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Solar activity report

Report of Solar-Geophysical Activity 2023 Jul 07 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 188 Issued at 2200Z on 07 Jul 2023

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M4 event observed at 07/0629Z from Region 3359 (S22W27). There are currently 9 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 (08 Jul, 09 Jul, 10 Jul).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field has been at unsettled to active levels for the past 24 hours. Solar wind speed reached a peak of 554 km/s at 07/0326Z. Total IMF reached 10 nT at 07/0100Z. The maximum southward component of Bz reached -9 nT at 07/0033Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 650 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to active levels on day one (08 Jul) and quiet to active levels on days two and three (09 Jul, 10 Jul).
III. Event Probabilities 08 Jul to 10 Jul
Class M35%35%35%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       07 Jul 161
  Predicted   08 Jul-10 Jul 160/160/155
  90 Day Mean        07 Jul 157

V. Geomagnetic A Indices
  Observed Afr/Ap 06 Jul  011/011
  Estimated     Afr/Ap 07 Jul  013/018
  Predicted    Afr/Ap 08 Jul-10 Jul  014/018-013/015-009/012

VI. Geomagnetic Activity Probabilities 08 Jul to 10 Jul
A. Middle Latitudes
Active30%30%25%
Minor storm10%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Active20%20%20%
Minor storm25%25%25%
Major-severe storm20%20%20%

All times in UTC

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