Headwater Guidance
Issued by NWS Wilmington, NC

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133
FOUS72 KALR 291833
FFHILM
HEADWATER GUIDANCE...WILMINGTON CWA
NATIONAL WEATHER SERVICE
SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA
232 PM EDT SAT AUG 29 2026

INCHES OF RAINFALL FOR SPECIFIED DURATIONS REQUIRED TO PRODUCE
FLASH FLOODING IN HEADWATERS.  LOWER AMOUNTS MAY CAUSE
FLASH FLOODING IN URBAN OR MOUNTAINOUS AREAS.

.B ALR 20260829 Z DH18/DC202608291832 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF
:
:IDENT    1HR   3HR   6HR  12HR  24HR
:======= ====  ====  ====  ====  ====

BCRS1     3.0/  5.0/  6.0/  7.0/  8.0
:
:  TO USE HEADWATER ADVISORY TABLES TAKE THE THREE HOUR VALUE ABOVE FOR
:  THAT LOCATION AND USE THE FOLLOWING RELATIONS...
:      TABLE 1 /   0 TO 2.4 IN        TABLE 4 / 4.1 TO 4.5 IN
:            2 / 2.5 TO 3.3 IN              5 / 4.6 TO 4.9 IN
:            3 / 3.4 TO 4.0 IN              6 / 5.0 IN
:
.END
$$
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