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National Weather Service
Report - listing of Operational Products in database, sorted by Newest First.
Product Name Brief Description Operational Date
Graphical Airman 's Meteorological Advisory (G-AIRMET) The graphical Airman’s Meteorological Advisory (G-AIRMET) is a BUFR-formatted time-series depiction of aviation hazards occurring with occasional or greater frequency throughout the conterminous U.S. and adjacent coastal waters (NWS, 2005a). G-AIRMET is available to users via the Internet web site. This product provides a graphical depiction of the standard AIRMET text product from AWC, and covers the CONUS only 2010-03-16 
Multi-Format Marine Forecast Information Web Page for Coastal WFOs Advances in computer capabilities and web services technologies, as well as scientific advances in National Weather Service (NWS) software, have afforded an opportunity for NWS to create customer-based marine products and services. Information dissemination via the World Wide Web (WWW) allows customers to obtain higher resolution marine forecast information in a variety of formats on demand. This version of an interactive marine forecast information web page is being made available to (1) allow users to access marine forecast information that is always current with higher resolution than is possible in traditional text marine forecast products which are averaged over time and space; (2) allow marine customers to view marine forecast information retrieved directly from locally prepared, gridded forecast database in a variety of formats, including icons, text, tabular, and graphic; and (3) receive feedback from users regarding potential refinements to interactive information retrieval and display 2010-03-08 
Modeled Soil Saturation Index In meeting its hydrologic forecast responsibilities, the National Weather Service (NWS) Missouri Basin River Forecast Center (MBRFC) simulates soil moisture across the Missouri River basin in real-time. The Modeled Saturation Index (MSI) quantifies the relative degree of tension water saturation present within the soil column, and is calculated on a sub-basin level. The primary product is a graphical display of the MSI across the Missouri River basin. Soil moisture directly impacts runoff potential, water resource management, debris flow formation, and agricultural productivity. A correlation exists between soil moisture and lower level atmospheric conditions. However, observed real-time soil moisture data is sparse and difficult to spatially interpolate. The production of the MSI graphic will enable the user to visualize the real-time relative degree of tension water saturation present geographically across the Missouri River basin 2010-01-15 
Western Region Graphical Weather Story of the Day The Graphical “Weather Story of the Day” is a graphical representation (product) which depicts the most important weather feature in the forecast area of responsibility of individual NWS Weather Forecast Offices (WFO) in Western Region. The “Weather Story of the Day” is not time dependent. That is, the product depicts the most significant weather feature through the 7-day forecast period. A graphical user interface allows the forecaster to include a brief text, a few sentences in length, describing the “Weather Story of the Day” graphical product. If necessary the product may include a series of images to more clearly communicate complex weather situations. 2010-01-13 
Enhanced Product National Implementation of the use of 1 inch Diameter Hail Criteria The Severe Thunderstorm Warning (SVR) is an alphanumeric product providing short-fused warning in¬formation on hazardous conditions associated with thunderstorms which are expected to pose a threat to life and/or real property. This product is prepared by each National Weather Service (NWS) Weather Forecast Office (WFO) for their County Warning Area (CWA) of responsibility. In the Western Region (WR) and Central Region (CR) a Severe Thunderstorm Warning is currently being issued experimentally based on expectation of winds gusting to 58 mph or greater and/or hail of one (1) inch diameter or greater. Pending successful completion of this experiment, all NWS sites will issue Severe Thunderstorm Warnings based on these criteria. 2010-01-08 
National Digital Forecast Database (NDFD) Day 4 to 8 Convective Outlook Elements The NWS provides access to operational and experimental gridded forecasts of weather elements (e.g., maximum temperature, sky cover) through the National Digital Forecast Database (NDFD). The NDFD contains a seamless mosaic of digital forecasts from NWS field offices and the National Centers for Environmental Prediction (NCEP). NCEP's Storm Prediction Center (SPC) operationally produces detailed outlooks and probability products for severe convective weather for Days 1, 2, and 3, and a more general Day 4 to 8 convective outlook (available as text and graphic products at This element is a forecast for organized severe thunderstorms over the contiguous United States. A severe weather area depicted in the day 4 to 8 period indicates a 30% or higher probability for severe thunderstorms within 25 miles of any point 2009-12-01 
D Region Absorption Prediction, Release 2 The D-Region Absorption Prediction, Release 2 (D-RAP2) product provides a suite of graphic and text information about the global High Frequency (HF) radio propagation conditions related to the state of the ionosphere’s D-region. D-RAP2 will be web based ( and is an enhancement of the current D Region Absorption Prediction product ( D-RAP2 fills a void that exists in the current product by providing absorption information due to energetic proton precipitation at high latitudes. The web site provides: o A main page containing a global map of the highest HF frequencies affected by a 1dB attenuation, estimated recovery times, and links to subordinate pages. o Subordinate pages containing: north and south polar maps of the highest frequencies affected by a 10dB attenuation, and ASCII tabular values of total absorption at 10 MHz. o DRAP2 is updated every minute SWPC data and products are designed to provide accurate and real-time space weather information for the safety and benefit of our customers 2009-11-20 
Western Region Standardized Fire Weather Web Pages The need for improved fire weather information via the internet by land management and fire suppression agencies in Western Region (WR) is continually increasing. Multiple fire weather user agencies have requested a consistent WFO fire weather web page layout and more interactive graphical web pages to provide critical fire weather information. To account for these requests, WR tested consistent, interactive, fire weather web pages at every WR WFO from August 1, 2008 to June 1, 2009. Customer comment via a standard web survey,e-mail and face-to-face fire weather meetings was overwhelmingly positive. The pages became operational on November 2, 2009. 2009-11-02 
Central Region Multimedia Weather Briefing The Multimedia Weather Briefing (MWB) is an Internet-accessible multimedia file that provides information concerning hazardous weather events within the service area of a Central Region office. The MWB offers a combined visual/auditory platform for supporting the planning activities of emergency response partners and other key customers, as well as the general public by conveying forecaster reasoning and confidence concerning impending hazardous weather events, upcoming or current drought conditions, climate and hydrologic outlooks, etc. These briefings also serve as a means of communicating probabilities and other uncertainty information which can be used in risk reduction assessments which may impact preparations or actions made by our partners and customers 2009-10-01 
GovDelivery Southeast River Forecast Center (SERFC) Subscription Service GovDelivery is a subscription service that serves as an efficient means of notifying partners of the issuance of critical SERFC products. GovDelivery specializes in the unique distribution of government information, and currently has contracts in place with many other state and federal agencies, including FEMA. 2009-09-17 
Hazard Grids in the National Digital Forecast Database The NWS provides access to operational and experimental gridded forecasts of weather elements (e.g., maximum temperature, sky cover)through the NDFD. The NDFD contains a seamless mosaic of digital forecasts from NWS field offices working in collaboration with the National Centers for Environmental Prediction (NCEP). The hazard grids are prepared by all Weather Forecast Offices (WFO) and are available via the NDFD. Hazard grids are valid for more than two hours. The hazard grids depict all active long duration watch, warning and advisory hazards issued by NWS WFOs . The hazard grids include long duration coastal, marine, nonprecipitation, tropical and winter weather hazards. It also includes convective and some hydrological watches. It does not include the following short duration warnings: Tornado Warning, Severe Thunderstorm Warning, Extreme Wind Warning, Flash Flood Warning, and Special Marine Warning. It does not include the following Long Duration Watches and Warnings issued in RiverPro and WarnGen:Flood Watch for forecast points, Areal Flood Warnings and Flood Warnings for forecast points. In addition, it initially will not include Gale Warnings, Storm Warnings and Hurricane Force Wind Warnings issued in the Offshore and High Seas forecast by OPC and TAFB. The NDFD Hazard grid definition is defined as,a weather or hydrologic hazardous event issued for the protection of life and property and the enhancement of the national economy. The Hazards grid will be in experimental status in the NWS Alaska Region until further notice. 2009-09-15 
National Digital Forecast Database User Defined GRIB2 files Gridded forecasts requested by a user from the National Digital Forecast Database (NDFD) are encoded into GRIB2 and transmitted to that user via the World Wide Web (WWW). A user can be any member of the public, a government agency, or a commercial enterprise. The user chooses one of the weather elements that is available in the NDFD and specifies the bounding latitudes and longitudes of the grid that will be transmitted via a Web CGI interface. GRIB2 is data encoding standard described by the World Meteorological Organization in its document FM92 GRIB, Edition 2, Code Form and Tables.... 2009-07-01 

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