21/00 UTC Eta sea-level pressure forecast valid 23/06 UTC.

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Speaker Notes:

By 06 UTC, the low was forecast to deepen another 5 mb, as it tracked well to the southeast of Cape Cod. Eta 18-hour QPF from 12 UTC on the 22d through 06 UTC on the 3rd ranged from around 0.25 inches across the northern part of our forecast area, to around 0.75 across the south.