Viewing archive of Thursday, 5 March 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Mar 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 64 Issued at 2200Z on 05 Mar 2026IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 5 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (06
Mar, 07 Mar, 08 Mar).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 456 km/s at 04/2107Z. Total IMF reached 5 nT at
05/0359Z. The maximum southward component of Bz reached -3 nT at
05/0703Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 581 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (06 Mar) and quiet to
active levels on days two and three (07 Mar, 08 Mar).
III. Event Probabilities 06 Mar to 08 Mar
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Mar 146 Predicted 06 Mar-08 Mar 145/140/135 90 Day Mean 05 Mar 145
V. Geomagnetic A Indices
Observed Afr/Ap 04 Mar 006/007 Estimated Afr/Ap 05 Mar 005/005 Predicted Afr/Ap 06 Mar-08 Mar 016/022-013/016-011/012
VI. Geomagnetic Activity Probabilities 06 Mar to 08 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 45% | 30% | 30% |
| Minor storm | 25% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 35% | 35% |
| Major-severe storm | 60% | 40% | 35% |
All times in UTC
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Latest forum messages
AR4436 229Current Farside Activity 614Unspecified geomagnetic activity 284Incoming & Unnumbered Active Regions 440Forum messages 18
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/29 | M1.1 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 99.1 +19.8 |
| Last 30 days | 99.1 +7.5 |
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