…Excessive Rainfall threatens parts of the Central/Southern Plains,
Southeast and Mississippi/Ohio Valleys today…
…Severe Weather refocuses over the Great Plains this weekend…
…Southern Texas remains warmer than average through early next week…
A sequence of shortwave energies will support impactful weather across the
Central U.S. this weekend. Showers and thunderstorms will organize ahead
of a low pressure system over the Middle/Lower Mississippi Valley and
spread into the Southeast this morning and afternoon. Some storms may be
strong enough to produce heavy rainfall. A Slight Risk (at least 15%) of
Excessive Rainfall leading to Flash Flooding is in effect for portions of
Tennessee, Mississippi and Alabama today. Meanwhile, some dry-line storms
could turn severe over parts of the Central/Southern High Plains this
afternoon. The Storm Prediction Center issued a Slight Risk (level 2/5) of
Severe Thunderstorms for the aforementioned areas with supercells possibly
organizing into clusters and spreading into the Plains tonight. Severe
wind, hail and brief tornadoes are possible.
Another low pressure system emerging from the Rockies will bring a renewed
threat of severe weather to the Northern/Central Plains and Upper Midwest
on Sunday. A Slight Risk (level 2/5) of Severe Thunderstorms is in effect
from southeastern North Dakota to western Minnesota and down into central
Nebraska, where a line of severe storms may produce damaging wind gusts
and hail could be the main severe threats. There’s also a Slight Risk (at
least 15%) of Excessive Rainfall leading to Flash Flooding over parts of
southern Minnesota, southeastern South Dakota, eastern Nebraska and Iowa
on Sunday.
Deep upper-level troughing will bring rain and cooler temperatures to the
Pacific Northwest on Sunday. Temperatures will remain above average across
southern Texas, while warmer conditions expand across the Great Plains
through early next week. Approaching shortwave energy and an upper low
locked in just off the Northeast Coast will support warmer than average
temperatures over the Northeast for the next several days.
Kebede
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php