Wednesday: Hot and muggy, isolated thunderstorm potential
After the recent low pressure system to the north passes, and its cold front pushes through Maine, the chance for isolated storms for the northern regions of Maine is still possible in the afternoon as instability increases due to daytime heating. Temperatures are pretty similar to the past few days; northern and some central and western areas in the upper 70s to low 80s, and southern and coastal areas in the mid to upper 80s. Winds continue from the southwest and ranging from 5 to 8 mph. Dew points stay pretty high in the 60s statewide, and the air may feel a bit uncomfortable and sticky when you step outside.
Thursday: Thunderstorms possible statewide, slightly cooler temperatures
Another low pressure system following the previous one from Tuesday is approaching Maine, and its cold front will pass through from the west overnight Wednesday and into Thursday. This will result in slightly cooler temperatures statewide; northern and some western and central regions in the mid to upper 70s, and southern and coastal regions in the low to mid 80s. Another result of the incoming cold front is the potential for statewide thunderstorms all day on Thursday. The concentration of thunderstorms looks to center in the northern areas of the state, but isolated thunderstorms and showers may impact any where in the state.
The GIF above runs from 8 AM to 8 PM on Thursday, and shows reflectivity from a short-range model. This particular model can sometimes predict some storms being overly strong, but gives a good indication of where these storms are likely to occur. The main concentrations centers in the northern portions of the state, but some thunderstorms have potential to initiate any where in the state, thanks to the incoming cold front bringing a humid air mass, and some ~1000 surface-based CAPE values (energy in the atmosphere) in the northern portions of the state.
The summer heat is in full swing, and with it comes some danger to the body if not properly protected. It's important to apply sunscreen regularly when exposed, especially in the afternoon hours, where the sun's strength is at its peak. It's equally important to drink plenty of water to stay hydrated and dress in lightweight and light-colored clothing, with some sort of hat to protect your face. Stay safe in the summertime heat and practice heat safety!
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