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Monday, November 11, 2024

Weekly Propagation Forecast Bulletins

 

Product: Weekly Highlights and Forecasts
:Issued: 2024 Nov 11 0155 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 04 - 10 November 2024

Solar activity ranged from low to high levels this period. R1 (Minor) radio blackouts were observed on 04-10 Nov, R2 (Moderate) radio blackouts were observed on 04, 06 and 10 Nov and R3 (Strong) radio blackouts were observed on 06 Nov. Regions 3883 (S06, L=076,
class/area Fkc/420 on 08 Nov) and 3889 (S10, L=005, class/area Fko/480 on 10 Nov) produced a majority of the activity this period. 

Region 3883 produced an M5.5 flare at 04/1508 UTC. Region 3887 (N16, L=151, class/area Dsi/140 on 06 Nov) produced an M5.8/Sf flare at 06/0850 UTC. Region 3889 produced an M5.3/1f flare at 06/1438 UTC and an M9.4/2b flare at 10/1206 UTC. The M9.4 flare had an
associated Type II Sweep with an estimated 928 km/s velocity and a 400 pfu Tenflare. The largest flare of the period was an X2.3/Sf at 06/1340 UTC with an associated Type II Sweep with an estimated 205 km/s velocity. During the period, a total of 52 C-class, 39 M-class
and 1 X-class flares were observed. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was was at normal to moderate levels on 04-06 Nov and 08-10 Nov and reached high levels on 07 Nov. 

Geomagnetic field activity ranged from quiet to minor storm (R1-Minor) levels. Brief periods of active levels were observed early on 04 Nov, followed by quiet to unsettled levels through late on 08 Nov. Active to minor storm levels were observed late on 08 Nov
through 10 Nov, possibly due to weak CME effects, transitioning into positive polarity CH HSS effects. During the period, wind parameters were at mostly nominal levels through midday on 07 Nov. On midday 07 Nov, a weak shock was observed were total field increased to 16 nT and bt dropped to -12 nT. During the summary period, wind speeds varied from a low of about 350 km/s to a high of about 465 km/s. 

Forecast of Solar and Geomagnetic Activity 11 November - 07 December 2024

Solar activity is expected to be at moderate levels (R1/R2 - Minor/Moderate), with a chance for high levels (R3-Strong) from 11 Nov - 07 Dec. The disk is expected to feature numerous complex regions throughout the outlook period. 

No proton events are expected at geosynchronous orbit. However, there is a chance for proton activity following significant solar flare activity during the outlook period. 

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels. 

Geomagnetic field activity is likely to be at unsettled to active periods on 11-16 Nov, 18 Nov, 20 Nov, 26-27 Nov, 30 Nov-03 Dec and 06-07 Dec, all due to influence from recurrent CH HSS effects. Mostly quiet periods are likely on 17 Nov, 19 Nov, 21-24 Nov, 28-29
Nov and 04-05 Dec. 

:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2024 Nov 11 0156 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact www.swpc.noaa.gov/content/subscription-services
#
#      27-day Space Weather Outlook Table
#                Issued 2024-11-11
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2024 Nov 11     210          15          5
2024 Nov 12     215          10          3
2024 Nov 13     215          15          4
2024 Nov 14     210          12          4
2024 Nov 15     205          10          3
2024 Nov 16     215           8          3
2024 Nov 17     220           5          2
2024 Nov 18     230           8          3
2024 Nov 19     235           5          2
2024 Nov 20     235          12          4
2024 Nov 21     240           5          2
2024 Nov 22     240           5          2
2024 Nov 23     240           5          2
2024 Nov 24     245           5          2
2024 Nov 25     245          10          3
2024 Nov 26     240          10          3
2024 Nov 27     245           8          3
2024 Nov 28     255           5          2
2024 Nov 29     250           5          2
2024 Nov 30     250          10          3
2024 Dec 01     240          12          4
2024 Dec 02     230           9          3
2024 Dec 03     220           8          3
2024 Dec 04     210           7          2
2024 Dec 05     205           5          2
2024 Dec 06     205          12          4
2024 Dec 07     200          12          4
(NOAA)