:Product: Weekly Highlights and Forecasts
:Issued: 2026 Mar 02 0144 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 23 February - 01 March 2026
Solar activity was reached moderate after an M2.3 flare at 25/1154 UTC from Region 4379 (S17, L=205, class/area=Bxo/050 on 26 Feb). A Type II radio sweep was also observed on 25 Feb, associated with a 5-degree filament eruption near S08W27 and a C2.6 flare at 25/0656 UTC. Modeling of the ejecta from the event suggested possible glancing influence at Earth on 28 Feb - 01 Mar. For the remainder of the week, activity was observed between low and very low levels.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was primarily at high levels through the past seven days.
Geomagnetic field activity was reached G1 (Minor) geomagnetic storm levels on 23 Feb during the onset of a negative polarity CH HSS. Solar wind speeds increased from ~450 km/s to ~700 km/s. Total
magnetic field strength peaked around 7 nT, then fell to at or below 5 nT for the remainder of the outlook period. Active conditions were observed over 24-26 Feb and finally to unsettled levels over 27 Feb - 01 Mar as solar wind speeds from the coronal hole gradually waned.
Forecast of Solar and Geomagnetic Activity 02 March - 28 March 2026
Solar activity is expected to be at low levels, with a change for M-class (R1-R2/Minor-Moderate) flares throughout the outlook period. Elevated probabilities are related to the flare potential of both
currently observed spot groups on the visible disk as well as the potential from regions that are expected to return from the Sun's farside.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 02-08 Mar, 11-12 Mar, 15-19 Mar, and 21-28 Mar due to anticipated influence from multiple, recurrent,
CH HSSs. The remainder of the outlook period is likely to be at
normal to moderate levels.
Geomagnetic field activity is expected to range from quiet to G2 (Moderate) geomagnetic storm levels. G2 conditions are likely on 21 Mar; G1 (Minor) conditions are likely on 22 Mar; active conditions
are likely on 03 Mar, 10 Mar, 12 Mar, 14-15 Mar, 20 Mar, and 23-25 Mar; unsettled conditions are likely on 02 Mar, 04 Mar, 06 Mar, 08-09 Mar, 11 Mar, 13 Mar, 16-19 Mar, and 26-28 Mar. All elevated
levels of geomagnetic activity are associated with the anticipated influence of multiple, recurrent, CH HSSs. The remainder of the outlook period is likely to be at mostly quiet levels.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2026 Mar 02 0144 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2026-03-02
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2026 Mar 02 150 10 3
2026 Mar 03 150 12 4
2026 Mar 04 150 8 3
2026 Mar 05 155 5 2
2026 Mar 06 158 8 3
2026 Mar 07 156 5 2
2026 Mar 08 156 8 3
2026 Mar 09 150 10 3
2026 Mar 10 145 18 4
2026 Mar 11 140 10 3
2026 Mar 12 135 15 4
2026 Mar 13 128 10 3
2026 Mar 14 125 15 4
2026 Mar 15 120 15 4
2026 Mar 16 118 10 3
2026 Mar 17 115 10 3
2026 Mar 18 120 10 3
2026 Mar 19 120 12 3
2026 Mar 20 120 15 4
2026 Mar 21 122 35 6
2026 Mar 22 122 24 5
2026 Mar 23 125 15 4
2026 Mar 24 128 15 4
2026 Mar 25 128 18 4
2026 Mar 26 130 10 3
2026 Mar 27 135 8 3
2026 Mar 28 140 8 3
(NOAA)
