Global Propagation
Global Propagation Now
Updates: Every 60 minutes
(last updated 22 May 2025 04:10 UT)
HF Conditions For 22 05 25 0400UT Latitude Band Low mid high Normal Normal Normal
Global Propagation Summary
Updates: Every 24 hours(last updated 21 May 2025 23:31 UT)
Latitude Band Date Low Middle High 21 May Normal-fair Normal-fair Normal-fair PCA Event : No event.
Global Propagation Forecast
Updates: Every 24 hours(last updated 21 May 2025 23:31 UT)
Latitude Band Date Low Middle High 22 May Normal Normal Normal-fair 23 May Normal Normal Normal-fair 24 May Normal Normal Normal-fair COMMENT: HF radio propagation conditions on UT day 21-May were mostly normal to fair with poorer conditions in the northern hemisphere. HF radio propagation conditions are expected to be normal to fair over 22-24 May with conditions slowly improving over the period, due to ongoing coronal hole effects. Shortwave fadeouts are possible.
Geomagnetic Latitude Ranges:
- Low: 0-20 degrees
- Middle: 20-60 degrees
- High: 60-90 degrees
