| Begin | Max | End | Xray | Region |
|---|
Solar activity
UTC
Friday, July 19th 2019, 07:30:00 UTC
Regions with Sunspots
Analysis of Solar Active Regions and Activity from 17/2100Z to 18/2100Z
Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk.
Solar Activity Forecast
Solar activity is expected to be very low on days one, two, and three (19 Jul, 20 Jul, 21 Jul).
| 24 hr | 48 hr | 72 hr | |
|---|---|---|---|
| Class M | 01 % | 01 % | 01 % |
| Class X | 01 % | 01 % | 01 % |
| Proton | 01 % | 01 % | 01 % |
PCAF: green
Geophysical Activity Summary 17/2100Z to 18/2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 420 km/s at 18/0306Z. Total IMF reached 6 nT at 18/1528Z. The maximum southward component of Bz reached -3 nT at 18/1828Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1918 pfu.
Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one, two, and three (19 Jul, 20 Jul, 21 Jul).
Geomagnetic Activity Probabilities 19 Jul-21 Jul
| 24 hr | 48 hr | 72 hr | |
|---|---|---|---|
| Active | 10 % | 15 % | 10 % |
| Minor Storm | 05 % | 01 % | 01 % |
| Major-severe storm | 01 % | 01 % | 01 % |
| 24 hr | 48 hr | 72 hr | |
|---|---|---|---|
| Active | 15 % | 15 % | 15 % |
| Minor Storm | 20 % | 20 % | 20 % |
| Major-severe storm | 20 % | 15 % | 15 % |
Space Weather Alerts Issued in the last 24 hours
CONTINUED ALERTSN 2957
Electron 2MeV Integral Flux exceeded 1000pfu
Issue Time: 2019 Jul 18 1219 UTC
| Continuation of Serial Number | 2956 |
| Begin Time | 2019 Jul 10 1230 UTC |
| Yesterday Maximum 2MeV Flux | 1690 pfu |
| Potential Impacts | Satellite systems may experience significant charging resulting in increased risk to satellite systems. |
3-days of 5-minute solar x-ray flux values (GOES-15)
Manually reviewed and edited by the duty forecaster
Sources: NOAA's Space Weather Prediction Center (SWPC), Joint Science Operations Center (JSOC)