Routine Space Environment Product (Daily)
Issued by NWS

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FXXX12 KWNP 201231

:Product: Forecast Discussion
:Issued: 2018 May 20 1230 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
#             Forecast Discussion
Solar Activity

.24 hr Summary...
Solar activity was at very low levels. The solar disk was spotless. No
Earth-directed CMEs were observed in available satellite imagery.

Solar activity is expected to remain very low all three days (20-22

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at normal to moderate levels.
The greater than 10 MeV proton flux remained at background levels.

The greater than 2 MeV electron flux is expected to be at normal to
moderate levels for the next three days (20-22 May). The greater than 10
MeV proton flux is expected to continue at background levels.

Solar Wind

.24 hr Summary...
Solar wind parameters, as measured by the DSCOVR spacecraft, reflected a
nominal solar wind environment. Total magnetic field strength was at 5
nT or below. No significant periods of negative Bz were observed. Solar
wind speeds varied between +5/-4 nT. Phi angle was predominantly
oriented in the negative sector.

Solar wind parameters are expected to be at or near nominal levels for
the forecast period (20-22 May).


.24 hr Summary...
The geomagnetic field was quiet.

The geomagnetic field is expected to be mostly quiet for the forecast
period (20-22 May). is the U.S. government's official web portal to all federal, state and local government web resources and services.