[Ips-dhfpr] SWS Daily HF Prop Report - 02 July 22 issued 2330 UT on 02 Jul 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Sun Jul 3 09:30:47 EST 2022
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 JULY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (02 JULY)
Date T index Conditions
02 Jul 78 Fair-normal
Flares: none.
MUFs:
Cocos Island Region:
Enhanced by 30% during local day.
Depressed by 15% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Initially near predicted monthly values then enhanced 15%.
Southern Australian region MUFs briefly depressed 15% after local dawn.
Hobart 20-30% depressed after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Jun 60
Jul 65
Aug 67
2. FORECAST (03 JULY - 05 JULY)
Date T index Conditions MUFs
03 Jul 50 Normal-fair Depressed 10 to 20%/near predicted
monthly values
04 Jul 65 Normal Near predicted monthly values
05 Jul 65 Normal Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 02-Jul were
initially near predicted monthly values then becoming unexpectedly
enhanced by 15-25%. Spread F was observed overnight for southern
region sites in association with unexpected geomagnetic activity.
MUFs are generally expected to be near predicted monthly values,
southern Australian regional MUFs are likely to be briefly initially
depressed 15-20% then recover. Northern Australian regional MUFs
are 15% depressed to near predicted monthly values after local
dawn. Further degraded conditions are possible for the southern
Australian region during 04-05 Jul in association with the chance
of an increase in geomagnetic activity induced from recent CMEs.
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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.
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