Viewing archive of Tuesday, 16 July 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
61 -160B5.29C3.012

Sunspot regions

Region 11791

Number of
sunspots
Size Class Magn. Class Spot Location
13 -2 110 DSO S14E04
HMIIF
HMIBC

Solar flares on this day

C2.95 C2.78

Region 11792

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 10 AXX N03E13
HMIIF
HMIBC

Region 11793

Number of
sunspots
Size Class Magn. Class Spot Location
6 3 210 60 ESI N21E62
HMIIF
HMIBC

Solar flares on this day

B7.67

Region 11794

Number of
sunspots
Size Class Magn. Class Spot Location
5 3 30 20 DAO N13W72
HMIIF
HMIBC

Region 11795

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 0 -10 AXX S05E49
HMIIF
HMIBC

All times in UTC

<< Go to daily overview page

G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 17:48 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Rovaniemi, Sodankylä
Kirkenes
Murmansk, Norilsk, Vorkuta
The solar wind speed is currently moderately high (585.1 km/sec.)
The density of the solar wind is moderate (26.87 p/cm3)
The strength of the interplanetary magnetic field is moderate (14.1nT), the direction is North (4.15nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-75nT)

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Latest alerts

18:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 17:00 UTC

alert


17:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 16:28 UTC

alert


14:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 13:58 UTC

alert


12:18 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:21 UTC


11:54 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 51GW at 12:57 UTC


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Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/26M1.0
Last geomagnetic storm2025/03/22Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025135 -19.6
Last 30 days133.7 -19.9

This day in history*

Solar flares
12001M3.86
22000M3.34
32001M3.14
41998M2.37
52024M1.9
DstG
11976-226G4
21991-168G4
31988-154G3
41959-132G4
51990-111G2
*since 1994

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