Local 7/22/2026, 7:25:10 PM
UTC 2026-07-22T19:25:10.567Z
Space Weather Message Code: WATA20Serial Number: 1117Issue Time: 2026 Jul 22 1925 UTCWATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jul 23: None (Below G1) Jul 24: G1 (Minor) Jul 25: None (Below G1) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment:NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Spacecraft - Minor impact on satellite operations possible.Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Local 7/22/2026, 5:50:29 PM
UTC 2026-07-22T17:50:29.730Z
Space Weather Message Code: SUM10RSerial Number: 924Issue Time: 2026 Jul 22 1750 UTCSUMMARY: 10cm Radio Burst Begin Time: 2026 Jul 22 1552 UTC Maximum Time: 2026 Jul 22 1552 UTC End Time: 2026 Jul 22 1552 UTC Peak Flux: 150 sfu Duration: 1 minutes Latest Penticton Noon Flux: 149 sfu Comment:
Local 7/22/2026, 2:56:05 PM
UTC 2026-07-22T14:56:05.877Z
Space Weather Message Code: WARK04Serial Number: 5390Issue Time: 2026 Jul 22 1456 UTCWARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Jul 22 1454 UTC Valid To: 2026 Jul 22 2359 UTC Warning Conditions: Onset Comment:NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Local 7/22/2026, 6:52:19 AM
UTC 2026-07-22T06:52:19.410Z
Space Weather Message Code: SUM10RSerial Number: 923Issue Time: 2026 Jul 22 0652 UTCSUMMARY: 10cm Radio Burst Begin Time: 2026 Jul 22 0632 UTC Maximum Time: 2026 Jul 22 0633 UTC End Time: 2026 Jul 22 0634 UTC Peak Flux: 200 sfu Duration: 2 minutes Latest Penticton Noon Flux: 149 sfu Comment:
Local 7/21/2026, 5:09:41 PM
UTC 2026-07-21T17:09:41.817Z
Space Weather Message Code: WARK04Serial Number: 5389Issue Time: 2026 Jul 21 1709 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5388 Valid From: 2026 Jul 21 0910 UTC Now Valid Until: 2026 Jul 22 0600 UTC Warning Condition: PersistenceNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Local 7/21/2026, 12:01:42 PM
UTC 2026-07-21T12:01:42.537Z
Space Weather Message Code: ALTK04Serial Number: 2676Issue Time: 2026 Jul 21 1201 UTCALERT: Geomagnetic K-index of 4 Threshold Reached: 2026 Jul 21 1159 UTC Synoptic Period: 0900-1200 Active Warning: YES Comment:NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Local 7/21/2026, 9:11:04 AM
UTC 2026-07-21T09:11:04.820Z
Space Weather Message Code: WARK04Serial Number: 5388Issue Time: 2026 Jul 21 0911 UTCWARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Jul 21 0910 UTC Valid To: 2026 Jul 21 1800 UTC Warning Conditions: Onset Comment:NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.