Records Continue To Fall In U.S.; La Niña Update; European Winter Forecast Calls For Arctic Finish; Southern SSW; + New Study: IPCC’s Models “Significantly Overestimate” Sea Level Rise

Atmospheric dynamics are flashing cold signals from pole to pole.

Records Continue To Fall In U.S.

Early September is delivering November-like chill across large swathes of the United States.

On Saturday, Sheridan, Wyoming posted 31F (–0.6C), while Baker, Montana dropped to 30F (–1.1C) — both new records. Livingston tied its 32F (0C) mark. Patchy frost was reported across ranchland, a rare sight for September's opening week.

In Minnesota, Duluth tied its 1904 record at just 52F (11.1C), Hibbing set a new low maximum at 50F (10C), and Ashland, Wisconsin broke its 1926 mark with 53F (11.7C). International Falls tied its 53F (11.7C) record, and Brainerd matched 57F (13.9C).

Further south, Lexington, Kentucky logged its fourth record low in two weeks, falling to 45F (7.2C) Sunday morning. Burlington, Iowa tied its Sept 7 record of 42F (5.6C) from 1956, with nearby towns also dipping into the low 40s (≈5–6C).

A slew of daily records have fallen over the past 24 hours...

...adding to the thousands that have been toppled since the last week of August.

Frost advisories currently stretch across five states, with the NWS forecasting continued record lows Monday.

La Niña Update

Another La Niña could emerge this fall.