NOTICE: The geomagnetic forecast below is provided by the NOAA Space Weather Prediction Center (SWPC) and is based on the latest available data and modelling. When it comes to space weather, current geomagnetic conditions can change rapidly and without notice. Be sure to monitor the SolarHam website for the most up to date information.

May 26

May 27

May 28

Geomagnetic 3 Day Probabilities (%) # Probability of Geomagnetic conditions at Middle Latitude :Prob_Mid: Mid/Active 25 30 25 Mid/Minor_Storm 10 10 5 Mid/Major-Severe_Storm 1 1 1 # # Probability of Geomagnetic conditions at High Latitudes :Prob_High: High/Active 15 15 15 High/Minor_Storm 30 30 30 High/Major-Severe_Storm 40 40 30

Kp Index Breakdown May 26 May 27 May 28 00-03UT 2 3 3 03-06UT 2 4 3 06-09UT 2 4 2 09-12UT 1 3 3 12-15UT 2 3 2 15-18UT 3 2 2 18-21UT 4 2 3 21-00UT 4 3 2

Geospace Discussion (SWPC) .24 hr Summary... The geomagnetic field was quiet. .Forecast... The geomagnetic field is expected to be quiet to unsettled, with active periods likely 26-27 May due to CH HSS effects. Responses are expected to weaken on 28 May, with primarily quiet to unsettled conditions expected. Todays M1.3 flare associated CME will be fully analyzed to determine the potential for any additional, related responses to the geomagnetic field 27-28 May.

Latest Kp Index

Aurora Forecast A minor geomagnetic enhancement will be possible beginning May 26th when a coronal hole stream is expected to reach Earth. Visible aurora may be possible at higher latitudes.

Aurora Oval Forecast