:Product: 3-day Space Weather Predictions daypre.txt
:Issued: 2026 Apr 17 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 Apr 18   2026 Apr 19   2026 Apr 20
:Geomagnetic_A_indices:
A_Fredericksburg         25            20            14
A_Planetary              40            25            18
#
# Predicted 3-hour Middle latitude k-indices
:Pred_Mid_k:
Mid/00-03UT               5             5             3
Mid/03-06UT               5             4             3
Mid/06-09UT               4             4             3
Mid/09-12UT               3             3             3
Mid/12-15UT               3             3             3
Mid/15-18UT               3             2             2
Mid/18-21UT               2             2             3
Mid/21-00UT               4             3             3
#
# Predicted 3-hour High latitude k-indices
:Pred_High_k:
High/00-03UT              5             4             3
High/03-06UT              5             4             3
High/06-09UT              6             5             4
High/09-12UT              6             5             5
High/12-15UT              5             5             5
High/15-18UT              4             4             2
High/18-21UT              2             2             3
High/21-00UT              3             2             2
#
# Probability of Geomagnetic conditions at Middle Latitude
:Prob_Mid:
Mid/Active               30            35            35
Mid/Minor_Storm          40            35            10
Mid/Major-Severe_Storm   25            10             1
#
# Probability of Geomagnetic conditions at High Latitudes
:Prob_High:
High/Active               5             5            15
High/Minor_Storm         15            20            30
High/Major-Severe_Storm  85            70            45
#
# Polar Cap Absorption Forecast
:Polar_cap:
                      green
#
# Solar
:10cm_flux:
                        105           105           105
#
:Whole_Disk_Flare_Prob:
Class_M                  25            25            25
Class_X                   5             5             5
Proton                    1             1             1
#
# Region Flare Probabilities for 2026 Apr 18
# Region     Class C      M             X             P
:Reg_Prob: 2026 Apr 17
  4415         10         1             1             1
  4416         25         5             1             1
  4419         70        20             5             1