Updated Feb 19 2200 UTC Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 050 Issued at 2200Z on 19 Feb 2012 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was at low levels. New Region 1422 (N15E02) produced a C1/Sf flare at 19/0851Z. This region developed rapidly on the disk as a 10 spot D-type group. The remainder of the disk and limb was quiet and stable with no Earth-directed CMEs detected. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for M-class activity for the next three days (20 - 22 February), particularly from developing Region 1422. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was at quiet to unsettled levels through about 19/0200Z. For the following 6 - 9 hours, active to minor storm conditions were prevalent. This increase in activity was due to effects from a geoeffective coronal hole high speed stream. The period ended with predominately quiet conditions with isolated high latitude active intervals. During the period, ACE solar wind velocities steadily increased from about 325 km/s, reaching a peak of about 500 km/s at 19/0700Z. Through the remainder of the period, wind speeds gradually decreased to 400 km/s. At 19/0220Z, the Bz component of the interplanetary magnetic field reached a maximum southward extent of -14 nT while Bt reached a maximum of 16 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at predominately quiet levels for the next three days (20 - 22 February).