


Headwater Guidance
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
615 FOUS72 KALR 051317 FFHRAH HEADWATER GUIDANCE...RALEIGH CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 912 AM EDT THU JUN 5 2025 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 20250605 Z DH12/DC202506051312 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF : :IDENT 1HR 3HR 6HR 12HR 24HR :======= ==== ==== ==== ==== ==== BCMN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 BRSN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 HAWN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 HPNN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 NBCN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 NBUN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 NBWN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 NRWN7 2.3/ 2.7/ 2.8/ 3.1/ 3.7 OKRN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 RLHN7 2.3/ 2.8/ 3.1/ 3.8/ 5.0 RYAN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 SBCN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 SBHN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 SBPN7 2.8/ 3.1/ 3.2/ 3.5/ 4.1 : : 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 $$