SOLAR ACTIVITY HAS BEEN HIGH. AN X4.9 OCCURRED AT 18/2210 AND WAS ASSOCIATED WITH REGION 8307 (N32E72). AN M2.3 AT 19/1222 AND M3.0 AT 19/1404 WERE ALSO ASSOCIATED WITH THIS REGION. THIS REGION IS EXPECTED TO CONTINUE TO PRODUCE X- AND M-CLASS FLARES.

SOLAR ACTIVITY IS EXPECTED TO MODERATE TO HIGH THROUGHOUT THE PERIOD AS REGION 8307 MOVES TOWARDS THE CENTER OF THE DISK.

THE GEOMAGNETIC FIELD HAS BEEN QUIET.

THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED TO ACTIVE WITH PERIODS OF MINOR STORM AT HIGHER LATITUDES. CORONAL HOLES ARE MOVING INTO A GEOEFFECTIVE LOCATIONS FOR THE REMAINDER OF THE PERIOD. AS REGION 8307 (N32E72) ROTATES TO THE CENTER OF THE DISK, ERUPTIONS OF CMES ARE GOING TO BE MORE GEOEFFECTIVE AS WELL. TYPE II (IMPORTANCE 3) AND IV (IMPORTANCE 2) BURSTS WERE ASSOCIATED WITH THE X4.9 AND M3.0 X-RAY FLARES. ESTIMATED SHOCK SPEED FROM X4.9 EVENT IS 1900 KM/S, AND 1000 KM/S +/- 200 KM/S FOR THE M3.0 FLARE.

  觀測的       19 AUG 135
  預測的   20 AUG-22 AUG  138/140/144
  90天平均值        19 AUG 114

OBSERVED AFR/AP 18 AUG  003/006
ESTIMATED AFR/AP 19 AUG  010/010
PREDICTED AFR/AP 20 AUG-22 AUG  015/015-025/020-015/010