Flood Potential Outlook
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Hydrologic Outlook
National Weather Service Tallahassee FL
325 PM EDT Mon Apr 20 2020 /225 PM CDT Mon Apr 20 2020/

...RIVER FLOODING TO INCREASE ACROSS SOUTH GEORGIA IN THE NEXT
COUPLE OF DAYS...

...MORE RAIN ON THE WAY WHICH COULD INCREASE SEVERITY OF FLOODING BY
THE WEEKEND...

.SUMMARY...

Over the last week, two storm systems have impacted the region and
delivered locally heavy rains, especially across Middle Georgia. The
most recent event on Sunday, produced 1-2 inches of rain across
South Georgia, but much heavier amounts, up to 6 inches, fell across
Middle Georgia. This has resulted in significant rises along the
Middle Flint and Chattahoochee River Basins. These increased flows
are headed toward South Georgia and are expected to cause a period
of at least minor flooding along the Flint and Chattahoochee Rivers
later this week.

Another storm system is expected to impact the region on Thursday,
bringing potential for additional heavy rainfall. This system could
enhance ongoing river flooding as well as present a flash flood
threat, especially across South Georgia.

.Flood potential and concerns...

Releases from West Point, Columbus, and Walter F George will cause
the Chattahoochee River to rise to near flood stage along the
Alabama and Georgia border beginning today and continuing through
much of the week. This water will also result in significant
releases from Woodruff Dam which will cause minor flooding
throughout the Apalachicola River basin.

Heavy rainfall this past weekend in Middle Georgia has resulted in
minor to near moderate flooding along portions of the Middle Flint
and this will increase inflows into Lake Blackshear. Releases
downstream toward Albany are planned to increase this week, which
will result in minor flooding on the lower Flint in the coming days.

The next storm system is expected to affect the region on Thursday.
While there remains some uncertainty with the intensity of this
system, it appears that at least another 2-3 inches of rain, with
isolated heavier totals are possible across portions of Southeast
Alabama and Southwest Georgia.

With rivers running near or at flood stage across much of South
Georgia, this additional rainfall could increase the severity of
flooding along the following rivers and creeks in South Georgia:

1.Kinchafoonee Creek
2.Muckalee Creek
3.Flint River
4.  Chattahoochee River

Finally, recent rains over the last month have soils across South
Georgia fairly wet, which increases the flash flood potential should
rainfall amounts with this next system exceed 3 inches.

.Preparedness Actions...

Should conditions continue to indicate an increased likelihood of a
heavy rainfall event on Thursday, a flash flood watch may be issued
for a portion of our area later this week.

Residents living along area creeks and rivers in South Georgia and
Southeast Alabama should consider evaluating their flood threat,
especially with many of these creeks and rivers currently rising.

For an assessment of current and future hydrologic information in
the Tallahassee area of responsibility, visit our website at
www.weather.gov/tallahassee and click on the Rivers and Lakes link.
Users of our hydrologic forecasts are reminded that these
predictions only utilize the next 48 hours of rainfall. Thus, it
wont be until Tuesday evening that river forecasts would begin to
include forecast rainfall from Thursdays event. For more
information be sure to interact with our office through twitter
@NWSTALLAHASSEE.

$$

Godsey


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