Official Space Weather Advisory issued by NOAA Space Weather Prediction Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #26-18
2026 May 3 at 7:43 p.m. MDT (2026 May 4 0143 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For April 27-May 3
R1 (Minor) Radio Blackouts were observed on 27-28 Apr due to activity from Regions 4420 and 4425.
G1 (Minor) Geomagnetic Storm levels were observed on 30 Apr due to coronal hole influence.
No other space weather storms were observed during the summary period.
Outlook For May 4-10
No space weather storms are expected during the outlook period.
Data used to provide space weather services are contributed by NOAA,
USAF, NASA, NSF, USGS, the International Space Environment Services
and other observatories, universities, and institutions. More
information is available at SWPC's Web site http://swpc.noaa.gov
