:Product: 0429RSGA.txt :Issued: 2026 Apr 29 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 119 Issued at 2200Z on 29 Apr 2026 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 6 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 (30 Apr, 01 May, 02 May). IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 367 km/s at 28/2137Z. Total IMF reached 6 nT at 29/1732Z. The maximum southward component of Bz reached -3 nT at 29/1622Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 459 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (30 Apr), quiet to unsettled levels on day two (01 May) and quiet levels on day three (02 May). Protons have a slight chance of crossing threshold on days one, two, and three (30 Apr, 01 May, 02 May). III. Event probabilities 30 Apr-02 May Class M 65/65/65 Class X 10/10/10 Proton 10/10/10 PCAF green IV. Penticton 10.7 cm Flux Observed 29 Apr 143 Predicted 30 Apr-02 May 140/135/132 90 Day Mean 29 Apr 129 V. Geomagnetic A Indices Observed Afr/Ap 28 Apr 003/003 Estimated Afr/Ap 29 Apr 003/004 Predicted Afr/Ap 30 Apr-02 May 010/014-007/008-005/005 VI. Geomagnetic Activity Probabilities 30 Apr-02 May A. Middle Latitudes Active 30/15/15 Minor Storm 15/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/15 Major-severe storm 20/20/10