


Headwater Guidance
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
461 FOUS72 KALR 070124 FFHFFC HEADWATER GUIDANCE...ATLANTA CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 923 PM EDT FRI JUN 6 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 DH01/DC202506070123 /DUE/PPHCF/PPTCF/PPQCF : :IDENT 1HR 3HR 6HR :======= ==== ==== ==== AANG1 2.8/ 3.3/ 3.4 ARAG1 3.0/ 3.4/ 3.7 CNNG1 3.0/ 3.6/ 4.1 CTWG1 2.9/ 3.3/ 3.5 HDCG1 2.9/ 3.3/ 3.5 MARG1 2.8/ 3.3/ 3.4 RMTG1 3.0/ 3.4/ 3.7 : : 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 $$