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 Multi-Risk Vigilance Card is a product developed by the Ministry of Public Security (MSP) that brings together warnings and reports on phenomena of natural origin that may have consequences on the safety of citizens, goods and services to the population. It is updated continuously automatically. It allows for continuous monitoring of the province's territory in relation to dangerous natural phenomena. Environment and Climate Change Canada weather warnings for blizzard, fog, freezing rain, rain, fog, freezing rain, rain, snow, hail, hurricanes, tropical storms, winter storms, severe storms, tornadoes, tornadoes, storm winds, storm winds, strong winds, strong winds, strong winds, hurricane force winds, high winds, hurricane-force winds, heat waves, and all weather events whose severity* is greater than or equal to moderate; This data comes from the company's National Alert Aggregation and Dissemination System (ADNA) Pelmorex private. The information conveyed in the alerts complies with the standards of the Common Alert Protocol (PAC).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

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.