


Headwater Guidance
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
229 FOUS72 KALR 071338 FFHRAH HEADWATER GUIDANCE...RALEIGH CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 936 AM EDT SAT JUN 7 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 20250607 Z DH12/DC202506071336 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF : :IDENT 1HR 3HR 6HR 12HR 24HR :======= ==== ==== ==== ==== ==== BCMN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 BRSN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 HAWN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 HPNN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 NBCN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 NBUN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 NBWN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 NRWN7 2.5/ 2.9/ 3.0/ 3.3/ 4.0 OKRN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 RLHN7 2.5/ 3.0/ 3.3/ 4.0/ 5.3 RYAN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 SBCN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 SBHN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 SBPN7 3.0/ 3.4/ 3.5/ 3.8/ 4.4 : : 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 $$