:Product: Geomagnetic Forecast
:Issued: 2021 Sep 17 2205 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
NOAA Ap Index Forecast
Observed Ap 16 Sep 003
Estimated Ap 17 Sep 020
Predicted Ap 18 Sep-20 Sep 018-010-005

NOAA Geomagnetic Activity Probabilities 18 Sep-20 Sep
Active                35/30/15
Minor storm           35/25/01
Moderate storm        15/01/01
Strong-Extreme storm  01/01/01

NOAA Kp index forecast 18 Sep - 20 Sep
             Sep 18    Sep 19    Sep 20
00-03UT        4         3         2
03-06UT        5         3         1
06-09UT        4         3         1
09-12UT        3         2         1
12-15UT        3         2         1
15-18UT        2         1         1
18-21UT        3         1         2
21-00UT        3         2         2