MISO has declared a Geomagnetic Disturbance Warning effective starting 04/16/2025 08:30 EST until 04/16/2025 12:00 EST.
Affected Region(s): North, Central, and South
Geomagnetic Disturbance Warning Declared due to: Geomagnetic K-index of: 7
Instructions: • Review SO-P-NOP-00-449 Conservative System Operations Procedure for expected actions. • Report occurrences of abnormal conditions to the MISO RC that may be caused by this Geomagnetic Disturbance (GMD). • The National Oceanic and Atmospheric Administration (NOAA) provides additional information via their Electric Power Community Dashboard that is used monitor and track GMD Activity. • Review SO-P-AOP-00-01 Geomagnetic Disturbance Operations Plan, if necessary. • Perform all actions as outlined in internal GMD Operating Procedure or Operating Plan. • MISO will continue to monitor system conditions and issue additional GMD update as necessary.