SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 APRIL 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (13 APRIL)
Date T index Conditions
13 Apr 116 Normal
Flares Max Fadeout Freq. Sectors
M2.4 0502UT possible lower E. Asia/Aust.
MUFs:
Cocos Island Region:
Enhanced by 20% during local day.
Enhanced by 25% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 120
Apr 114
May 115
2. FORECAST (14 APRIL - 16 APRIL)
Date T index Conditions MUFs
14 Apr 120 Normal Near predicted monthly values
15 Apr 115 Normal-fair Near predicted monthly values
16 Apr 120 Normal Near predicted monthly values
COMMENT: ASWFC SWF HF Communications Warning 35 was issued on
11 April and is current for 12-14 Apr. Maximum usable frequencies
in the Australian region on UT day 13-Apr were near predicted
monthly values, with some enhancements of up to 20% observed
in the northern Australian region during local night. MUFs are
expected to be near predicted monthly values over 14-16 Apr,
with a chance of mild depressions in the southern Australian
region on 15-Apr due to anticipated geomagnetic activity. Shortwave
fadeouts are possible.
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For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au