Daily Tide and Current Prediction (http://www.tides.com/mwpred.html)
Tide and current predictions are available for thousands of locations in North and Central America. 

Intellicast (http://www.intellicast.com/)
Offers weekly forecasts in the U.S. and around the world, as well as travel and ski forecasts, and an almanac that breaks weather down by 12 months and 11 regions. 

Interactive Weather Information Network (http://iwin.nws.noaa.gov/iwin/graphicsversion/main.html)
The National Weather Service updates this site every 60 seconds so you get the most up-to-the-minute weather coverage. Also valuable for the weather videos and satellite photos. 

Live Weather Images (http://weatherimages.org/)
Find current weather images, forecast maps, Doppler radars, sunrise/sunset, wind chill values, tide predictions, and much more. 

Make a Tide Prediction (http://tidesandcurrents.noaa.gov/station_retrieve.shtml?type=Tide+Data)
Find tide tables for any area. 

National Hurricane Center (http://www.nhc.noaa.gov)
Contains current and historical cyclone and hurricane information along with a comprehensive FAQ section, glossary, and an explanation of the Saffir-Sampson Hurricane Scale. 

National Snow and Ice Data Center  (http://nsidc.org/)
Site contains an Educational Resource section that includes links to discussions on icebergs, glaciers, and avalanches.  The ColdLinks List provides an even more comprehensive list of snow- and ice-related web sites. 

National Weather Service (http://www.nws.noaa.gov/)
The official government site for local, national, and international weather. 

Nor'east Saltwater Online (http://noreast.com/)
A good source for local weather forecasts and tide information. 

PSC Meteorology Program Cloud Boutique  (http://vortex.plymouth.edu/clouds.html)
Site provides detailed pictures and explanations about basic cloud formations. 

Tide/Current Predictor (http://tbone.biol.sc.edu/tide/sitesel.html)
Extensive listing of tides and currents for locations in the U.S. 

USWX : Weather (http://www.uswx.com/us/wx)
Search for weather information by zip code or location, includes temperature, precipitation, sun and moon rise and set, and more. 

Tornado Project Online (http://tornadoproject.com)
Delivers in-depth information, videos, and data on tornadoes. 

The Weather Channel (http://www.weather.com/)
Where else? Just input the closest U.S. city to you, and get your latest forecast and view current doppler radar. 

WeatherNet (http://cirrus.sprl.umich.edu/wxnet/)
Provides current information and weather links to North American sites. 

WeatherPost (http://www.weatherpost.com/)
Provides coverage of U.S. and international locations. Includes forecasts for 220 countries and 3,600 cities. 

Weather Underground (http://www.wunderground.com)
Provides quick access to climate and weather forecast information searchable by city, state, or zipcode.  Also contains historical weather conditions available through a drop-down box located at the bottom of local forecast pages.