It seems Nate is hitting the Mississippi Gulf Coast with significant flooding.

The following is from the 4 am Discussion from the National Hurricane Center.

KEY MESSAGES:

1. Nate is producing life-threatening storm surge flooding in areas
of onshore flow and a storm surge warning remains in effect from
Pointe a la Hache to the Okaloosa/Walton county line in Florida.
Maximum flooding of 5 to 8 feet above ground level is expected
along the Mississippi coast within the next several hours.

2. Nate's fast forward speed over land will bring tropical storm
conditions well inland across portions of the southeastern U.S.

3. Nate will bring heavy rainfall of 3 to 6 inches with isolated
totals of 10 inches east of the Mississippi River from the central
Gulf Coast into the Deep South, eastern Tennessee Valley, and
southern Appalachians through Monday, resulting in the potential for
flash flooding in these areas.

4. Moisture from Nate interacting with a frontal zone will also
bring 2 to 5 inches of rain with isolated totals of 7 inches across
the Ohio Valley and central Appalachians Sunday and Monday, which
will increase the risk for flash flooding across these locations.