The midday GFS indicates two important trends/changes. The axis of the heaviest rain shifts east and includes Richmond, VA to Dover, DE and across Rhode Island/southeast Massachusetts to coastal Maine. Many areas receive 3 in. of rain. The snowfall forecast increases. In New England 10-20 in. of snow is forecast with >2 feet in northern New England mountain areas.

The Australian Bureau of Meteorology indicated November 2020 was the hottest on record. Additionally, the Bureau indicated spring 2020 was the warmest on record for minimum and mean temperature. Rainfall was well below normal in many parts of Australia but not as dry as last year. The November 2020 national average temperature was +2.9C according to the Bureau breaking the record of +2.4C in November 2014.

So how did La Nina precipitation climatology (from the past 25 years) for November compare with actual precipitation in the U.S., Australia and South America?

Now that tropical cyclone season is winding down we enter the next persistent issue for meteorological winter 2020-21 which is La Nina storms. La Nina storms produce three types of high impact weather certainly evident in the SUN/MON forecast.