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Boston Weather: 40.0°F | Mostly Cloudy

Weather: Thursday Threat

Thursday Threat

By Gerard Roe
Staff Meteorologist

In the short term, our weather will be rather mundane and very warm. The southerly winds are, however, an ominous harbinger of potential trouble. All eyes should be trained for the arrival on late Wednesday night of a very powerful storm now developing over Florida. The different forecast models have quite different tracks for this system. The different realizations would bring very different weather for us. At this stage it looks as though it will be a repeat of last week's dicey encounter, with the maximum precipitation staying offshore and with Boston seeing only the westernmost edge of the storm. This scenario brings strong winds Wednesday night and Thursday, and a moderate amount of mixed precipitation, beginning as snow, and possibly in time for the Wednesday commute home. If the storm should trend only a little more to the north, then we would instead see some snow ahead of the warm front, and large to enormous amounts of rain on Thursday. In any event, the mid-level steering of this storm is weak, and so its effects will linger through Thursday and into Friday.

The best guess at this time is for another near miss, but by this evening or Wednesday morning the track (and our fate) will be clearer.

Today: Partly sunny, and ludicrously warm. Light southerly winds. High 48F (9C).

Tonight: Becoming cloudy.

Wednesday: Clouds increasing. Winds from the north and northeast. Chance of light snow by afternoon or evening. High 36F (2C). Low 29F (2C).

Thursday: Our brush with doom. Check again, but probably light to moderate mixed precipitation, and becoming quite cold. High around 35F (2C). Low around 25F (4C).