:Product: Geomagnetic Forecast :Issued: 2026 Jun 06 2205 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # NOAA Ap Index Forecast Observed Ap 05 Jun 036 Estimated Ap 06 Jun 020 Predicted Ap 07 Jun-09 Jun 010-052-038 NOAA Geomagnetic Activity Probabilities 07 Jun-09 Jun Active 25/04/10 Minor storm 05/15/20 Moderate storm 01/30/40 Strong-Extreme storm 01/51/25 NOAA Kp index forecast 07 Jun - 09 Jun Jun 07 Jun 08 Jun 09 00-03UT 3.00 2.33 6.33 03-06UT 2.67 2.00 5.33 06-09UT 2.67 3.00 5.00 09-12UT 2.00 4.33 4.33 12-15UT 2.00 5.33 3.00 15-18UT 2.00 5.67 3.33 18-21UT 2.33 7.00 3.33 21-00UT 2.33 6.33 3.67