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Slight Chance

In probability of precipitation statements, usually equivalent to a 20 percent chance.

Sludge

Gooey solid mixture of bacteria and virus laden organic matter, toxic metals, synthetic organic chemicals, and solid chemicals removed from wastewater at a sewage treatment plant.

Small Craft

Generally a vessel under 65 feet in length.

Small Craft Advisory

Winds in excess of 22 knots (25 mph), and less than 34 knots (39 mph), that may cause hazardous conditions for operators of small vessels.

Small Hog Operation Payment (SHOP)

A $50 million program, announced January 12, 1999, that makes direct farm payments of up to $5 per hog on the first 500 hogs marketed during the last 6 months of 1998. Operations marketing 1,000 or more hogs during the 6 month period, and those with 1998 gross income greater than $2.5 million were not eligible. The actual payment rate was determined after signup by dividing $50 million by the total eligible. The program was implemented under Section 32 authority to make direct payments to farmers to reestablish their purchasing power. This was the first time in the previous 38 year history of the law that Section 32 funds were used for direct payments.

Smog

Pollution formed by the interaction of pollutants and sunlight (photochemical smog), usually restricting visibility, and occasionally hazardous to health.

Snow

A form of precipitation composed of ice crystals.

Snow Advisory

An advisory issued when snow is expected to create hazardous or restricted travel conditions, but not as severe as expected with a winter storm.

Snow course

A line or series of connecting lines along which snow samples are taken at regularly spaced points.

Snow density

Ratio between the volume of melt water derived from a sample of snow and the initial volume of the sample. This is numerically equal to the specific gravity of the snow.

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