[Weather] [2023.05.20 AM] NWS Boston EM Briefing; Heavy Rainfall and Potential Urban/Poor Drainage Flooding Today and Tonight

[BOX Operations - NOAA Service Account]

Good morning,

Please find a briefing attached regarding the potential for heavy rainfall
and urban/poor drainage flooding today and tonight.

There has been a significant trend upwards in the expected rainfall from
today/tonight's system over the last 12-24 hours. Widespread rain totals of
1-3" are likely, with isolated amounts of up to 4" possible across the CT
River Valley. A secondary local maximum of precipitation is possible across
southeastern Massachusetts and southern Rhode Island, though confidence is
lower in maximum rain totals in this region.

While rain will fall over a 12 hour period, downpours and isolated
thunderstorms are possible; though the threat for thunder is isolated to
the south coast and southeastern Massachusetts.

Kind regards,

Kristie Smith and Andrew Loconto
If you have any questions or would like more information, don't hesitate to
contact us via this email address, on NWSChat <https://nwschat.weather.gov/>,
or at the following:

National Weather Service Boston/Norton, MA
46 Commerce Way
Norton, MA 02766
508.622.3280
Website <http://www.weather.gov/boston> | Facebook
<http://www.facebook.com/NWSBoston> | Twitter
<http://www.twitter.com/NWSBoston>
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