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23 May 2017
20170522 Week Rotation Today Rotation Week 20170524

NOAA
5 Active Regions

Flare Forecast
Region Flare Probabilities (%)
NOAA Number McIntosh Class C-class M-class X-class

12656
12658
12659
12660

Axx
Hsx
Cro
Cro
FPS
NOAA
3 5
5 5
13 10
13 10
FPS
NOAA
1 1
3 1
2 1
2 1
FPS
NOAA
0 1
0 1
0 1
0 1

Solar Monitor's flare prediction system's (FPS) probabilities are calculated using NOAA Space Weather Prediction Center data combined over 1969-1976 and 1988-1996 (details of which can be found in Bloomfield et al., 2012, The Astrophysical Journal Letters, 747, L41 , along with full forecast verification testing).

See Gallagher, P. T., Moon, Y.-J., Wang, H., Solar Physics, 209, 171, (2002),
Wheatland, M. S., 2001, Solar Physics, 203, 87 and Moon et al., 2001, Journal of Geophysical Research-Space Physics, 106(A12) 29951 for further details.

Occurrence of '...' indicates that McIntosh class was not observed in the period over which the Poisson flare rate statistics were determined. When viewed in real-time and before 22:00 UT, NOAA predictions are valid up to 22:00 UT on the current date. When viewed in real-time after 22:00 UT (or when viewing past dates), NOAA predictions are valid up to 22:00 UT on the following date. The most recent data can also be found at NOAA's 3-day Space Weather Predictions page.

Please contact Peter Gallagher if you have any comments or questions regarding this research.


IDL Access

Today's/Yesterday's NOAA Active Regions
NOAA Number
Latest
Position
Hale
Class
McIntosh Class
Sunspot Area
[millionths]
Number of Spots
Recent
Flares
12656 N11W20
(319",207")
α/α Axx/Hax 0010/0020 01/01 -
12658 S08W22
(352",-106")
α/α Hsx/Hrx 0010/0010 02/01 -
12659 N14E07
(-112",257")
β/β Cro/Dao 0020/0040 02/03 -
12660 S11W19
(303",-155")
β/- Cro/--- 0012/---- 10/-- -
12657 N07W69
(879",125")
/ / / / -

Class (HH:MM) -Today
Class (HH:MM) -Yesterday

Events not associated with currently named NOAA regions: None

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 23-May-2017 00:30 UT . The greyed out and light-blue entries are values from the previous day. Slashed cells indicate that the active region has no spots. The latest positions of the active regions are given in both heliographic and heliocentric co-ordinates. The region positions are valid on 23-May-2017 07:30 UT .