MSC (The Meteorological Service of Canada) has collected historical atmospheric data from 1850 to present and continues to collect this data. The atmospheric data is collected by measuring wind speeds, atmospheric pressure, translation speed of the system, and the coordinate information of the measurement location, and the date/time every six hours. This data is categorized by storm and each storm is given a name and classification based on its maximum wind speed out of its six hour readings. This service delivers all available storm measurement data.

The nowCOAST 'wwa' Web Map Service (WMS) provides layers containing near real-time watches, warnings and advisories from the National Weather Service (NWS). These layers include the latest Tropical Cyclone Track Forecast from the NWS National Hurricane Center (NHC), updated hourly, as well as NWS short-duration warnings (Tornado, Extreme Wind, Severe Thunderstorm, Flood, Flash Flood, and Special Marine Warnings), updated each minute. The The 'wwa' WMS is one of several map services provided by NOAA's nowCOAST project (http://nowcoast.noaa.gov). For further layer information such as layer icons, legend graphics, layer descriptions, and valid timestamps, see the nowCOAST 'LayerInfo Web Service' description page at: http://nowcoast.noaa.gov/help/layerinfo.shtml. For more information about nowCOAST's available Web Map Services, see the nowCOAST Map Services information page at: http://nowcoast.noaa.gov/help/mapservices.shtml. nowCOAST is a product of the NOAA/NOS/OCS Coast Survey Development Laboratory.