Headwater Guidance
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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643 FOUS72 KALR 100115 FFHFFC FOUS72 KALR 100115 HEADWATER GUIDANCE...ATLANTA CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 909 PM EDT FRI MAY 9 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 20250510 Z DH00/DC202505100109 /DUE/PPHCF/PPTCF/PPQCF : :IDENT 1HR 3HR 6HR :======= ==== ==== ==== AANG1 2.3/ 2.8/ 2.9 ARAG1 2.5/ 3.0/ 3.3 CNNG1 2.4/ 2.9/ 3.4 CTWG1 2.4/ 2.9/ 3.2 HDCG1 2.3/ 2.8/ 3.1 MARG1 2.3/ 2.8/ 2.9 RMTG1 2.5/ 3.0/ 3.3 : : 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