Headwater Guidance
Issued by NWS Columbia, SC

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723
FOUS72 KALR 012028
FFHCAE
HEADWATER GUIDANCE...COLUMBIA CWA
NATIONAL WEATHER SERVICE
SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA
427 PM EDT FRI NOV 1 2024

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 20241101 Z DH18/DC202411012027 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF
:
:IDENT    1HR   3HR   6HR  12HR  24HR
:======= ====  ====  ====  ====  ====

BLRS1     3.0/  5.0/  5.4/  6.3/  7.6
MODS1     3.0/  4.8/  5.1/  5.7/  6.6
ORBS1     3.0/  4.5/  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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