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16.04.2024 at 13:07:25 UTC

Type	Apr 16	Apr 17	Apr 18
Active	20%	35%	35%
Minor	5%	30%	30%
Moderate	1%	5%	5%
Strong	1%	1%	1%
Kp Index Prediction
00-03UT	4.00	2.00	4.00
03-06UT	3.00	2.00	3.67
06-09UT	4.00	2.00	4.00
09-12UT	3.00	3.00	3.00
12-15UT	3.00	3.00	1.67
15-18UT	2.00	3.00	2.00
18-21UT	2.00	4.00	2.33
21-00UT	2.00	4.00	2.00
Solar Activity
Solar activity reached moderate levels. Region 3639 (N28E43, Eai/beta-gamma) produced multiple M-class flares. The largest was an M4.0 (R1-Minor) flare at 15/1932 UTC. Development and growth was observed in Region 3639, Region 3643 (S13E55, Dai/beta), Region 3638 (S17E39, Cao/beta), Region 3637 (S13E34, Bxo/beta), and Region 3634 (N26W49, Dhi/beta). Low-level M-class (R1) activity was also observed from Region 3634. The remaining regions were either stable or in decay.
Solar Wind
Solar wind parameters became weakly enhanced after 15/1725 UTC and suggested the arrival of a CME that left the Sun on 12 Apr. Total magnetic field strength increased from 5 nT to a peak of 12 nT. The Bz component reached as far southward as -10 nT. Solar wind speeds only increased from ~330 km/s to between 375-415 km/s. Phi angle was mostly negative.
Energetic Particle
The greater than 10 MeV proton flux was at background levels. The greater than 2 MeV electron flux was at normal to moderate levels.