Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 30 November 2019

Status Report From: Space Weather Prediction Center (NOAA)
Posted: Saturday, November 30, 2019

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 334 Issued at 2200Z on 30 Nov 2019 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: 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 (01 Dec, 02 Dec, 03 Dec). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 416 km/s at 30/1200Z. Total IMF reached 7 nT at 30/0922Z. The maximum southward component of Bz reached -5 nT at 29/2123Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 504 pfu.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (01 Dec, 02 Dec) and quiet to unsettled levels on day three (03 Dec). III. Event probabilities 01 Dec-03 Dec Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Nov 070 Predicted 01 Dec-03 Dec 070/070/070 90 Day Mean 30 Nov 069 V. Geomagnetic A Indices Observed Afr/Ap 29 Nov 003/003 Estimated Afr/Ap 30 Nov 004/005 Predicted Afr/Ap 01 Dec-03 Dec 006/005-006/005-007/008 VI. Geomagnetic Activity Probabilities 01 Dec-03 Dec A. Middle Latitudes Active 10/10/15 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/25 Major-severe storm 10/10/25

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