# Meteorological and atmospheric activity in Poland > Live situation record from CLSTR: https://clstr.news/situations/meteorological-and-atmospheric-activity-in-poland > Updated: 2026-10-19T19:44:24.000Z. Sources: 30. Developments: 3. In early October 2026, Poland experienced significant atmospheric activity, including a solar coronal mass ejection that made the aurora borealis visible in northern regions. Meteorologists also monitored a strengthening polar vortex, with the Institute of Meteorology and Water Management (IMGW) forecasting a mild start to the 2026/2027 season. By mid-to-late October, meteorological volatility intensified. Cyclone Ulf brought unseasonably warm air to the south, with temperatures reaching 24 degrees Celsius and mountain wind gusts hitting 90 km/h. This heatwave was followed by a cold front bringing winter-like conditions, with heavy precipitation and snow accumulations of up to 20–30 cm predicted for the Sudetes, Tatras, and southern highlands. As October transitioned into November, a significant shift in air circulation occurred. Forecasts indicated a move toward colder temperatures, with daytime highs rarely exceeding 8 degrees Celsius and nighttime temperatures dropping below zero, creating risks of frost and icy roads. Heavy snowfall was anticipated in the south and southeast, with mountainous regions potentially receiving 10–20 cm of snow and uplands seeing 5–10 cm. Despite these cold episodes, long-term projections for December 2026 suggest temperatures may remain above the 1991–2020 averages in regions such as Mazovia, Lower Silesia, and Lesser Poland, though intermittent cold waves are expected. ## Claims - Temperatures in the south may reach 20-24 degrees Celsius before the cold front arrives. (corroborated by 3 sources) - Snowfall in the mountains could exceed 20-30 cm. (corroborated by 2 sources) - A cold front is moving into Poland, bringing heavy rain and wind. (corroborated by 2 sources) - Snowfall in the mountains could reach 20–30 cm. (corroborated by 2 sources) - Temperatures in the south may reach 21°C before the cold front arrives. (corroborated by 2 sources) - Heavy rainfall of 5-45 mm is expected in some parts of Poland. (single source) - Wind gusts in Podkarpackie may reach 80 km/h. (single source) - Wind gusts in the Sudetes may reach 90 km/h. (single source) - A first-degree meteorological warning has been issued for four counties in Podkarpackie. (single source) - Wind gusts in Podkarpacie may reach 80 km/h. (single source) - Rainfall in some areas may reach 5–45 mm. (single source) - The weather change is expected to end the current drought period. (single source) ## Timeline ### 2026-10-19: Poland weather: Extreme temperature shifts and incoming snow Poland faces extreme weather shifts, moving from unseasonable warmth up to 24°C to incoming cold fronts bringing snow and heavy winds. 22 sources. https://clstr.news/cluster/poland-weather-forecast-warmer-november-and-december-expected ### 2026-10-13: Poland weather: IMGW issues long-term winter forecasts IMGW long-term forecasts for Poland suggest a mild start to the 2026/2027 winter season, with warmer temperatures in late 2026 followed by more typical wintry conditions in January and February. 15 sources. https://clstr.news/cluster/poland-winter-forecast-warm-november-and-december-expected ### 2026-10-10: Atmospheric phenomena including aurora borealis and polar vortex activity reported in Poland Poland may experience the aurora borealis due to a strong magnetic storm, while the strengthening polar vortex signals a potential shift in winter weather patterns for the 2026/27 season. 4 sources. https://clstr.news/cluster/atmospheric-phenomena-including-aurora-borealis-and-polar-vortex-activity-reported-in-poland --- Cite as: Meteorological and atmospheric activity in Poland. CLSTR, https://clstr.news/situations/meteorological-and-atmospheric-activity-in-poland