BGS Space Weather

Daily 24-hr forecasts of global geomagnetic activity from @BritGeoSurvey (Mon-Fri only). More info on our forecast levels at

[BGS Space Weather @BGSspaceWeather]

For more detailed information
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See our full 3-day forecast here: https://t.co/T9VePxoUam
Track current geomagnetic activity levels here:
https://t.co/GbpdkP9Nss

[BGS Space Weather @BGSspaceWeather]

Next 72hrs - ACTIVE- STORM. CME arrivals this morning have elevated solar winds with limited geomagnetic impacts due to positive Bz. Residual effects, coronal hole influence and a possible glance from another CME may enhance conditions later today.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - STORM. Three CMEs erupted from the Sun yesterday with the first 2 likely to arrive later today. This will likely lead to significant geomagnetic activity to major STORM levels.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. Solar wind speeds are at near background levels and there are no Earth directed CMEs expected.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. Coronal hole influence is on a declining trend, however there still is a chance of some minor enhancements.

[BGS Space Weather @BGSspaceWeather]

Next 72hrs - QUIET overall with some ACTIVE periods possible throughout the weekend due to ongoing Coronal Hole influence. Maybe a weak CME glance too but that is uncertain and in any event is unlikely to have any significant impact on geomagnetic activity.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET overall although some ACTIVE periods are possible due to the influence of a Coronal Hole High Speed Stream.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET overall with a chance of some occasional ACTIVE periods due to the influence of a Coronal Hole High Speed Stream.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET initially today but influence from the High Speed Stream associated with a small Coronal Hole may increase tomorrow and could potentially bring some ACTIVE periods as the week progresses.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. Solar wind speed remains low, although it has increased slightly overnight but geomagnetic activity has remained muted, and QUIET conditions are expected to prevail over the next day or two.

[BGS Space Weather @BGSspaceWeather]

Next 72hrs - QUIET. Solar wind remains at ambient levels, with no major enhancements expected over the weekend. Although chances of brief ACTIVE periods are possible due to the effects of a small coronal hole.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. Solar wind is back down near ambient conditions and no further disturbances are expected in the coming days. Geomagnetic activity is expected to stay largely QUIET in response.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs-QUIET. Solar wind parameters are continuing to head towards background levels. There's a very slight chance of a CME arrival today, which could lead to some ACTIVE or maybe brief STORM conditions, but geomagnetic conditions are expected to stay mostly QUIET.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs-QUIET. A CME arrived this morning and has already caused some ACTIVE conditions, and another CME may arrive later today. This is likely to mean we'll get some more ACTIVE conditions with a chance for some STORM periods.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs-QUIET. Effects of the high speed stream are waning so we're not expecting much geomagnetic activity - maybe a chance for some ACTIVE periods. There's a very slight chance of a glancing blow from a CME, which could briefly push activity up to STORM levels if it arrives

[BGS Space Weather @BGSspaceWeather]

Next 72hrs - ACTIVE. We're anticipating the arrival of a high-speed solar wind stream in the next few hours. The fast solar wind is expected to influence the Earth's magnetic field though Friday and the weekend giving ACTIVE to STORM periods.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - ACTIVE. The CME arrived yesterday - the geomagnetic effects were minimal.
A high-speed solar wind stream from a large coronal hole is expected to arrive in the next 24hrs. Activity should be QUIET initially, rising to ACTIVE/STORM levels with onset of the fast wind.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. The anticipated coronal mass ejection is yet to make an impact but there remains a chance of ACTIVE periods during the first forecast period.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. There was a coronal mass ejection, associated with a M5.7 flare, launched on the 10th May. This is mostly directed to the east of Earth but there is a chance of a glancing blow which could result in ACTIVE/STORM periods depending on the potential impact.

[BGS Space Weather @BGSspaceWeather]

Next 24hrs - QUIET. Solar wind speed has returned to background levels following the coronal hole influence over the weekend.

[BGS Space Weather @BGSspaceWeather]

Next 72hrs - QUIET with chances of STORM periods. Due to the ongoing coronal hole influence and possible CME glancing impacts, overall QUIET geomagnetic conditions could reach elevated levels over the weekend.