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Freezing Rain Advisory
A freezing rain advisory was an advisory issued by the National Weather Service in the United States when freezing rain or freezing drizzle was expected to cause significant inconveniences, but did not meet warning criteria (typically greater than of ice accumulation). On October 2, 2017, issuance of the freezing rain advisory was discontinued. A winter weather advisory is now issued when the above criteria are forecast to be met. However, ice storm warnings continue to be issued. Example Freezing Rain Advisory URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GOODLAND KS 248 AM MST THU DEC 18 2008 ...FREEZING DRIZZLE AND FREEZING FOG EXPECTED TO DEVELOP TODAY... .AN UPPER LEVEL STORM SYSTEM WILL MOVE INTO THE CENTRAL HIGH PLAINS TODAY. AS WARM AIR ALOFT OVERRIDES COLD AIR AT THE SURFACE...FREEZING DRIZZLE AND FREEZING FOG WILL DEVELOP. WHILE WIDESPREAD ACCUMULATIONS OF ICE ARE NOT ANTICIPATED...TRAVEL COULD BECOME HAZARDOUS AS ICY SPOTS DEVELOP ON THE ROADS A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Weather Service
The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information. It is a part of the National Oceanic and Atmospheric Administration (NOAA) branch of the United States Department of Commerce, Department of Commerce, and is headquartered in Silver Spring, Maryland, Silver Spring, Maryland, within the Washington metropolitan area. The agency was known as the United States Weather Bureau from 1890 until it adopted its current name in 1970. The NWS performs its primary task through a collection of national and regional centers, and 122 local List of National Weather Service Weather Forecast Offices, Weather Forecast Offices (WFOs). As the NWS is an agency of the U.S. federal government, most o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freezing Rain
Freezing rain is rain maintained at temperatures below freezing by the ambient air mass that causes freezing on contact with surfaces. Unlike a mixture of rain and snow or ice pellets, freezing rain is made entirely of liquid droplets. The raindrops become supercooled while passing through a sub-freezing layer of air hundreds of meters above the ground, and then freeze upon impact with any surface they encounter, including the ground, trees, electrical wires, aircraft, and automobiles. The resulting ice, called glaze ice, can accumulate to a thickness of several centimeters and cover all exposed surfaces. The METAR code for freezing rain is FZRA. A storm that produces a significant thickness of glaze ice from freezing rain is often referred to as an ice storm. Although these storms are not particularly violent, freezing rain is notorious for causing travel problems on roadways, breaking tree limbs, and downing power lines from the weight of accumulating ice. Downed power lines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Storm Warning
An ice storm warning is a hazardous weather statement issued by the Weather Forecast Offices of the National Weather Service in the United States which indicates that freezing rain produces a significant and possibly damaging accumulation of ice on surfaces. The criteria for this warning vary from state to state, but typically an ice storm warning will be issued any time more than of ice at peak is expected to accumulate in an area, else a freezing rain or drizzle advisory is issued; in some areas, the criterion is instead. Prior to October 2017, a freezing rain advisory or freezing drizzle advisory was issued when a small amount of icing was possible. In Canada, a freezing rain warning has the same meaning. Example of an ice storm warning 632 WWUS44 KLZK 200235 WSWLZK URGENT - WINTER WEATHER MESSAGE National Weather Service Little Rock AR 835 PM CST Tue Feb 19 2019 ARZ003-012-013-200600- /O.UPG.KLZK.WW.Y.0004.000000T0000Z-190220T0600Z/ /O.NEW.KLZK.IS.W.0001.190220T0235Z-1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter Weather Advisory
A winter weather advisory (originally identified as a Traveler's Advisory until the 2002-03 climatological winter when officially renamed, and informally as such by some local television stations thereafter) is a hazardous weather statement issued by Weather Forecast Offices (WFO) of the National Weather Service in the United States when one or more types of winter precipitation—snow, rain and snow mixed, freezing rain, sleet, graupel, etc.—presenting a hazard, but not expected to produce accumulations meeting storm warning criteria (usually below 10 cm / 4 inches), are forecast within 36 hours of the expected onset of precipitation or are occurring in the advisory's coverage area. A Winter Weather Advisory is similar to a significant weather advisory, but a winter weather advisory is an official product and is specific to cold weather. A similar warning is issued by Environment and Climate Change Canada's Meteorological Service of Canada offices. The advisory criteria vary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Severe Weather Terminology (United States)
This article describes severe weather terminology used by the National Weather Service (NWS) in the United States. The NWS, a government agency operating as an arm of the National Oceanic and Atmospheric Administration (NOAA) branch of the United States Department of Commerce (DoC), defines precise meanings for nearly all of its weather terms. This article describes NWS terminology and related weather scales used by the agency. Some terms may be specific to certain cities or regions. Specific Area Message Encoding (SAME) product codes assigned to each term for NOAA Weather Radio (NWR) broadcasts are included in parentheses following the title of the described alert type if used; products that do not have a specified code are identified where applicable as Non-Precipitation Warnings/Watches/Advisories (NPW), Coastal Flood Warnings/Watches/Advisories (CFW), Marine Weather Statement (MWS), Surf Discussion (SRD) or Winter Weather Warnings/Watches/Advisories (WSW) as defined by NOAA. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
