Thanksgiving Week Starts With Sunshine
Two Weather Systems Lie Ahead Cold to Follow
Thanksgiving Week Starts With Sunshine
Two Weather Systems Lie Ahead Cold to Follow
It is Thanksgiving week and for me at least it is the best holiday of the year. It is a holiday about family and giving thanks. We are all getting ready to travel from point a to point b so it is important the weather not become an obstacle. It does appear that whether you are travelling locally or a long distance either by plane or by car, much of the country is seeing nothing in the way of seriously adverse weather activity this week. That said we have a sunny start to the week as high pressure is overhead and moving out. Temperatures this afternoon will reach the upper 50s and lower 60s with no precipitation on radars up and down the East Coast.
SATELLITE WITH LIGHTNING STRIKES
WEATHER RADAR
Two weather systems are on the table for this week. The first is a cold front that will be approaching from the Great Lakes tonight and moving through Tuesday morning. Moisture is not ample as the Gulf of Mexico and Atlantic ocean are shut off. There will be clouds coming in tonight and some showers will be moving through Tuesday morning from west to east.
Most areas will see a tenth of an inch or less as these showers go by. They will exit in the morning and then weather conditions improve in the afternoon Tuesday with decreasing clouds. Temperatures will be on the warm side immediately behind the front so most highs should reach into the 60s.
There is a little bit of cold air behind the front so we will chill off a bit into Wednesday morning with lows in the 20s in cold spots inland and low to middle 30s most everywhere else. Wednesday is also a big travel day ahead of Thanksgiving and we see no weather issues. We will have sunshine with some afternoon arriving high clouds. Most highs will be in the chilly upper 40s to around 50.
Low pressure develops in the Tennessee Valley Wednesday and it will head northeastward Wednesday night and Thursday. We are going to see rain Thanksgiving day. The GFS model is showing split waves which implies 2 surges of rain with a short break between the two. The European wants to have just one main low coming out. Either way we are going to see rain from time to time Thursday into Thursday night.
Which ever model is correct, both show this system or systems to produce 3/4 to 1.25 inches of rain and that creates another dent in the drought. Once this system plays through we have improving weather conditions for Friday but we will also be at the beginning of a sustained colder weather pattern that may last for at least 10 days to 2 week. Friday should see developing sunshine with highs in the 40s.
The weekend begins the decent into cold temperatures. This time of year the average high is in the lower 50s and we will be 5 to 10 degrees below average for much of the time over the weekend and next week. Long range models show that this developing pattern will have staying power as higher pressures build in the Western US and across Northern Canada and Greenland with lower pressures over Eastern Canada. This creates a pathway for cold polar air to move into the US. We have not seen something like this over the last couple of years as in the last 2 winters any cold shots (and there haven’t been many) would come in for a few days or a most a week before going out. It is different this time as we head into the start of December. The colder than normal scheme will be from the Rockies to the East Coast.
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MANY THANKS TO TROPICAL TIDBITS FOR THE USE OF MAPS
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