Study: No such thing as ‘normal’ weather in Colorado

Extreme storms can happen outside expected times

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A monsoon season lighting strike in Summit County. @bberwyn photo.

Staff Report

FRISCO — A new study led by Colorado-based scientists seems to reinforce the old saying that, when it comes to the state’s weather, there’s no such thing as normal.

The research aimed to track seasonal and geographical patterns of extreme weather events, especially the monster storms that create headaches for emergency responders and resources managers. But pinpointing those trends is not easy the weather experts found. Continue reading

Global warming: New NOAA study eyes link between Arctic meltdown and extreme weather in mid-latitudes

A warming Arctic is changing the configuration of the jet stream, which affects mid-latitude weather. GRAPHIC COURTESY NOAA.

A warming Arctic is changing the configuration of the jet stream, which affects mid-latitude weather. GRAPHIC COURTESY NOAA.

‘Too soon to tell …’

Staff Report

*More Summit Voice stories on this subject are here

FRISCO — There’s been lots of speculation and some early research on a possible link between soaring temperatures in the Arctic and extreme weather in North America and Europe, but the jury is still out, according to scientists with the National Oceanic and Atmospheric Administration.

NOAA’s James Overland was part of an international team that took a close look at possible connections and concluded that more research is needed.

“We are in the pre-consensus stage of a theory that there are links between the rapid warming of the Arctic and some severe weather events since 2007,” said Overland, lead author of the new study, “The melting Arctic and Mid-latitude weather patterns: Are they connected?” Continue reading

Global warming: Risk of exposure to extreme heat waves is growing dramatically

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Warm enough!

Population growth in warm zones is a big part of the equation

Staff Report

FRISCO — Extreme heat kills more people than any other type of extreme weather, and that mortality could increase significantly in coming decades as the Earth warms under a blanket of heat-trapping greenhouse gases.

Americans’ exposure to extreme heat could increase  four- to six-fold by 2050, a new study concludes, explaining that it’s not just the heat — the country’s population is  growing especially fast in the hottest regions of the country. Continue reading

Is the West’s power grid vulnerable to climate change?

‘In their development plans, power providers are not taking into account climate change impacts …’

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Renewable energy sources may be less susceptible to climate change impacts.

Staff Report

FRISCO — The Western power grid is vulnerable to projected global warming impacts, and should be climate-proofed to minimize the risk of future power shortages, according to a new study by  two Arizona State University engineers.

Their findings show that extreme heat waves and droughts and related changes in precipitation, air and water temperatures, air density and humidity, are all factors in the energy equation, and that those changes could significantly constrain the energy generation capacity of power plants. Continue reading

Climate: April ends up as 17-warmest on record

Heat shifts from Far West to Southeast

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Much of the U.S. was warmer than average in April 2015.

Staff Report

FRISCO — Last month ended up as the 17-warmest April on record, with an average temperature for the 48 contiguous states at 53.1 degrees Fahrenheit, making it the warmest April since 2012, according to the new monthly State of the Climate summary from NOAA’s National Climatic Data Center. Continue reading

UK scientists find big, fat global warming fingerprint

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The chance of extreme heatwaves is increased dramatically by human-caused global warming.

Greenhouse gas buildup raises chances of record-breaking warmth

Staff Report

FRISCO — There’s little doubt that global warming will lead to, well, warmer weather in most places.

But scientists in the UK said they were surprised at how clearly they could see the fingerprint of greenhouse gas emissions in a recent study that projects a big increase in the likelihood of record-breaking warm years. Continue reading

Climate: Drought ‘donut’ circles Colorado

Forecast for wet spring helps ease concerns

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A drought donut around Colorado?

By Bob Berwyn

FRISCO — Above-average reservoir storage and forecasts for a wet spring season could help keep Colorado out of drought trouble — even though statewide precipitation has been below average for the entire water year to-date, starting last October. As of mid-March, 40 percent of Colorado was classified as being in severe drought conditions, with only 25 percent of the state drought-free. Continue reading

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