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Listing of DELETED Experimental Products
 
DELETED Product Name Brief Description Submitter Status
Addition of Experimental Waterspout coding to the Special Marine Warning and Marine Weather Statement for all Coastal WFOS. NWS Central Region offices have issued Special Marine Warnings (SMW) and Marine Weather Statements (MWS) with tags for hail and wind as an operational product format since 2010. The purpose of this PDD is to change how these hail and wind tags are encoded to bring them into conformity with how they are done within the Severe Thunderstorm Warning product, and to introduce a new tag to help users better identify the potential threat from waterspouts for all coastal WFOs Brian Hirsch Approved for Operational
Experimental Alaska Region NDFD Grids PDD updated in 2014 to extend comment period. PDD updated in 2013 to extend comment period. PDD updated in 2012 to extend comment period. PDD updated in 2011 to extend comment period. PDD updated in 2010 to extend comment period and to update links. PDD updated in 2009 to include new elements: Hazards, Weather, Temperature, Dew Point, Wind Gust, Sky Cover, Apparent Temperature, Relative Humidity, Quantitative Precipitation Forecast (QPF) and Snow Amount. Under statute, the National Oceanic and Atmospheric Administration (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. Carven Scott Approved for Operational
Experimental Aviation Surface Forecast and Aviation Clouds Forecast Graphics The Aviation Surface Forecast and Aviation Cloud Forecast graphics are snapshot images derived from a subset of the aviation weather forecasts valid for the continental United States (CONUS) and coastal waters used within the Graphical Forecasts for Aviation interactive web-based display. The Aviation Surface Forecast graphics display surface visibility with overlays of surface wind and gusts, predominant precipitation type (i.e., rain, snow, mix, ice, or thunderstorm) coincident with any cloud, and predominant weather type (i.e., haze, fog, smoke, blowing dust/sand). Graphical Airmens Meteorological Information (AIRMETs) for Instrument Flight Rules (IFR) and Strong Surface Wind are overlaid. The Aviation Cloud Forecast graphics display cloud coverage fraction (few/scattered, broken, overcast) for clouds with bases below Flight Level 180 (FL180 - 18,000 feet above Mean Sea Level (MSL)). Text overlays indicate cloud coverage and height in feet above MSL at that particular location. Clouds above FL180 are indicated as Cirrus or CI above. Graphical AIRMETs for Mountain Obscuration and Icing are overlaid. Forecasted points may not represent conditions in proximity. Kevin Stone Approved for Operational
Experimental Aviation Weather Center Impacts Terminal Aerodrome Forecast (TAF) Board The experimental AWC Impacts TAF board is a time series display of weather conditions at select airports across the United States. Each box (hourly forecasts from TAF) is color-coded based on the level of the hazard. White represents no impact, yellow slight impact, orange medium impact, and red high impact. The letters in the box represent the cause of the hazard. They are as follows: -CIG – Ceiling (hundreds of feet, Above Ground Level [AGL]) -VIS – Visibility (statute miles) -WX – Weather (see legend) -WSpd – Wind speed (knots) -WGust – Wind gusts (knots) Mike Bettwy Approved for Operational
Experimental AWC PIREP Online Submission Form Pilot Reports (PIREPs) are reports of meteorological phenomena encountered in flight. These reports assist other pilots, dispatchers, and flight planners with flight plan preparation, situational awareness, and operational decision making. The PIREPs are integrated into the NWS forecast production process to help improve the accuracy of the forecasts, which include human generated products such as AIRMETs and SIGMETs as well as automated products such as the Graphical Turbulence Guidance (GTG), the Current Icing Product (CIP) and the Forecast Icing Product (FIP). PIREPs are particularly valuable in areas where surface-based observations are unavailable. The Aviation Weather Center PIREP online submission form enables registered users to enter PIREPs electronically, which will be distributed and displayed graphically on the Aviation Weather Center’s website www.aviationweather.gov. Users will be able to register at www.aviationweather.gov/user and submit their PIREPS at www.aviationweather.gov/airep/submit. All users will be subject to validation on the basis of having (1) an active pilot’s license (2) a .gov or .mil email address or (3) a group ID number for airlines. All other account requests will be evaluated on a case by case basis. Mike Bettwy Approved for Operational
Experimental Collaborative Decision Making (CDM) Convective Forecast Planning (CCFP) Guidance The experimental CDM Convective Forecast Planning (CCFP) guidance is a graphical representation of convection meeting specific criteria of coverage, intensity, echo height, and forecaster confidence. The experimental CDM Convective Forecast Planning (CCFP) guidance graphics are produced every 2 hours and valid at 2-, 4-, 6-, and 8-hours after issuance time. The experimental CDM Convective Forecast Planning (CCFP) guidance will be automatically produced from the NOAA SREF, HRRR, HIRES ARW models, but will share the same format and be disseminated exactly as the human-produced Collaborated Convective Forecast Product. Additionally, to meet user needs, the experimental CDM Convective Forecast Planning (CCFP) guidance will be issued through March 1, 2016 Debra Blondin Approved to Discontinue
Experimental Forecast of Reference Evapotranspiration for Short Canopy Vegetation (CR) The experimental reference evapotranspiration forecast will be displayed as a graphic of gridded data within the WFOs county warning area. The forecast is the expected amount of daily reference evapotranspiration in hundredths of an inch for the next 7 days and a total reference of evapotranspiration for the 7 day period. The forecast is calculated by standardizing on the tall canopy vegetation (50 cm full cover alfalfa) algorithm. This product will be issued three times a day around 5 am, 12 pm, and 4 pm local time. John S. Eise Approved to Discontinue
Experimental Forecast of Reference Evapotranspiration for Short Canopy Vegetation (WR) The experimental reference evapotranspiration forecast will be displayed as a graphic of gridded data and a supplemental tabular display of selected sites within the WFOs county warning area. The forecast is the expected amount of daily reference evapotranspiration in hundredths of an inch for the next 7 days and a total reference of evapotranspiration for the 7 day period. The forecast is calculated by standardizing on the short canopy vegetation (12 cm or 4.72 in grasses or alfalfa) algorithm. This product will be issued twice a day around 5 am and pm local time. Claudia Bell Approved to Discontinue
Experimental Graphical Forecasts for Aviation In May 2015 the National Weather Service received a formal request from the Federal Aviation Administration (FAA) for the NWS to cease production of textual Area Forecasts (FAs), contingent upon the provision of equivalent meteorological information in support of aviation.The Graphical Forecasts for Aviation include observations and forecasts valid for the continental United States. Observational data and warnings are time synchronized and available by the hour for the current time and the prior six hours. Hourly model data and forecasts, including National Digital Forecast Data (NDFD), are available to 15 hours in the future. Wind, icing and turbulence forecasts are available in 3000 ft. increments from the surface up to 18000 ft. MSL, and in 6000 ft. increments from 18,000 MSL to FL420 (42,000 ft. MSL). Turbulence forecasts are also broken into LO (below 18,000 MSL) and HI (at or above 18,000 MSL) graphics. A maximum icing graphic and maximum wind velocity graphic (regardless of altitude) are also available.Multiple fields of interest are combined in categories that the user is able to select from the top level Weather menu. The data for each category is determined by the time period, observations (current time and the prior six hours) and forecasts (valid up to 15 hours in the future). Additional information is available in text format when mouse-clicking on the map or using the hover function. The “Configure” menu enables the user to customize the satellite and radar displays in addition to choosing parameters for the observations and aviation advisories displayed. Imagery, observations, and forecast graphics are overlaid on high-resolution basemaps from ESRI, including colored relief, satellite and street views. Overlays include navigational aids, airports, and heliports for the entire United States. More detail is revealed as you zoom in and individual layers can be turned on or off independently. Debra Blondin Approved for Operational
Experimental Hold Over Threat Index (Elko) In the Great Basin a significant threat to large fire spread occurs when relative humidity is low and strong winds develop a day or two after a lightning event. The Holdover Threat Index is a GFE graphic that displays the threat of “holdover fires” for the WFO Elko county warning area. It can also be displayed on the web with all other fire weather graphical forecasts. This graphic is intended to heighten awareness for days when conditions are favorable for smoldering fires to grow. Users of this product are the fire weather community. Claudia Bell Approved to Discontinue
Experimental Hurricane Threats and Impacts Web Interface The experimental Hurricane Threats and Impacts Web Interface (HTI-Web) is an internet-based decision-support service designed to help users quickly interface with local hazard information whenever tropical storm and/or hurricane watches and warnings are in effect along the United States East and Gulf coasts, including Puerto Rico. Local threat assessments and corresponding potential impacts information about tropical storm or hurricane wind, storm surge, flooding rain, and tornadoes are provided by coastal Weather Forecast Offices (WFOs). Select preparedness information is also provided. Mike Dion Approved to Discontinue
Experimental Impact Based Warnings This is an expansion of the NWS Experimental Central Region Impact Based Warning demonstration in 2012 and 2013.Severe Thunderstorm Warning (SVR), Tornado Warning (TOR) and Severe Weather Statement (SVS) products will be stratified into categories distinguishing extreme cases from base convective warnings. Additional enhanced wording will be included to convey information about associated impacts, specific hazards expected, and recommended actions, both within the bullet statements and as part of the tag line codes.Based on feedback from the Central Region 2013 Experimental Impact Based Warnings, the 2014 demonstration will include some changes. The most significant change for the 2014 national experiment is that the impact statements for “CONSIDERABLE” and “CATASTROPHIC” serve as markers of confidence of tornado occurrence, with both reflecting an “elevated tier” of tornado damage and risk. The term CATASTROPHIC will only be used when a tornado is striking an actual community. Issuing enhanced convective warnings in 2014 will be the 38 Central Region Weather Forecast Offices (WFOs), 5 WFOs within NWS Southern Region (Norman, OK; Tulsa, OK; Jackson, MS; Lubbock, TX and San Angelo, TX); 1 WFO within NWS Eastern Region (Blacksburg, VA); and 2 WFOs within NWS Western Region (Great Falls, MT and Glasgow, MT). Gregory Schoor Approved for Operational
Experimental Impacts Terminal Aerodrome Forecast (TAF) Board The Aviation Weather Center (AWC) experimental Impacts Terminal Aerodrome Forecast (TAF) board is a time series display of weather conditions at airports with significant impact on the National Airspace System (NAS) across the United States. Each box (hourly forecasts from TAF) is color-coded based on the level of the impact, defined by thresholds unique to each individual airport. White represents no impact, yellow slight impact, orange moderate impact, and red high impact. The letters in the box represent the cause of the hazard (including CIG, VIS, WX, WSpd, WGst).The AWC experimental Impacts TAF Board allows the aviation community to quickly ascertain the specific weather hazards at key airports across the United States, based on the TAFs. Information on the timing and level of impact are also included. This data is displayed graphically on the AWC’s testbed website at: http://testbed.aviationweather.gov/taf/board. The display assists dispatchers and flight planners with flight plan preparation, while also raising situational awareness and improving operational decision making. The AWC experimental Impacts TAF Board is also meant to consolidate pre-existing situational displays into a single, authoritative source. Mike Bettwy Approved for Experimental Implementation
Experimental Impacts Terminal Aerodrome Forecast (TAF) Board The Aviation Weather Center (AWC) experimental Impacts Terminal Aerodrome Forecast (TAF) board is a time series display of weather conditions at airports with significant impact on the National Airspace System (NAS) across the United States. Each box (hourly forecasts from TAF) is color-coded based on the level of the impact, defined by thresholds unique to each individual airport. White represents no impact, yellow slight impact, orange moderate impact, and red high impact. The letters in the box represent the cause of the hazard (including CIG, VIS, WX, WSpd, WGst).The AWC experimental Impacts TAF Board allows the aviation community to quickly ascertain the specific weather hazards at key airports across the United States, based on the TAFs. Information on the timing and level of impact are also included. This data is displayed graphically on the AWC’s testbed website at: http://testbed.aviationweather.gov/taf/board. The display assists dispatchers and flight planners with flight plan preparation, while also raising situational awareness and improving operational decision making. The AWC experimental Impacts TAF Board is also meant to consolidate pre-existing situational displays into a single, authoritative source. Mike Bettwy Approved for Experimental Implementation

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