Flood Potential Outlook
Issued by NWS St. Louis, MO

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Hydrologic Outlook
National Weather Service Saint Louis MO
340 AM CDT Mon Apr 29 2019

...HEAVY RAINFALL LIKELY THROUGH THURSDAY...

A frontal boundary will setup across our region later today and
will be near stationary into Thursday, resulting in waves of
showers and thunderstorms moving through. Total rainfall by
Thursday afternoon is forecast to be 2 to 4 inches across the
entire area, with locally higher amounts possible where
thunderstorms with high rainfall rates can concentrate for a
period of time.

The effect from this rainfall will likely be to aggravate existing
mainstem river flooding and possibly result in new river flooding
on area tributaries.

Present indications suggest that the highest rainfall rates for
most locations will occur late Tuesday afternoon through Tuesday
night and this period, along with the immediate aftermath into
Wednesday, is greatest concern for possible flash flooding to
develop.

Although the additional rainfall on Wednesday night into Thursday
is not expected as high, the anticipated saturated grounds from
the heavy rainfall from previous days will result in it not taking
much additional rainfall to kick off additional flooding.

Be sure to remain up to date with the latest river forecasts, and
possible warnings, especially if you live along a river or other
flood prone location.

$$

TES


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