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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 and former Board Chairman and current Board member of the Blue Hill Observatory and Science Center (BHOSC). 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 Mar 4, 2026
Significant Weather Blog: Wednesday, March 4, 2026 7 PM

Wintry Mix Thursday Evening/Night into Friday Morning Low level cold air intruding southward from Canada and northern New England will set the…

Significant Weather Blog Mar 2, 2026
Significant Weather Outlook: Monday, March 2, 2026 9 AM

Weekly Significant Weather Outlook Looks like a weather regime change lies ahead for this week as an upper-level ridge of high pressure…

Significant Weather Blog Feb 28, 2026
Significant Weather Blog: Saturday, February 28, 2026 10 AM

Weekly Significant Weather Outlook Update This message provides a brief update to the significant weather outlook issued earlier in the week.  …

Significant Weather Blog Feb 23, 2026
Significant Weather Outlook: Monday, February 23, 2026 3 PM

Weekly Significant Weather Outlook  Will begin this outlook with a few thoughts on the major nor’easter that will wind down this evening…

Significant Weather Blog Feb 22, 2026
Significant Weather Blog: Sunday, February 22, 2026 10 AM

Major Nor’easter Will Bring Heavy Snow, High Winds, and Coastal Erosion/Flooding Late Tonight and Monday Yesterday’s blog remains relevant and appears below…

Significant Weather Blog Feb 21, 2026
Significant Weather Blog: Saturday, February 21, 2026 10 AM

Major Nor’easter Will Impact Southern New England Late Sunday Night and Monday with Heavy Snow, High Winds, and Coastal Erosion/Flooding  Confidence is…

Significant Weather Blog Feb 20, 2026
Significant Weather Blog: Friday, February 20, 2026 3 PM

Light to Moderate Winter Weather Impacts Anticipated Tonight Major Winter Storm Potential for Late Sunday Night/Monday – Especially for the Southeast Half…

Significant Weather Blog Feb 19, 2026
Significant Weather Blog: Thursday, February 19, 2026 11 AM

A Tale of Two Storms Whether the weather actually turns out interesting or not, forecasting the next two events looks to be…

Significant Weather Blog Feb 18, 2026
Significant Weather Blog: Wednesday, February 18, 2026 9 AM

Updated Significant Weather Outlook Forecasting continues to be challenging this week into early next week.  The rationale for this morning’s update is…

Significant Weather Blog Feb 17, 2026
Significant Weather Blog: Tuesday, February 17, 2026 5 PM

Updated Significant Weather Outlook Will probably provide daily updated weather message blogs for at least a time this week due to a…