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The center of Isaac, now a tropical storm, was located in central
Louisiana early this morning. The latest projection from the
National Hurricane Center continues to weaken the winds as the
system moves northwest. The remnant low is expected to be in central
Missouri by Saturday morning, then slowly track northeast across
central Illinois late Saturday night into Sunday. Significant
amounts of rain are likely to accompany this system as it moves
across the Midwest. Current indications are that amounts of 3 to 6
inches are likely across much of central and southeast Illinois,
with potential locally higher amounts. The rain should begin moving
in from the south Friday afternoon and continue through Saturday and
Sunday before diminishing from west to east Sunday night. The
heaviest rain is likely to occur from late Friday night through
Saturday afternoon.
Despite the extreme drought that has affected the area recently,
such heavy rain amounts can lead to flash flooding, as the ground is
hard in many areas and cannot readily absorb a lot of rain in a
short period of time. Urban, low-lying or poor drainage areas are
also susceptible to flooding.
In addition to the heavy rain threat, as the system approaches
Saturday afternoon and Saturday night, some gusty winds may
accompany the heavier showers and thunderstorms.
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A large portion of the Midwest, from central and eastern Missouri
into central parts of Illinois and Indiana, will have the potential
for very heavy rain. However, any deviation in the forecast track
will produce a significant adjustment in the axis of heavy rain
across the region.
Be sure to monitor later forecasts if you have any outdoor plans
for this upcoming holiday weekend or will be traveling across the
Midwest.
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For more information and updates:
http://www.crh.noaa.gov/ilx/
[Text from National Weather Service,
Lincoln office] |
