…Widespread, potentially significant flash flooding possible in central
and southwestern Louisiana tonight…
…Showers and thunderstorms spread across the Tennessee/Ohio Valleys
through Sunday…
…An atmospheric river will bring heavy coastal rain and high elevation
snowfall to portions of the Pacific Northwest beginning Sunday night…
…Above average temperatures continue for much of the country through
early next week…
A slow moving cold front will continue to focus substantial moisture over
portions of the Lower Mississippi Valley tonight. There’s a High Risk of
Excessive Rainfall leading to Flash Flooding across much of central and
southwestern Louisiana this evening. Remember to avoid driving through
flooded roadways. Anomalous moisture will work its way up into the
Tennessee/Ohio Valleys this evening and produce some additional showers
and thunderstorms through Sunday evening. Rain showers move into the
Northeast/Mid-Atlantic on Sunday as the aforementioned cold front moves
through the region.
A deep area of low pressure will bring coastal heavy rain and high
elevation snow across the Pacific Northwest beginning Sunday night. Rain
and snow will likely spread farther inland over parts of northern
California and the Northern Rockies on Monday. Rainfall isn’t likely to
cause any flash flooding concerns and snowfall probably won’t cause
notable impacts since it’ll remain confined to the highest peaks of the
Northwest mountains. Temperatures across the country should remain mild
beneath a predominantly ridge-y pattern.
Kebede
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php