| Product Name |
Brief Description |
View PDD |
| [New] or [Modification] (Click link to see details) |
|
(Shift-Click to get file) |
| [New] Experimental 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
| MBRFC_MI_PDD.pdf |
| [New] Experimental Mountain Recreational Point Forecasts | The Experimental 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 | BTV_MtnPoint.pdf |
| [New] Experimental 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 | MarinePtClick.pdf |
| [New] Experimental National Digital Forecast Database (NDFD) Day 4 to 8 Convective Outlook Elements | Since September 30, 2008, the convective outlooks for days 4 to 8 produced by NCEP's Storm Prediction Center are available within the NDFD as an experimental element. A severe weather area depicted in the day 4 to 8 period indicates a 30% or higher probability for severe thunderstorms (e.g. a 30% chance a severe thunderstorm will occur within 25 miles of any point). | day4-8_severe_outlook_PDD.pdf |
| [New] Experimental National Fire Weather Web Page | Multiple federal fire weather user agencies have expressed a need for an improved national fire weather web page that includes more interactive graphics. In addition, the old national fire weather web page is out of date and not compliant with the corporate layout of NWS pages. OS/22 will test a new fire weather web page from October 2 2009 to March 1, 2010.
| NationalFireWxWebPagePDD.pdf |
| [New] Experimental National Water Resources Web Page | The Experimental Water Resources Web Page provides a single web page for displaying water resources information from all River Forecast Centers (RFC). Water resources information includes expected streamflow conditions for next 30, 60, and 90 days. A range of flows are provided for each time period. Forecasts of the most likely value are color coded according to percentage of normal streamflow. More specific information for individual forecast points are available by drilling down to points. Gridded information, such as soil moisture and snow water equivalent may also be provided.
| ExpNationalWaterResourcesWebpage.pdf |
| [New] Experimental NHC Audio Briefings (Podcasts) | NHC will be producing experimental audio briefings (also called podcasts) when the media pool is activated. The audio feeds will be created in mp3 format, and to increase their accessibility, links to the mp3 files will be made available through XML/RSS technology. Anyone with an mp3 player and podcasting software can receive the audio file from the National Hurricane Center. The .mp3 audio format is an industry standard which allows audio products to be dissemeniated via the Internet. | NHCPDDPodcast.pdf |
| [New] Experimental NHC Media Briefings : Videocasts | For the 2009 hurricane season, NHC has entered into an agreement with America's Emergency Network (AEN) to provide IP-based audio and video streaming of it's hourly hurricane briefings. The URL to the briefings will be posted on the NHC Web site when the media pool is activated. Anyone with access to the Internet and a web browser that supports audio and video can view the briefings broadcast from the National Hurricane Center.The Internet browser streaming video format is an industry standard which allows video products to be dissemeniated via the Internet. | NHCPDDVideocast.pdf |
| [New] Experimental NWR on the Web WFO Mt.Holly | The purpose for providing NWR broadcast text in the mp3 format for web users is that it can be especially useful for locations where normal NWR broadcasts can not be received due to distance from the transmitter or, terrain effects that would either block or decrease the quality of the reception. Also allowing users to choose to listen to a broadcast via a menu allows them to get their information more quicly than having to listen through a typical broadcast cycle that may last tens of minutes especially during sever weather mode. The current version (Phase 1) does not include short fused warning products (TOR, SVR,FFW, SMW) which are planned to also be included in phase 2. | PDD_NWR.pdf |
| [New] Experimental NWS Watches, Warnings, and Advisories using ATOM and CAP XML based Formats | Provide NWS watches, warnings and advisories in industry standard formats commonly used to convey headline and alerting information in the Extensible Markup Language (XML) based ATOM and Common Alerting Protocol version 1.1 (CAP) formats. This SDD is a follow on replacement for a similar SDD issued November 18, 2003 for the experimentation of NWS products using RSS and CAP version 1.0.
These pages can be accessed at http://www.weatther.gov/alerts-beta/
The CAP 1.0 version (available at http://www.weather.gov/alerts/) will be replaced by the ATOM/CAP 1.1 offerings. Phase out of the CAP 1.0 version is expected to take place from January 2009 to December 2009. The CAP 1.0 version is considered obsolete with the production of the CAP 1.1 products; phase out of these products will allow NWS to free up computer resources. While availability of standard NWS watch, warning, and advisory products reaches 99.9%, current availability of the experimental CAP1.0/XML products is 99.5%, slightly less than the current standard for operational products of this type.
| cap1.1.pdf |
| [New] Experimental Palm Beach Tracon Approach and Departure Gates Forecast | This product is now covered by an umberalla PDD EXPERIMENTAL TRACON APPROACH and DEPARTURE GATE FORECAST PRODUCT (Southern Region). The experimental Palm Beach Tracon Approach and Departure Gates Forecast will complement the Collaborative Convection Forecast (CCFP) product by providing greater detail of convective occurrence and coverage when reflectivities are equal to or greater than 40 dbZ and tops equal to or greater than FL200. This graphic forecast product is a modification of the Tracon and Gate Forecast product used at the ZTL CWSU. | SR_CWSU_TRACON_Gates_PDD.pdf |
| [New] Experimental Polygon Special Weather Statement WFO Blacksburg and WFO State College | Storm based products will promote improved graphical displays and in partnership with the private sector support a wider distribution of products through cell phone alerts, pagers, web-enabled personal data assistants (PDAs), etc. A storm based product means the geographical area affected is defined by the latitude pairs listed at the bottom of the warning products.In situations where a more general SPS is needed (i.e. broad area of storms, winter weather phenomena, etc) SPS will not contain latitude / longitude information at the bottom of the product. | PolygonSPS.pdf |
| [New] Experimental Probabilistic Quantitative Precipitation Forecasts (Western Region) | In response to the NOAA and NWS goals, the Weather Forecast Office in Tulsa, Oklahoma has developed a method to provide probabilistic quantitative precipitation forecasts on a routine basis, in the form of probability of Exceedance (POE) forecasts (Amburn and Frederick 2006). These POEs will provide our clients and customers with more detailed precipitation forecasts that they can use in their decision-making processes.
Weather Forecast Office in Great Falls, Montana has adopted the same methodology as Tulsa to derive the probabilities and has made slight modification to the display output which Tulsa has adopted. This product is an optional product for Western Region WFOs.
| ProbabilisticQuantitativePrecipitationForecasts.pdf |
| [New] Experimental Probabilistic Tropical Cyclone Storm Surge Exceedance products | The Experimental Probabilistic Tropical Cyclone Storm Surge Exceedance products for 2009 consist of a series of exceedance probability graphics for the Gulf of Mexico and Atlantic coastal areas. The graphics indicate the probabilities of storm surge heights being exceeded. The suite of graphics range from 10 to 90 percent, at 10 percent intervals. The storm surge graphics 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. Additional information on the SLOSH model can be found at: http://www.nhc.noaa.gov/HAW2/english/surge/slosh.shtml. | Exp_PSURGE_EXC.pdf |
| [New] Experimental Real-Time Mesoscale Analysis (RTMA) | Product Description. The National Weather Service (NWS) weather forecast offices (WFO) 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 occurs for the CONUS region and 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 contains the same parameters as CONUS regions except for the cloud amount and precipitation products. An analysis uncertainty product is generated for all RTMA products except the cloud and precipitation products, and u and v wind components.
| RTMA_extension.pdf |
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