November 4 2020

I have all kinds of good news here! If you are not ready for winter it’s flipped your way.  If you want winter, do not despair. This may be a good sign.

This week started with flurries and will end with the 70s. Such is the way of an active weather pattern in early November. The cold air that brought us the strong winds has already be traded off for a warmer and quiet weather pattern.  It’s all about the jet stream, and it could hold for the next week.


Jet Stream Snapshot

The storm track (arrow) will shift west and north of us.

November 4 Jet Stream Warm Up



Keep in mind the old saying ‘what goes up, must come down’.  We are building a ridge (orange and red) in the jet stream that will lock us in to a quiet and warm weather pattern for a while. As that happens, the western US gets a trough (blue and green) will turn colder and stormy.

This is actually really good news to quell the wildfires and lower the risk for more.


Jet Stream Forecast Animation

The trend shows a building trough for the western US, while we stay on warm side.

November 4 weather outlook jet stream


Temperature Outlook

NOAA has projected a mostly likely outlook for the next 10 days to remain very warm in the east, while the west turns much colder.


November 4 temperature outlook NOAA Day 6 to 10



What does this mean in real numbers?

By November 8, Baltimore averages a high temperature of 59ºF, and we get 1 degree cooler every 2 to 3 days.  We can thank the low sun angle and losing 2 minutes of daylight each day.

But, the forecast projections have us reaching the lower 70s by Friday and remaining that warm through most of next week.

The trick is that compute models tend to underplay warm us this time of year. It is possible within this pattern we could see some days in the upper 70s to near 80ºF. That would be 20 to 25 degrees above average!

The end, perhaps next weekend.

Temperature Outlook Extended


November 4 weather forecast Baltimore temperature outlook


Arctic Oscillation

Good News For Winter Lovers

Think about the Law Of Averages. In my experience, when we see late season warm spell like this, it allows the cold to build elsewhere.  This will surge with with an abrupt end, that could bring us into even colder air for Thanksgiving Week.

One element we look at is the Arctic Oscillation. This pattern around the North Pole can demonstrate the strength of the Polar Vortex and resulting cold air available for us in the middle latitudes.

Positive Arctic Oscillation (+AO) = Warmer for us

Negative Arctic Oscillation (-AO) = Colder for us




The GFS Model Forecast below shows the trend for the AO over the next two weeks.  The forecast is the green line with the black dot.


November 4 weather outlook Artic Oscillation

After being positive for the stretch, the fall of the AO around November 14 coincides with the return to colder air shown in the forecast above.   This is forecast to reach the neutral level by November 20, and may continue to trend negative.


If this does trend negative, that would time with Thanksgiving week for the first chance to see some hint of winter nearby. This does not promise us a snowstorm! Let’s be clear about that! But it might start some Lake Effect Snow events, and perhaps some storms that could end with some first season snow showers before the end of the month.


Faith In The Flakes

I have a few more articles about the Winter Outlook to share with you. We still have a little time, but I am almost ready to make my winter outlook.  I will be cautious with the big fail from last year. But I am optimistic. Stay tune.






14 Local Maryland Pages (and York PA)

We have made a page for Maryland Weather which gives you the current conditions for 14 present area locations.

Local Hourly Forecasts and Local Radar
Central Maryland
Southern Maryland



Maryland Weather Page

Maryland Weather 

I wanted to keep it simple. Just the basics for a quick view at any time.

Maryland Weather Just In Weather


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