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Chart links

Surface charts

AWN also produces a wide range of its own surface charts, many updated hourly -- here

Upper air charts

Go here for help in using these charts

  1. Australian, New Zealand and some Antarctic aerological diagrams from the Bureau of Meteorology. These elegant Skew T diagrams currently require ID: bomw0007 and PASSWORD: aviation. Large and clear, they show the latest and previous temperature and dewpoint traces and winds. They also give non-standard hour traces, such as Sydney's 6am/3pm combination, which the Uni of Wyoming (below) doesn't. Some help for use and interpretation: Click on the sounding above 700hPa and it will jump to the bottom. Click below this level and it will jump to the top. Click to the left of the Sounding (over the pressure numbers) and it will jump back to the map. On the upper right of the Sounding are some Stability Parameters etc. PW = precipitable water, TT = total totals. For the parcel drawn in the diagram in grey, Ts = surface temperature, Ds = dewpoint, Plcl = lifted condensation level pressure, Tlcl = lifted condensation level temperature, LI = lifted index. (01/06/00)
  2. Australian and New Zealand upper air charts and aerological diagrams from the University of Wyoming. This site has been overhauled, and now offers both upper air maps and individual station soundings as Skew-T diagrams and data in a variety of forms. For Australia, select Pacific or South Pacific as your region. The diagrams are normally available about noon EST for the full Australian upper air network, and about midnight for a reduced network. (25/11/01)
  3. Australian, New Zealand and Antarctic upper air charts from Australian Atmospheric Sounding Information. These charts are designed for soaring pilots and gives easy access to the latest upper air soundings and a 10-day archive. The diagrams are more like tephigrams than the usual Skew-T, and an additional panel shows predicted convection height. A detailed and very accessible help page explains how to read the diagrams and estimate convection height, cloudbase and winds. (21/11/08)
  4. Upper air data and aerological diagrams from the US National Climatic Data Center and Forecast Systems Laboratory. Data is available from 1998 to current. If you're not familiar with codes and WMO numbers, select Country on the first screen, then Australia, Yes and the format you want on the second screen. You can then select the location or locations by name on the third screen. This site makes it easy to select several locations and times, then open the diagrams in separate windows, then click between windows to make useful comparisons. (25/11/01)
  5. Current and latest week's upper air tephigrams for 5 stations in New Zealand from VUW for 00 and 12 UTC daily (16/01/00)
  6. Detailed upper air and surface analysis charts from the US Navy MyWxMap site. This large range of charts is produced twice daily from the US NOGAPS model, and currently presents the best easily-obtainable upper air analysis for Australia available on the web. Click in the 0 hour column to get any of over 20 charts, or use the archive of the past four 12-hourly analyses. Similar charts for the rest of the globe are also available. By going to the main site and creating a (free) account, you can set up a similar set of customised charts for any area of the globe you wish, such as southeastern Australia. (18/08/02)
  7. Upper air analysis charts from the US Medium Range Forecast computer model from COLA. There are six panels giving surface pressure/1000-500hPa thickness, 850hPa temperature, humidity and winds, 700hPa vertical velocity, 500hPa height and vorticity, 200hPa (jetstream) winds and divergence, precipitable water and instability index. (For detailed descriptions, click here.) The charts are based on 00z data, and are usually available by 11z - check the date to see that they're current, or check their current status - if they haven't appeared on time! (17/08/02)
  8. Upper air analysis charts from the BoM LAPS model, updated around noon and midnight EST daily: 850hPa | 700hPa | 500hPa | 250hPa. From Airservices Australia. These will appear sideways on your screen, but print out nicely. (16/04/01