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Solar activity

UTC

Thursday, May 23rd 2019, 08:30:00 UTC

Regions with Sunspots

Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z

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 (23 May, 24 May, 25 May).

24 hr48 hr72 hr
Event probabilities 23 May-25 May
Class M01 %01 %01 %
Class X01 %01 %01 %
Proton01 %01 %01 %

PCAF: green

Geophysical Activity Summary 21/2100Z to 22/2100Z

The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 398 km/s at 22/0237Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 166 pfu.

Geophysical Activity Forecast

The geomagnetic field is expected to be at quiet levels on days one and two (23 May, 24 May) and quiet to unsettled levels on day three (25 May).

Geomagnetic Activity Probabilities 23 May-25 May

24 hr48 hr72 hr
Middle Latitudes
Active10 %10 %25 %
Minor Storm01 %01 %05 %
Major-severe storm01 %01 %01 %
24 hr48 hr72 hr
High Latitudes
Active15 %15 %20 %
Minor Storm20 %20 %30 %
Major-severe storm15 %15 %25 %

3-days of 5-minute solar x-ray flux values (GOES-15)

Manually reviewed and edited by the duty forecaster

BeginMaxEndXrayRegion

Sources: NOAA's Space Weather Prediction Center (SWPC), Joint Science Operations Center (JSOC)

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