[ips-dhfpr-euro] ASWFC Daily European HF Report 20 07 23 issued 0650 UT on 21 Jul 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY EUROPEAN HF PROPAGATION REPORT
ISSUED AT 21/0630Z JUL 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 20 07 23
Flares: none.
A possible weak shock was observed in the solar wind at 1608UT on 20
Jul.
A weak (11nT) impulse was observed in the SWS magnetometer data at
1646UT on 20 Jul.
PCA Event : Began at 0105UT 18/07, Ended at 0335UT 20/07
 

Observed T index:   148

Observed European Region MUFS:
Near predicted monthly values during local day. Enhanced by 20%
during local night. Enhanced by 30% after local dawn.

2. FORECAST FOR 21 07 2023

Forecast T index:  125
Forecast European Region MUFS:
Initially today: Enhanced by 25%.
Rest of day: becoming depressed 15% at times later in UT day

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

Average European T index over last 7 days:   119
ASWFC monthly forcast T index for JUL 2023:  91



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