Winter Storm for south-central U.S.; Critical Fire Weather in the West; Tracking Zeta

Heavy snow will continue to spread south along the Rockies through Monday. An area of freezing rain and sleet is forecast to develop over portions of the southern Plains to start the week. Meanwhile, dry and gusty conditions will continue critical fire weather conditions from California into southern New Mexico. Zeta is forecast to become a hurricane tracking north across the Gulf of Mexico. Read More >

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Getting The Word | Climatology | Winter Storms | Definitions

The National Weather Service uses the following definitions when describing winter weather:

An advance statement that severe winter weather conditions are possible within the next day or two.

An urgent statement that severe winter weather conditions have begun or will begin within about 12 hours.

Advisory

A statement that winter weather conditions are imminent or occurring. These conditions will cause significant inconvenience, and may become hazardous or life-threatening if safety tips are not followed.

Heavy Snow

Snowfall which accumulates to a depth of at least 4 inches in 12 hours or 6 inches in 24 hours.

Sleet

Pellets of ice composed of frozen or mostly frozen raindrops, or snowflakes which have melted and refrozen.

Freezing Rain/Freezing Drizzle

Rain or drizzle which falls as liquid then freezes when it strikes the ground or other surface.

Frost

The formation of thin ice crystals on the ground or other surfaces.

Wind Chill

A cooling effect caused when wind blows across exposed skin.

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Winter Storm for south-central U.S.; Critical Fire Weather in the West; Tracking Zeta

NWS Ft. Worth