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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.
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.
Probability of Freezing TemperaturesThe Probability of Freezing Temperatures product will be a graphical display on the internet of the probability (in percent) that overnight low temperatures will fall to freezing or below across the (PDT) County Warning Area (CWA) for the ?tonight? and ?tomorrow night? time periods. It will be updated as necessary, but at a minimum with each major Zone Forecast issuance at 3 pm and 4 am local Pacific time. The product will be issued seasonally in the fall from September 15th until November 30th and in the Spring from March 15th until May 31st.
Probability of Meeting or Exceeding Specific Temperature ThresholdsThe Probability of Meeting or Exceeding Specific Temperature Thresholds (e.g. Freezing or 100 degrees) is a graphical display on the Internet of the probability (in percent) that temperatures will either rise above or fall below the desired threshold in a given county Warning Area (CWA) for the Day 1 and Day 2 forecast time periods. It will be updated as necessary, but will be issued at a minimum with each major Zone Forecast package at 3 pm and 4 am local Pacific time.
Real Time US Total Electron Content Vertical and SlantThe US Total Electron Content (US-TEC) product is designed to specify TEC over the Continental US (CONUS) in near real time. The product uses a Kalman Filter data assimilation technique driven by data from ground-based Global Positioning System (GPS) dual frequency receivers. The primary data stream comes from the Maritime and Nationwide Differential GPS (M/NDGPS) real time network of stations operated by the US Coast Guard (USCG). As of Oct 2004 there were about 60 M/NDGPS stations ingested into the model. This number has been gradually increasing and will be augmented by Federal Aviation Administration/Wide Area Augmentation System (FAA/WAAS) data, and stations operated by the Forecast System Laboratory (FSL). This product has evolved from collaboration among Space Environment Center (SEC), National Geodetic Survey (NGS), National Geophysical Data Center (NGDC), and FSL.
Real-Time Mesoscale Analysis (RTMA)The National Weather Service (NWS) weather forecast offices (WFOs) produce and send digital forecasts to various users. These forecasts of hydrometeorological variables, such as temperature and precipitation, contribute to the generation of the NWS National Digital Forecast Database (NDFD). The Real-Time Mesoscale Analysis (RTMA) is a gridded analysis of the hydrometeorological variables that matches the NDFD spatial resolution. Products from this analysis are generated hourly, disseminated to NWS field offices and National Centers, and available for external users. The RTMA is the first component of the NWS Analysis of Record (AOR) project. RTMA product generation for the CONUS region includes the following products: surface temperature, surface dew point, wind speed and direction, and cloud and precipitation amount products, and u and v wind components. The product set generated for RTMA Alaska, Hawaii, Guam and Puerto Rico contain the same parameters as CONUS regions except for the cloud amount and precipitation products. Analyses for the Guam domain are available at three hour intervals. An analysis uncertainty product is generated for all RTMA products except the cloud and precipitation products, and u and v wind components.
Red Flag Potential IndexThe Red Flag Potential Index (RFPI) is a graphical product produced by forecasters at WFO Las Vegas (VEF) using GFE/IFPS. Ratings of Red Flag potential (numbers 1 through 4) for the next three days (today, tomorrow and the next day) are calculated using forecasts of relative humidity and prevailing 20-ft, 10-minute average surface wind, along with forecaster knowledge of other factors such as critical fire conditions and the existence of active wildfires. The RFPI is intended to be used as general guidance, primarily for planning purposes. Since the southern half of our forecast area operates an aggressive, proactive prescribed burn program, this product will be issued year-round.
Redesign NWS Web Services Via Wireless TechnologiesThis product is a redesign of its existing mobile web page, The goal of the redesign is to update the look, feel, and functionality of NWS mobile web presence in order to better take advantage of the capabilities.
Regional Flash Flood Guidance GraphicsFlash Flood Guidance (FFG) is the amount of rainfall in a given time period that will produce flooding on small streams. FFG is distributed via AWIPS in text products and lists FFG values for 1-, 3-, 6-, 12-, and 24-hour time periods for each county. The experimental Regional FFG Graphics are Internet web pages that show these FFG values in both graphical and tabular form. These graphic products are for the entire Southern Region (SR) area, the area of responsibility of each SR River Forecast Center (RFC), and each state in SR. In addition to having a state graphic for Texas, graphics of FFG for north, south, and west Texas are available.
Regional/Local Seasonal ForecastRegional/Local Seasonal Forecasts may be textual or graphical. They typically consist of short-term climate variability forecasts and monitoring data, and meteorological/hydrological interpretation and assessment of societal impact on a web page. These web pages will normally provide educational material to help users understand the forecast methodology and reliability to better aid preparedness and mitigation efforts. The web page will typically assimilate a wide variety of information on short-term climate variability for the forecast area such as links to official NOAA/NWS forecasts and experimental, locally/regionally produced graphical/textual monitoring products. The area covered by the forecast may be a commonly accepted political or geographical location such as a state, county or region, or it may be a uniquely defined in which case the area will be made explicitly clear on a map on the web page. An example of such a seasonal forecast product suite is the "Florida EL Nino - Southern Oscillation (ENSO) Home Page Featuring: 2002-2003 Experimental Dry Season Forecast for Florida (Valid for period November 1st 2002 through April 30th 2003)" produced by WFO Melbourne, Florida and available on the Internet at:
RIDGE Radar Integrated Display with Geospatial Elements (National)NWS is responsible to make its weather, water and climate information widely available to taxpayers using commonly accepted standards and technologies. Currently, the NWS provides weather radar information for all Weather Service Doppler Radars (WSR 88-D) in the United States on the NWS Internet page. The National Weather Service Southern Region, working in cooperation with North Central Texas Council of Governments, has developed a method to display radar images more efficiently than the previous method. These radar images, call RIDGE (Radar Integrated Display with Geospatial Elements), allows the radar image to be combined with geospatial elements such as topography maps, highways, and county boundaries. This not only produces a better image, but provides additional reference information for users to understand where they are located. RIDGE also adds the ability to overlay polygon warnings issued by the National Weather Service Forecast Offices.
Rip Current Probability GraphicalThe National Weather Services (NWS) Rip Current Probability Graphical product provides a graphical representation of the probabilities of rip currents along area beaches from Pender County, NC south to Georgetown County, SC. This product is issued twice a day.
Route ForecastThe Route Forecast (ROFOR) is an alphanumeric product providing a coded route forecast for regularly scheduled flights or upon request for flights that either begin or end in or that have most of the flight path within the National Weather Service's Pac
Sacramento WRF NMM Model OutputThe Sacramento WRF_NMM is run locally at the WFO Sacramento and gives hourly output out to 48 hours. The high resolution model is used for operational forecasting and research in Northern California. Model Output graphics, generated by GEMPAK software, are posted for 3 hourly forecast time steps to the WFO Sacramento web page. The fields include geopotential heights, vorticity, temperatures, dew point, relative humidity, wind, vertical velocity, freezing level, precipitation amount and type, sea level pressure, thickness, clouds, precipitable water, convective available potential energy (CAPE), and convective inhibition (CIN). The model would replace existing Workstation Eta output on the website.
Satellite Interpretation MessageSIM is an alphanumeric product providing an interpretation of synoptic weather features, significant weather areas, and various cloud and weather phenomena based upon satellite imagery (visual, infrared, water vapor, etc.). National Weather Service's Pacific Region's Weather Forecast Office (WFO) Honolulu prepares the SIM for a portion of their area of responsibility (AOR). The AORs for WFOs Honolulu vary and depend upon the program (tropical cyclone, aviation, marine, public, and satellite).
Sea Ice AdvisoryProvides analysis, forecast, and climatological information pertaining to sea ice in the waters surrounding Alaska.
Sea Ice AnalysisSea ice conditions for the waters surrounding Alaska
Sea State AnalysisA graphical product depicting sea state conditions over the North Atlantic and Pacific Ocean Basins. Features such as the location of the ice edge and the isopleths for wave heights and arrows for swell direction are depicted.
Sierra Backcountry ForecastThe Sierra Backcountry Forecast is a web based text product produced by forecasters in support of the Sierra Avalanche Center and the Central Sierra Avalanche Center. The product provides forecasted parameters critical to accurately forecasting avalanche conditions by the Sierra Avalanche Centers. The elements forecasted include temperatures, winds, and sky/weather, all of which affect the stability of the snowpack, changes in the snowpack structure, and ultimately avalanche potential.
Significant Meteorological Information (SIGMET)SIGMETs are concise, brief descriptions of the development and occurrence or expected occurrence in time and space of specified en-route weather phenomena which may affect the safety of all aircraft operations.
Southern Region TRACON APPROACH and DEPARTURE GATE FORECAST PRODUCTThe Southern Region Tracon Approach and Departure Gate Forecast will complement the Collaborative Convection Forecast Product (CCFP) by providing greater detail of convective occurrence and coverage of significant reflectivities and echo tops as determined collaboratively between the CWSU MIC, the Air Route Traffic Control Center’s (ARTCC) Traffic Management Unit (TMU) and the impacted Terminal Radar Approach Control (TRACON). Variations in the presentation and depiction are authorized based on the needs and requirements of the specific ARTCC TMU and TRACON
Space Weather for Aviation Service ProvidersThe Space Environment Center (SEC) Space Weather for Aviation Service Providers web page combines graph and text presentations of near real-time solar and geophysical parameters of interest to the aviation industry. This page incorporates products and models which are driven by data and imagery from ground-based and space-based observations. The Space Weather for Aviation Service Providers web page displays retrieved and reformatted existing SEC products.
Space Weather Forecast DiscussionPlain language Space Weather Forecast Discussion bulletin detailing recently observed space weather data, model guidance, and plain text forecaster rationale to compliment to the new 3-Day Space Weather Forecast product, tailored to sophisticated users and scientific perspectives
Space Weather Prediction WebsiteThis completely redesigned site leverages the latest web technologies to reach the broadest possible audience.
Spanish Tsunami MesssagesThe NWS/AR West Coast and Alaska Tsunami Warning Center (WCATWC) provides tsunami warning, advisory, watch, and information messages to its AOR which consists of Canada, Puerto Rico, Virgin Islands, and the ocean coasts of all states except Hawaii. Presently, the products are all issued in English. Three new products that mimic WCATWC tsunami products for the Atlantic (Puerto Rico, USVI, east coast, and Gulf of Mexico coast) that are composed in Spanish. The TSUATE product is the bulleted tsunami warning, advisory, and watch product. TIBATE is the bulleted tsunami information statement for earthquakes over magnitude 6. EQIAT1 is the bulleted tsunami information statement for earthquakes below magnitude 6.

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