- Press Release
- August 18, 2022
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 1 July 2019
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 182 Issued at 2200Z on 01 Jul 2019
IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 01/2100Z: 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 on days one, two, and three (02 Jul, 03 Jul, 04 Jul).
IIA. Geophysical Activity Summary 30/2100Z to 01/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 446 km/s at 01/0214Z. Total IMF reached 8 nT at 01/0240Z. The maximum southward component of Bz reached -6 nT at 01/0257Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (02 Jul, 03 Jul) and quiet to unsettled levels on day three (04 Jul).
III. Event probabilities 02 Jul-04 Jul
Class M 01/01/01
Class X 01/01/01
IV. Penticton 10.7 cm Flux
Observed 01 Jul 068
Predicted 02 Jul-04 Jul 068/068/068
90 Day Mean 01 Jul 071
V. Geomagnetic A Indices
Observed Afr/Ap 30 Jun 003/004
Estimated Afr/Ap 01 Jul 009/009
Predicted Afr/Ap 02 Jul-04 Jul 006/005-006/005-008/008
VI. Geomagnetic Activity Probabilities 02 Jul-04 Jul
A. Middle Latitudes
Minor Storm 01/01/05
Major-severe storm 01/01/01
B. High Latitudes
Minor Storm 20/20/25
Major-severe storm 20/10/20