568
AGUS74 KWCO 041510
HMDNWC

National Hydrologic Discussion - EXPERIMENTAL
NWS National Water Center - Tuscaloosa AL
1015 AM CDT THU SEP 4 2025

.Synopsis...
Flash and urban flooding possible across the Southwest... Elevated flows
and isolated river flooding in Alaska... Isolated flash flooding possible
in South Texas...

.Southwest...
Flash and urban flooding is possible through this weekend due to monsoonal
moisture generating periods of moderate to heavy rainfall. While widespread
flooding is not expected, rapid rises on small streams in steep terrain, as
well as in arroyos, slot canyons, and normally dry washes, remain possible
where heavy rainfall occurs. Debris flows are also possible near recently
burned areas.

.Alaska...
Streams and rivers in the Interior and western Brooks Range are still
running high from glacial melt and recent rainfall. Water levels will
gradually improve but remain elevated, with additional rainfall through
this week and next week likely to slow recessions.

.South Texas...
Tropical moisture may bring the potential for isolated flash flooding
across portions of southern Texas on days 4-5 (Sun-Mon). Given the timing
of the event, uncertainty still remains in rainfall totals and placement.

//TMK





$$