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The most common tone, "alert", is widely used by municipalities to warn citizens of impending severe weather, particularly tornadoes which have earmarked the sirens as "Tornado Sirens". This practice is nearly universal in the Midwest and parts of the Deep South , where intense and fast-moving thunderstorms that can produce tornadoes occur ...
The electrically powered cylinder siren used to alert the town of Lowestoft during World War Two. The earliest way of summoning volunteer firemen to a fire was by ringing of a bell, either mounted atop the fire station, or in the belfry of a local church. As electricity became available, the first fire sirens were manufactured.
An example of a tornado warning polygon issued by the National Weather Service. A tornado warning (SAME code: TOR) is a public warning that is issued by weather forecasting agencies to an area in the direct path of a tornado, or a severe thunderstorm capable of producing one, and advises individuals in that area to take cover.
It contains information about who originated the alert (the president, state or local authorities, the National Weather Service (NOAA/NWS), or the broadcaster), a short, general description of the event (tornado, flood, severe thunderstorm), the areas affected (up to 32 counties or states), the expected duration of the event (in minutes), the ...
The categorical forecast in the Day 1-3 Convective Outlooks—which estimates a severe weather event occurring within 25 miles (40 km) of a point and derives the attendant risk areas from probability forecasts of tornadoes, damaging winds, and large hail on Days 1 and 2, and a combined severe weather risk on Day 3—specifies the level of ...
AccuWeather utilizes severe weather areas to alert the general public. The most common range from some (yellow) risk, where potentially damaging storms will affect part of the area, to moderate ...
At 1115 PM CDT, a confirmed large and extremely dangerous tornado was located over Darien, or over far east Woodridge, moving east at 45 mph. Radar confirms debris with this tornado moving over populated areas. This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW! HAZARD...Damaging tornado. SOURCE...Radar confirmed tornado.
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