Aurora Alert Realtime | Aurora Borealis Forecast

See the best Aurora borealis

Aurora Alert informs you immediately via PWA, App and SMS

Aurora Alert Realtime alerts when auroras are visible in Rovaniemi, Luosto, Pyhä and Ranua regions in Finland. This is the only aurora service which uses own sensors, making the service accuracy, informative and reliable. From this webpage you can read the latest aurora- and weather forecasts for coming night.

In case of alert, you will get alert via App, PWA and SMS.
Normally, auroras are visible from 15 to 60 minutes, when circumstances are favorable. When circumstances are in borderline, auroras may be visible only few minutes. The service gives you opportunity to see auroras although they are visible only short time. During same evening and night, auroras intensity can change from weak to strong which lights up the whole sky. The alert messages contains aurora intensity information, offering you the chance to see the best auroras.

Making reliable prediction when you can see auroras is very difficult. Solar wind which cause auroras, can travel from the sun to Earth in day or two (speed of solar wind can vary from 300 – 1000 km/s). This means that all predictions contain inaccuracy several hours, sometimes even 10 to 20 hours. Furthermore cloud situation affect to possibility to see auroras. Aurora Alert Realtime service sends alert, indicates direction and tells the intensity of auroras when they are visible.

Rovaniemi, Pyhä-, Luosto- and Ranua areas: PWA, App (free of charge). SMS available (from Onlineshop below)

What is PWA

Progressive Web Apps (PWAs) are web applications that are reliable and fast first load, no Play- or App Store needed.

Arctic Tree House Hotel, World Luxury Hotel Awards 2017 Winner and Santa’s Hotels’ glass igloos in Arctic Circle use Aurora Alert Realtime.

Arctic Light Hotel, Best Hotel in Finland 2017 Santa Claus Holiday Village, Trip Advisor Travellers’ choice 2017 recommends Aurora Alert Realtime. Catai, big spanish tour operator recommends and uses Aurora Alert Realtime for clients in Rovaniemi.

See Per Byhring’s excellent video how auroras are formed.

Read Dr. Steve Marple’s, Lancaster University, Aurora Watch UK blog.“Why Kp index is poor indicator for auroral alerts”

AURORA AND WEATHER FORECASTS

In the Aurora forecast bigger number means stronger Auroras. If there are values in parentheses, they indicate the intensity of the geomagnetic storm.

The most important thing in the weather forecast is cloud situation. If sky is clear, you can see Auroras if they appears.
If there are cloud layers, it makes a little bit more difficult to see Auroras. If it is raining or snowing, no possibilities to see Auroras.

Remember, the forecast are only forecast and the actual situation may be different.
Finally, Aurora Alert Realtime alerts, when Auroras are visible.

NOAA Kp index breakdown Nov 30-Dec 02 2021

Time in Finland
(UT+2h)			Nov 30	Dec 01	Dec 02
02-05	---------	00-03UT	1	2	1
05-08	---------	03-06UT	0	1	2
08-11	---------	06-09UT	1	2	2
11-14	---------	09-12UT	0	2	1
14-17	---------	12-15UT	1	1	2
17-20	---------	15-18UT	1	1	2
20-23	---------	18-21UT	2	1	3
23-02	---------	21-00UT	2	1	3

Source: NOAA, Space Weather Prediction Center

Geomagnetic Storms

G5 Extreme
G4 Severe
G3 Strong
G2 Moderate
G1 Minor

In October, a few good evenings to observe the northern lights

October was little different from cloudy September. A few times there was a clear sky when the Northern Lights were visible. At the end of October, there were exceptionally strong Northern Lights which were also mentioned in the press and on TV news, but were not seen due to cloudy weather.