Trough axis will be aligned over the region tomorrow, with H85 temps around -2C advecting in. Cyclonic flow with residual moisture will result in clouds most of the day. This will keep highs stuck in the mid 50's. Clouds will dissipate in the late evening, with the diurnal rise in stability. We'll see decent radiational cooling with lows dropping into the low 30's (about 5F below normal).

On Friday, ridging pushes east, rapidly increasing H85 temps up to around 10C in the late afternoon. Along with dry westerly flow over the region and sunny skies, highs will reach the 70's. Because the warm advection will occur quickly, timing nuances will dictate high temperatures to +/- a few degrees.

Saturday through Monday will feature strong Bermuda high pressure over the west Atlantic inducing west to southwest flow. H5 ridge heights reach 582dm up to central New England. H85 temperatures will be between 13C and 16C. Under sunny skies with good mixing, highs will soar into the 80's. Sunday looks like the warmest day for the region, when a few areas could hit 90 (See yesterday's forecast discussion for record overview). The ECM still wants to push a backdoor front into eastern parts of the region, but this would not significantly affect Keene besides an increase in diurnal cumulus.

Through the period, shortwave troughs will be shunted north by the brick wall ridging in the east, but by Tuesday, a piece of energy will be dropping out of Canada that should bust through the wall. Timing is uncertain, but at this point, it looks like Wednesday will feature the frontal passage. Showers and thunderstorms will likely accompany it. Behind the front, we get reintroduced to a wet pattern. ECM and GFS still hint at remnant ridging over the southeast that could at least prevent temperatures from falling much below normal.