Late September Nor’easter

By Scott Bachmeier • 27 September 2026

5-minute GOES-19 Mid-level Water Vapor images with overlays of surface wind barbs, peak wind gusts and surface pressure contours/fronts — from 1041 UTC on 25 September to 0001 UTC on 28 September

5-minute CONUS Sector GOES-19 (GOES-East) Water Vapor images (above) included plots of surface pressure contours and surface fronts — which showed the evolution of a strong Nor’easter that produced high winds and/or heavy rainfall from Maryland to Maine (WPC Storm Summary) from 25 September – 27 September 2026. There were a few METAR sites that reported peak wind gusts greater than 50 knots (plotted in red) from New York to Massachusetts. The surface low moved inland across central New Jersey around 1500 UTC on 27 September, then moved offshore 6 hours later around 2100 UTC.

5-minute GOES-19 daytime True Color RGB + Nighttime Microphysics RGB images created using Geo2Grid (below) frequently provided a good view of the lower-altitude clouds defining the center of the Nor’easter circulation during that 2-day period.