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.
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.
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.
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.