Weekly Bulletin on Solar and Geomagnetic Activity
               Highlights on 7 - 13.04.2014 ç.,
                 Forecast on 14 - 21.04.2014,
            Carrington Rotation 2149 (7.36.04.2014)

SUNSPOT-FORMING ACTIVITY REMINDER AT THE MODERATE LEVEL. AVERAGE
OF SUNSPOT NUMBER  IN THE INTERNATIONAL SYSTEM WAS MADE W=054+10
/-10.  ON THE VISIBLE SOLAR DISK CONSTANTLY OBSERVED 7 - 5 SMALL 
SUNSPOT GROUPS, ALL QUITE.

NEXT WEEK IS EXPECTED THE MODERATE AND THE LOW LEVELS OF SUNSPOT 
FORMING ACTIVITY.  ESTIMATED MOST LIKELY WEEKLY AVERAGE VALUE OF 
RELATIVE SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM FOR THE NEXT 
WEEK IS EXPECTED W=050+10/-10.

FLARE ACTIVITY WAS AT THE LOW LEVEL. WITHIN THE PERIOD WERE OB-
SERVED 3 SOLAR FILAMENT EJECTIONS (NON GEOEFFCTIVE). BY SOHO AND 
STEREO CORONOGRAPHS DATA THERE WERE OBSERVED 39 CME, ONE OF WHICH 
WAS THE "PARTIAL HALO III" TYPE AND 2-THE TYPE "PARTIAL HALO II".
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FLARES  to   tm  te   c/p local. Class  E(1-8A)   AR   RII/IV CME

 DSF     to      te   c/p local.     l in deg.  Fl    AR     CME
10.04  0004    0029  S14å27L280        9
10.04  0622    1400  S31W35L342       14
10.04 >0945   <2312  S33E47L260        7 
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 NEXT WEEK FLARE ACTIVITY IS EXPECTED AT THE AVERAGE AND THE LOW LE-
VELS.

ON THE VISIBLE SOLAR DISK THE FOLLOWING CORONAL HOLES WERE OBSERVED:
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  sign N end   Å end   S end   W end      EE   R  G   Observatories
CH -   S32L294 S40L289 S65L299 S45L339  09.04  2      SDO, SOHO,....
CH +   N35L324 N32L319 N16L331 N18L344  12.04  6      SDO, SOHO,....
R - solar rotations; KP - KIT PEAK solar observatory;
EE-date of possible geomag. disturbance in the Earth's environment.
G - geoeffectivity in last solar rotation; 
A-active geomagnetic condition.
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AFTER 12.04/06 UT THE EARTH  IS IN "-" SECTOR OF INTERPLANETARY MAGNE-
TIC FIELDS. THE FOLLOWING SECTORAL BOUNDARY -/+ THE EARTH SHOULD PASS 
14.04.

APRIL     07     08     09     10     11     12     13      APRIL
Wus      106    094    095    078    083    074    095
F10.7    140    132    131    137    138    136    137      
èbcg    B5.5   B3.5   ÷5.1   ÷8.0   ÷6.2   ÷5.7   B4.4       GOES
Sp       420    440    430    420    660    710    740  ÍÄÐ   
N                1      1      1      1             2     
IMF      -/+     +      +      +      +      +/-    -        áóå
Å>2   9.9E+4  7.9å+4 9.2å+4 4.5å+5 3.4å+5 2.6å+5 4.6E+5      GOES
Ie>2                                                    pfu  GOES 
Ap        11     4      6      2      7      27     15   Îô   áÒ
Dst                                                      Îô  KéOTO
Amsc      11     8      7      6      11     17     12   Îô  éúíéòáî
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Å>2 - a fluency in (electrons/cm2-day-sr) with E>2 MeV.
Ie>2 - the maximum intensity of electron flux in geostationary orbits 
in days according to GOES 15 in (electrons/cm2-s-sr) for events
> 1000 pfu.

THE SMALL SOLAR PROTON EVENT WAS REGISTERED 5.04 FROM BACK SIDE FLARE 
EVENT:
Pr (>10 MeV): tO - 5.04/07 UT; tmax - 06/12 UT: 1 pfu; te - 8/24 UT.
 
THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT VERY HIGH 
LEVEL NOT OBSERVED.

THE GREATER THAN 2 MeV ELECTRON FLUX AT GEOSTATIONARY ORBIT VERY HIGH 
LEVEL NOT EXPECTED.

GEOMAGNETIC CONDITIONS REMAIN QUITE AND UNSETTLED. HOWEVER, ON APRIL 12 
THE EARTH PASSED OVER HIGH-SPEED STREAM  FROM THE SOLAR CORONAL HOLE OF 
THE SOLAR NORTHERN HEMISPHERE. GEOMAGNETIC CONDITIONS BECAME ACTIVE. AC-
CORDING TO THE IZMIRAN DATA  IS REGISTERED 6-hour SUBSTORM BY THE INTEN-
SITY G1.  AT THE SAME TIME  ACCORDING TO THE DATA OF CENTER  IN BOULDER 
THIS WAS THE 9-hour SUBSTORM OF INTENSITY G1.

NEXT WEEK THE GEOMAGNETIC CONDITIONS ARE EXPECTED UNSETTLED AND QUIET.

HIGHLIGHT AND FORECAST COMPOSED FROM DATA
OF NOAA SWPC            http://www.sec.noaa.gov,
OF THE SOLAR INFLUENCES DATA ANALYSIS CENTER - 
SIDC, BELGIUM           http://sidc.oma.be/index.php3, 
OF THE IZMIRAN, RUSSIA  http://www.izmiran.ru