SOLAR ACTIVITY BECAME HIGH DUE TO THE OCCURRENCE OF FIVE M-CLASS EVENTS. OPTICALLY UNCORRELATED M2 EVENTS OCCURRED AT 24/1112Z AND 24/1133Z. NEW REGION 8645 (S26E69) ROTATED ONTO THE DISK AND PRODUCED AN M1/SF AT 23/2300Z, AN M1/1N AT 24/0404Z, AND A LONG DURATION M3/SF AT 24/0756Z. WHILE STILL NOT FULLY VISIBLE, THIS REGION SHOWED ITSELF AS A MODERATE SIZE D CLASS SUNSPOT GROUP. IT IS VERY NEAR THE LOCATION OF OLD REGION 8611 THAT WAS ACTIVE LAST ROTATION. REGION 8636 (N21W13) PRODUCED SEVERAL C-CLASS SUBFLARES. OVERALL, THIS REGION WAS STABLE AND EXHIBITED MINOR MIXING OF POLARITIES.

SOLAR ACTIVITY SHOULD CONTINUE AT A MODERATE LEVEL. M-CLASS EVENTS ARE EXPECTED TO CONTINUE FROM REGION 8645 PRIMARILY DUE TO PERSISTENCE AND THE HISTORY OF THIS AREA. REGION 8636 IS EXPECTED TO PRODUCE ONLY ISOLATED M-CLASS EVENTS. THERE IS A SLIGHT POSSIBILITY OF MAJOR FLARES FROM THIS REGION AND TO A LESSER DEGREE FROM REGION 8645.

THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. SOLAR WIND VELOCITY REMAINED ELEVATED ABOVE NORMAL AND OCCASIONALLY EXCEEDED 500 KM/S.

THE GEOMAGNETIC FIELD IS EXPECTED TO REMAIN QUIET TO UNSETTLED FOR THE NEXT THREE DAYS. NO SIGNIFICANT CORONAL MASS EJECTIONS WERE OBSERVED WITH THE RECENT ACTIVITY ON THE DISK AND EAST LIMB. THERE IS A SLIGHT POSSIBILITY OF AN ENERGETIC PROTON EVENT SHOULD REGION 8636 PRODUCE A MAJOR FLARE.

  觀測的       24 JUL 184
  預測的   25 JUL-27 JUL  186/189/190
  90天平均值        24 JUL 156

OBSERVED AFR/AP 23 JUL  010/012
ESTIMATED AFR/AP 24 JUL  009/012
PREDICTED AFR/AP 25 JUL-27 JUL  010/012-008/010-008/008