Viewing archive of Sunday, 5 February 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Feb 05 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 36 Issued at 2200Z on 05 Feb 2023

IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C6 event observed at 05/0326Z. There are currently 5 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (06 Feb, 07 Feb, 08 Feb).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 496 km/s at 05/0833Z. Total IMF reached 9 nT at 05/1936Z. The maximum southward component of Bz reached -7 nT at 05/1627Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 139 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on day one (06 Feb) and quiet to active levels on days two and three (07 Feb, 08 Feb).
III. Event Probabilities 06 Feb to 08 Feb
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       05 Feb 144
  Predicted   06 Feb-08 Feb 150/160/155
  90 Day Mean        05 Feb 153

V. Geomagnetic A Indices
  Observed Afr/Ap 04 Feb  005/004
  Estimated     Afr/Ap 05 Feb  005/005
  Predicted    Afr/Ap 06 Feb-08 Feb  008/010-013/015-012/015

VI. Geomagnetic Activity Probabilities 06 Feb to 08 Feb
A. Middle Latitudes
Active20%30%30%
Minor storm05%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Active15%10%10%
Minor storm25%25%25%
Major-severe storm25%40%40%

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, Whitehorse, YT, Yellowknife, NT
Fairbanks, AK, Juneau, AK

Type II Radio Emission

Begin time: Tuesday, 8 April 2025 05:53 UTC
Velocity: 456km/sec
A southern hemisphere coronal hole was detected in an earth-facing position on Tuesday, 8 April 2025

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