Viewing archive of Sunday, 14 May 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 May 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 134 Issued at 2200Z on 14 May 2023IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C7 event observed at
14/0917Z from Region 3296 (N15, L=141). There are currently 7 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 (15
May, 16 May, 17 May).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 534 km/s at 14/2009Z. Total IMF reached 8
nT at 14/1514Z. The maximum southward component of Bz reached -7 nT at
14/1515Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 204 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (15 May), unsettled to active levels on
day two (16 May) and quiet to unsettled levels on day three (17 May).
III. Event Probabilities 15 May to 17 May
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 May 140 Predicted 15 May-17 May 135/135/130 90 Day Mean 14 May 156
V. Geomagnetic A Indices
Observed Afr/Ap 13 May 012/011 Estimated Afr/Ap 14 May 006/007 Predicted Afr/Ap 15 May-17 May 005/005-011/014-007/008
VI. Geomagnetic Activity Probabilities 15 May to 17 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 15% | 20% | 20% |
All times in UTC
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