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.

Clear And Cool Today

Hello everyone!

Today’s weather will be unusually lovely by June standards as low pressure develops to our south, and the area comes under the influence of cool Canadian high pressure. Highs will be on the cool side due to sometimes-breezy northeasterly winds bringing air into the region from the Canadian Maritimes. Look for mid 50’s along the southern coast, and mid 60’s farther north. Skies will be mainly sunny across the entire area today, with the possible exception of the immediate coastline of southern New Hampshire where some fog is possible due to winds having more of an onshore component.

-Jack

Humidity Decreases Today

Hello everyone!

Today will feature increasing sunshine and decreasing dew points as a cold front moves off to our south. NNW winds behind the front will usher in a drier airmass, which will be warmed to pleasant temperatures by downsloping. Highs will range from 65 in the north to 80 in the south. Plenty of cloud cover is noted on visible satellite imagery this morning, but clearing skies are working in from the west and north, so look for a gradual transition to sunshine through the day today. We’ll remain mostly dry with the possible exception of a brief shower over southern NH.

-Jack

Afternoon Showers And Thunderstorms Today

Hello everyone!

Today will feature afternoon showers and thunderstorms as a very slow moving cold front drifts in our direction from the northwest. Look for a mix of sun and clouds this morning with increasingly warm and humid conditions developing. A few showers will move through Southern NH this morning, but otherwise mostly dry conditions are expected for the next few hours.

Showers and storms will be strongest in the mountains this afternoon, as shown by this HRRR simulated radar image valid at 3 PM. Map via weathermodels.com

As we move into the afternoon hours, expect showers and storms to begin to pop up over the mountains. Winds in the mid to upper levels of the atmosphere are fairly light today, so storms will move slowly, and severe weather is not expected to be a major issue. The primary threats from these storms will be torrential downpours and lightning. Due to the slow storm motions, those downpours could linger in some areas, creating a flash flood risk. This risk is greatest in the mountains. Storms will weaken as they drift closer to the coast tonight. Highs will range from around 70 along the coast to around 80 inland.

-Jack

A Beautiful Late Spring Day Today

Hello everyone!

Today will feature beautiful late spring weather as high pressure retains control of the area while low pressure moves north to our west. Skies will be mainly sunny today, and winds will become southerly this afternoon. Those southerly winds will bring temps up into the low 80’s for the majority of the area, with the exception being areas along the coast, especially northeast of Portland where a southerly wind comes in off the still-chilly Gulf of Maine. Highs along the coast will sit around 70.

-Jack

Cooler Today

Hello everyone!

After a relatively warm day yesterday, a cooler day is in store for today as winds turn onshore, and the influence of the still-chilly Gulf of Maine spreads inland. Highs will range from 60 along the shoreline to 70 in the Connecticut River valley of Western NH. Skies are mainly sunny this morning, and we should retain more sun than clouds through the rest of the day as high pressure drifts just off to our east. No precipitation is expected.

-Jack

Clear And Warm Today

Hello everyone!

Northwesterly winds will bring clear and warm conditions to the area today as downsloping kicks into gear. Look for any last holdouts of morning fog/low cloudiness to quickly burn off over the next couple hours with mainly sunny skies expected by lunchtime. Temps will rise into the mid 70’s north and mid 80’s south, with the aforementioned northwesterly winds keeping any sea breeze circulations at bay.

-Jack

Another Generally Cool Day Today

Hello everyone!

Today will feature more generally cool weather as the influence of maritime Canadian high pressure lingers. Look for highs to be coolest along the coast, in the upper 50’s, and warmest in western areas, near 70. Cloud cover is widespread this morning, but should diminish some as a weak boundary moves through this afternoon. An isolated shower can’t be ruled out as that boundary moves through the mountains, but overall dry conditions are expected again today as well.

-Jack

Cool And Cloudy For Most Today

Hello everyone!

Today will feature cool temps for all, and cloudy skies for most as a backdoor cold front pushes off to our southwest, and northeasterly winds continue to transport cooler air in from Canada. Highs will range from around 50 in SW NH to around 60 northeast of Augusta, where some sunny breaks are expected throughout the day. Most areas will stay dry today, with the exception being southern NH where showers are expected to develop this evening as an area of low pressure moves by to our south.

-Jack

Hot Today

Hello everyone!

Unfortunately, today will feature hot weather as westerly winds kick downsloping induced warming into high gear. Look for temps to be pleasantly warm in the mountains, with highs around 80, while the coastal plain bakes under temps in the upper 80’s to low 90’s. Breezy westerly winds will make the heat a little more bearable by keeping the air moving, and keeping the humidity down. Skies will be mostly sunny, and no precip is expected.

-Jack

Thunderstorms Possible In Northeastern Areas Today

Hello everyone!

Today will feature generally sunny skies and fairly mild temps as a cold front approaches from the north. Look for some showers and thunderstorms to develop along this front, with the greatest shower/storm coverage expected across northeastern areas. Some of the stronger cells may produce some small hail and brief breezy conditions, but no organized severe weather is expected. Highs will range from 60 in the northern mountains to 80 in southern NH.

-Jack