Antarctic Oscillation.  This is the least important of the four teleconnections, with little research being done on how it affects the Northern Hemisphere.  I only use it to see when there are big sw [..]

This is a product issued by the National Weather Service.  It is a signal that conditions will be dangerous either due to flooding, fog, wind, snow, or wintry weather.  However, an Advisory does not m [..]

In weather, when making a longer term forecast or looking at storms, it is often good to compare to previous patterns or storms, called analogs.

Arctic Oscillation.  This is one of the three most important teleconnections.  When the AO is negative, there is stronger blocking in the atmosphere that sends sets colder air up better to eject into [..]

 Advanced Research WRF model.  This is one of two 48 hour short range, high resolution models.  It is used to help forecast precipitation totals and fine tune forecasts right before storms hit.  Simil [..]

In simple terms, blocking in the atmosphere is formed by ridges or areas of stagnant high pressure that dictate storm movement and can slow storms down.  In a progressive pattern, there is less blocki [..]

This is a program that takes a vertical cross-section of the atmosphere and shows temperatures and other data throughout all of it.  At any certain time, it enables the viewer to see the temperature a [..]

Canadian Meteorological Centre, which hosts the CMC weather model.  This weather model is on average slightly less accurate than the GFS and ECMWF weather models, and does well in patterns with a lot [..]

Climate Prediction Center, which forecasts droughts and longer term weather, such as 3-month forecasts, 2-3 week forecasts, etc.  Their products I find are rarely very informative across microclimates [..]

This is one of the least accurate weather models, which occasionally can show a decent solution but is rarely used seriously.  It is run twice a day at 6z and 18z, and essentially comes out at 5 AM an [..]