Routine Space Environment Product (Daily)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12
000
FXXX12 KWNP 280031
DAYDIS

:Product: Forecast Discussion
:Issued: 2016 Jul 28 0030 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#             Forecast Discussion
#
Solar Activity

.24 hr Summary...
Solar activity was very low. There were no discernible flares observed,
no sunspots on the visible disk, and no Earth-directed coronal mass
ejections (CMEs) noted in available coronagraph imagery.

.Forecast...
Solar activity is expected to be very low throughout the period (28-30
Jul).


Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at moderate to high levels and
the greater than 10 MeV proton flux was at background levels throughout
the period.

.Forecast...
The greater than 2 MeV electron flux is expected to be at moderate
to high levels, and the greater than 10 MeV proton flux is expected to
remain at background levels, over the next three days (28-30 Jul).


Solar Wind

.24 hr Summary...
Solar wind parameters were indicative of nominal, background conditions.
Solar wind speed ranged from about 320-360 km/s, total field strength
was primarily between 2 to 5 nT, and the Bz component was variable, with
a noticeable shift into a positive orientation just after 27/1200
UTC. The phi angle continued primarily in a negative sector with several
oscillations into a positive sector just after midday.

.Forecast...
Solar wind parameters are expected to remain slightly enhanced on
day one (28 Jul) as a CH HSS moves into a geoeffective position.
Enhanced conditions are expected to continue into day two (29 Jul) as CH
HSS effects keep the solar wind values elevated. By day three, CH HSS
effects should begin to taper off, allowing the solar wind environment
to return to near background levels.


Geospace

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

.Forecast...
The geomagnetic field is expected to be quiet to unsettled with isolated
active periods and a slight chance of G1 (Minor) storm conditions, on
day one (28 Jul) as a CH HSS moves into a geoeffective position.
Unsettled to active conditions are expected, with a slight chance of G1
(Minor) storm conditions, early on day two (29 Jul) as CH HSS effects
persist. Mostly quiet to unsettled levels, with a chance for an isolated
period of active conditions, are expected on day three (30 Jul) as CH
HSS effects begin to wane.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.