Understand Weather: Practical Guides | WXObservation

Do Mammatus Clouds Mean a Tornado Is Coming?

J P — Mon, 31 Aug 2026 02:26:12 +0000

Mammatus clouds can accompany strong thunderstorms but do not mean a tornado is coming. Learn what the pouches are, when they appear, and which clues matter for safety.

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Derecho vs. Bow Echo vs. Squall Line: What Is the Difference?

J P — Fri, 14 Aug 2026 01:34:01 +0000

A clear, practical comparison of squall lines, bow echoes, and derechos, including radar structure, wind hazards, warning language, and common misconceptions.

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Why Is Autumn Called Fall? The History of Both Season Names

J P — Sat, 17 Aug 2019 01:23:45 +0000

Autumn and fall name the same season. Autumn came through French and Latin. Fall grew from the English phrase “fall of the leaf.”

The post Why Is Autumn Called Fall? The History of Both Season Names appeared first on WX Observation.

Can Animals Predict the Weather? What the Science Actually Shows

J P — Fri, 04 Jan 2019 03:35:43 +0000

Animals can respond to pressure, wind, humidity, sound, and other environmental cues. That is not the same as reliably forecasting a storm before instruments can detect it.

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Ice Pillars Explained: What Causes Light Pillars in the Sky?

J P — Tue, 01 Jan 2019 21:07:35 +0000

Those glowing columns above streetlights are not beams shooting upward. They are a beautiful optical illusion made by light reflecting from countless ice crystals.

The post Ice Pillars Explained: What Causes Light Pillars in the Sky? appeared first on WX Observation.

What Causes Heat Lightning? The Distant-Storm Myth Explained

J P — Mon, 22 Jan 2018 01:44:21 +0000

Heat lightning is ordinary lightning from a distant storm. Learn why you can see the flash but not hear thunder, and when to seek shelter.

The post What Causes Heat Lightning? The Distant-Storm Myth Explained appeared first on WX Observation.

What Does WX Mean? Why Weather Is Abbreviated “WX”

J P — Sat, 30 Dec 2017 15:18:04 +0000

WX means weather in aviation, radio, forecasting, and weather-observer shorthand. The usage is well established. The exact story behind the letter X is less certain.

The post What Does WX Mean? Why Weather Is Abbreviated “WX” appeared first on WX Observation.

What Is Freezing Fog? How It Forms and Why It Is Dangerous

J P — Tue, 26 Dec 2017 14:55:47 +0000

Freezing fog is ordinary-looking fog made hazardous by supercooled droplets that freeze on contact. Here is how it differs from ice fog, frost, and frozen fog.

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Weather vs. Climate: What’s the Difference?

J P — Wed, 20 Dec 2017 21:35:42 +0000

Weather describes the atmosphere over minutes to days. Climate describes the patterns, ranges, and extremes that emerge over decades.

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What Do Hurricane Hunters Do? Aircraft, Instruments, and Missions

J P — Sat, 18 Nov 2017 02:27:20 +0000

Hurricane Hunters fly instrumented aircraft into and around tropical cyclones to collect the direct observations forecasters cannot get from satellites alone.

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