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A drop in atmospheric pressure that can indicate an approaching storm and likely intensification of weather conditions.

Wispy, thin clouds high in the sky that indicate fair weather but suggest a change in weather could occur within the next 24 hours.

Gray, uniform clouds that often cover the entire sky like a blanket, leading to overcast conditions and possible drizzle or light rain.

Large, towering clouds that are associated with thunderstorms and severe weather conditions including heavy rain, lightning, and even tornadoes.

Cirrus clouds that stream in the sky resembling a horse's tail; suggest an approaching storm system within the next two days.

Fluffy, white clouds that typically indicate fair weather but can grow into larger storm systems.

A red sky in the west during the evening indicates that good weather is likely as high-pressure systems usually bring fair weather.

Large, long-period swells can be an early indication of a distant storm and potentially warn of its size and strength.

Caused by ice crystals in the upper atmosphere, a ring around the sun or moon can indicate an approaching front with rain or snow.

Dew on the grass in the morning indicates clear skies overnight and stable weather; a lack of dew can suggest an approaching storm system.

Smoke from a chimney or fire that rises straight up suggests high pressure and stable weather conditions.

Animals often change their behavior based on pressure changes; birds flying low or farm animals gathering may indicate bad weather approaching.

Leaves that fall when there is little to no wind can suggest a low-pressure system is approaching, possibly bringing rain.

A sky with a green hue, often caused by sunlight refracting through a rain-heavy atmosphere, which can be a sign of an impending tornado or severe thunderstorm.