Sunday, 18-Jul-2021 01:18:20 GMT

Current Solar Image from SOHO	Current Solar Flux report: SFI: 77 A-index: 4 K-Index: 1 Report last updated: 00:06utc 18 Jul 21 Current Sunspot Count: 35	Highs for Cycle 25 Flux: 95 - 2 Jul 2021 Sunspots: 81 - 3 Jul 2021
	Summary for the past 24 hours: No space weather storms were observed for the past 24 hours.
	Forecast for the next 24 hours: No space weather storms are predicted for the next 24 hours.

This chart is based on daily sunspot and solar flux numbers reported by NOAA. It is updated once per day.
The data in this chart reflects the past six months.

This chart is based on the NOAA Geophysical Alert Message (updated every three hours). Included are the Solar Flux, K-Index, and A-Index numbers for the past six months. This chart is updated every three hours (at 15 minutes past the hour), along with the text report at the top of this page.

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Thursday, July 22, 2021 17:28:00

NOAA Scales

Space Weather Conditions

on NOAA Scales

24-Hour Observed Maximums

no data

Latest Observed

no data

R1-R2	--
R3-R5	--

S1 or greater	--

no data

R1-R2	--
R3-R5	--

S1 or greater	--

no data

R1-R2	--
R3-R5	--

S1 or greater	--

no data

Current Space Weather Conditions

on NOAA Scales

R1 (Minor) Radio Blackout Impacts

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