[ips-dhfpr-euro] ASWFC Daily European HF Report 17 12 23 issued 0650 UT on 18 Dec 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY EUROPEAN HF PROPAGATION REPORT
ISSUED AT 18/0630Z DEC 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 17 12 23
Flares    Max     Fadeout    Freq.  Sectors
  M1.1    2017UT  possible   lower  East Pacific/
                                    North American

A weak (28nT) impulse was observed in the SWS magnetometer data at
0737UT on 17 Dec.
PCA Event : Began at 2335UT 15/12, Ended at 0045UT 16/12
 

Observed T index:    98

Observed European Region MUFS:
Near predicted monthly values.

2. FORECAST FOR 18 12 2023

Forecast T index:   80
Forecast European Region MUFS:
Initially today: Near predicted monthly values.
Rest of day: Near predicted monthly values
COMMENT: MUF depressions may be experienced following yesterdays
geomagnetic activity.

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

Average European T index over last 7 days:    73
ASWFC monthly forcast T index for DEC 2023: 100

A weak (11nT) impulse was observed in the SWS magnetometer data at
0216UT on 18 Dec, and a weak (19nT) impulse was observed at 0402UT on
18 Dec, and a weak (23nT) impulse was observed at 0540UT on 18 Dec.

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