Storm Forecast
Valid: Mon 26 Mar 2007 06:00 to Tue 27 Mar 2007 06:00 UTC
Issued: Sun 25 Mar 2007 19:49
Forecaster: GROENEMEIJER

SYNOPSIS and DISCUSSION

A large blocking-high is located over eastern Sweden. Weak mid-level cyclones are expected over the Bay of Biscay, southwest of Portugal and the northern Tyrrhenean Sea. they are characterized by relatively steep lower tropospheric lapse rates that induce a couple of storms in their vicinity. The amount of instability is expected to be low as well as the vertical wind shear, so that the threat of organized severe storms should be low.