Terminal Weather Dashboard help

The impacts board is a time series display of weather conditions. The potential impacts are colored based on severity and can be broken down to view specific criteria.

Forecast Board

The forecast board displays the latest TAF for the airport and provides data out to 36 hours, switching to LAMP forecasted data (outlined in magenta) following the TAF valid period. There are two formats for the board, a condensed view and an expanded view.

Condensed View

The condensed view displays data for multiple stations along the vertical axis and time along the horizontal axis. The first column contains the latest METAR observation, if available. Each subsequent cell represent hourly forecasts from TAFs or LAMP to 36 hours. LAMP data is outlined with a magenta color. Impacts are color coded by severity with red representing a high potential impact, orange a moderate potential impact, yellow a slight potential impact, while boxes are left blank if no impact is expected for that time period. The letters in the box represent the cause of the hazard. If TEMPO conditions are present for a certain hour, the data is displayed in brackets with the same coloration.

  • CIG - ceiling
  • VIS - visibility
  • TS or WX - thunderstorms (when present) or weather (rain, freezing rain, fog)
  • WSpd - wind speed
  • WGst - wind Gust

There may be multiple hazards however only the highest ranked from this list will be displayed for compactness.

Expanded View

For more detailed information for a specific site, click on the station identifier on the left. The expanded view lists weather conditions along the vertical axis.

  • VIS - visibility in miles
  • CIG - cloud ceiling in 100s feet
  • FltCat - flight category: VFR, MVFR, IFR, LIFR
  • Wx - weather
  • WDir - wind direction
  • WSpd - wind speed in knots
  • WGst - wind gust speed in knots

METAR Board

The METAR board functions the same as the impacts board, but the user can look at past METAR observations. On the expanded view, additional parameters are included. The full board displays:

  • Temp - temperature in fahrenheit
  • Dewpt - dew point in fahrenheit
  • Altim - pressure (altimeter) in inches HG
  • VIS - visibility in miles
  • CIG - cloud ceiling in 100s feet
  • Cov - cloud cover: CLR, FEW, SCT, BKN, OVC
  • FltCat - flight category: VFR, MVFR, IFR, LIFR
  • Wx - weather
  • WDir - wind direction
  • WSpd - wind speed in knots
  • WGst - wind gust speed in knots

Thresholds

There are currently tree options for highlighting potential impacts:

Impact

Thresholds with identified impacts to efficient operations of the National Airspace System. Please note these have very low ceiling and visibility impact levels that are less applicable for general aviation.

IMC

Traditional flight category rules for Marginal Visual Meteorological Conditions (MVMC/MVFR), Instrument Meteorological Conditions (IMC/IFR), and Low Instrument Meteorological Conditions (LIMC/LIFR).

CAC

Categorical Amendment Criteria. Flight rules as above modified based on FAA approach plates.

Flight Categories (IMC)

CategoryCeilingVisibility
LIFRbelow 500 feet AGLand/orless than 1 mile
IFR500 feet to below 1000 feet AGLand/or1 mile less than 3 miles
MVFR1000 feet to 3000 feet AGLand/or3 to 5 miles
VFRgreater than 3000 feet AGLandgreater than 5 miles

FAQ

What has changed recently?

The entire site was overhauled in October 2023. For information about the most recent updates, please see the change log.

How often do you update the website?

We fix critical bugs as soon as possible, and we deploy functional upgrades regularly. Please let us know if you find something that isn’t working.

Why is my URL link not working?

As part of the upgrade to the site, some pages were consolidated and some URL's have changed. Check out the link conversions to find what you are looking for. If you are still unable to find the information you are looking for, submit a question using the envelope in the top right.

Why can't I log in to my account?

Most features of AviationWeather.gov do not require an account. If you recently signed up for a new account, please check your email (including spam folders) for a confirmation email. Accounts are generally approved within one or two business days.

Where is the METAR page?

The interactive Graphical Forecasts for Aviation observation tab displays METARs along with other current data including surface fronts and radar imagery. To view METARs alone, click on the Layers button at the top right corner of the map and deselect items you do not wish to view. Decoded METARs can be displayed by enabling the "decoded METARs" option in the Map Options under the gear icon on GFA.

Raw and decoded textual METAR data can be displayed by selecting the Products dropdown and selecting METAR data.

Where is the Satellite/Radar page?

Satellite and radar imagery are available on the observations tab of the interactive Graphical Forecasts for Aviation, that displays surface observations, imagery, fronts, and more in one place. Satellite imagery is an optional layer available from the layer selector in the upper right corner of the map. To display satellite or radar imagery alone, deselect items on the layer selector to simplify the display.

How can I submit PIREPs?

Sign up for an account on our registration page, select PIREP Submit Access, and be sure to include your airmen’s certificate number or affiliation with an airline, flight school, government or military organization for validation purposes to streamline the process. Accounts are validated via the FAA Airmen Inquiry.

Then watch your email in order to verify your address and then confirming your account. Once you have an account and are logged in, select "Submit a PIREP" from the Tools dropdown and fill out the form. For more information on PIREP submit, use the link at the bottom, or click here.

How do I access the Flight Path Tool?

The flight path tool is now embedded into the interactive Graphical Forecasts for Aviation map. Click on the route button along the right side of the map to open the display. Enter the airports to navigate, and select the product you wish to display from the dropdown. Watch a video on how to use the cross sections here.

Where is the HEMS (Helicopter Emergency Medical Services) tool?

The HEMS tool has been integrated into the interactive Graphical Forecasts for Aviation. Click on the helicopter button in the upper right part of the map to switch GFA from general aviation mode into low-altitude mode, which offers similar features as the HEMS tool.

What happened to ADDS?

The ADDS static graphics were phased out and replaced with the Graphical Forecasts for Aviation, which offers greater flexibility and configurability; some static graphics continue to be available for decision support. The ADDS Text Data Server has been succeeded by the Data API. Please let us know if you need assistance with the migration.

How can I display list of METARs and/of TAFs? What about decoded products?

The METAR and TAF data pages provide access to raw, tabular, and decoded output that automatically refreshes every five minutes. The page is designed for quick lookups and printability.

Where is the Text Data Server? How do I download METARs?

The Text Data Server was discontinued and has been replaced by the Data API. The new data offerings are more flexible and provide more data. Interfaces designed for greater compatibility with the Data Server to ease the transition as well as cache files to retrieve many reports at once are also available.

How do I access data for previous dates?

The METAR data page displays up to the previous 96 hours of observations. The Archive View allows viewing nearly all products on the site as they were presented for up to the past two weeks. For data more than 14 days old please reference the resources available on bottom of the Archive View page.

Data appears to be missing. Where can I find more information?

Automated status information and the latest announcements can be found on the status page

Why is a particular station not reporting?

The site generally displays all observations within a minute or two of being reported as we receive it. Individual station outages are usual indicative of a problem at the source. AWC does not maintain weather stations or observing platforms.

What do all of the map symbols indicate?

A full listing of map symbols is available.

Why is the map dark?

Dark mode is automatically applied based on systems settings. Selecting the person icon in the upper right and toggling the switch to the left disables this mode.

Help page links