The U.S. Naval
Observatory
Determine sunrise or sunset for any location in the country. Find
out when the phases of the moon will occur at any pint in the
future. The
Sky This Week describes what planets can be viewed and what
other astronomical phenomena can be observed. The U.S. Naval Observatory
is the preeminent authority in the areas of time keeping and celestial
observing, and determining and distributing the timing and astronomical
data required for accurate navigation and fundamental astronomy.
Vaisala
Vaisala operates the Network Control Center for the U.S. National
Lightning Detection Network®, and supplies lightning information
to the National Weather Service, aviation, and other users.
NOAA Great
Lakes Environmental Research Laboratory
Data, information, and research on the Great Lakes.
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USGS Great
Lakes Science Center
Information and research on the biological resources of the Great
Lakes.
USDA National
Agricultural Statistics Service
The mission of the NASS is to provide timely, accurate, and useful
statistics in service to U. S. agriculture. Statistics and information
are available for virtually every major crop grown in the U.S.
The site contains links to individual state offices which provide
more specific information on agriculture in their respective states.
Weekly
Weather and Crop Bulletin
Recent information on weather and agriculture in the U.S. and
in major international agricultural areas. The electronic version
is posted by 12:00 p.m. Eastern Time Wednesdays.
Illinois
Rivers Decision Support System - ISWS
Illinois Water Supply Planning Site
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