| Product Name |
Brief Description |
View PDD |
| (Click to see details) |
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(Shift-Click to get file) |
| Air Quality Index (AQI) | The Air Quality Index (AQI)), also know as Clearing Index and Ventilation Index is both a text and graphical product produced by forecasters in support of the Fire Weather Program. The AQI has been used for many years by health and land management officials to help determine pollution and smoke dispersion on any given day. AQI numbers range from 0 (no dispersion) to 1000+ (excellent dispersion). When used as a Ventilation Index, values range from 0 to 100,000 | AirQuailityIndexPDD.pdf |
| Airman's Meteorological Advisories (AIRMET) | AIRMETs are concise descriptions in abbreviated language of the development and occurrence or expected occurrence in time and space of specified en-route weather phenomena issued by the National Weather Services Aviation Weather Center, Alaskan Aviation Weather Unit, and Weather Forecast Office Honolulu. AIRMET phenomena can affect the safety of aircraft operations. Bulletins contain details of potentially hazardous conditions over the continental United States, Alaska, Hawaii, and adjacent waters. An AIRMET will be issued when any of the following weather phenomena occur and affect an area of at least 3,000 square miles:
Moderate icing,
Moderate turbulence,
Sustained surface wind of 30 knots or more,
Ceilings less than 1,000 feet and/or visibility less than miles affecting over 50 percent of an area at any one time or,
Extensive mountain obscuration (may be less than 3000 square miles for Pacific Ocean islands).
| AIRMETv2.pdf |
| Alaska Graphic Area Forecast | The Alaska Graphic Area Forecast (GFA) is a graphical representation of forecasts contained in the text Area Forecasts (FA) for Alaska. The GFA is comprised of four separate graphics produced using NMAP software at the Alaska Aviation Weather Unit (AAWU). | AAWU_GAF.pdf |
| Alaska Low Level Significant Weather Graphic (SWL) | The Alaska Low Level Significant Weather Graphic (SWL) is a graphic product providing an outlook forecast of significant weather for aviation below 25,000 ft (FL250). | SWLG.pdf |
| Alaskan Sea Surface Temperature Analysis | Sea surface temperature analysis for the waters surrounding Alaska.
| AlaskanSeaSurfaceTemperatureAnalysis.wpd |
| Atlantic and Pacific High Wind and Associated Seas | Depicts areas of strong winds and associated seas over large parts of the Atlantic and Pacific. Issued outside the hurricane season. | APHWS.pdf |
| Atlantic Hurricane Outlook | The Climate Prediction Center (CPC) issues the Hurricane Outlook for the Atlantic basin. No outlook, however, can give certainty as to whether or not a particular locality will be impacted by a tropical storm or hurricane in any given year. | AHO.pdf |
| Audio Weather Briefing | The Audio Weather Briefing is an Internet-accessible recording that provides a wide suite of weather information. The recording contains information that alerts users to any hazardous weather that is forecast to affect the region for a period of seven days from the recording date, with a heavy emphasis on the current days weather. The recording explains, in broad and primarily non-technical terms, what weather features are expected to affect the region, as well as what specific weather hazards may result from these features (flooding, tornadoes, excessive heat, severe thunderstorms, tropical weather, fog, rip currents, etc.) | DailyAudioWeatherBriefingPDD.pdf |
| Aviation Area Forecast (FA) | Aviation Area Forecasts (FAs) describe in abbreviated language the development and occurrence or expected occurrence in time and space of specified en-route weather phenomena below Flight Level (FL) 45,000 ft (450). The FA is a forecast of visual meteorological conditions(VMC), clouds, and general weather conditions over an area the size of several states.
In Alaska, the FA also includes forecasts of Instrument Flight Rule (IFR) conditions as well as other AIRMET and SIGMET information on thunderstorms, wind, icing and turbulence.
Over CONUS and Hawaii, the FA must be used in conjunction with the in-flight aviation weather advisories to understand the complete weather picture. Together, they are used to
determine forecast en-route weather and to interpolate conditions at airports for which no Terminal Area Forecasts (TAFs) are issued. | FA.pdf |
| Aviation Digital Data Service | The Aviation Digital Data Service (ADDS) makes available to the aviation community through the internet digital and graphical analyses, forecasts and observations of meteorological variables. Developed as the data distribution component of the Aviation Gridded Forecast System (AGFS), ADDS is a joint effort of NOAA Forecast Systems Laboratory (FSL), NCAR Research Applications Program (RAP), and the National Centers for Environmental Prediction (NCEP)Aviation Weather Center (AWC). ADDS makes access to National Weather Service aviation observations and forecasts easy by integrating this information in one location, and by providing visualization tools to assist the application of thisinformation for flight planning. | ADDS.pdf |
| Aviation Digital Data Service Flight Path Tool | The FPT allows a user to view data along a specified route of flight. The user can view important weather information on a map. Points can be entered along a route, so that the data can be viewed in a vertical cross section. Weather information that can be displayed on the FPT horizontal and vertical cross section views includes, but is not limited to:
Wind
Temperature
Relative humidity
Icing potential
Turbulence potential
AIRMETs and SIGMETs
PIREPs
TAFs
METARs
| FPT2PDD.pdf |
| Aviation Tropical Cyclone Advisory (TCA) | The TCA is an alphanumeric text product produced by hurricane forecasters consisting of information extracted from the official National Hurricane Center forecasts. The TCA is intended to provide short-term tropical cyclone forecast guidance for international aviation purposes.
| AviationTropCycAdv.pdf |
| Aviation Weather Warning (AWW) | The AWW is a National Weather Service (NWS) operational warning for weather with the potential to impact ground operations at some airports. Specific warning criteria are decided by local airport management and the supporting Weather Forecast Office and | AWW.pdf |
| Blowing Dust Potential Product | The Blowing Dust Potential graphical forecasts are designed to provide customers enhanced information on the potential for blowing dust (low, moderate, high, very high) to reduce visibilities below 1 statute mile during the next two days for areas in the Pendleton County Warning Area (CWA) prone to blowing dust (primarily the Columbia Basin and Blue Mountain Foothills). | PDT.dustgraphic.pdf |
| California Fire Weather Web Page and Emergency Communications Center Dispatch Area (ECCDA) Forecast Summaries | For the past several year, land management and fire suppression agencies serving California have expressed a need for more generalized fire weather forecasts suitable for agency radio broadcasts from Emergency Communication Center Dispatch Area (ECCDA) offices. These twice-daily fire agency radio broadcasts are critical to relaying life saving information to fire fighting crews in the field. The ECCDA Forecast Summary is a methodology developed to fulfill this need.
| ECCDA_PDD.pdf |
weather.gov 
