Jupiter's Great Red Spot, an anticyclonic storm that has been observed continuously since at least the 1830s (and possibly since the 1600s), currently measures roughly 16,000 km across — still larger than Earth's diameter, though it has been steadily shrinking for over a century from an estimated 40,000 km in the late 1800s. It remains the largest and longest-lived storm system known anywhere in the solar system.
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Jupiter's Great Red Spot, an anticyclonic storm that has been observed continuously since at least the 1830s (and possibly since the 1600s), currently measures roughly 16,000 km across — still larger than Earth's diameter, though it has been steadily shrinking for over a century from an estimated 40,000 km in the late 1800s. It remains the largest and longest-lived storm system known anywhere in the solar system.
The greatest diameter of any long-lived atmospheric storm system observed in the solar system.
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Limits Registry. LR-LARGEST-STORM-SOLAR-SYSTEM. Largest storm in the solar system. 2026.