City of Hamilton
9:33 PM EST Friday 04 March 2011
Rainfall warning for
City of Hamilton continued
..Significant rain tonight, Saturday and Saturday night..
A substantial rain event is slated to begin tonight as a front stalls on a line from Central Lake Huron through Georgian Bay tonight and Saturday. Plenty of moisture migrating northwards from the gulf of Mexico combined with decent lift along and ahead of the front will cause widespread rain, occasionally heavy, to envelop much of Southern Ontario. It will become heavier overnight in the southwest and then spread northeast affecting much of Southern Ontario on Saturday. Eastern Ontario will experience the heavier rainfall later Saturday into Saturday night. Widespread rainfall amounts of 25 to 40 mm are expected tonight through Saturday night. A few areas will likely exceed 50 mm.
The rain will change briefly to snow before ending Saturday night.
The warning criteria is 25 mm within 24 hours (fairly conservative criteria) based on the fact that runoff is more significant in areas where snow pack is minimal and the ground is still frozen.
No comments:
Post a Comment