All posts by Jack Sillin

I’m a third-year atmospheric science student at Cornell University who has been blogging about the weather since 2011. While I’m not officially a meteorologist, I have accumulated a bit of experience forecasting both local weather (in western Maine and New Hampshire) as well as national/international weather during my time writing for weather.us and weathermodels.com. I also have experience programming in Python, teaching concepts in weather forecasting, and communicating forecast information to general audiences.

Storm update #8

Surface pressures are dropping to near 990 millibars 130 miles SE of St louis signaling that this is a rapidly developing system that has a pronounced spin and a good moisture supply. Snow forecasts have gone up slightly to 6-10″ at the coast and 9-15″ inland. Winds will be sustained at 25-30 mph with gusts over 35 mph.

Stay tuned!

-Jack

Storm update #7

This storm is REALLY getting its act together and we now have a rapidly strengthening 1000 millibar low centered about 130 miles SE of St louis. All previous predictions remain the same.

Stay tuned!

-Jack

Storm update #6

Rain has overspread new york city and is expected to arrive here in yarmouth maine at around 8:30 pm EST. Rain will arrive in boston around 6:00 pm EST and hartford around 2:25. Snow forecasts still hold at 5-10″ at the coast and 8-14″ inland.

Stay tuned!

-Jack

Storm update #5

As the storm draws nearer, with rain spreading into new york city. The track has shifted more to the ESE which will limit changeover at the coast. Snowfall predictions hold at 5-9″ at the coast and 8-14″ inland.

Stay tuned!

-Jack

First snow predictions

As the storm nears we can start making snow predictions. The early forecast calls for a total of 5-10″ of snow at the coast with 8-14″ inland.

Stay tuned!

-Jack

Storm update #4

The endless cycle of forecast tweaking continues… As of 11 EST it looks like more snow and less sleet/freezing rain.

This will likely change as we continue to tweak our predictions.

Stay tuned

-Jack

Storm update #3

As this storm churns through the ohio river valley the models cant come to a good agreement about the exact track of this system. The latest wobble in track takes it dead over the area. This means that we will see a little of everything, snow, sleet, freezing rain, and maybe a little plain rain.

Stay tuned!

-Jack

Storm update #2

As we adjust the track forecast it is looking like it will track farther SE which means that more snow will fall at the coast and less inland.

Stay tuned!

-Jack

Storm update #1

As I look at the radar I see that this storm is already very well formed with a nearly constant precipitation shield and some definite spin in the lower levels. This system is very moisture laden and will produce heavy precipitation. The tricky part is weather this precipitation will fall as rain, freezing rain, sleet, or snow. We will continue to monitor the forecasts and tweak the forecast.

Stay tuned!

-Jack

Major winter storm on the busiest travel day of the year!

The track of this storm takes it into the gulf of maine which means that we will be on the cold side of the storm. As a result anywhere from 5-12″ of snow can be expected across the area excluding york county where 1-4″ are expected.

Stay tuned!

-Jack