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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 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…

Significant Weather Blog Sep 7, 2026
Significant Weather Outlook: Monday, September 7, 2026 10 AM

Weekly Significant Weather Outlook   A long period swell may produce significant rip current activity along exposed east-facing beaches today.  Otherwise, pleasant…

Significant Weather Blog Sep 1, 2026
Significant Weather Blog: Tuesday, September 1, 2026 11 AM

Weather Update   Southern New England Weather Update An upper trough interacting with a nearly stalled warm front to our southwest will…

Significant Weather Blog Aug 31, 2026
Significant Weather Outlook: Monday, August 31, 2026 11 AM

Weekly Significant Weather Outlook   Any area of concentrated or widespread hazardous weather seems unlikely at this time, although a couple rounds…

Significant Weather Blog Aug 24, 2026
Significant Weather Outlook: Monday, August 24, 2026 10 AM

Weekly Significant Weather Outlook   Hazardous weather (beyond perhaps an isolated severe thunderstorm) appears unlikely in southern New England this week.  A…

Significant Weather Blog Aug 17, 2026
Significant Weather Outlook: Monday, August 17, 2026 10 AM

Weekly Significant Weather Outlook   Significantly hazardous weather appears unlikely across southern New England this week.  The large-scale pattern features a broad…

Significant Weather Blog Aug 10, 2026
Significant Weather Outlook: Monday, August 10, 2026 10 AM

Weekly Significant Weather Outlook Finally, a Break in the Heat and Humidity Later this Week Hot and humid conditions persist into the…

Significant Weather Blog Aug 3, 2026
Significant Weather Outlook: Monday, August 3, 2026 10 AM

Weekly Significant Weather Outlook Showers and a Few Thunderstorms Today – Some with Heavy Downpours with a Risk of Localized Flash Flooding…

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

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

Significant Weather Blog Jul 31, 2026
Significant Weather Blog: Friday, July 31, 2026 11 AM

Wrap Up for July 28-30 Rain Event   An anomalously strong upper-level trough sharpened over the Northeast this past week and caused…