Hay fever is more than sneezing. Blocked sinuses, itchy palate, conjunctivitis, eczema flares, and asthma tightness often move together when birch, grass, or ragweed counts jump. Thunderstorm asthma episodes show that pollen grains can rupture into ultrafine fragments during humid gust fronts, producing sudden spikes that bypass usual preventive routines.
Reading your body alongside the map
Note whether symptoms begin outdoors, improve after showering, or track specific taxa in the weekly RAEP-style indices ClearSpot mirrors. If medication stops working during a predictable taxon season, allergists can adjust immunotherapy or rescue plans when you bring them dated symptom charts aligned with our timeline.
Limits of forecasting
Models interpolate between stations; local microclimate (courtyards lined with birch) can exceed grid values. Treat forecasts as prioritisation tools: when the app says high birch and you always react, pre-emptive steps beat waiting for a crisis.