Author Archives: WeatherGuys Editor

When does fall begin?

Even the least observant person has probably recognized by now that the days are growing shorter.

In fact, on Friday at 3:02 p.m., we will reach the autumnal equinox and the night will be as long as the day for the first time since late March. Continue reading

Category: Meteorology, Seasons

Comments Off on When does fall begin?

What are the leading threats from hurricanes?

With all the news about hurricanes over the past couple of weeks we’ve been asked a lot of questions about the various threats posed by these storms.

Hurricane Harvey is a clear example of the damage that long-duration heavy rains can inflict. Hurricane Irma provides an example of the destructive power of the winds associated with these storms. Continue reading

Category: Severe Weather, Tropical, Weather Dangers

Comments Off on What are the leading threats from hurricanes?

Why is lightning white?

Lightning is a huge electrical discharge.

Static charges form in a storm composed of ice crystals and liquid water drops. Turbulent winds inside the storm cause particles to rub against one another, causing electrons to be stripped off, making the particles either negatively or positively charged. Continue reading

Category: Meteorology, Phenomena, Severe Weather

Comments Off on Why is lightning white?

Is UW-Madison involved in hurricane forecasting?

Hurricane Harvey is the first hurricane to make landfall in the United States since Wilma hit Florida in October 2005.

Harvey made landfall early Saturday morning as a Category 4 storm with estimated sustained winds of 130 mph and gusts to 150 mph. Continue reading

Category: Meteorology, Severe Weather, Tropical

Comments Off on Is UW-Madison involved in hurricane forecasting?

Why is the sky blue?

All the attention of today’s eclipse has raised interest in the sky’s color.

To understand why the sky is blue, we need to understand a little about light. Light is a form of electromagnetic energy. This form of energy does not need matter to propagate. Continue reading

Category: Meteorology, Phenomena

Comments Off on Why is the sky blue?