than by a lack of rainfall.

“These widespread tree die-offs are a really early and visible sign of climate change already affecting our landscapes,” Anderegg said.

More stories on global warming and forests:

Continue reading “So how, exactly, does global warming kill forests?”

Global warming is already affecting wine production

Wine grapes at harvest time in southern France. @bberwyn photo.

NASA, Harvard scientists study wine harvest dates in cool-weather countries

Staff Report

Global warming is changing centuries-old climate patterns that are crucial for wine production in cool-weather regions, a new study from NASA and Harvard concludes. After analyzing climate records and grape harvesting dates from 1600 to 2007, the scientists found that harvests started happening much earlier during the second half of the 20th century.

These shifts were caused by changes in the connection between climate and harvest timing. Between 1600 and 1980, earlier harvests were linked to years with warmer and drier conditions during spring and summer. After that, global warming caused earliers harvests in years without droughts. Continue reading “Global warming is already affecting wine production”

Climate: U.S. West very dry in February

Very dry across the West in February 2016.
Very dry across the West in February 2016.

Where’s El Niño?

Staff Report

El Niño didn’t exactly go gangbusters in southwest Colorado last month, where the key river basins received only about 35 percent of average February precipitation. Statewide mountain precipitation was only slightly better, at 56 percent of normal.

“February in the mountains of Colorado is typically a slightly drier month than compared to say, April. But a dry February like this could have big ramifications should April and May not pan out” said Brian Domonkos, Snow Survey Supervisor with the Natural Resources Conservation Service. Continue reading “Climate: U.S. West very dry in February”

Climate: Study sees global warming fingerprint on long-running drought in Mediterranean region

Researchers in the Mediterranean region are trying to guard against climate change impacts by cultivating numerous varieties of native olives to determine which might best be able to withstand heatwaves and drought. @bberwyn photo.

Current regional dry spell appears to be the most severe in more than 900 years

Staff Report

The Mediterranean region may already be feeling the impacts of human-caused climate change, according to a new tree ring study that compared an ongoing drought in the region with historic climate conditions.

Based on the findings, NASA scientists concluded the current drought — spread across Cyprus, Israel, Jordan Lebanon, Palestine, Syria and Turkey — is the worst in at least 900 years. Nearly all climate models project that global warming will dry up the Mediterranean region. Continue reading “Climate: Study sees global warming fingerprint on long-running drought in Mediterranean region”

Climate: El Niño not a drought-buster for California yet

Exceptional drought is still widespread across California with a few more months of the rainy season ahead.

Will spring deliver big rains?

Staff Report

Although there are still a few months left in the rainy season, this year’s El Niño hasn’t exactly been the drought buster California was hoping for. Thus far, plentiful precipitation in the northern part of state will go a long way toward replenishing reservoirs, but central and southern California have remained relatively dry.

The “exceptional drought” footprint is now spread across about 38 percent of the state, as compared to 45 percent three months ago, and precipitation in the key snowpack areas of the Sierra Nevada has been about average. Farther south, especially in the L.A. Basin, precipitation is still well below average for the rainy season to date.

That may be due to the fact that the distribution of warm water across the Pacific Ocean is quite different than during past El Niños that brought more widespread heavy precipitation to California. Continue reading “Climate: El Niño not a drought-buster for California yet”