HF Systems
FORECAST SOL: Moderate yellow MAG: Normal green ION: Normal green
HomeHF SystemsGlobal HFHF ConditionsGlobal Propagation Thursday, May 21 2026 01:11 UT
Global HF

Global Propagation

Global Propagation Now

Updates: Every 60 minutes

(last updated 21 May 2026 01:10 UT)

HF Conditions For 21 05 26 0100UT Latitude Band Low mid high Normal Normal Normal

Global Propagation Summary

Updates: Every 24 hours

(last updated 20 May 2026 23:30 UT)

Latitude Band Date Low Middle High 20 May Normal Normal-fair Normal-fair PCA Event : No event.

Global Propagation Forecast

Updates: Every 24 hours

(last updated 20 May 2026 23:30 UT)

Latitude Band Date Low Middle High 21 May Normal Normal Normal 22 May Normal Normal Normal 23 May Normal Normal Normal COMMENT: Global ionospheric conditions were normal to fair over UT day 20-May, with degradations mostly observed in the northern hemisphere. Mostly normal HF propagation conditions are expected over 21-23 May.

Geomagnetic Latitude Ranges:

  • Low: 0-20 degrees
  • Middle: 20-60 degrees
  • High: 60-90 degrees
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