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Understanding UV Index Forecasts During Winter Storms

June 18, 2026 · The Clime Team
Understanding UV Index Forecasts During Winter Storms

During winter storms, the UV index can still pose risks, especially when snow or ice reflects sunlight, increasing exposure. It's essential to monitor UV levels and take appropriate precautions to protect your skin and eyes.

What Is the UV Index?

The UV index measures the strength of ultraviolet (UV) radiation from the sun, indicating potential harm to the skin and eyes. It ranges from 0 (low) to 11+ (extreme), with higher values signifying greater risk. Even on cloudy or snowy days, UV radiation can be significant. (weather.gov)

How Do Winter Storms Affect the UV Index?

Winter storms often bring cloud cover, which can reduce UV radiation reaching the ground. However, snow and ice can reflect UV rays, leading to increased exposure. For instance, snow can nearly double UV strength, making it crucial to take protective measures even during overcast conditions. (weather.gov)

Protective Measures During Winter Storms

  • Wear Protective Clothing: Opt for hats, sunglasses, and long-sleeved shirts to shield your skin and eyes.

  • Apply Sunscreen: Use a broad-spectrum sunscreen with at least SPF 15 on exposed skin, even when it's cloudy or snowing.

  • Seek Shade: Whenever possible, stay in shaded areas to minimize direct UV exposure.

Monitoring UV Index Forecasts

Staying informed about the UV index is vital for skin health. The National Weather Service provides UV index forecasts for various locations, helping you plan outdoor activities safely. (weather.gov)

Conclusion

Even during winter storms, UV radiation can be harmful due to factors like snow and ice reflecting sunlight. By understanding the UV index and taking appropriate precautions, you can protect yourself from potential skin and eye damage.

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