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Climate & Weather

Significant Weather Blog

This blog contains forecast discussions of pending significant weather events prepared by Robert Thompson, retired Meteorologist-in-Charge of the National Weather Service (NWS) Forecast Office in Norton, MA, former Board Chairman of the Blue Hill Observatory and Science Center (BHOSC), and current member of the BHOSC Advisory Council. The discussions are not a substitute for the official forecasts and warnings issued by the NWS Norton Forecast Office. They are intended as a complementary, educational resource for visitors to this web site. The forecast discussions provided here are the opinions of Mr. Thompson, and BHOSC accepts no liability associated with this information.

Significant Weather Blog Oct 7, 2026
Significant Weather Blog: Wednesday, October 7, 2026 11 AM

Isaias and Rachel   Am looking at two tropical cyclones this morning that will likely have an impact on the United States. …

Significant Weather Blog Oct 5, 2026
Significant Weather Outlook: Monday, October 5, 2026 10 AM

Weekly Significant Weather Outlook   It looks like a fairly quiet week weather-wise across southern New England.  Cold air intrusion will allow…

Significant Weather Blog Sep 28, 2026
Significant Weather Outlook: Monday, September 28, 2026 11 AM

Weekly Significant Weather Outlook   Nor’easter It has indeed been a long duration nor’easter with one more day of rain and minor…

Significant Weather Blog Sep 26, 2026
Significant Weather Blog: Saturday, September 26, 2026 11 AM

 Early Season Nor’easter   The large nor’easter off the U.S. east coast is slowly moving north northeast but will curl to the…

Significant Weather Blog Sep 25, 2026
Significant Weather Blog: Friday, September 25, 2026 10 AM

 Early Season Nor’easter   A large and strong early season nor’easter will impact southern New England through the weekend with some lingering…

Significant Weather Blog Sep 24, 2026
Significant Weather Blog: Thursday, September 24, 2026 3 PM

Strong Nor’easter Friday through Sunday   A large and strong early season nor’easter will impact southern New England mainly in the Friday through…

Significant Weather Blog Sep 23, 2026
Significant Weather Blog: Wednesday, September 23, 2026 6 PM

 High Impact Nor’easter Friday through Sunday   A large and strong nor’easter has begun to develop off the mid-Atlantic coast and will impact…

Significant Weather Blog Sep 22, 2026
Significant Weather Blog: Tuesday, September 22, 2026 4 PM

Late Week/Weekend Nor’easter   Meteorologists are continuing to monitor model projections of a large and slow-moving nor’easter off the U.S. east coast…

Significant Weather Blog Sep 21, 2026
Significant Weather Outlook: Monday, September 21, 2026 1 PM

Weekly Significant Weather Outlook   The focus for this outlook is on the increasing potential for a robust nor’easter late in the…

Significant Weather Blog Sep 14, 2026
Significant Weather Outlook: Monday, September 14, 2026 1 PM

Weekly Significant Weather Outlook   Heavy rain over the latter part of the weekend caused minor flooding along a portion of the…