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National Weather Service
Report - listing of Operational Products in database, sorted by product name.
Product Name Brief Description     Click Here for "Printable" version of this list.
Non Technical Format of the Winter Low Tracks GraphicThe National Weather Service (NWS) National Centers for Environmental Prediction (NCEP) Hydrometeorological Prediction Center (HPC) Winter Weather Desk (WWD) issues a forecast of significant surface low positions twice daily. This graphic is known as the Winter Low Tracks Graphic. The Winter Low Tracks Graphic depicts over the contiguous U.S. (CONUS) the HPC forecast position of significant surface lows in 12 hour increments out to 72 hours. Uncertainty in the HPC forecast low position is depicted by including the forecast low position from model guidance available to the HPC forecaster
NWS Current Observations Using RSS and XML Based FormatsProvide current observations in two Internet based formats. Each format provides a channel for users to quickly access specific products. Products are organized by ASOS station ID. Two data exchange formats using Extensible Markup Language (XML) are provided for customers and partners who wish either display selected parts of the products or provide a display of the products to other customers. The product homepage can be accessed at:
NWS Pendleton Decision Support Web PageThe Decision Support Web Page provides the following information to Internet users: 1) Graphical weather hazards for the next seven days using a Google Map interface; 2) Graphical ventilation forecast for the next 3 days; 3) Daily dispersion outlook text forecast; 4) Links to the SPC Fire Weather Forecast; 5) Links to aviation tactical decision aids; 6) Links to the SPC Day1 and Day2 Convective Outlooks; 7) Uncertainty forecasts for temperature using plume diagrams for 12 MOS points in the Pendleton County Warning Area; 8) Links to GOES satellite and NEXRAD radar data; 9) Current observations displayed using Google Maps; 10) Text Hazardous Weather Outlook, Area Forecast Discussion, Local Storm Report, and Short Term Forecast products;
NWS Use of Twitter as an Environmental Information ServiceNWS will be using Twitter as a supplemental channel to experimentally disseminate environmental information and promote weather awareness activities including outreach and educational efforts.
NWS Warnings Using Geographic Information SystemsNWS-issued short-fused warnings are added to a real-time database and Geographic Information System (GIS) shapefiles are generated from this database. In addition, an updated graphic is displayed that displays the current status of warnings.
NWS Watches, Warnings, and Advisories using ATOM and CAP XML based FormatsInternet based feeds of NWS watch/warning/advisory products using the SML-based Common Alerting Protocol (CAP) v1.1 and ATOM message formats. CAP is an information standard used to facilitate emergency information sharing and data exchange across local, state, tribal, national and non-governmental organizations of different professions that provide emergency response and management services. The ATOM feed provides an index of active NWS CAP messages in a geographic area. The CAP and ATOM feeds allow NWS Partners, emergency managers and others to access, re-use and re-distribute this mission critical information to a greater extent than ever before possible. For example, CAP messages may be readily integrated with consumer electronics decision support systems and mobile alerts.
NWS web services via wireless technologiesNWS is responsible to make its weather, water and climate information widely available to taxpayers using commonly accepted standards and technologies.One of the most widely accepted, available and cost effective means of accomplishing this objective is the use of web services via the internet, and NWS has implemented a corporate-wide HTTP-based web service. This service has allowed users instant access to current NWS information via industry standard web browsers and internet connections. A rapidly evolving technology in the United States today is the ability to access internet content via wireless devices such as Personal Digital Assistants (PDA) and cell phones.
Observed Precipitation MapThe National Weather Service (NWS) collects rainfall data to support its forecast and warning operations. Individual River Forecast Centers (RFCs)and Weather Forecast Offices typically provide rainfall collectives in text format and graphical format for their areas of responsibility. The National Centers for Environmental Prediction (NCEP) Climate Prediction Center (CPC), collects additional data from cooperative observers. This rainfall data is made available to HPC and is used extensively for verification purposes.This rainfall data is plotted on a map of the CONUS and made available to forecasters. The data is used for feedback on forecast accuracy and can be used in case studies and other scientific endeavors.
Offshore Waters ForecastAn alphanumeric product routinely prepared for the Offshore Marine Zones in the Atlantic and Pacific Ocean Basins that provides forecasts of wind, waves, visibility, icing, and significant weather out to the five day forecast period.
One-Month Climate Outlook (Contiguous U.S. and Alaska).The Climate Prediction Center (CPC) issues a probabilistic one-month temperature and precipitation outlook. (Revised - Version 3)
One-Month Outlook Discussion (Contiguous U.S. and Alaska).A technical discussion of the meteorological and climatological basis for the one-month outlooks. (Revised - Version 3)
Open Lakes ForecastAn alphanumeric product prepared by NWS Offices with Marine responsibility over the Great Lakes. This is a routinely issued product that describes forecast conditions and event-driven marine hazards expected over the five day forecast period. A coded fo
Operational Day 5 Tropical Cyclone ForecastThe approval of this PDD authorizes the public dissemination of an operational Day 5 tropical cyclone forecast. Two products will require modification if Day 5 forecasts are approved:
Palmer Drought Severity Index.The Climate Prediction Center?s (CPC) and U.S. Department of Agriculture?s Joint Agricultural Weather Facility (JAWF) produces the Palmer Drought Severity Index chart. The index indicates long term conditions.
PHX Drought Data PageThe PHX Drought Data Page was developed in response to a request from the Arizona Governors Drought Task Force. The product provides a single web based interface for users to more easily access precipitation data from the state for purposes of "decision making" as related to the ongoing drought in Arizona.
Post Tropical Cyclone Report (PSH)The PSH is an alphanumeric product summarizing the meteorological parameters observed within a Weather Forecast Offices County Warning Area after a tropical cyclone event.
Potential Storm Surge Flooding MapThe Potential Storm Surge Flooding Map is a product that provides valuable information on potential storm surge flooding for areas along the U.S. Gulf and East Coast at risk from storm surge during a tropical cyclone event
Precipitation Frequency Data ServerNWS precipitation frequency estimates have traditionally been delivered in the form of Weather Bureau Technical Papers and Memoranda as well as NOAA Atlases, all hard copy documents. With the advent of the World Wide Web, these documents have been scanned and made available via web pages. The National Weather Service specifically developed the Precipitation Frequency Data Server as the primary web portal to precipitation frequency estimates and associated information (Parzybok and Yekta, 2003). Recent updates to NWS precipitation frequency are being delivered entirely in digital rather than hard copy form in order to make the estimates more widely available to the public and to provide the data in a broader and more accessible range of formats.
Precipitation Potential IndexThe Precipitation Potential Index will display graphically on the internet. The graphic is a means to show forecaster confidence as to the location of precipitation at each hour across the CWA. It is intended to supplement the 12 hour POP and weather grids.
Probabilistic Hurricane Inundation Surge HeightThe Probabilistic Tropical Cyclone Inundation Guidance products has been renamed the Probabilistic Hurricane Inundation Surge Height product. a.The Probabilistic Hurricane Inundation Surge Height (PHISH)guidance products consist of two suites of probabilities for the Gulf of Mexico and Atlantic coastal areas: 1) Probabilities, in percent, of inundation exceeding 0 through 20 feet above ground level, at 1 foot intervals (e.g., the probabilities in percent, of inundation exceeding 0 feet, 1 foot, 2 feet, .. 20 feet). 2) Probabilities of inundation heights (above ground level) being exceeded. The suite of products range from 10 to 50 percent, at 10 percent intervals. Each of the probabilities mentioned above will be provided out to 78 hours as a cumulative probability, defined as the overall probability the event will occur at each grid cell from the start of the run until some specified time (e.g. 0-6 hours, 0-12, 0-18, etc.)and as an incremental probability, defined as the probability the event will occur sometime during the specified forecast period (e.g. 0 - 6 hours, 6-12, 12-18, etc.) at each grid cell. The products are based upon an ensemble of Sea, Lake, and Overland Surge from Hurricanes (SLOSH) model runs using the National Hurricane Center (NHC) official advisory and accounts for track, size, and intensity errors based on historical errors. Plans are underway for tide to be incorporated into the suite of products during the 2013 hurricane season. Long term plans are to incorporate waves and freshwater (i.e. precipitation runoff and river inflow).
Probabilistic Quantitative Precipitation ForecastsNOAA's Strategic Plan states that we are to "Improve the reliability, lead-time, and effectiveness of weather and water information and services that predict changes in environmental conditions." To support that effort, The National Weather Service Strategic Plan for 2005 to 2010: Working Together to Save Lives, establishes a mission goal to develop new capabilities and move into a new direction of forecasts... and expand beyond traditional weather and water products. In response to the NOAA and NWS goals, the Weather Forecast Office in Tulsa, Oklahoma (TSA) has developed a method to provide probabilistic quantitative precipitation forecasts on a routine basis, in the form of probability of exceedance (POE) forecasts. This method will be used at several Weather Service Forecast Offices (WFOs) in the Southern Region. These POEs will provide our clients and customers with more detailed precipitation forecasts that they can use in their decision-making processes.
Probabilistic Tropical Cyclone Storm Surge and Tide Above DatumThe Probabilistic Tropical Cyclone Storm Surge and Tide Above Datum consists of two suites of graphics. Probability of storm surge and tide above datum - series of graphics which show probabilities, in percent, of storm surge with tide exceeding 2 through 25 feet above North American Vertical Datum of 1988(NAVD88), at 1 foot intervals. Exceedance height of storm surge and tide above datum- series of graphics which show heights of storm surge with tide, in feet above NAVD88, which will be exceeded by a given percentage of storms. The suite of graphics range from 10 to 50 percent, at 10 percent intervals.
Probabilistic Tropical Cyclone Storm Surge Exceedance productsThe Tropical Cyclone Storm Surge Exceedance products provide storm susrge heights (in feet above normal tide level) and the probabilities from 10 to 90% increments, of storm surge exceeding the displayed height. The products are produced when a hurricane watch and/or warning is in effect for any portion of the Gulf or Atlantic coasts of the continental US. The products are available in graphic form, GRIB2 and ESRI Shape files.
Probabilistic Winter Precipitation Forecasts (PWPF) Percentiles of Snow and Ice AccumulationsThe Probabilistic Winter Precipitation Forecasts (PWPF) are based on the deterministic Weather Prediction Center (WPC) Winter Weather Desk (WWD) accumulation forecasts, but are generated automatically using an ensemble of model forecasts along with the WWD forecasts. The automatic nature of this product generation allows a much more extensive set of displays of probabilities for snowfall and freezing rain accumulation exceeding several thresholds (probability of exceedance) as well as displays for several percentile levels. These probabilistic winter precipitation forecasts are provided as guidance forecasts for use by the RFCs and WFOs. They are also available to the emergency management community, media, and general public.The target audience includes NWS forecasters, the academic community, the emergency management community, and anyone interested in winter weather forecasts.
Probability of Exceedence Outlook for Center Probability Distribution (50 percent)The Climate Prediction Center (CPC) issues a series of thirteen three-month graphical outlooks for the 50 percent probability of exceedence (or center probability distribution) for temperature and precipitation across the contiguous U.S.

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