Viewing archive of Monday, 27 July 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jul 27 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 27 Jul 2015 until 29 Jul 2015
Solar flares

C-class flares expected, (probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

10cm fluxAp
27 Jul 2015097018
28 Jul 2015097008
29 Jul 2015097007

Bulletin

Solar activity is low, NOAA AR 2389 produced a C1.1 flare with peak at 12:34 UT on July 26. More C-class flares can be expected.

Geomagnetic conditions have reached active levels at planetary level (Kp = 4) due the mild influence of the solar wind from a small equatorial coronal hole. Unsettled to active conditions can be expected in the coming hours.

Today's estimated international sunspot number (ISN): 055, based on 15 stations.

Solar indices for 26 Jul 2015

Wolf number Catania///
10cm solar flux097
AK Chambon La Forêt013
AK Wingst010
Estimated Ap008
Estimated international sunspot number042 - Based on 24 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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

Gillam, MB, Whitehorse, YT, Yellowknife, NT
Anchorage, AK, Fairbanks, AK, Juneau, AK
The maximum X-ray flux of the past two hours is:
M4.28

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Latest alerts

07:09 UTC - Solar flare

Moderate M4.28 flare from sunspot region 4055

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Minor R1 radio blackout in progress (≥M1 - current: M1.53)


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Moderate M1.49 flare from sunspot region 4055

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Minor R1 radio blackout in progress (≥M1 - current: M1.16)


04:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 04:29 UTC

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