IMGW issues fog warnings across nine Polish voivodeships as visibility drops to 100 metres
The Institute of Meteorology and Water Management issued first-degree fog warnings for nine voivodeships, forecasting visibility below 200 metres from Saturday night into Sunday morning.
Warning details and geographic scope
The Institute of Meteorology and Water Management (IMGW) issued first-degree meteorological warnings for dense fog covering nine Polish voivodeships. The warning takes effect on Saturday at 22:00 and remains active until 10:00 on Sunday morning. The alert applies to the entire territory of Pomeranian, West Pomeranian, Kuyavian-Pomeranian, Warmia-Masurian, and Lubuskie voivodeships, along with the majority of Greater Poland. Portions of Lower Silesian, Masovian, and Podlaskie voivodeships are also covered by the advisory. Forecasters project dense fog that will restrict horizontal visibility to 200 metres, persisting for at least eight consecutive hours across the designated areas. Drivers have been cautioned that road conditions will become difficult during the overnight and early morning hours.
- Dense fog reduces visibility to 100 metres across western and northern cities
- IMGW first-degree fog warnings take effect across nine voivodeships
- First-degree fog alerts expire across the country
- Dense fog is projected to return to Lower Silesian and Opole voivodeships
Saturday morning observations and road conditions
The newly issued alerts follow widespread fog that disrupted Saturday morning across western and northern sections of the country. After 6:00 on Saturday, extensive low stratiform cloud cover blocked sunlight and created heavy mist and fog in multiple regions. Ground stations in Legnica, Leszno, and Lębork recorded horizontal visibility falling to 100 metres. Stations in Wrocław, Świnoujście, and Kielce observed visibility limited to 200 metres, while Chojnice logged visibility of 600 metres. Meteorologist Damian Zdonek noted that cloudiness would prevent clear skies across the corridor from Lubusz Land through Kuyavia to Pomerania.
Saturday morning may be unpleasant for some residents, especially in western and north-western Poland.
- Legnica
- 100 m
- Leszno
- 100 m
- Lębork
- 100 m
- Wrocław
- 200 m
- Świnoujście
- 200 m
- Kielce
- 200 m
- Chojnice
- 600 m
Atmospheric conditions and weekend temperatures
A high-pressure system covers Poland and the vast majority of continental Europe, while low-pressure systems with associated fronts remain active only along northern and north-western European fringes. A shallow low-pressure trough and a weak cold front are moving across northern and north-western Poland. Influxes of polar air, which carry higher humidity in the west, are interacting with nocturnal surface cooling to generate dense fog. Saturday afternoon temperatures reached 16 to 18 degrees Celsius in the north and up to 23 degrees Celsius in the south under light, variable winds.
Saturday night temperatures will drop to between 3 and 5 degrees Celsius in the south-east and the Sudeten foothills, around 8 degrees in central regions, and between 10 and 12 degrees in the north-west. In south-eastern lowlands, ground temperatures will fall locally to 1 degree, reaching minus 1 degree Celsius in Carpathian mountain basins.
Sunday forecast and outlook for next week
On Sunday, clear or lightly clouded skies will persist in south-eastern Poland, while the remainder of the country will experience moderate to heavy cloud cover. Light, passing rain showers are forecast in northern areas, while morning fog will dissipate across affected zones around 10:00. Maximum temperatures on Sunday will reach 16 to 17 degrees Celsius in northern and north-eastern districts, approximately 19 degrees across the central belt, and 22 degrees in the south. Coastal areas will see moderate and gusty westerly winds, while inland winds will stay gentle.
Following Sunday morning's clearance, IMGW weather hazard projections show calm conditions across Sunday afternoon and Monday. IMGW forecasters anticipate that dense fog will return on Tuesday, specifically targeting Lower Silesian and Opole voivodeships.
