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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.
IFPS Digital Forecast PageThe IFPS Digital Forecast Page provides an interface for the public to access weather information from the NWS gridded forecast (IFPS) database. The gridded forecast is maintained 24/7 by all 24 Western Region Forecast Offices as part of the national NWS IFPS program.
Instant Messaging for NWS and Partners :NWSChatInstant Messaging (IM) is a real-time, Internet-based method of electronic communication between two or more parties. IM may also be referred to as "chat". Utilizing a software application known as a "chat client", multiple users can compose and send messages to each other in forums known as "chat rooms." In addition to manually composed mesages, chat sessions may contain various automated software-generated messages that convey information about disseminated National Weather Service (NWS) products. NWSChat is the name for the system providing IM capability to the NWS. NWSChat consists of hardware and software maintained by NWS and client software that can be accessed via a web browser or downloaded on the users computer.
International Tsunami Products for the Pacific BasinThe International graphical and statistical tsunami threat information product will be disseminated by the PTWC via email to a country’s designated Tsunami Warning Focal Point (TWFP) to support decision-making by that country’s tsunami warning organization. The email will also contain the accompanying international Tsunami Threat text messages (WEPA40). The tsunami warning organization may use the PTWC information as primary or supplemental guidance for determining their level of alert, and is responsible for issuing applicable alert levels such as warnings and watches to its own emergency management and stakeholder agencies, and/or the public.
Lightning Potential IndexThe Lightning Potential Index (LPI) is a web graphic that displays an index of lightning potential for various parts of the day, with a second day for planning purposes. This product will be issued routinely in the morning and updated as necessary.
Lightning Strike Density ProductThe Lightning Strike Density product is a gridded and graphical depiction of the density of lightning strikes. Units for the gridded product (GRIB2) as per WMO requirement are in SI units and are (number of strikes) m-2 sec-1 . These units require a scaling factor of 10 11 (11 is an exponent) to convert to km-2 min-1. The gridded forms are written to 8 km x8 km resolution and are generated in 15 and 30 min collectives. The lightning strike density product is based on the ground based Vaisala GLD360 global lightning network and is capable of detecting cloud-to-ground strokes, cloud-to-ground flash information and survey level cloud lightning information. Lightning Strike Density, as opposed to display of individual strikes, highlights the location of lightning cores and trends of increasing and decreasing activity. It is also a parameter that is useful to compare cloud to ground capabilities from different sources of lightning data.
Local NWS Facebook Pages Facebook, the largest of the social media sites, is a social networking web site where users can connect and interact with other people, organizations, and businesses. NWS will be using local and national facebook pages as a supplemental channel to experimentally disseminate environmental information and promote weather awareness activities including outreach and educational efforts
Low Flow Probabilistic forecastCurrently the National Weather Service (NWS) River Forecast Centers (RFCs) and Weather Field Offices (WFOs) produce a wide variety of river forecasts, which indicate current and future river conditions. The Low Flow Probabilistic Forecasts prepared by the North Central River Forecast Center (NCRFC) will be issued as Web page graphics. The graphics will be for the NCRFCs area of responsibility. They will be issued once a month (after the Climate Prediction Center (CPC) outlooks are released at mid-month). They will cover the three month period after the issuance (for example, graphics released around May 26 will cover June-August period).
Marine Forecast MatrixThe National Weather Service (NWS) Marine Forecast Matrix (MFM) provides a tabular forecast of wind direction and speed, swell direction and height, wind wave height, significant wave height, cloud cover, probability of precipitation, and areal precipitation coverage.
Marine Weather Discussion (MWD)Plain language free text discussion of computer model trends which focuses on expected wind and sea conditions. The MWD is used as a coordination vehicle among the national centers and coastal Weather Forecast Offices.
Marine Weather MessageThe Marine Weather Warning (MWW) product is a text bulletin intended to better inform mariners of adverse nonprecipitation conditions. It will also provide consistency of the National Weather Service (NWS) Coastal Weather Forecasts (CWFs), Great Lakes Open Lakes Forecasts (GLFs) and Great Lakes near shore forecasts (NSHs) with other NWS programs (winter weather, hydrologic, nonprecipitation and coastal hazards).
Marine Weather Statement (MWS)Plain language free text discussion of potentially hazardous warning conditions associated with non-severe thunderstorms and/or waterspouts issued on an event driven basis from WFOs. The product is also issued to advise of potential hazardous conditions with wind, waves, visibility, low water levels, hazardous materials spills, volcanic ash, and ice.
Maximum Tropical Cyclone Wind Speed Probability TableThe WSP shows the probability that maximum 1-minute wind speed forecast for the tropical cyclone will be within one of seven intensity ranges/storm classifications through 72 hours. The maximum 1-minute wind speed forecasts correspond to the wind speed forecasts in the Tropical Cyclone Forecast/Advisories (TCM) product. The probabilities are based on National Hurricane Center (NHC) forecasts from 1988-1997. NHC issues this experimental product for tropical cyclones in the Atlantic and Eastern Pacific basins. This experimental product is also issued for subtropical storms.
Maximum/Minimum Relative Humidity NDFD Grid Daily Maximum Relative Humidity and Minimum Relative Humidity grids are available in the NDFD on an operational basis. These elements are available for the entire U.S. including Alaska and Hawaii. The elements are automatically derived from existing Weather Forecast Office (WFO) hourly temperature and hourly dew point grids. Maximum Relative Humidity is calculated from 06Z to 18Z, and Minimum Relative Humidity is calculated from 18Z to 06Z.
Meteorological Impact Statement (MIS)The National Weather Service's (NWS) Meteorological Impact Statement (MIS) is a unscheduled flow control and flight operations planning forecast.  The MIS is valid 2-12 hours after issuance time and details weather conditions expected to adversely impact
Minneapolis TRACON Collaborative Convective Forecast ProductThe Minneapolis TRACON forecast product/service will be a collaborative effort by personnel of WFO Minneapolis, CWSU Minneapolis and initially, Northwest Airlines to produce a forecast of thunderstorm and/or lightning activity within a radius of 100 nautical miles of the center of the Minneapolis airport.
Mixed Case Letters in WFO Text Products Many NWS partners and users have identified the need for NWS text products to be provided in mixed case letters and to include an expanded punctuation and character set. Previously, national Public Information Statements (PNSs), including national Service Change Notices (SCNs) and national Technical Implementation Notices (TINs), were provided in mixed case letters with an expanded punctuation/character set for a risk reduction effort using non-operational products: (
Modeled Soil Saturation IndexIn 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
Mountain Pass ForecastThe Mountain Pass Forecast allows customers to check the forecast for significant highway passes for the next three days. Passes were chosen for this product based upon the frequency of calls to the WFO concerning weather at the pass and potential for impacts to travelers and commerce.The forecast consists of a text product that can be accessed via a web page
Mountain Recreational Point ForecastsThe Mountain Recreational Point Forecasts complements the official narrative text recreational forecasts that have long been issued by WFO Burlington, and in similar forms by other WFOs across the country. The web based display leverages the Google Maps interface to allow the user to readily access the specific mountain peak forecasts available. The WFO Burlington Mountain Recreational Forecast program serve a public safety purpose by providing weather forecasts for the highest elevations across the region, which are frequently impacted by severe and life-threatening weather that is not experienced at the lower elevations
MULTI-FORMAT FORECAST INFORMATION WEB PAGEAdvances 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 products and services.
MULTI-FORMAT MARINE FORECAST INFORMATION WEB PAGEAdvances 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.
Multi-Format Marine Forecast Information Web Page for Coastal WFOsAdvances 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
Multimedia Weather BriefingThe Multimedia Weather Briefing is an Internet-accessible multimedia file that provides information concerning hazardous weather events within the service area of a Southern Region office. The briefing provides a medium for supporting the planning activities of emergency response partners and customers by conveying (both aurally and visually, in non-technical terms) the forecaster's reasoning and confidence concerning upcoming hazardous weather events.
National Spot Forecast Webpage NWS Spot is a website where NWS customers can request a spot forecast. The customer answers form questions on the website and then the website will compose an STQ text product that is sent to the AWIPS of the Forecast Office that is required to write the forecast. The forecast is generally composed on AWIPS as an FWS text product and transmitted like any other text product that is issued by the forecast office. The NWS Spot website databases these FWS products. Each FWS product includes a “.TAG” line, which helps the NWS Spot website associate each forecast request with a completed forecast. Spot forecasts are a critical mission of the National Weather Service. These forecasts are needed (for example) for those fighting wildfires, conducting prescribed burns, cleaning up HAZMAT incidents (like deepwater horizon), for search and rescue operations, and other critical operations, as needed.
National Air Quality forecast System (AQFS) Ozone (03) forecastA web-based presentation of gridded forecast O3 guidance originating from the Environmental Modeling Center (EMC) of the National Environmental Prediction (NCEP). The ozone data is displayed for a domain covering the northeast US for 1-hour and 8-hour averages.

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