Headwater Guidance
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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138 FOUS72 KALR 281848 FFHFFC FOUS72 KALR 281848 HEADWATER GUIDANCE...ATLANTA CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 247 PM EDT TUE JUL 28 2026 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 20260728 Z DH18/DC202607281847 /DUE/PPHCF/PPTCF/PPQCF : :IDENT 1HR 3HR 6HR :======= ==== ==== ==== AANG1 3.0/ 3.5/ 3.7 ARAG1 3.0/ 4.1/ 5.0 CNNG1 3.0/ 3.9/ 4.8 CTWG1 3.0/ 4.0/ 4.8 HDCG1 3.0/ 3.8/ 4.4 MARG1 3.0/ 3.5/ 3.7 RMTG1 3.0/ 4.1/ 5.0 : : 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 $$ S.E.R.F.C. 770-486-0028 or 770-282-2112 Regular Hours 6am-10pm Eastern Time After Hours Please Follow Callback Instructions