With the Obamas in Martha’s Vineyard and the passing of Senator Kennedy, there hasn’t been a shortage of national news coverage of Massachusetts this past week. Nonetheless, tropical storm Denny is jockeying for attention as it makes its way towards Boston. Although there’s significant uncertainty in the storm’s track (and hence how much rain will fall here on campus), there is confidence in the prediction of the storms intensity. Because of the surrounding dry air, the upper-level convergence, and a southern shift of the jet stream, Denny will likely not become a hurricane.
But Denny can still provide a major inconvenience for Saturday’s orientation events. Using the same model, but “tweaking” the initial conditions, rainfall predictions for Saturday range from a quick shower (0.3") to 6+ hours of torrential downpours (3.5"). What is certain is that the greatest chance of moderately steady rain will happen Saturday mid-morning until evening time. Although it’ll probably be dry in the late evening, windy conditions will prevail. Sunday will be mostly dry, but passing showers lasting an hour or less are likely. After that, the weather is expected to be sunny and dry and should be much more cooperative for any outdoor activities all next week.
Tonight: Cloudy. Lows in the lower 60s°F (16°C). Southeast winds 10–15 mph.
Tomorrow: Rain (heavy at times) starting mid-morning and lasting through the evening hours. Highs in the upper 60s°F (20°C). Northeast winds 15 to 20 mph.
Sunday: Mostly cloudy with passing rain showers. Highs in the upper 70s°F (26°C)
Monday: Partly sunny. Highs in the lower 70s°C (22°C).