Diskussion av prognoserat rymdväder

Datum av rapporten: 2018 May 23 0030 UTC
Skapad av NOAA SWPC och bearbetad av SWL

Solaktivitet

Sammanfattning av de senaste 24 timmarna
Solar activity remained at very low levels. Region 2710 (N17E52, Bxo/beta) has been stable since rotating onto the disk. A long duration B2 flare, followed by a B8 flare, were observed at 22/0507 UTC and 22/1459 UTC, respectively. Both of these events occurred from an area of enhanced brightening beyond the E limb at about N13. This new region is expected to rotate onto the visible disk on or about 25 May. No Earth-directed CMEs were observed in available satellite imagery.
Prognos
Solar activity is expected to remain very low with a chance for C-class activity all three days (23-25 May). The chance for C-class activity is due to potential flare activity from an unnumbered region beyond the NE limb.

Energirika partiklar

Sammanfattning av de senaste 24 timmarna
The greater than 2 MeV electron flux was at normal to moderate levels with a peak flux of 954 pfu observed at 22/2025 UTC. The greater than 10 MeV proton flux remained at background levels.
Prognos
The greater than 2 MeV electron flux is expected to be at expected to increase to moderate to high levels all three days (23-25 May) due to an enhanced solar wind environment associated with CH HSS effects. The greater than 10 MeV proton flux is expected to continue at background levels.

Solvind

Sammanfattning av de senaste 24 timmarna
Solar wind parameters, as measured by the DSCOVR spacecraft, indicated a nominal solar wind environment through 22/1110 UTC. Wind speeds averaged about 300 km/s, total field ranged between 2-4 nT, the Bz component varied between +1 nT to -4 nT and phi remained in a mostly negative sector. After 22/1110 UTC, a weak CIR in advance of the anticipated positive polarity CH HSS, was observed. Wind speeds indicated a slight uptick to about 325 km/s through about 22/1630 UTC and further increased to near 400 km/s through periods end. Total field ranged between 4-9 nT while Bz varied between +/-7 nT. A SSBC from a negative to positive orientation was observed at about 22/1640 UTC.
Prognos
Solar wind parameters are expected to become further enhanced on day one (23 May) as a positive polarity extension off the northern crown CH HSS becomes geoeffective. Based on STEREO-A PLASTIC data, wind speeds are anticipated to increase to near 500 km/s through day two (24 May). By day three (25 May), wind parameters are expected to slowly weaken as the CH HSS moves out of a geoeffective position.

Geospace

Sammanfattning av de senaste 24 timmarna
The geomagnetic field was at quiet levels.
Prognos
The geomagnetic field is expected to be at predominately quiet to unsettled conditions, with isolated active intervals, on days one and two (23-24 May) under positive polarity CH HSS influence. By day three (25 May), geomagnetic conditions are expected to taper off to predominately quiet levels with isolated unsettled conditions early.
Enligt den aktuella datan finns det ingen chans för norrsken på medelhöga breddgrader

Senaste nytt

Stöd SpaceWeatherLive.com!

För att vara tillgängliga vid stora norrskensutbrott måsta vi ha kraftiga servrar som kan hantera alla besökare. Donera och stöd vårt projekt, så att vi kan finnas online även under stora stormar!

59%

Senaste notiser

Vad är norrskensmeddelande?

Rymdvädersfakta

Senaste X-utbrottet:10/09/2017X8.2
Senaste M-utbrottet:20/10/2017M1.0
Senaste geomagnetiska stormen:06/05/2018Kp6 (G2)
Dagar utan solfläckar i 2018:78
Senaste dag utan solfläckar:20/05/2018

I dag i historien*

Solutbrott
12000C9.5
22000C5.6
32000C5.4
42000C4.3
52013C3.9
ApG
1200278G4
2200734G1
3200029G3
4199520G2
5201417G1
*sedan 1994

Sociala medier