Viewing archive of Sunday, 30 October 2022

Solar activity report

Report of Solar-Geophysical Activity 2022 Oct 30 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 303 Issued at 2200Z on 30 Oct 2022

IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1 event observed at 30/1451Z from Region 3130 (S24W84). There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low on days one, two, and three (31 Oct, 01 Nov, 02 Nov).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 585 km/s at 30/0345Z. Total IMF reached 5 nT at 30/0013Z. The maximum southward component of Bz reached -5 nT at 29/2213Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3715 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on days one, two, and three (31 Oct, 01 Nov, 02 Nov).
III. Event Probabilities 31 Oct to 02 Nov
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       30 Oct 131
  Predicted   31 Oct-02 Nov 130/130/130
  90 Day Mean        30 Oct 129

V. Geomagnetic A Indices
  Observed Afr/Ap 29 Oct  094/024
  Estimated     Afr/Ap 30 Oct  009/012
  Predicted    Afr/Ap 31 Oct-02 Nov  013/015-015/018-011/012

VI. Geomagnetic Activity Probabilities 31 Oct to 02 Nov
A. Middle Latitudes
Active30%35%20%
Minor storm15%15%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm25%30%25%
Major-severe storm50%50%30%

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

Gillam, MB, Yellowknife, NT
A transequatorial coronal hole was detected in an earth-facing position on Monday, 24 March 2025

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Monday, 24 March 2025
Coronal hole faces Earth

The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity. 

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13:55 UTC - Coronal hole

A transequatorial coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days

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02:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 02:33 UTC

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