900
AGUS74 KWCO 292003
HMDNWC

National Hydrologic Discussion - EXPERIMENTAL
NWS National Water Center - Tuscaloosa AL
300 PM CDT SAT AUG 29 2026

...Monsoonal moisture increases the risk for flooding in the Southwest into
the Intermountain West early next week...Flash flooding is possible for
portions of the Southeast Atlantic Coast through today...

.Southwest into the Intermountain West...
Flash flooding, especially in arroyos, dry washes, and urban areas, is
possible through early next week as monsoonal moisture expands across the
region. The flood threat will remain generally isolated today as daily
convective storms move through the area, but surging moisture tomorrow will
expand the overall flood risk. Going into the workweek, scattered
thunderstorms will bring heavy rainfall to portions of northern Arizona
into central Utah. Given the region`s complex terrain, this setup brings
the potential for locally significant flash flooding Monday into Tuesday.
The threat of flood impacts will continue through Tuesday, but due to
uncertainty in meteorological models, confidence in the exact flood extent
is low.

.Southeast Atlantic Coast...
Isolated flash flooding will be possible through this evening along coastal
Georgia through North Carolina as scattered thunderstorms move over the
region. Previous rounds of rainfall have left large areas of soil more
saturated, particularly along the Georgia and South Carolina coasts. Due to
this, localized storm cells with intense rainfall rates will have a greater
potential to overwhelm soil capacity, leading to enhanced surface runoff.

//GKendrick

Additional National Water Center products are available at
www.weather.gov/owp/operations


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