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AGUS74 KWCO 171517

HMDNWC



National Hydrologic Discussion - EXPERIMENTAL

NWS National Water Center - Tuscaloosa AL

1015 AM CDT SUN MAR 17 2024



.Synopsis...

Isolated flooding impacts possible across the Gulf Coast States...



.Discussion...



.Gulf Coast States...

Isolated flash and urban flooding impacts will be possible along the  

immediate Gulf Coast today as periods of heavy rainfall progress across the  

region. Any new flooding impacts will be completely dependent on the  

location of repeated heavy rainfall. With past rainfall totals (last 48  

hours) bringing roughly 1 - 3" to portions of southeast TX and LA, top  

soils in southern LA and coastal southeast TX are wet (60 - 70%, 0 - 10 cm  

RSM, NASA SPoRT) and streamflows are running normal to much above normal  

(USGS). Therefore, there will initially be some storage available for  

additional rainfall, which will help mitigate flooding impacts. Urban,  

poor-drainage, and low-lying areas will be particularly vulnerable to high  

rain rates, especially in areas where redevelopment could occur this  

afternoon. Rainfall today may delay recessions on some rivers where there  

is ongoing minor-to-moderate (southeast GA) river flooding, which will  

persist through mid week.



//Kirkpatrick







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