Viewing archive of Wednesday, 31 August 2022

Solar activity report

Report of Solar-Geophysical Activity 2022 Aug 31 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 243 Issued at 2200Z on 31 Aug 2022

IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 31-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C4 event observed at 31/0750Z from Region 3089 (S22W13). There are currently 2 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (01 Sep, 02 Sep, 03 Sep).
IIA. Geophysical Activity Summary 30-2100Z to 31-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 617 km/s at 31/0253Z. Total IMF reached 13 nT at 30/2113Z. The maximum southward component of Bz reached -7 nT at 31/2044Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 172 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one and two (01 Sep, 02 Sep) and quiet to unsettled levels on day three (03 Sep).
III. Event Probabilities 01 Sep to 03 Sep
Class M25%25%25%
Class X05%05%05%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       31 Aug 113
  Predicted   01 Sep-03 Sep 110/110/115
  90 Day Mean        31 Aug 121

V. Geomagnetic A Indices
  Observed Afr/Ap 30 Aug  013/012
  Estimated     Afr/Ap 31 Aug  010/010
  Predicted    Afr/Ap 01 Sep-03 Sep  006/005-006/005-007/008

VI. Geomagnetic Activity Probabilities 01 Sep to 03 Sep
A. Middle Latitudes
Active10%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%20%15%
Minor storm15%20%15%
Major-severe storm15%10%15%

All times in UTC

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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø
Murmansk
Kiruna

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