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Viewing archive of Sunday, 8 July 2018

Solar activity report

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Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2018 Jul 08 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 189 Issued at 2200Z on 08 Jul 2018

IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z

Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (09 Jul, 10 Jul, 11 Jul).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 498 km/s at 08/1210Z. Total IMF reached 5 nT at 07/2143Z. The maximum southward component of Bz reached -2 nT at 08/0351Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 348 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (09 Jul), quiet to unsettled levels on day two (10 Jul) and quiet levels on day three (11 Jul).
III. Event Probabilities 09 Jul to 11 Jul
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       08 Jul 072
  Predicted   09 Jul-11 Jul 072/072/074
  90 Day Mean        08 Jul 071
V. Geomagnetic A Indices
  Observed Afr/Ap 07 Jul  006/007
  Estimated     Afr/Ap 08 Jul  005/005
  Predicted    Afr/Ap 09 Jul-11 Jul  010/012-007/008-006/005
VI. Geomagnetic Activity Probabilities 09 Jul to 11 Jul
A. Middle Latitudes
Active30%15%15%
Minor storm05%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm30%25%20%
Major-severe storm35%20%20%

All times in UTC

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

Gillam, MB, Yellowknife, NT

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

Edmonton, AB, Iqaluit, NU, Saskatoon, SK, Whitehorse, YT
Anchorage, 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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