Product: Weekly Highlights and Forecasts
:Issued: 2019 May 20 0537 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 13 - 19 May 2019
Solar activity was at very low to low levels, with low-level activity observed on 15 May due to a C2.0/SN flare from Region 2741 (N05 L=272, class/area Hsx/160 on 15 May). Very low-level activity was observed for the remainder of the period. Two eruptions were observed in coronagraph imagery, but were directed east and determined to not be geo effective.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels on 13, 15, and 16 May. Normal to moderate levels were observed for the remaining days in the period.
Geomagnetic field activity reached G3 (Major) storm levels on 14 May due to effects from a CME that erupted on 11 May. G3 storm conditions were observed during the 14/0600-0900 UTC synoptic period, with G2 storm conditions occurring in the 14/0300-0600 UTC period. Active conditions occurred in the 14/0900-1200 and 14/1800-2100 UTC periods. Solar wind parameters at the DSCOVR spacecraft were enhanced with Bt reaching as high as 15 nT accompanied by prolonged periods of southward Bz. Solar wind speed reached a maximum of 568 km/s. Unsettled conditions were observed on 16-17 May. Quiet conditions were observed for the remainder of the summary period.
Forecast of Solar and Geomagnetic Activity 20 May - 15 June 2019
Solar activity is expected to be very low levels throughout the period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels on 21-24 May and 29 May - 02 June due to coronal hole high speed stream effects. Normal to moderate levels are expected for the remainder of the period.
Geomagnetic field activity is expected to be at active levels on 29 May due to recurrent coronal hole activity. Quiet to unsettled levels are expected for the remainder of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 May 20 0537 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2019-05-20
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2019 May 20 69 8 3
2019 May 21 69 8 3
2019 May 22 68 8 3
2019 May 23 67 5 2
2019 May 24 67 5 2
2019 May 25 67 5 2
2019 May 26 67 5 2
2019 May 27 67 5 2
2019 May 28 67 10 3
2019 May 29 67 12 4
2019 May 30 70 8 3
2019 May 31 72 10 3
2019 Jun 01 74 5 2
2019 Jun 02 76 5 2
2019 Jun 03 76 5 2
2019 Jun 04 76 5 2
2019 Jun 05 76 5 2
2019 Jun 06 76 5 2
2019 Jun 07 76 5 2
2019 Jun 08 76 5 2
2019 Jun 09 76 5 2
2019 Jun 10 76 5 2
2019 Jun 11 74 5 2
2019 Jun 12 72 5 2
2019 Jun 13 72 5 2
2019 Jun 14 70 5 2
2019 Jun 15 70 5 2
(NOAA)