Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
242 AM EDT Sun Oct 18 2026

Valid 12Z Sun Oct 18 2026 - 12Z Tue Oct 20 2026

...Nor'easter develops along the Carolina coast this weekend,
bringing potential coastal flooding and beach erosion along
portions of the Mid-Atlantic coast into early next week...

...Flash flooding risk for portions of South Florida for Sunday...


A non-tropical coastal low (Nor'easter) off the North Carolina
coast is expected to track further offshore, limiting inland
showers. However, persistent onshore flow will continue to bring
coastal impacts along portions of the Mid-Atlantic coast.
Persistent and strong onshore winds can result in coastal flooding
and beach erosion into Tuesday. Across southern Florida, a
lingering frontal boundary will renew showers and thunderstorms
through Monday. Slow-moving storms may produce heavy downpours,
leading to localized flash flooding across portions of South
Florida on Sunday.

Across the Southwest, moisture will continue to stream northward
from northwestern Mexico and will support scattered showers and
thunderstorms across portions of the Southwest through Monday.
Rainfall coverage and amounts will depend on the northward extent
of the moisture plume and the persistence of convective
development. Further north, a approaching low pressure system over
the eastern Pacific will bring increasing precipitation chances
along the coast. Otherwise, daytime highs begin to moderate to
seasonal temperatures through Monday.


Oudit


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php