02/15/2024, 7:30 pm EST
Stratospheric warming has triggered arctic air across Russia. The frigid air mass expands toward China later this month. In North America, the pattern stays mild the second half of February.
News
02/15/2024, 7:27 pm EST
So far, during winter 2023-24 in North America, the prevailing climate is exceptionally mild across Canada and the Northern U.S. However, an 11-day period of hostile cold interrupted the warmth on Jan. 11-21 thanks to cross polar arctic airflow from Siberia. Similarly, Europe has observed a very mild winter season. There have been brief cold weather exceptions, one in early December and a second Jan. 7-14 featuring arctic air.
02/13/2024, 8:32 am EST
Solar Cycle 25 was off to a roaring start regarding sunspot activity in 2024 but has eased back toward the NASA Solar Cycle 25 peak forecast for late this year and 2025 during the past couple months.
02/12/2024, 5:26 am EST
Stratospheric warming leading to evolution of a large arctic air mass remains in the forecast for Eurasia. Latest indications are the air mass releases southeastward into China in the 1-15-day period rather than cross-polar into North America. Consequently, the U.S. gas population weight HDD forecast is revised milder for the second half of February.