HF Systems
FORECAST SOL: Moderate yellow MAG: Normal green ION: Normal green
HomeHF SystemsGlobal HFHF ConditionsHF Fadeout Warning Thursday, May 01 2025 04:08 UT
Global HF

HF Fadeout Warning

/Images/HF%20Systems/Global%20HF/HF%20Conditions/ico_HFFadeoutWarning.gif

(last updated 01 May 2025 04:00 UT)

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/42 ISSUED AT 0711UT/29 APRIL 2025 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. A solar region has rotated onto the solar disk and has produced an R1 flare. Further R1 flare activity is considered possible. Fadeouts are expected to impact only the lower HF frequencies. DEGRADED HF PROPAGATION CONDITIONS EXPECTED FROM 29 APRIL 2025 TO 01 MAY 2025 IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND _____________________________________________________________ SOLAR ACTIVITY FORECAST HF COMMS FADEOUTS 29 Apr: R1 Possible 30 Apr: R1 Possible 01 May: R1 Possible

go to top of page