Headwater Guidance
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
476 FOUS72 KALR 180047 FFHSJU HEADWATER GUIDANCE...SAN JUAN CWA NATIONAL WEATHER SERVICE SOUTHEAST RIVER FORECAST CENTER...ATLANTA GA 739 PM EST SUN NOV 17 2024 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 20241118 Z DH00/DC202411180039 /DUE/PPHCF/PPTCF/PPQCF : :IDENT 1HR 3HR 6HR :======= ==== ==== ==== AREP4 1.6/ 2.0/ 2.6 CAGP4 1.3/ 1.7/ 2.2 CIAP4 1.5/ 1.8/ 2.3 COAP4 1.6/ 2.0/ 2.7 COMP4 1.2/ 1.5/ 2.0 GURP4 1.3/ 1.7/ 2.2 HORP4 2.0/ 2.3/ 2.7 MANP4 1.2/ 1.5/ 2.0 MOCP4 1.2/ 1.6/ 2.2 RPOP4 1.1/ 1.4/ 1.9 SEBP4 1.5/ 1.8/ 2.3 TOAP4 1.3/ 1.6/ 2.1 VGBP4 1.4/ 1.7/ 2.2 : : 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 $$ S.E.R.F.C. 770-486-0028 or 770-282-2112 Regular Hours 6am-10pm Eastern Time After Hours Please Follow Callback Instructions