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Solar activity report
Report of Solar-Geophysical Activity 2026 Mar 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 89 Issued at 2200Z on 30 Mar 2026IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity has been at high levels for the past 24 hours.
There are currently 9 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(31 Mar, 01 Apr, 02 Apr).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 526 km/s at 30/0621Z. Total IMF reached 12
nT at 29/2324Z. The maximum southward component of Bz reached -7 nT at
30/0422Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1347 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to major storm levels on day one (31 Mar), quiet to minor
storm levels on day two (01 Apr) and quiet to unsettled levels on day
three (02 Apr). Protons have a chance of crossing threshold on days one
and two (31 Mar, 01 Apr) and have a chance of crossing threshold on day
three (02 Apr).
III. Event Probabilities 31 Mar to 02 Apr
| Class M | 55% | 55% | 55% |
| Class X | 10% | 10% | 10% |
| Proton | 50% | 50% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Mar 152 Predicted 31 Mar-02 Apr 152/155/155 90 Day Mean 30 Mar 139
V. Geomagnetic A Indices
Observed Afr/Ap 29 Mar 011/014 Estimated Afr/Ap 30 Mar 014/017 Predicted Afr/Ap 31 Mar-02 Apr 020/035-019/024-008/008
VI. Geomagnetic Activity Probabilities 31 Mar to 02 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 15% |
| Minor storm | 30% | 25% | 05% |
| Major-severe storm | 20% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 20% |
| Minor storm | 20% | 25% | 30% |
| Major-severe storm | 75% | 60% | 25% |
All times in UTC
Latest news
Monday, 30 March 2026
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Tuesday, 17 March 2026
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 86.6 +8.4 |
| Last 30 days | 86.6 +13 |
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