• Main Site ***
• About Space Weather ***
• Products and Data ***
• Dashboards
• Geomagnetic Storms

NOAA Space Weather Overview (bar graphs)

• Solar X-ray Flux: Orders of magnitude of solar flares are represented by the letters A (lowest), B, C, M and X (highest intensity).
• The A and K indices are related, but the K index will be a more up-to-date indication.
• For the K index, lower is better, and zero is great.
• The Boulder K index is also available from radio station WWV hourly at :18 on 2.5, 5 and 10 MHz.
• You can call WWV anytime, at (303) 499-7111.

• from Dominion Astrophysical Observatory, Penticton, B.C.
• solar weather monitoring

• main page (English)
• Space Weather Forecasts
• Current Geomagnetic Activity
• Solar Flux from Penticton

• Tamitha Skov (Space Weather Woman)
• YouTube Channel

• Propagation Page All the current data you need! ***

Maximum Usable Frequency Links

• Maximum Usable Frequency Info (Wikipedia)
• Optimal Working Frequencies (MHz) for US Midwest

• The NEW Shortwave Propagation Handbook (1995) (Amazon, $33.25)
• Here to There: Radio Wave Propagation – Tools You Can Use (2023) (Amazon, $22.95)

ksuarc@ksu.edu

modified 5/12/24