HF Systems
FORECAST SOL: Normal green MAG: Normal green ION: Moderate yellow
HomeHF SystemsGlobal HFHF ConditionsGlobal Propagation Tuesday, Dec 12 2017 23:24 UT
Global HF

Global Propagation

Global Propagation Now

Updates: Every 60 minutes

(last updated 12 Dec 2017 23:20 UT)

HF Conditions For 12 12 17 2300UT Latitude Band Low mid high Normal Normal Fair-Normal

Global Propagation Summary

Updates: Every 24 hours

(last updated 11 Dec 2017 23:30 UT)

Latitude Band Date Low Middle High 11 Dec Normal Normal Normal-fair PCA Event : No event.

Global Propagation Forecast

Updates: Every 24 hours

(last updated 11 Dec 2017 23:30 UT)

Latitude Band Date Low Middle High 12 Dec Normal Normal Normal-fair 13 Dec Normal Normal Normal-fair 14 Dec Normal Normal Normal-fair COMMENT: Sporadic E blanketing were observed at several low and mid latitude southern hemisphere locations on 11 December. Minor to moderate MUF depressions and degradations in HF conditions in high latitude regions are possible from 12 to 14 December in response to the forecasted unsettled magnetic conditions.

Geomagnetic Latitude Ranges:

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