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Outlook DAY 1 (valid: 02/07/2019)

Severe Weather Outlooks FAQ

SYNOPSIS

An upper ridge over central Europe collapses while it intensifies over W Europe and N Atlantic. A weakening and slowly southwards drifting cold front is extending from W Russia across Ukraine and the Alps towards N Iberia.

DISCUSSION



ENH / SLGT risks have been issued for E Hungary, N Romania and Moldova, central Ukraine into W Russia with threat for severe storms, capable of producing severe winds, torrential rainfall and large to very large hail. An overlap of strong to extreme instability and moderate deep-layer shear will support organized severe storms, including supercells. Clustering into a larger system or two seems possible in the evening hours over E Ukraine into W Russia.



SLGT risk has been issued for central Europe across S France into N Spain with threat for severe storms, capable of producing large hail, torrential / excessive rainfall and severe winds. The widespread activity of mostly elevated severe storms seems likely from S Austria into E-CNTRL Slovenia and N Croatia in the afternoon, merging into the MCS in the evening while moving south. Moderate instability and marginal to moderate shear should support some organized storms, possibly also a few supercells. Further west, more isolated storms are likely over N Italy, S France and N Spain.

TSTM risk areas have been placed where convective storms are likely to occur but should remain sub-severe.

Severe weather outbreak across parts of the Czechia and Poland expected today, July 1, 2019
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