To get Digital Forecasts, Soundings, or Topo Maps, select a location by
pointing with the mouse and left click to select it. Weather data retrieved will be the data for the closest grid point to the latitude and longitude selected. For instance, the mm5 report from Blanchard launch is centered on a point midway between Lummi and Samish Islands.
Choose a new Latitude and Longitude above,
or click on the site below for which you want information.
This page references several different sources for spot forecasts. Most are in some way attached to the National Weather Service. The mm5 soundings and meteograms are the exception, being generated by the folks at University of Washington.
Canadian Forecasts are only available for some of the different forecast types. 12km GFS both soundings and metograms, RUC2 and Maps soundings. None of the digital forecasts are available for Canada, except Deifenbaker Park, which has a USA grid point 2 blocks away. Maps of Canadian sites are availble from the Google links and from the separate Atlas Canada links below. The Atlas Canada maps are excellent, but very cumbersome to load.
* The 4 Blanchard buttons are there because Blanchard sits on a cusp between grid points for both the WRF model and the MM5 model. One reason the forecasts are rarely "right on". For mm5, the left, westerly button is for a grid point somewhere on a line between Lummi Island and Samish Island and thus is giving an over-the-water forecast. The Easterly grid point is quite a few miles inland from Blanchard but does give an over-the-land forecast.
The WRF Blanchard buttons, that read "Launch" and "LZ" give forecasts for very different altitudes, the LZ button is at 0, and the Launch button at 1240'. Unfortunately, neither one takes into account the abrubt change in topography, with Blanchard essentially a 1500' bluff at the water's edge.
Note that both Ft. Ebey and Smith Island coordinates generate the same meteogram and sounding from the MM5. The one for KNUW Whidbey Island Naval Air Station, is different. This means that according to MM5, the forecast for Ft. Ebey is the SAME as the forecast for Smith Island and different from the NAS. Experience has shown that the winds an the Fort can be quite different from Smith Island and from the NAS, so ask a long time Whidbey person for interpretation of the data. Remember that "Whidbey is On" may mean anything from steady 8 mph from SW to gusty 25+mph from the WNW, depending on who is saying it.
I haven't thoroughly explored the differences for these two with the WRF digital forecasts.
There is some bias on the map coordinates that differs from browser to browser. You can compensate for it if you know the actual coordinates of some spot, e.g. the 49° for the US-Canadian Border.
If you work out similar biases for other flying sites than Whidbey or Blanchard, let me know and I will incorporate the information here.
Topographic maps generated come either from Google Maps, terraserver-usa.com, or for the Canadian maps, from Atlas Canada.