Weather Glossary: Watches, Warnings and Advisories
Watch - The potential exists for a significant/dangerous weather event.
Warning A significant/dangerous weather event is imminent.
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What is Lake Effect Snow - Lake Effect Snow Storms - Winter Snow Storm Warnings and Advisories ...
Warnings - forecasts of hazardous weather, usually for the next 12 to 24 hours, including:
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floods (warnings of minor, moderate or major flooding for most river basins) ...
Warnings: Issued when a hazardous weather is occurring or about to occur.
Watches: Issued when the risk of hazardous weather is significant.
Waterspout: A type of whirlwind that forms underneath cumulus clouds over a large body of water.
Weather warnings
In Australia, state by state warnings of impending or actual weather that has the potential to cause loss of life or damage to property. These are issued by the BoM.
Wedge ...
Warnings of flight hazards, such as turbulence, icing, low clouds and reduced visibility remain most critical for the protection of life and property over the United States from the earth's surface up to 24,000 feet.
Weather Warnings:Weather Warnings are issued by the National Weather Service when hazardous weather is possible or
has occurred or the atmospheric conditions are considered right for severe weather to occur.
Avalanche warnings have been issued for the southern San Juan Mountains and the Grand Mesa in western Colorado.
Temperatures will be quite varied Tuesday, ranging from around 20 across Weld County to the mid 40s across Douglas County.
Marine Wind Warnings - Small Craft Warning - issued if winds are forecast to be in the range of 20 to 33 knots inclusive.
Gale Warning - issued if winds are forecast to be in the range of 34 to 47 knots inclusive.
When tornado warnings are issued, members of the public are advised to get into sheltered areas. In most buildings, it is recommended to seek shelter in a central, windowless room or corridor, below ground if possible.
Gale warningSustained wind speeds from 34 to 47 knots (39 to 54 mph). Glazea layer or coating of ice that is generally smooth and clear, and forms on exposed objects by the freezing of liquid raindrops.
and/or hail 3/4 inch or more in diameter; and/or waterspouts affecting areas included in a Coastal Waters Forecast, a Nearshore Marine Forecast, or an Great Lakes Open Lakes Forecast that is not adequately covered by existing marine warnings.
MSI includes navigational warnings, meteorological warnings and forecasts, and other urgent safety related information GMDSS goals are defined in the International Convention for The Safety Of Life At Sea (SOLAS).
Flash Flood Statement(FFS) In hydrologic terms, a statement by the NWS which provides follow-up information on flash flood watches and warnings.
The Center prepares and distributes hurricane watches and warnings for the general public, and also prepares and distributes marine and military advisories for other users. During the "off-season" NHC provides training for U.S.
Flood forecasts and warnings are not issued for data points (see /forecast point/).DATACOLIn hydrologic terms, the Software System that supports RFC gateway functions.
Warning stage The stage on a fixed river gauge at which it is necessary to begin issuing warnings or river forecasts if adequate precautionary measures are to be taken before flood stage is reached.
Warnings state a particular hazard or imminent danger, such as tornadoes, severe thunderstorms, flash and river floods, winter storms, heavy snows, etc.
Intermediate advisories will not be used to issue tropical cyclone watches or warnings, but it may be used to clear all or portion of a watch or warning area. The content will be similar to that of the scheduled advisory.
In the days before adequate warnings, the storm caught everyone off guard. The Tri-State Tornado killed 689 people, injured over 2,000 and caused 17 million dollars in damage - a very large figure in 1925! ...
The National Weather Service will issue this statement:
1) To provide follow-up information on Special Marine Warnings and to cancel all or part of a warning.
2) To describe short duration, nonsevere, ...
Heat Index The National Weather Service provides public advisories and warnings when the combination of temperature and humidity becomes high enough to pose a health risk.
In summary, supercells are extremely dangerous, but excellent warnings are possible once the storm has been properly identified.
In these situations, when river forecasts are available, flood warnings and flood statements are used. Dams may also fail catastrophically during a heavy rainfall event or earthquake, resulting in a very dangerous flash flood-type situation.
Official information issued by tropical cyclone warning centers describing all tropical cyclone watches and warnings in effect along with details concerning tropical cyclone locations, intensity and movement, and precautions that should be taken.
National Weather Service (NWS) - The National Weather Service (NWS) - provides weather, hydrologic, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, ...
National Hurricane Center - They issue watches, warnings, forecasts, and analyses of hazardous tropical weather.
National Weather Service - The federal agency that provides weather, hydrologic, and climate forecasts and warnings for the United States.
Work on CFC alternatives began in the late 1970s after the first warnings of CFC damage to stratospheric ozone.
TROPICAL PREDICTION CENTER (TPC) A division of the National Centers for Environmental Prediction, the Center issues watches, warnings, forecasts, ...
Hurricane warnings identify coastal areas where winds of at least 74 mph are expected.
flood forecast"Forecasts used to provide warnings for people to evacuate areas threatened by floods, and to help in the operation of flood control structures.
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NOAA WEATHER RADIO (NWR): The voice of the National Weather Service with 24-hour-a-day broadcasts of weather information, forecasts and warnings. It is programmed from local National Weather Service offices.
Warning - Issued when hazardous weather or hydrologic conditions exist, are imminent or are highly likely to occur. Warnings are issued for conditions that pose a threat to life or property.
NOAA WEATHER RADIO (NWR): Continuous, 24 hour a day VHF broadcasts of weather observations and forecasts directly from National Weather Service offices. A special tone allows certain receivers to alarm when watches or warnings are issued.
Statement- Provides the public with information concerning the status of existing warnings.
Station Identifier- A group of four alphabetic characters used to identify a location that makes weather observations.
NWS: The National Weather Service, administered by the U.S. Department of Commerce, and responsible for the collection of weather data, the routine production of weather forecasts, and the issuance of weather warnings within the U.S.
National Weather Service (NWS) The agency of NOAA responsible for weather data acquisition, data analysis, forecast dissemination, and storm watches and warnings.
EAS - Emergency Alert System. Originally part of civil defense, a government based alert system where emergency broadcasts can be made to the public. This can be used for both weather warnings as well as warfare preparation.
sustained surface winds: Subtropical depressions have surface winds less than 18 m s-1 (35 knots), while subtropical storms have surface winds greater than or equal to 18 m s-1. While these storms are not given names, forecasters do issue warnings ...
 See also: Warning, Weather, High, Air, Cloud
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