This article needs additional citations for verification .(July 2022) |
The National Severe Weather Warning Service (shortened to NSWWS) is a service provided by the Met Office in the United Kingdom. The purpose of this service is to warn the public and emergency responders of severe or hazardous weather which has the potential to cause danger to life or widespread disruption. This allows emergency responders to put plans into place to help protect the public and also allowing the public to make necessary preparations.
Warnings are issued for severe weather which is expected to arrive in the next five days. They are issued in response to eight different weather elements: rain, thunderstorms, lightning, snow, ice, fog, wind and extreme heat, the newest type of warning, which was added in June 2021. [1]
Warnings are given a colour depending on a combination of both the likelihood of the event happening and the impact the conditions may have and could be yellow, amber or red. [2]
Yellow: Be Aware. Severe weather is possible over the next few days and could affect people in the area concerned. Yellow means that people should plan ahead thinking about possible travel delays, or the disruption of your day-to-day activities. The Met Office is monitoring the developing weather situation and Yellow means to keep an eye on the latest forecast and be aware that the weather may change or worsen, leading to disruption of plans within the next few days.
Amber: Be Prepared. There is an increased likelihood of severely or extremely bad weather affecting people in the area concerned, which could potentially disrupt people's plans and possibly cause travel delays, road and rail closures, interruption to power and the potential risk to life and property. Amber means people need to be prepared to change plans and protect themselves, their family and community from the impacts of the severe weather based on the forecast from the Met Office.
Red: Take Action. Extremely bad weather is expected. Red means people in the areas concerned should take action now to keep themselves and others safe from the impact of the weather. Widespread damage, travel and power disruption and risk to life is likely. People must avoid dangerous areas and they should follow the advice of the emergency services and local authorities.
The Met Office uses a wide variety of media in order to inform the public of any warnings that have been issued.
Skywarn is a program of the National Weather Service (NWS). Its mission is to collect reports of localized severe weather in the United States. These reports are used to aid forecasters in issuing and verifying severe weather watches and warnings and to improve the forecasting and warning processes and the tools used to collect meteorological data. Reports are also used by local emergency managers and public safety organizations.
A tornado warning 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. Modern weather surveillance technology such as Doppler weather radar can detect rotation in a thunderstorm, allowing for early warning before a tornado develops. They are also commonly issued based on reported visual sighting of a tornado, funnel cloud, or wall cloud, typically from weather spotters or the public, but also law enforcement or local emergency management. When radar is unavailable or insufficient, such ground truth is crucial. In particular, a tornado can develop in a gap of radar coverage, of which there are several known in the United States.
A tornado watch is a statement issued by weather forecasting agencies to advise the public that atmospheric conditions in a given region may lead to the development of tornadoes within the region over a period of several hours. In addition to the potential for tornado development, thunderstorms that develop within the watch area may contain large hail, straight-line winds, intense rainfall and/or flooding that pose a similar damage risk as the attendant tornado threat.
A severe thunderstorm warning is a type of public warning for severe weather that is issued by weather forecasting agencies worldwide when one or more severe thunderstorms have been detected by Doppler weather radar, observed by weather spotters, or reported by an emergency management agency, law enforcement, or the general public. Unlike a watch, a warning is issued to areas in the direct path of active severe thunderstorms, that are expecting a direct impact typically within an hour. Severe thunderstorms can cause property damage and injury due to large hail, high winds, and flooding due to torrential rainfall. The exact criteria to issue a warning varies from country to country.
The National Weather Service (NWS) is an agency of the 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 Department of Commerce, and is headquartered in Silver Spring, Maryland, within the Washington metropolitan area. The agency was known as the United States Weather Bureau from 1891 until it adopted its current name in 1970.
NOAA Weather Radio (NWR), also known as NOAA Weather Radio All Hazards, is an automated 24-hour network of VHF FM weather radio stations in the United States which broadcast weather information directly from a nearby National Weather Service office. Its routine programming cycle includes local or regional weather forecasts, synopsis, climate summaries or zone/lake/coastal waters forecasts, and can be shortened to specifically include hazardous weather outlooks, short-term forecasts, special weather statements or tropical weather summaries during hazardous weather events. It occasionally broadcasts other non-weather related events such as national security statements, natural disaster information, environmental and public safety statements such as AMBER Alerts, civil emergencies, fires, evacuation orders, and other hazards sourced from the Federal Communications Commission's (FCC) Emergency Alert System. NOAA Weather Radio uses automated broadcast technology that allows for the recycling of segments featured in one broadcast cycle into another and for consistent regular updating of segments to each of the transmitters.
The Storm Prediction Center (SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC).
A winter storm warning is a hazardous weather statement issued by Weather Forecast Offices (WFO) of the National Weather Service (NWS) in the United States to alert the public that a winter storm is occurring or is about to occur in the area, usually within 36 hours of the storm's onset.
This article describes severe weather terminology used by the National Weather Service (NWS) in the United States, a government agency operating within the Department of Commerce as an arm of the National Oceanic and Atmospheric Administration (NOAA).
In weather forecasting in the United States, "particularly dangerous situation" (PDS) is the wording used by the National Weather Service to convey special urgency in watch or warning messages for unusually extreme and life-threatening severe weather. It is used in the format "This is a particularly dangerous situation..." at the discretion of the issuing forecaster. A watch or warning bearing the phrase is referred to as a PDS watch or PDS warning.
A tornado emergency is an enhanced version of a tornado warning, which is used by the National Weather Service (NWS) in the United States during imminent, significant tornado occurrences in highly populated areas. Although it is not a new warning type from the NWS, issued instead within a severe weather statement or in the initial tornado warning, a tornado emergency generally means that significant, widespread damage is expected to occur and a high likelihood of numerous fatalities is expected with a large, strong to violent tornado.
A significant weather advisory was a hazardous weather statement issued by certain Weather Forecast Offices (WFO) of the National Weather Service (NWS) in the United States to alert the public of thunderstorm activity that is below designated severe criteria for and/or is not expected to produce severe weather. The title assigned to the advisory — alternately titled "significant weather alert" or referenced by its originating product, "special weather statement" — varied by the issuing WFO.
A weather warning generally refers to an alert issued by a meteorological agency to warn citizens of approaching dangerous weather. A weather watch, on the other hand, typically refers to an alert issued to indicate that conditions are favorable for the development of dangerous weather patterns, although the dangerous weather conditions themselves are not currently present.
National Weather Service - Norman, Oklahoma is a Weather Forecast Office (WFO) of the National Weather Service based in Norman, Oklahoma, which is responsible for forecasts and the dissemination of weather warnings and advisories for central and most of western Oklahoma, and western portions of north Texas. It is located in the National Weather Center on the University of Oklahoma campus, where it acts as one of the NOAA Weather Partners, a group of close-together weather-related agencies of the National Oceanic and Atmospheric Administration. NWS Norman is currently overseen by Mark Fox, who serves as the Meteorologist In Charge of the office.
The 2015–16 UK and Ireland windstorm season was the first instance of the United Kingdom's Met Office and Ireland's Met Éireann naming extratropical cyclones. The season started on 10 November with the naming of Storm Abigail and ended on 28 March with the dissipation of Storm Katie. With a total of eleven named storms, the 2015–16 season is the most active to date.
Weather system naming in Europe is the responsibility of the national meteorological services belonging to the geographical area in which a weather system originates. These services collaborate to give the system a name, which is then used throughout Europe. This framework was set up beginning in 2013 by EUMETNET, a network of 33 European national meteorological services.
Storm Ciara was a powerful and long-lived extratropical cyclone that was the first of a pair of European windstorms to affect the United Kingdom and Ireland at peak intensity less than a week apart in early February 2020, followed by Storm Dennis a week later. Ciara caused widespread wind and flooding damage across Europe, and at least 13 fatalities.
The 2023–2024 European windstorm season was the ninth season of the European windstorm naming in Europe. It comprised a year, from 1 September 2023 to 31 August 2024. This was the fifth season where the Netherlands participated, alongside the United Kingdom's Met Office and Ireland's Met Éireann in the western group. The Portuguese, Spanish, French and Belgian meteorological agencies collaborated for the seventh time, joined by Luxembourg's agency. This was the third season where Greece, Israel and Cyprus, and Italy, Slovenia, Croatia, Montenegro, North Macedonia and Malta named storms which affected their areas.
The 2024–2025 European windstorm season is the tenth and current season. It comprises a year, from 1 September to 31 August, except shifted a month later in the Eastern Mediterranean Group. The storm names were announced four days before the start of the season on 28 August 2024. This was the sixth season in which the Netherlands participated alongside the United Kingdom's Met Office and Ireland's Met Éireann in the western group. The Portuguese, Spanish, French and Belgian meteorological agencies collaborated for the eighth time, joined by Luxembourg's agency. This is the fourth season of the Eastern Mediterranean and Central Mediterranean groups, in which they comprised respectively: Greece, Israel and Cyprus; and Italy, Slovenia, Croatia, Montenegro, North Macedonia and Malta.
Storm Éowyn is an extremely powerful extratropical cyclone which hit Ireland, the Isle of Man, and the United Kingdom on 24 January 2025. The fifth named storm of the 2024–25 European windstorm season, Éowyn was named by the UK Met Office on 21 January 2025.