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Significant Weather Blog

Significant Weather Blog: Monday, August 3, 2026 8 AM

August 3, 2026

Flash Flood Warnings Issued for Portions of Central MA and Northern CT   An approaching upper-level trough and surface cold front in…

Flash Flood Warnings Issued for Portions of Central MA and Northern CT

 

An approaching upper-level trough and surface cold front in a very moist air mass (surface dewpoints in the 70s) has triggered bands of very heavy showers and embedded thunderstorms extending from northern CT to north central MA this morning.  These heavy downpours are moving over an area that received 3 to 6 inches of rain last week.  Hence, there’s limited opportunity for this new round of heavy rain to be absorbed into the ground resulting in high, rapid runoff.  Flooding of small streams and poor drainage areas in the warning areas is likely.  More showers, some very heavy, are expected off and on throughout today in most locations.  Additional localized flooding is possible.  There could also be a few thunderstorms with localized strong wind gusts this afternoon across western and central portions of southern New England.

Will be taking a closer look at this developing weather situation as well as a look ahead for any significant weather this week later this morning.

 

Next Message

Plan to issue the scheduled weekly significant weather outlook later this morning.

 

About this Blog and Disclaimer

The National Weather Service monitors the weather 24/7 and updates forecasts, watches, and warnings as necessary.  For most of southern New England, refer to your local Weather Forecast Office for the latest forecast/warning information at weather.gov/box.  For information from other Weather Forecast Offices, go to weather.gov and click on the location of interest on the map.

The frequency of this blog will depend upon the nature of the weather threat and availability of the author.  Thus, for the latest information on weather forecasts and warnings, refer to the National Weather Service, which monitors and forecasts the weather 24/7.

 

Blue Hill Observatory and Science Center (BHOSC)

The BHOSC maintains a continuous daily observation record that dates from February 1, 1885 without interruption and provides educational information on weather and climate to area students and the community at large.  Your support of BHOSC is much appreciated and enables this nonprofit organization to maintain the long-term climate record at the Blue Hill Observatory (longest continuous record in North America) and provide valuable educational resources on weather and climate via outreach to schools, site visits/tours, webinars, and conferences.  For more information on the Blue Hill Observatory and Science Center, explore bluehill.org.

 

Message issued August 03, 2026 by:

Bob Thompson
Retired National Weather Service Meteorologist
Blue Hill Observatory and Science Center Board member

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