[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 June 23 issued 2330 UT on 26 Jun 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Tue Jun 27 09:30:14 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 JUNE 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (26 JUNE)
Date T index Conditions
26 Jun 110 Normal
Flares Max Fadeout Freq. Sectors
M1.6 1622UT possible lower South American/
Atlantic
MUFs:
Cocos Island Region:
Enhanced by 25% during local day.
Depressed by 15% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
May 98
Jun 88
Jul 87
2. FORECAST (27 JUNE - 29 JUNE)
Date T index Conditions MUFs
27 Jun 105 Normal Near to 15% above predicted
monthly values
28 Jun 105 Normal Near to 15% above predicted
monthly values
29 Jun 105 Normal Near to 15% above predicted
monthly values
COMMENT: ASWFC SWF HF Communications Warning 59 was issued on
26 June and is current for 26-28 Jun. Maximum usable frequencies
(MUFs) on UT day 26-Jun in the Australian region were generally
near predicted monthly values to 15% enhanced in Southern Australian
regions. Spread F was observed during local night hours at Hobart
and Perth. MUFs are generally expected to be near predicted values
to 15% enhanced over 27-29 Jun. Mildly degraded HF conditions
may be experienced during local night hours. 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
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