Category Archives: Climate

What is Groundhog Day and do the forecasts work?

Long before computers, the Weather Channel and the Internet, humans needed weather forecasts. Farmers and sailors particularly needed to know if storms were approaching.

Over time, various folklore forecasts, often in the form of short rhymes, were devised and passed down through the generations. Although memorable, the folklore forecasts are of uneven quality—some good, others bad. Continue reading

Category: Climate, Meteorology, Seasons

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What is a 100-year flood?

A flood occurs when water flows into a region faster than it can be stored in a lake or reservoir, absorbed into the soil, or removed by runoff into a drainage basin.

There are several conditions that can result in flooding: a long-lasting rainfall over a watershed, intense thunderstorms, or rainfall that causes rapid snow melt. Continue reading

Category: Climate, Meteorology, Severe Weather

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When does the first freeze occur in fall?

The cooldown that we enjoyed over the weekend, after the prolonged warm and humid spell that began September, got us thinking about the inevitable first morning with a temperature below 32 degrees.

We are less than two weeks away from the autumnal equinox, the last day until late March on which the day is at least as long as the night. Continue reading

Category: Climate, Seasons

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How was our summer weather?

The average global temperature of July set highs — it was the warmest month on record since record keeping began in 1880.

The observed ocean surface temperature was the highest for any month in the 1880-2015 record period. The average temperatures over land were also above the average for the 20th century, ranking as the sixth-warmest July since 1880. Continue reading

Category: Climate, Seasons

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Are presidential candidates’ views on climate change correct?

The observational evidence that the Earth is warming is overwhelming and unmistakable.

Surface observations of temperature over land and ocean have shown that all but one of the 15 warmest years on record have occurred since 2000. the average length of the ice season on a collection of widely distributed Northern Hemisphere lakes, each with at least 150 years of continuous record, has decreased by over two weeks. The areal extent of the Northern Hemisphere’s wintertime cold pool has systematically shrunk in the last two winters recording the smallest seasonal average cold pool areas since records began in 1948-1949. Continue reading

Category: Climate, Uncategorized

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