weather signal
51Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …
52Old Weather — URL oldweather.org Commercial? No Type of site Volunteer Scientific Project Registration Yes Available language(s) English …
53National Weather Service Chicago, Illinois — National Weather Service Chicago currently known as National Weather Service Romeoville is a weather forecast office responsible for monitoring weather conditions for 23 counties in Northern Illinois, the Chicago metropolitan area and Northwest… …
54Canadian weather radar network — The Canadian weather radar network consist of 31 weather radars spanning across Canada s most populated regions. Their primary purpose is the early detection of precipitation, its motion and the threat it poses to life and property. Each has a… …
55The Weather Network — MétéoMédia Création 1er septembre 1988 Propriétaire Pelmorex Langue Français Pays d origine …
56Mobile phone signal — A display of bars on a mobile phone screen A mobile phone signal (or reception) is the strength (measured in dBm) of the connection to the mobile phone with its network. Depending on various factors, such as proximity to a tower, obstructions… …
57Radar signal characteristics — A Radar System uses a Radio Frequency electromagnetic signal reflected from a target to determine information about that target. In any radar system, the signal transmitted and received will exhibit many of the characteristics described below.The …
58Wind signal — In general, any signal announcing information concerning winds, and esp. the expected approach of winds whose direction and force are dangerous to shipping, etc. The wind signal system of the United States Weather Bureau consists of storm,… …
59fog signal — any of various types of signal used as a warning by vessels navigating in fog or mist. [1750 60] * * * sound or light signal emitted in fog or mist by lighthouses and buoys to indicate a shoreline, channel, or dangerous stretch of water and …
60Extreme weather events of 535–536 — The extreme weather events of 535–536 were the most severe and protracted short term episodes of cooling in the Northern Hemisphere in the last 2,000 years.[1] The event is thought to have been caused by an extensive atmospheric dust veil,… …
