Category Archives: Meteorology

Where are we on hurricane season thus far?

Posted on August 3, 2020 by WeatherGuys Editor

The official season stretches from June 1 through Nov. 30. One measure of the activity of a season is the number of named storms — those that reach or exceed sustained winds of 39 mph — that season accrues.

This year, for the sixth year in a row, Atlantic tropical storms formed before the official start of the season with Arthur and Bertha developing in May. Continue reading →

Category: Meteorology, Severe Weather, Tropical

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What is the heat index?

Posted on July 27, 2020 by WeatherGuys Editor

The heat index indicates how hot it feels. It is expressed as a function of air temperature and the relative humidity.

The heat index temperature is for standing in the shade and light winds; when exposed to direct sunlight, the heat index value can be increased by up to 15 degrees F. Continue reading →

Category: Meteorology, Seasons

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Winter in July?

Posted on July 20, 2020 by WeatherGuys Editor

On more than one occasion in this column we have commented on the areal extent of air colder than 23 degrees about 1 mile above the ground as a measure of the extremity of winter.

In the middle of January, about 68 million square kilometers of the Northern Hemisphere are covered by air that cold at that level. Between about July 5 and July 20 that area shrinks to zero, and the complete absence of such air lasts only a very few days. Continue reading →

Category: Meteorology, Seasons

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What is the heat index?

Posted on July 13, 2020 by WeatherGuys Editor

The heat index indicates how hot it feels.

It is expressed as a function of air temperature and the relative humidity. The heat index temperature is for standing in the shade and light winds; when exposed to direct sunlight, the heat index value can be increased by up to 15 degrees. Continue reading →

Category: Meteorology, Seasons, Severe Weather

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What is mud rain?

Posted on July 6, 2020 by WeatherGuys Editor

Mud rain is rain that contains a noticeable concentration of particles of sand or dust. The soil can be of local origin or it can originate from very distant regions. As rain falls through the dust layer, the raindrops collect … Continue reading →

Category: Meteorology, Phenomena

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