Issued 17th of January 2022
Situation and medium-term forecast
Hazel reaches readiness to flower!
Changeable weather conditions will lead to a short relief for pollen allergy sufferers on Monday. From Tuesday onwards the weather forecast predicts more sunshine and temperatures around 5 °C in several regions of Austria, resulting in low to moderate allergenic burden.
The catkins of hazel are already reaching readiness to flower in climatically favored areas where they are responsible for the majority of allergenic burden.
While the Spaeth’s alder has passed its peak pollination period in the eastern party of the country, burden still must be expected in the western parts of Austria. The catkins of alder species which are native to Austria still need some time until they reach readiness to flower.
The forecasted start date of the hazel and alder pollen season is calculated based on forecast models. Due to the uncertainty of long-term temperature forecasts, the actual flowering start of hazel and alder can still vary. The forecasts become more accurate as the season approaches.
What else: The pollen spectrum contains pollen of cypresses and yews.
|We expect the readiness to flower for hazel in||on|
|Vienna||ready to flower|
|Bozen||ready to flower|
Forecast from 17.01.2022
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. Johannes Bouchal
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)