Magnetic storms in Sosnovyy Bor
Magnetic storms in Sosnovyy Bor, Leningradskaya Oblast' today. Current Kp index, 3-day forecast for Sosnovyy Bor, local time, geomagnetic latitude and aurora visibility chance.
Data as of 24 Aug, 10:52 (Europe/Moscow).
Weather in Sosnovyy Bor
Weather data: Open-Meteo (CC BY).
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Local context
Sensitivity · Sosnovyy Bor
High sensitivity (sub-auroral zone)
Kp is a planetary index — the same globally. Local impact depends on geomagnetic latitude: the higher it is, the more noticeable the storm.
14-day calendar with Kp, moon and cloud factors
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Geomagnetic context for Sosnovyy Bor
Magnetic storm in Sosnovyy Bor: 3-day Kp chart
Aurora forecast in Sosnovyy Bor
| Date | Max Kp | Moon | Clouds | Score | Outlook |
|---|---|---|---|---|---|
| Mon, Aug 24 | 1.7 | 82% | 100% | 0 | Auroras are very unlikely tonight. |
| Tue, Aug 25 | 1.7 | 90% | 87% | 0 | Auroras are very unlikely tonight. |
| Wed, Aug 26 | 1.7 | 95% | 38% | 1 | Auroras are very unlikely tonight. |
| Thu, Aug 27 | 1.7 | 99% | 26% | 2 | Auroras are very unlikely tonight. |
| Fri, Aug 28 | 3.0* | 100% | 55% | 1 | Auroras are very unlikely tonight. |
| Sat, Aug 29 | 3.0* | 99% | 81% | 0 | Auroras are very unlikely tonight. |
| Sun, Aug 30 | 3.0* | 96% | 80% | 0 | Auroras are very unlikely tonight. |
| Mon, Aug 31 | 3.0* | 91% | 63% | 1 | Auroras are very unlikely tonight. |
| Tue, Sep 01 | 3.0* | 84% | 71% | 1 | Auroras are very unlikely tonight. |
| Wed, Sep 02 | 3.0* | 75% | 55% | 1 | Auroras are very unlikely tonight. |
| Thu, Sep 03 | 3.0* | 65% | 20% | 3 | Auroras are very unlikely tonight. |
| Fri, Sep 04 | 3.0* | 55% | 73% | 1 | Auroras are very unlikely tonight. |
| Sat, Sep 05 | 3.0* | 44% | 63% | 1 | Auroras are very unlikely tonight. |
| Sun, Sep 06 | 3.0* | 34% | 64% | 1 | Auroras are very unlikely tonight. |
- Mon, Aug 240Max Kp: 1.7Moon: 82%Clouds: 100%Auroras are very unlikely tonight.
- Tue, Aug 250Max Kp: 1.7Moon: 90%Clouds: 87%Auroras are very unlikely tonight.
- Wed, Aug 261Max Kp: 1.7Moon: 95%Clouds: 38%Auroras are very unlikely tonight.
- Thu, Aug 272Max Kp: 1.7Moon: 99%Clouds: 26%Auroras are very unlikely tonight.
- Fri, Aug 281Max Kp: 3.0*Moon: 100%Clouds: 55%Auroras are very unlikely tonight.
- Sat, Aug 290Max Kp: 3.0*Moon: 99%Clouds: 81%Auroras are very unlikely tonight.
- Sun, Aug 300Max Kp: 3.0*Moon: 96%Clouds: 80%Auroras are very unlikely tonight.
- Mon, Aug 311Max Kp: 3.0*Moon: 91%Clouds: 63%Auroras are very unlikely tonight.
- Tue, Sep 011Max Kp: 3.0*Moon: 84%Clouds: 71%Auroras are very unlikely tonight.
- Wed, Sep 021Max Kp: 3.0*Moon: 75%Clouds: 55%Auroras are very unlikely tonight.
- Thu, Sep 033Max Kp: 3.0*Moon: 65%Clouds: 20%Auroras are very unlikely tonight.
- Fri, Sep 041Max Kp: 3.0*Moon: 55%Clouds: 73%Auroras are very unlikely tonight.
- Sat, Sep 051Max Kp: 3.0*Moon: 44%Clouds: 63%Auroras are very unlikely tonight.
- Sun, Sep 061Max Kp: 3.0*Moon: 34%Clouds: 64%Auroras are very unlikely tonight.
* Days marked with an asterisk do not have a direct NOAA forecast yet. If we have observations from 27 days ago, we use Bartels recurrence (the Sun rotates roughly every 27 days, so active regions often return with the same period). When no history is available, we substitute a baseline value typical for the current solar cycle 25 peak (Kp 3.0). Accuracy is lower than the direct three-day forecast.
How the score works
The composite score combines three signals: how strong the storm needs to be at your geomagnetic latitude, how bright the moon will be (a full moon hides faint auroras), and how cloudy the sky will be that night. A score of 70 or higher is excellent, 45 to 70 is good, below 20 means you probably will not see anything.
Magnetic storms in Sosnovyy Bor over the last 30 days
Geomagnetic storms of class G1 and above recorded over the past month. Times are shown in the city's local timezone (GMT+3).
In Sosnovyy Bor (geomagnetic latitude 56.8°), auroras are possible from Kp ≥ 6.
| Date | Peak | Max Kp | Level | Duration | Aurora visible |
|---|---|---|---|---|---|
| 06:00 | 5.0 | G1 | 3 h | No | |
| 21:00 | 5.3 | G1 | 3 h | Yes | |
| 06:00 | 5.0 | G1 | 3 h | No |
Nearby cities
About magnetic storms in Sosnovyy Bor
Magnetic storm in Sosnovyy Bor today: planetary Kp = 0.0 (quiet). Over the last 7 days the maximum Kp above Sosnovyy Bor reached 5.3 (G1); storm days (G1+) this week: 2.
Sosnovyy Bor sits at geomagnetic latitude 56.8°. The nearest magnetic observatory continuously recording the field is Saint Petersburg (Voeikovo), 90 km away. Population 68,563.
Sosnovyy Bor lies in the sub-auroral zone (56.8°), where storms are felt several times per year. At G3 and stronger, weather-sensitive residents may experience blood-pressure changes, headaches and sleep issues; pensioners and people with hypertension should watch the forecast. During a storm, drink more water, avoid alcohol and strong coffee, and reduce intense physical exertion.
Technical consequences for Sosnovyy Bor (sub-auroral zone, 56.8°) appear from G4 upward: GPS and HF radio may degrade, precise positioning can drift, and northern power grids in the region carry a measurable GIC risk during the strongest events. Drivers on long routes should track the forecast for the next 24 to 72 hours. Source: NOAA Space Weather Prediction Center, updated every 10 minutes.
Over Sosnovyy Bor during the last 24 hours. Kp reached a maximum of 2.3 around 03:00 local time and dipped to 0.7. The planetary trend over the past 6 hours is steady — no sharp changes near Sosnovyy Bor right now. So far this month the planet has logged 2 days with a G1 or stronger geomagnetic storm.
Aurora visibility threshold for Sosnovyy Bor. At a geomagnetic latitude of 56.8°, the minimum Kp giving a realistic chance of visible auroras above Sosnovyy Bor is about Kp ≥ 5. 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 Sosnovyy Bor right now. Temperature +13.7°C, atmospheric pressure 750.8 mm Hg (1001 hPa), cloud cover 100%, humidity 91%, wind 19.8 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 Sosnovyy Bor page shows both indicators side by side. Weather data from Open-Meteo (CC BY).
Aurora viewing window for Sosnovyy Bor tonight. Sunset is at 20:31 local time, sunrise tomorrow at 05:40. Moon phase — waxing gibbous with 85% 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..