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Thursday, June 10, 2010

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2010 Jun 08 2051 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
31 May - 06 June 2010

Solar activity was very low. The week’s activity consisted of a few, low level B-class flares, primarily from Region 1076 (S19, L=196, class/area Dso/190 on 03 June). Region 1076 emerged on the disk on 31 May and grew steadily for 31 May - 03 June, followed by a general decreasing trend for the remainder of the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period.

The geomagnetic field began the week at unsettled to active levels with minor storm periods at high latitudes. Activity levels decreased to quiet to active levels on 01 June and were mostly quiet for 02 June. An increase to quiet to active levels with some minor storm periods at high latitudes was observed on 03 June and lasted through about mid-day on 04 June. Activity declined to generally quiet levels for the remainder of the period. The elevated activity for 31 May - 01 June and 03 – 04 June was due to a high speed stream from a favorably positioned coronal hole.

Forecast of Solar and Geomagnetic Activity
09 June - 05 July 2010


Solar activity is expected to be at very low to low levels.

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 at the beginning of the period from 09-10 June. Normal background levels are expected until 26 June when another increase to high levels is expected due to recurrence. Normal background levels are expected to resume after 01 July.

The geomagnetic field is expected to be unsettled for 09 June due to persistent effects from a high speed stream. Quiet levels are expected for 10-14 June, followed by an increase to mostly unsettled levels on 15-17 June in response to a high speed stream from a coronal hole. Quiet levels are expected for 18-24 June, followed by another increase to unsettled to active levels for 25-28 June in response to a recurrent coronal hole. Quiet levels are expected to prevail for 29 June - 05 July

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Jun 08 2051 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2010 Jun 08
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Jun 09 70 8 3
2010 Jun 10 70 5 2
2010 Jun 11 70 5 2
2010 Jun 12 70 5 2
2010 Jun 13 70 5 2
2010 Jun 14 70 5 2
2010 Jun 15 70 8 3
2010 Jun 16 70 8 3
2010 Jun 17 70 8 3
2010 Jun 18 72 5 2
2010 Jun 19 75 5 2
2010 Jun 20 75 5 2
2010 Jun 21 75 5 2
2010 Jun 22 75 5 2
2010 Jun 23 75 5 2
2010 Jun 24 75 5 2
2010 Jun 25 75 12 3
2010 Jun 26 75 15 3
2010 Jun 27 72 15 3
2010 Jun 28 72 8 3
2010 Jun 29 72 5 2
2010 Jun 30 72 8 3
2010 Jul 01 72 5 2
2010 Jul 02 70 5 2
2010 Jul 03 70 5 2
2010 Jul 04 70 5 2
2010 Jul 05 70 5 2
(NOAA)