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Blazars are the most extreme subclass of active galactic nuclei withrelativistic jets emerging from a super-massive black hole and forming a smallangle with respect to our line of sight. Blazars are also known to be relatedto flaring activity as they exhibit large flux variations over a wide range offrequency and on multiple timescales, ranging from a few minutes to severalmonths. The detection of a high-energy neutrino from the flaring blazar TXS0506+056 and the subsequent discovery of a neutrino excess from the samedirection have naturally strengthened the hypothesis that blazars are cosmicneutrino sources. While neutrino production during gamma-ray flares has beenwidely discussed, the neutrino yield of X-ray flares has received lessattention. Motivated by a theoretical scenario where high energy neutrinos areproduced by energetic protons interacting with their own X-ray synchrotronradiation, we make neutrino predictions over a sample of a sample of X-rayblazars. This sample consists of all blazars observed with the X-ray Telescope(XRT) on board Swift more than 50 times from November 2004 to November 2020.The statistical identification of a flaring state is done using the BayesianBlock algorithm to the 1 keV XRT light curves of frequently observed blazars.We categorize flaring states into classes based on their variation from thetime-average value of the data points. During each flaring state, we computethe expected muon plus anti-muon neutrino events as well as the total signalfor each source using the point-source effective area of Icecube for differentoperational seasons. We find that the median of the total neutrino number (inlogarithm) from flares with duration $<30$ d is $\mathcal{N}^{(\rmtot)}_{\nu_{\mu}+\bar{\nu}_{\mu}} \sim 0.02$.

Probing Neutrino Emission from X-ray Blazar Flares observed with Swift-XRT