Onset of Winter in Northern Germany
Northern Germany is currently experiencing the harsh realities of winter, with the return of sub-zero temperatures and snowfall. This sudden change in weather is causing slippery road conditions across the region. The cold wave, brought on by the high-pressure system ‘Hannelore’ from Scandinavia, is expected to bring intermittent sunny spells, especially in northern Schleswig-Holstein.
Snowfall and Road Conditions
Areas, particularly in the south of Schleswig-Holstein and Mecklenburg-Western Pomerania, are anticipating several centimeters of fresh snow. The forecasted temperatures range from minus three degrees in the Southern Harz to plus two degrees on Juist Island. Alongside the cold, a moderate to fresh northeast wind is blowing, especially along the coast. Hamburg’s winter service is actively working to manage these conditions, with over 700 personnel deployed for clearing major roads, bus routes, and selected bike paths.
Challenges in Schleswig-Holstein
In contrast to Hamburg’s relatively controlled situation, Schleswig-Holstein faced several accidents due to slippery roads. The police reported six people, including a child, lightly injured in three collisions. While no accidents were reported in the north and middle parts of the state, Elmshorn and areas around Lübeck experienced several incidents.
Looking Ahead to the New Week
The start of the week might bring colder temperatures, with forecasts of up to minus nine degrees at night. According to meteorologist Michael Knobelsdorf, this wintry situation in North Germany is expected to persist, at least until Tuesday, possibly throughout the week. This means that ice and slippery conditions will continue to be a concern.
Impact of Frost on Flooded Areas
The arrival of frost in flood-hit areas is a double-edged sword. While it might help stabilize dykes by making them firmer and more impermeable, it could also exacerbate damage to already flooded houses. Standing water freezing and expanding poses a serious risk to the structural integrity of buildings. Additionally, the flooding hinders the frost from reaching the ground, which prevents soil loosening, a natural process beneficial for agriculture.
Farmers and Wildlife Affected
The combination of flooding and frost presents a complex situation for farmers. Frost is usually beneficial for soils, but when fields are underwater, the soil cannot rejuvenate during winter, affecting its capacity to absorb water in spring and potentially impacting crop yields. The WWF, however, is less concerned about wildlife, stating that animals and plants in these regions have adapted to flooding.
Precautions for Homeowners
Homeowners in flooded areas are advised to prevent frost from penetrating damp building parts, as frozen water expands by about 10%, causing significant damage. Moderate and short-term frost is unlikely to freeze water in cellars, but homeowners are encouraged to pump out flooded basements while considering other risks.
Emergency Services Prepared
Emergency services, including the Technical Relief Agency (THW), do not foresee major issues for their personnel due to the dropping temperatures. They are well-equipped and housed in heated accommodations, prepared for any weather conditions. The THW mentions possible adjustments to shift lengths if temperatures drop further.
Warning Against Recklessness
Authorities warn against reckless behavior on frozen floodwaters. Incidents of people venturing into flooded areas on kiteboards or canoes have been reported, which is extremely dangerous. The THW continuously cautions against entering these areas, noting an increase in water rescue operations.
As Germany faces the twin challenges of flooding and frost, the situation calls for cautious and adaptive responses from all stakeholders, including homeowners, farmers, wildlife conservationists, and emergency services. The coming weeks will be critical in managing the impact of this severe weather on the affected regions.