[ips-dhfpr-euro] ASWFC Daily European HF Report 09 05 23 issued 0650 UT on 10 May 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY EUROPEAN HF PROPAGATION REPORT
ISSUED AT 10/0630Z MAY 2023 
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
EUROPEAN REGION SUMMARY AND FORECAST
MUF SUMMARY/FORECAST INFORMATION IN THIS REPORT IS AUTOMATICALLY
GENERATED FROM REGIONAL IONOSPHERIC DATA

1. SUMMARY FOR 09 05 23
Flares    Max     Fadeout    Freq.  Sectors
  M6.5    0354UT  probable   lower  E. Asia/Aust.
  M1.2    0613UT  possible   lower  Mid East/Indian
  M1.3    1020UT  possible   lower  European
  M4.2    1858UT  possible   lower  East Pacific/
                                    North American
  M5.0    2052UT  possible   lower  East Pacific/
                                    North American
A strong shock was observed in the solar wind at 2207UT on 09 May.
A weak (10nT) impulse was observed in the SWS magnetometer data at
2248UT on 09 May.
PCA Event : 10MeV (S1) Proton/PCA Event Began 09 05 2023 2325UT and
is in progress

Observed T index:    84

Observed European Region MUFS:
Near predicted monthly values.

2. FORECAST FOR 10 05 2023

Forecast T index:   80
Forecast European Region MUFS:
Initially today: Near predicted monthly values.
Rest of day: Depressed 15-20%
COMMENT:Strongly degraded HF conditions expected due to geomagnetic
activity. The geomagnetic field was disturbed during the first 6
hours of the forecast day.

3. 7 DAY AVERAGE T INDEX AND FORECAST MONTHLY T INDEX

Average European T index over last 7 days:   111
ASWFC monthly forcast T index for MAY 2023:  87



Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au