Magnetic storms in Jena

Magnetic storm in Jena today: planetary Kp = 0.3 (G0). Over the last 7 days the maximum Kp above Jena reached 4.7 (G0); storm days (G1+) this week: 0.

Jena sits at geomagnetic latitude 50.9°. The nearest magnetic observatory continuously recording the field is Lviv, 868 km away. Population 104,712.

Magnetic storms and health of Jena residents: at Kp ≥ 5 weather-sensitive people may experience pressure swings, headaches, sleep issues. Especially pensioners and people with hypertension should watch the forecast. During a storm — hydrate more, avoid alcohol and strong coffee, avoid intense physical load.

Technical consequences for Jena at G3+: GPS, HF radio and precise positioning systems may glitch. Drivers on long routes should watch the forecast for the next 24–72 hours. Data source: NOAA Space Weather Prediction Center, refreshed every 10 minutes.

Over Jena during the last 24 hours. Kp reached a maximum of 3.3 around 02:00 local time and dipped to 1.0. The planetary trend over the past 6 hours is falling — the magnetosphere near Jena is in the recovery phase. So far this month the planet has logged no G1+ storm days with a G1 or stronger geomagnetic storm.

Aurora visibility threshold for Jena. At a geomagnetic latitude of 50.9°, the minimum Kp giving a realistic chance of visible auroras above Jena is about Kp ≥ 6. The current equatorial Dst index is 0 nT — the magnetosphere is in a quiet phase. Dst complements Kp by showing how long and how deep a storm's main phase has been — useful context when checking whether auroras are likely tonight.

Weather and atmospheric pressure in Jena right now. Temperature +20.1°C, atmospheric pressure 747.4 mm Hg (996.4 hPa), cloud cover 100%, humidity 46%, wind 4.7 km/h. During G1+ geomagnetic storms, swings in atmospheric pressure tend to amplify symptoms for weather-sensitive people: those with hypertension often notice blood-pressure spikes, and readings below 1000 hPa combined with Kp ≥ 5 frequently bring headaches and fatigue. That is why the Jena page shows both indicators side by side. Weather data from Open-Meteo (CC BY).

Aurora viewing window for Jena tonight. Sunset is at 19:37 local time, sunrise tomorrow at 04:43. Moon phase — waning gibbous with 98% disk illumination. Heavy cloud cover lowers the chance of seeing auroras even during a strong storm — it may be worth waiting for the next clear night..