Glossary of Weather Terms – Beginning with “O”

Curious about what an occluded front is, how orographic lift causes heavy mountain rain, what an outflow boundary does to severe weather, or what an omega block weather pattern means for weeks of extreme heat or cold?

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Glossary of Weather Terms – Beginning with “P”

Wondering what the polar vortex is and why it causes extreme cold, what a PDS tornado watch means for your safety, the difference between partly cloudy and mostly cloudy, or what a pyrocumulonimbus cloud does to wildfire behavior?

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Glossary of Weather Terms – Beginning with “Q”

Wondering what a quasi-stationary front is and why it causes catastrophic flooding, what QPF means in a weather forecast, or how the Quasi-Biennial Oscillation influences winter cold outbreaks?

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Glossary of Weather Terms – Beginning with “R”

Wondering about a rip current warning, how to survive a rip current, or what the rain shadow effect does to precipitation? Need relative humidity explained or want to understand what NEXRAD radar actually shows?

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Glossary of Weather Terms – Beginning with “S”

Looking up the Saffir-Simpson hurricane scale, the difference between a severe thunderstorm warning vs tornado warning, what a supercell is, or what a storm surge warning or snow squall warning means for your safety?

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Glossary of Weather Terms – Beginning with “T”

Wondering about the difference between a Tornado Watch and Tornado Warning, what a Tornado Emergency means, or how a Tropical Storm becomes a Hurricane?

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Glossary of Weather Terms – Beginning with “U”

Curious about what an updraft is inside a thunderstorm, what the urban heat island effect means for your city's forecast, what the UV index numbers actually mean, how an upper level trough triggers severe weather, or what causes upslope fog along the Rockies?

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Glossary of Weather Terms – Beginning with “V”

Curious about what virga is and why it creates a hidden aviation hazard, how visibility is measured and what triggers a Dense Fog Advisory, what vorticity means in meteorology, how vertical wind shear drives tornado development, or what causes valley fog?

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Glossary of Weather Terms – Beginning with “W”

Confused about the difference between a Winter Storm Warning, Winter Weather Advisory, and Blizzard Warning? Wondering what a wind chill chart really means for frostbite risk, how a waterspout differs from a tornado, what wind shear does to thunderstorms, or what a whiteout looks like on the highway?

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