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National Weather Service
Listing of EXPERIMENTAL Products
 
Product Name Brief Description Submitter Date
EXPERIMENTAL Instant Messaging (IM) During Significant Weather and Hydrologic Events IM is utilized by NWS operational personnel to share critical warning decision expertise and other types of significant weather information essential to the NWS mission of saving lives and property. This information is exchanged in real-time with the media and emergency response community, who in turn play a key role in communicating the NWS hazardous weather messages to the public. IM also provides media and emergency response partners with the ability to communicate significant event reports back to NWS operational personnel, who in turn utilize the information to make effective warning decisions. NWS partners can also use IM as an efficient means of seeking clarifications and enhancements to the communication stream originating from the NWS during a fast-paced significant weather or hydrologic event. Feedback processes such as these are crucial to maintain and improve our agency�s warning performance. Darone Jones 2007-09-28
Experimental 10 Percent Probability of Exceedance Wind Gust Grid (G10) Web page showing a graphical presentation of the 10% Probability of Exceedance Wind Gust Grid (G10) probability covering the Elko WFO's County Warning Area.These graphics represent a 10 percent chance of wind gusts exceeding the given value over the 12-hr period stated, or a 90 percent chance that the maximum wind gust during the 12-hr period will not exceed the given value. The graphics cover two 12 hour periods out to 24 hours Ryan Knutsvig 2008-05-20
Experimental 7-Day Evapotranspiration Forecast The experimental 7-day evapotranspiration forecast displays graphically on the Internet the expected amount of evapotranspiration in hundredths of an inch for each of the next 7 days using a reference crop of alfalfa. A second graphic is provided for each day that indicates whether the evapotranspiration is expected to be above or below normal. This product will be issued daily at 5 am local time on a seasonal basis (March 15-October 15). Rich Douglas 2007-07-09
Experimental Alaska Region NDFD Grids Under statute, the National Oceanic and AtmosphericAdministration (NOAA) National Weather Service (NWS) is charged to collect data on climate, water, and weather, provide forecasts and warnings of severe weather in order to protect life and property, and create and disseminate forecasts and other weather information for the benefit of a wide range of weather sensitive businesses and activities. By capitalizing on rapid advances in science and technology and infusing these advances into its operations, the NWS has taken steps to proactively respond to ever changing and growing demands of its users. The most recent experimental digital datasets (and associated graphic forecast displays) integrated into NDFD are the following elements for Alaska: Maximum Temperature, Minimum Temperature, 12-hour Probability of Precipitation, Wind Speed, Wind Direction, and Significant Wave Height. Duane Carpenter 2006-09-06
Experimental Carolinas Coast/Southeastern Marine Web Portal The National Weather Service's (NWS)Experimental Carolinas Coast/Southeastern Marine Web Portal provides marine observations, forecasts and short and long-fuse warnings for the coastal waters of North Carolina, South Carolina and northern Georgia and the Atlantic and Gulf coast areas of the Southern Region. The recent development of regional and sub regional coastal ocean observing systems under the national Integrated Ocean Observing System (IOOS) initiativecreates new opportunities for increased meteorological and oceanographicdata availability. Michael Caropolo, MIC 2007-03-19
Experimental 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 (http://www.swpc.noaa.gov/drap) and is an enhancement of the current D Region Absorption Prediction product (http://www.swpc.noaa.gov/dregion/index.html). 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, ASCII tabular values of total absorption at 10 MHz, and an ASCII message indicating warning and recovery times. o DRAP2 is updated every minute (see below for regional update latency) SWPC data and products are designed to provide accurate and real-time space weather information for the safety and benefit of our customers. Steven Hill 2008-06-19
Experimental Enhanced Thunder Product in the SPC Product Suite This Product Description Document describes an improved thunder guidance product that adds greater specificity for the probability of lightning production (i.e., Thunderstorms). The additional temporal and spatial resolution in the experimental thunderstorm outlooks provide better lightning forecast guidance for local NWS Weather Forecast Offices, emergency managers, media, and the general public. The enhanced product changes the temporal subdivision of the convective day to provide improved guidance on whether thunderstorms are expected to continue into the overnight hours. To accomplish this, the breakpoint between the two probabilistic products will be shifted from 0000 UTC to 0300 UTC. Art Thomas 2006-04-18
Experimental Expanded Point Forecast Matrix Webpage Product The National Weather Services (NWS)Experimental Expanded Point Forecast Matrix provides point forecast information using the NDFD data base for 36 sites across the Charleston CWA. This experimental web page will be linked to from the main Charleston, SC National Weather Service web page. Ross Dickman 2007-05-15
Experimental Fire Weather Point Forecast Matrix Land management agencies in Georgia and North Carolina have expressed a need for easily accessible tabular forecast data that is tailored toward fire behavior applications. A fire weather version of the Point Forecast Matrix (PFM) table fits this need well because it allows agency specialists to quickly run simple fire behavior models for planning purposes. The experimental product will be called the Fire Weather Point Forecast Matrix (PFW) and will be generated routinely for the National Fire Danger Rating System (NFDRS) sites or other areas as determined by the users. This additional data will help land management agencies to ensure the safety of fire crews as well as better plan prescribed burns and other projects in a cost and resource effective manner. Also, land managers have expressed a need for better tools to predict and manage smoke dispersion. They have also requested that the NWS include an Atmospheric Dispersion Index (ADI) and Low Visibility Occurrence Risk Index (LVORI) in the PFW product. WFO Fire Weather PFW’s are generated for the Remote Automated Weather Station (RAWS)/NFDRS sites using an edited version of the standard PFM formatter. This formatter produces needed fire weather parameters from the local WFO’s Digital Forecast Database (DFD). Although experimental PFW’s have been well-received by local WFO customers, there has been no attempt to standardize either the product or a web-based delivery method. Experimental PFW’s could be generated for any grid point in a DFD based upon user request. The web delivery of the product for fire weather customers will include a disclaimer at the top of the page stating “This experimental product is for planning and review purposes only and is not to be substituted for an official fire weather spot forecast. The data displayed are calculated from a 5.0 by 5.0 km digital database and only approximates weather conditions in highly varying terrain. Please relay any comments you have to your local NWS office. An example of the experimental PFW can be seen at: http://www.srh.noaa.gov/productview.php?pil=GSPPFWGSP . Larry Gabric 2008-04-04
Experimental Graphical Area Forecast (GFA) The Graphical Area Forecast (GFA) product is an experimental graphical representation of the current operational production of aviation area forecasts, which provide an overview of weather conditions which could impact aviation operations. Dorothy Haldeman 2003-01-28
Experimental Graphical Convective Outlook for the Alaska FIR The Alaska Aviation Weather Unit (AAWU) issues area forecasts that include thunderstorm information for each zone. These forecasts contain information as to the timing and some detail in a text format. This new product would provide this information in a graphical format. It will be the convective guidance for 0-12 and 12-24-hour time periods. Included are areas where convection will occur as isolated, scattered, or numerous. Severe convection potential would be outlined. Other details such as the thunderstorm bases and tops, timing of development, and some graphical reasoning indicated. Duane Carpenter 2008-06-30
Experimental Graphical Tropical Weather Outlook PDD modified to include the Central Pacific Hurricane Center in this experimental product. There were no other changes to the PDD. This product is a visual companion to the text TWO. The text TWO is an existing product that describes areas of disturbed weather and their potential for tropical cyclone formation. The gTWO indicates the current location of the weather systems by encircling them and indicating their potential for development by a color code. The gTWO will be issued for the Atlantic and east Pacific basins. Scott Kiser 2007-06-14
Experimental Grassland Fire Danger Index for the Kansas Plains The Grassland Fire Danger Index (GFDI) product/service will be a text and graphical representation of the Grassland Fire Danger Index values that correspond to the likelihood that fires will get out of control. Three-hourly GFDI values will be represented, giving customers a clear indication of not only the index value but also the time and duration of the values at a specific grid location Mary-Beth Schreck 2008-02-14
Experimental Gridded Significant Wave Heights from the National Centers The traditional format for the significant wave height products from the National Centers are graphical depictions of the observed and forecast wind-driven waves for the Atlantic and Pacific Oceans adjacent to the coasts of the Continental United States (US) and extending south over the Caribbean Sea and the west coast of Central America. These graphical products have been prepared for many years in the raster format by the Ocean Prediction Center (OPC) and the Tropical Prediction Center’s (TPC) Tropical Analysis and Forecast Branch (TAFB) and transmitted via radiofax and the internet. The production and dissemination of the traditional raster format for the graphical significant wave height products from the OPC and TAFB will continue. The experimental gridded products will be prepared for the initial wave heights, the 24 hour and 48 hour forecast wave heights in a gridded format. The experimental gridded products will be disseminated by the National Weather Service (NWS) Telecommunications Gateway to the Weather Forecast Offices (WFOs), National Centers, and other users. Wayne Weeks 2006-09-21

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