* WHAT…Flooding caused by significant snowmelt and a general half
to three quarters of an inch of rainfall. Rainfall within the
Genesee Valley may remain just below half an inch.
* WHERE…Western and North Central New York.
* WHEN…From Tuesday afternoon through Thursday afternoon.
* IMPACTS…Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. The most prone
areas for flooding will be where ice jams typically develop.
* ADDITIONAL DETAILS…
– An intense storm system moving from the central plains across
the central Great Lakes will send a surge of Spring like
warmth the across our region Tuesday and Wednesday.
Temperatures will soar into the 50s over the western counties
on Tuesday with the mercury remaining well above freezing
Tuesday night. Temperatures will then climb well into the 50s
for the bulk of the region on Wednesday while being
accompanied by a general half to three quarters of an inch of
rainfall. The fast melt off of the snowpack will combine with
this rainfall to cause significant rises to area tributaries
with flooding becoming possible. Flooding concerns will be
particularly elevated in areas where tributaries are prone to
ice jam flooding.
– http://www.weather.gov/safety/flood