Issued 2nd of July 2020
Situation and medium-term forecast
Sunny weekend ahead, moderate grass pollen burden!
The working week ends with rainfalls all over Austria, bringing a little bit of relief to pollen allergy sufferers. From Saturday onwards the sun returns, and pollen and fungal spore burden will be on the rise again. Scattered rain showers will provide short-term relief over the weekend.
Remark: A weather situation like the current one can lead to a particular burden, because pollen could burst open during thunderstorms and release free allergen into the air.
Grasses are still the major contributors to the pollen spectrum. Despite they are already past their peak flowering period in the lowlands moderate burden must be expected throughout the next days. In higher altitudes the peak season of the flower grasses is reaching its end. Still, pollen concentrations may reach high values.
Main contributors for the airborne grass pollen content are cock’s-foot grass, meadow grass, and ryegrass. But also, foxtail grass, bromegrass, melic grass and false-oat grass are still flowering. The highest burden is expected in close vicinity to natural meadows. They do not only contain various grass species but also dock, sorrel, plantain and nettle leaf which increase burden for allergy sufferers.
In the alps, the green alder bloom is coming to an end, but may still cause a local allergenic burden. Due to the current weather conditions only a few green alder pollen grains will be transported to lower altitudes.
Sweet chestnut is still flowering in the east and south of Austria. Due to cross-reactivity it may causes burden in birch pollen allergy sufferers.
Besides the main aeroallergens following pollen types can be found in the pollen spectrum: cypresses, tree of heaven, lime tree, privet and members of the nettle and goosefoot families.
Due to the changeable weather conditions fungal spore concentrations in the air are increasing and moderate to high burden can be expected.
|We expect the readiness to flower for grasses in||on|
|Vienna||ready to flower|
|Eisenstadt||ready to flower|
|St. Pölten||ready to flower|
|Linz||ready to flower|
|Salzburg||ready to flower|
|Innsbruck||ready to flower|
|Bregenz||ready to flower|
|Graz||ready to flower|
|Klagenfurt||ready to flower|
|Bolzano||ready to flower|
|Munich||ready to flower|
Forecast from 02.07.2020
Note: The model results give an indication of the expected start of flowering, based on information provided by local pollen warning services with direct reference to the local situation. Start of flowering is not to be equated with the beginning of the pollen season. When the start of flowering is achieved, the majority of the plants have the potential to release pollen, but only when weather conditions are favourable.
Responsible for the content:
pollenwarndienst.at and the Department of Oto-Rhino-Laryngology of the Medical University Vienna, Research group aerobiology and pollen information
Uwe E. Berger MBA, Mag. Maximilian Bastl PhD and Mag. Dr. Katharina Bastl
medium-term forecast based on model and pollen data from Austria and surrounding countries
reprint and publication in parts or completely is permitted only quoting the source
weather data and today´s forecasts based synoptic data: ZAMG (Zentralanstalt für Meteorologie und Geodynamik)