


Headwater Guidance
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
709 FOUS72 KALR 021504 FFHRAH HEADWATER GUIDANCE...RALEIGH CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 1059 AM EDT MON JUN 2 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 20250602 Z DH12/DC202506021459 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF : :IDENT 1HR 3HR 6HR 12HR 24HR :======= ==== ==== ==== ==== ==== BCMN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 BRSN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 HAWN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 HPNN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 NBCN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 NBUN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 NBWN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 NRWN7 1.9/ 2.2/ 2.3/ 2.7/ 3.2 OKRN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 RLHN7 1.9/ 2.4/ 2.7/ 3.3/ 4.6 RYAN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 SBCN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 SBHN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 SBPN7 1.8/ 2.2/ 2.3/ 2.6/ 3.2 : : 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 $$