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National Oceanic and Atmospheric Administration

Sunday, April 13, 2025 21:54:21 UTC

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R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
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PHONE OUTAGE - Saturday, March 30

PHONE OUTAGE - Saturday, March 30
published: Sunday, March 31, 2024 14:56 UTC

Planned Telephone Outage at SWPC on Saturday, March 30

All voice services (calling, voicemail) for the entire Boulder campus will be unavailable.

When: Saturday, March 30, 2024, from 8:00 AM - 10:00 PM MT

What You Need to Know: During this time, voice services will be down or in a degraded state. All other forms of communication will remain unaffected.