Magnetic storms in California
Kp index and storm forecast for cities of California.
Cities of the region
- Los Angeles3,820,914
- San Diego1,404,452
- San Jose997,368
- San Francisco827,526
- Fresno542,107
- Sacramento524,943
- Long Beach474,140
- Oakland419,267
- Bakersfield373,640
- Anaheim350,742
- Riverside317,261
- Santa Ana310,227
- Stockton305,658
- Chula Vista265,757
- Irvine256,927
- Fremont232,206
- San Bernardino216,108
- Fontana212,704
- Modesto211,266
- Oxnard207,254
- Moreno Valley204,198
- Huntington Beach201,899
- Glendale201,020
▸About magnetic storms: California
Magnetic storms in California (United States) today: planetary Kp = 0.0 (G0). The database holds 23 cities in the region with live geomagnetic data and forecasts.
Pick a city from the list to see detailed information: local time, geomagnetic latitude, distance to the nearest magnetic observatory, 3-day Kp chart with forecast and aurora visibility chance. All cities in California use the same planetary Kp, but the local impact is computed individually per coordinates.
How a magnetic storm may manifest in California: at Kp ≥ 5, weather-sensitive people can have headaches, blood-pressure swings, sleep disruption. At Kp ≥ 7, GPS navigation and shortwave radio may glitch. At Kp ≥ 8 — power-grid issues. Data from NOAA SWPC, updated every 10 minutes.