Forecast

Sunshine and grass pollen on Monday, with rain bringing relief from Tuesday onwards!

The week begins in Vorarlberg with a sunny and dry Monday. Under these conditions, grass pollen can spread unhindered, meaning that people with pollen allergies should expect high levels of pollen. On Tuesday, a rain front will arrive and remain until the middle of the week. The rainfall will reduce pollen levels and provide allergy sufferers with lasting relief.

Grass pollen is currently the main allergen in the ambient air in Vorarlberg. Species currently in bloom include brome grass, false barles, false oat grass, as well as honey grass, tufted grass, meadow grass, cock's foot grass and foxtail. Grasses are also flowering at higher altitudes. In larger deciduous forest areas, grass pollen levels are currently generally lower.

Rye is still flowering, but has already passed its peak. Its pollen is mainly released in the morning. As it is relatively large and has limited dispersal ability, this leads to higher levels of pollen, particularly in sunny weather in the immediate vicinity of rye fields.

In addition, nettles, plantain and sorrel are flowering, which may further increase pollen levels.

At altitudes above 1,000 metres, the green alder continues to flower. As long as the sun is shining, the main concentration of pollen will remain within its distribution area. Rainfall will keep pollen concentrations low and largely prevent the long-distance transport of pollen to lowlands and valley areas. For people who are sensitised to birch trees, green alder pollen is particularly relevant, as cross-reactions can occur.

In Vorarlberg, lime trees are still in bloom. Their flowers are adapted for pollination by insects, which is why their pollen rarely enters the air in significant quantities. However, their intense floral scent can irritate the airways of sensitive individuals.

Fungal spores are already present in the ambient air in quantities relevant to allergy sufferers. Fungi release increased amounts of spores, particularly after rainfall, which can lead to a rise in spore levels.

In addition to the pollen types already mentioned, pollen from pine, spruce, umbellifers, elder, papilionaceous plants and cypresses is currently also present in the pollen spectrum. However, these pose only a very low allergenic risk.