Magnetic storms in Arizona
Magnetic storms in Arizona, United States. Current Kp index, 3-day storm forecast, list of cities and geomagnetic activity.
Cities in region8/8
An aurora visible over Arizona requires Kp ≥ 8 — current activity is below that level.
Numbers for Arizona
Aurora forecast over Arizona
Cities of Arizona — sensitivity table
Minimum Kp shown for a realistic chance of seeing an aurora. The lower the number, the more noticeable storms are in the city.
| City | Population | Geomagnetic latitude | Kp threshold | Sensitivity |
|---|---|---|---|---|
| Phoenix | 1,650,070 | 40.4° | ≥ 8 | Low latitudes |
| Tucson | 542,629 | 39.3° | ≥ 9 | Low latitudes |
| Mesa | 471,825 | 40.4° | ≥ 8 | Low latitudes |
| Chandler | 260,828 | 40.3° | ≥ 8 | Low latitudes |
| Gilbert | 247,542 | 40.4° | ≥ 8 | Low latitudes |
| Glendale | 240,126 | 40.5° | ≥ 8 | Low latitudes |
| Scottsdale | 236,839 | 40.5° | ≥ 8 | Low latitudes |
| Maryvale | 208,189 | 40.5° | ≥ 8 | Low latitudes |
FAQ about magnetic storms in Arizona
Are auroras visible in Arizona?+
Almost never. Arizona lies at low geomagnetic latitudes (≈ 40.3°). Visible auroras are possible only during extreme events (Kp ≥ 8) that occur once in several years.
How do magnetic storms affect residents of Arizona?+
At Kp ≥ 5 weather-sensitive people may experience blood pressure swings, headaches, sleep disturbances. Effects are moderate due to low geomagnetic latitude. However, strong G3+ storms can cause noticeable discomfort even here.
What Kp is needed to see an aurora in Arizona?+
By our estimate — Kp ≥ 8 (based on the regional mean of 40.3° geomagnetic latitude). The threshold is lower in the north of the region and higher in the south. For a specific city, open its page and check the «Aurora visibility threshold» section.
Where is the best place to watch auroras in Arizona?+
Best conditions are at the northernmost city in our database (Glendale, 33.5° N). The further north, the higher the geomagnetic latitude and the more frequent the auroras. Also important: clear sky, no city light pollution, and observation around local midnight.
What is the nearest magnetic observatory?+
The nearest observatory is Paratunka (Kamchatka), at 7112 km from the centre of Arizona. It belongs to the INTERMAGNET network and records the geomagnetic field in real time.
About magnetic storms: Arizona
Magnetic storms in Arizona (United States) today: planetary Kp = 3.0 (quiet). The database holds 8 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 Arizona use the same planetary Kp, but the local impact is computed individually per coordinates.
How a magnetic storm may manifest in Arizona: 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.
Inside Arizona, geomagnetic latitude varies from 39.3° to 40.5°, with a mean of 40.3°. The northernmost city, Glendale, gets aurora visibility opportunities first when Kp climbs; the 1.2° south-to-north spread is enough to put neighbouring cities into very different storm-response groups.
The nearest magnetic observatory tracking conditions over Arizona is Paratunka (Kamchatka). Combined with the planetary Kp index from NOAA SWPC, this station gives the closest reference point for how the local magnetic field behaves during storms in this part of United States.