Every day at 17:00 UTC an observer/forecaster on duty at SPS issued a probabilistic flare forecast for three solar flare classes C, M and X. These flare classes are defined according the peak of the flux of soft X-ray radiation produced by the flare. The forecast consist of two parts: full disk per visible active regions. Full disc flare forecast then combines the probabilities of flare occurence in visible active regions into a one global forecast. The forecast is human generated and is valid for next 24 hours from the time of issue. This product provides: percentual probabilities of flares occurence (C/M/X classes) for full disc; for active regions NOAA number (NOAA no.), NOAA location, SPS internal archive number (Ondřejov no.), Ondřejov location, percentual flare probabilities (C/M/X classes).
This product is accessible via API as an XML file.
| C % | M % | X % |
|---|---|---|
| 99 | 35 | 10 |
| NOAA no. | NOAA LOCATION | ONDREJOV no. | ONDREJOV LOCATION | C % | M % | X % |
|---|---|---|---|---|---|---|
| 4378 | N16W18@2026-03-05 04:30 UTC | 036 | N16W21@2026-03-05 06:29 UTC | 45 | 20 | 5 |
| 4381 | N08E13@2026-03-05 04:30 UTC | 039 | N07E07@2026-03-05 06:29 UTC | 85 | 30 | 10 |
| 4383 | N15W58@2026-03-05 04:30 UTC | 041 | N14W52@2026-03-05 06:29 UTC | 30 | 5 | 1 |
| 4384 | N09E37@2026-03-05 04:30 UTC | 042 | N09E32@2026-03-05 06:29 UTC | 99 | 35 | 10 |
| 4385 | S08E28@2026-03-05 04:30 UTC | 043 | S08E26@2026-03-05 06:29 UTC | 40 | 15 | 5 |