Situation and medium-term forecast for

Issued 20th of February 2020

Situation and medium-term forecast

High pollen load in the east and south of Austria, fluctuating pollen levels in the rest of Austria!

Hazel and alder are in bloom all over Austria. Hazel is already beyond its peak pollination while the native alder species are reaching their pollen release maximum in the coming days.

In the alps, the pre-alpine areas and the Danube Valley unsteady weather conditions with rainfalls and sunny phases are forecasted for the weekend. These will cause fluctuating pollen levels and allergenic burden.

Fairweather conditions are forecasted for the south and east of Austria (Burgenland, Carinthia, Graz Basin). Here, consistently moderate to high symptom load is expected for pollen allergy sufferers sensitive to alder and/or hazel.

Note: Hazel and alder are closely related to birch. Pollen allergy sufferers reacting to birch pollen may potentially have the potential to have allergenic symptoms caused by these early bloomers (!cross-reaction!).

More and more ash trees are reaching their readiness to flower. In climatic favourable locations, single specimens are already in bloom. These may cause local low to moderate symptomatic burden for pollen allergy sufferers reacting to ash pollen. The sunny weather of the coming days will further the ripening of the ash flowers and will lead to a rise in allergenic burden at the beginning of the coming week.

What else: The pollen spectrum contains also pollen from elm, maple, poplar, willow, cypresses and yews.

We expect the readiness to flower for hazel inon
Viennaready to flower
Eisenstadtready to flower
St. Pöltenready to flower
Linzready to flower
Salzburgready to flower
Innsbruckready to flower
Bregenzready to flower
Grazready to flower
Klagenfurtready to flower
Bolzanoready to flower
Munichready to flower

Forecast from 20.02.2020
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: 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)
zum Team

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