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.

Dec. 8

Dec. 9

Dec. 10

Geomagnetic 3 Day Probabilities (%) # Probability of Geomagnetic conditions at Middle Latitude :Prob_Mid: Mid/Active 40 20 15 Mid/Minor_Storm 25 5 1 Mid/Major-Severe_Storm 5 1 1 # # Probability of Geomagnetic conditions at High Latitudes :Prob_High: High/Active 5 15 15 High/Minor_Storm 20 25 25 High/Major-Severe_Storm 65 30 20

Kp Index Breakdown Dec 08 Dec 09 Dec 10 00-03UT 4.33 3.33 3.00 03-06UT 4.67 (G1) 3.00 3.00 06-09UT 3.67 2.67 1.33 09-12UT 3.00 2.00 1.33 12-15UT 3.00 1.67 1.33 15-18UT 2.67 2.00 1.33 18-21UT 2.33 2.00 1.67 21-00UT 3.00 2.33 1.33

Geospace Discussion (SWPC) .24 hr Summary... The geomagnetic field reached G1 (Minor) storm levels with the early arrival of a CIR and CH HSS (negative polarity). .Forecast... Isolated periods of G1 (Minor) storm levels are likely to be observed on 08 Dec with HSS conditions underway. Mostly unsettled to active levels are expected 09 Dec as the solar wind environment begins to recover. Quiet to unsettled conditions are forecast on 10 Dec with a gradual return to background conditions.

Latest Kp Index

Aurora Forecast Aurora will be likely at higher latitudes during the next 24 hours due to coronal hole stream effects.

Aurora Oval Forecast