Issued 20th of February 2019
Situation and medium-term forecast
The hazel and alder pollen season put up pace!
The readiness to flower was attained for hazel and alder widespread in the lowlands of Austria. The hazel and alder pollen season 2019 is characterized by a rather late start of the pollen season.
Pollination was favoured recently by the spring-like temperatures and has started in many regions. Pollen allergy sufferers may still evade to higher elevated regions. First high pollen concentrations occurred already in thermic favoured lowlands. Currently, up to a high burden has to be expected there during sunshine and temperatures of 10°C.
The current weather forecasts predict a less spring-like weather for the weekend. The release of hazel and alder pollen will be reduced in less favourable conditions (precipitation, temperatures below 10°C). In general, pollination is possible during temperatures of 5°C and dry conditions, but significantly lower.
Attention: An increase of pollen concentrations has to be expected, if spring-like weather dominates (sunshine, temperatures of 10°C) or continues.
Note: The immune system of a pollen allergy sufferer may be particularly sensitive at the start of the pollen season. Birch pollen allergy sufferers may be potentially concerned by the pollination of the “early bloomers” due to cross-reaction.
What else: The pollen spectrum contains also pollen from cypresses and yews.
|We expect the readiness to flower for hazel 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|
|Bozen||ready to flower|
|Munich||ready to flower|
Forecast from 20.02.2019
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 und Mag. Dr. Katharina Bastl
medium-term forecast based on model and pollen data from Austria and surrounding countries
weather data and today´s forecasts based synoptic data: ZAMG (Zentralanstalt für Meteorologie und Geodynamik)