:Product: 3-day Space Weather Predictions daypre.txt :Issued: 2026 Mar 18 2200 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # http://www.swpc.noaa.gov/wwire.html # # 3-day Space Weather Predictions # :Prediction_dates: 2026 Mar 19 2026 Mar 20 2026 Mar 21 :Geomagnetic_A_indices: A_Fredericksburg 18 28 32 A_Planetary 28 44 50 # # Predicted 3-hour Middle latitude k-indices :Pred_Mid_k: Mid/00-03UT 2 5 4 Mid/03-06UT 2 5 5 Mid/06-09UT 2 4 5 Mid/09-12UT 3 4 4 Mid/12-15UT 3 4 4 Mid/15-18UT 3 3 4 Mid/18-21UT 4 3 4 Mid/21-00UT 5 3 4 # # Predicted 3-hour High latitude k-indices :Pred_High_k: High/00-03UT 1 5 3 High/03-06UT 2 5 5 High/06-09UT 3 5 6 High/09-12UT 5 6 6 High/12-15UT 5 6 6 High/15-18UT 5 5 6 High/18-21UT 5 3 4 High/21-00UT 4 2 3 # # Probability of Geomagnetic conditions at Middle Latitude :Prob_Mid: Mid/Active 25 25 25 Mid/Minor_Storm 30 35 35 Mid/Major-Severe_Storm 25 30 35 # # Probability of Geomagnetic conditions at High Latitudes :Prob_High: High/Active 5 5 5 High/Minor_Storm 20 15 15 High/Major-Severe_Storm 75 75 85 # # Polar Cap Absorption Forecast :Polar_cap: green # # Solar :10cm_flux: 115 115 110 # :Whole_Disk_Flare_Prob: Class_M 35 35 35 Class_X 10 10 10 Proton 10 10 10 # # Region Flare Probabilities for 2026 Mar 19 # Region Class C M X P :Reg_Prob: 2026 Mar 18 4391 5 1 1 1 4392 55 15 5 5 4393 15 1 1 1 4395 10 1 1 1 4397 10 1 1 1