Viewing archive of Monday, 14 March 2011
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2011 Mar 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 073 Issued at 2200Z on 14 Mar 2011IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity was moderate. Region 1169 (N18W47)
produced an impulsive M4/1n flare at 14/1952Z with associated radio
bursts at the higher range (4995, 8800, 15400 MHz). Region 1166
(N09W78) and 1169 are both Dao type spot groups and contain a
beta-gamma magnetic classification.
IB. Solar Activity Forecast
Solar activity is expected to be low
with a chance for an M-class event for day one (15 March). Low
activity with a slight chance for an M-class event are expected for
days two and three (16-17 March) as Regions 1166 and 1169 make their
transit around the west limb of the sun.
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic field was quiet. Solar wind speeds observed by the
ACE spacecraft continue to average around 550 km/s under the
influence of a coronal hole high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet for the next three days (15-17
March).
III. Event Probabilities 15 Mar to 17 Mar
| Class M | 40% | 20% | 15% |
| Class X | 05% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Mar 107 Predicted 15 Mar-17 Mar 105/100/100 90 Day Mean 14 Mar 094
V. Geomagnetic A Indices
Observed Afr/Ap 13 Mar 005/006 Estimated Afr/Ap 14 Mar 003/005 Predicted Afr/Ap 15 Mar-17 Mar 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 15 Mar to 17 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
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