NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 02, 2025 20:45:20 UTC

Main menu

NOAA Scales mini

R1 (Minor) Radio Blackout Impacts
close
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.
More about the NOAA Space Weather Scales

June 11: Planned Network Outage

June 11: Planned Network Outage
published: Wednesday, June 12, 2024 13:21 UTC

On Tuesday, June 11, between 1500 UTC and 2100 UTC, SWPC will perform a major network upgrade.

This upgrade will severely limit our operational capabilities. During portions of this period, SWPC will be unable to issue routine products, watches, warnings, and alerts. Access to products and data on the SWPC website will also be impacted, and sometimes, it will be severely limited or completely unavailable.

In the event of significant space weather activity, this maintenance will be postponed.