Headwater Guidance
Issued by NWS Northeast RFC
Issued by NWS Northeast RFC
577 FOUS71 KTAR 231538 FFHTAR HEADWATER FLASH FLOOD GUIDANCE NATIONAL WEATHER SERVICE NORTHEAST RIVER FORECAST CENTER... NORTON MA 1130 AM EDT SAT AUG 23 2025 : WATERSHED AREA AVERAGE RAINFALL IN INCHES REQUIRED : TO EXCEED FLOOD STAGE : HSA - HYDROLOGIC SERVICE AREA .B TAR 250823 Z DH12/DC2508231530 /DUE/PPHCF/PPTCF/PPQCF/PPKCF/PPDCF : :=========================================================== : CARIBOU HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== MASM1 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :MASARDIS, ME DOVM1 3.0/ 4.5/ 5.3/ 7.0/ 8.0 :DOVER, ME WENM1 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :WEST ENFIELD, ME :=========================================================== : GRAY HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== NANM1 3.0/ 4.5/ 5.5/ 7.0/ 8.0 :NORTH ANSON, ME SKOM1 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :SKOWHEGAN, ME ROXM1 2.8/ 3.4/ 4.8/ 6.5/ 8.0 :ROXBURY, ME CNWN3 3.0/ 4.1/ 4.9/ 6.3/ 7.8 :CONWAY, NH WOON3 3.0/ 3.0/ 3.2/ 3.8/ 5.0 :WOODSTOCK, NH RUMN3 3.0/ 4.5/ 5.2/ 5.8/ 7.0 :RUMNEY, NH BRSN3 3.0/ 4.5/ 5.8/ 6.5/ 7.0 :BRISTOL, NH DAVN3 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :DAVISVILLE, NH NSTN3 3.0/ 4.5/ 5.7/ 7.0/ 8.0 :N STRATFORD, NH BETN3 3.0/ 4.1/ 4.3/ 5.0/ 6.3 :BETHLEHEM JCT, NH PTRN3 3.0/ 4.1/ 4.9/ 5.9/ 7.2 :PETERBORO, NH GFFN3 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :GOFFSTOWN, NH :=========================================================== : BOSTON HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== FBGM3 3.0/ 3.7/ 4.8/ 6.7/ 8.0 :FITCHBURG, MA WGTM3 3.0/ 4.2/ 5.2/ 6.8/ 8.0 :WEST GROTON, MA MAYM3 2.9/ 3.0/ 4.5/ 7.0/ 8.0 :MAYNARD, MA SAXM3 1.7/ 3.6/ 5.5/ 7.0/ 8.0 :SAXONVILLE, MA WLMM3 3.0/ 4.1/ 5.4/ 7.0/ 8.0 :WILMINGTON, MA NRWM3 3.0/ 4.4/ 6.0/ 7.0/ 8.0 :NORWOOD, MA DOVM3 3.0/ 4.4/ 4.7/ 7.0/ 8.0 :DOVER, MA NBRM3 3.0/ 3.7/ 4.7/ 6.8/ 8.0 :NORTHBRIDGE, MA WLMC3 3.0/ 4.5/ 5.7/ 6.5/ 8.0 :WILLIMANTIC, CT WSFM3 3.0/ 4.2/ 5.5/ 7.0/ 8.0 :WESTFIELD, MA UNVC3 2.2/ 2.5/ 3.9/ 6.7/ 8.0 :UNIONVILLE, CT :=========================================================== : NEW YORK HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== GRDN6 3.0/ 3.7/ 4.5/ 5.4/ 6.7 :GARDINER, NY YTCC3 2.5/ 3.2/ 4.1/ 5.1/ 6.4 :YANTIC, CT :=========================================================== : BURLINGTON HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== CZRN6 3.0/ 4.5/ 5.8/ 7.0/ 8.0 :PERRY MILLS, NY ASFN6 2.5/ 2.6/ 2.7/ 3.2/ 3.8 :AUSABLE FORKS, NY CENV1 3.0/ 4.1/ 4.2/ 4.3/ 5.3 :CENTER RUTLAND, VT MONV1 2.9/ 3.2/ 4.7/ 5.4/ 7.6 :MONTPELIER, VT MOOV1 2.8/ 2.9/ 3.2/ 3.6/ 4.7 :MORETOWN, VT JONV1 3.0/ 3.9/ 4.3/ 4.6/ 5.9 :JOHNSON, VT NTYV1 2.5/ 2.9/ 3.9/ 5.2/ 6.6 :NORTH TROY, VT PASV1 3.0/ 4.3/ 5.3/ 6.6/ 8.0 :PASSUMPSIC, VT WLRV1 3.0/ 3.8/ 4.2/ 5.4/ 6.9 :WELLS RIVER, VT WEHV1 3.0/ 3.7/ 4.1/ 4.5/ 5.3 :W HARTFORD, VT :=========================================================== : ALBANY HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== NWCN6 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :NEWCOMB, NY HOPN6 3.0/ 3.8/ 4.5/ 5.4/ 7.0 :HOPE, NY GVVN6 2.9/ 3.2/ 3.9/ 4.8/ 6.6 :MID. GRANVILLE, NY BTTN6 3.0/ 4.2/ 5.2/ 6.5/ 8.0 :BATTENVILLE, NY WILM3 2.0/ 2.6/ 3.4/ 4.5/ 6.0 :WILLIAMSTOWN, MA BNTV1 2.4/ 2.8/ 3.7/ 4.9/ 6.3 :N. BENNINGTON, VT LTLN6 2.6/ 3.7/ 4.4/ 5.1/ 6.3 :LITTLE FALLS, NY PTVN6 2.6/ 3.2/ 3.9/ 4.8/ 6.9 :PRATTSVILLE, NY MTRN6 2.6/ 3.1/ 4.3/ 5.6/ 8.0 :COLD BROOK, NY ROSN6 2.1/ 3.3/ 4.0/ 4.8/ 6.3 :ROSENDALE, NY WAPN6 2.1/ 2.8/ 3.6/ 4.6/ 6.1 :WAPPINGER FALLS, NY GTBM3 3.0/ 4.5/ 6.0/ 7.0/ 8.0 :GT. BARRINGTON, MA TENN6 3.0/ 4.5/ 5.7/ 7.0/ 8.0 :GAYLORDSVILLE, CT GAYC3 2.7/ 3.2/ 4.2/ 5.2/ 6.7 :GAYLORDSVILLE, CT :=========================================================== : BINGHAMTON HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== FLLN6 2.5/ 3.1/ 4.0/ 5.2/ 6.7 :ITHACA, NY ONDN6 2.2/ 2.3/ 3.0/ 5.0/ 6.9 :SYRACUSE, NY NEIN6 1.8/ 2.3/ 3.0/ 3.8/ 5.2 :ONEIDA, NY :=========================================================== : BUFFALO HSA :IDENT 1HR 3HR 6HR 12HR 24HR HEADWATER NAME :======= ==== ==== ==== ==== ==== ==================== GOWN6 1.9/ 2.5/ 3.0/ 3.9/ 5.1 :GOWANDA, NY GDVN6 1.9/ 2.2/ 2.8/ 3.6/ 4.7 :GARDENVILLE, NY LCSN6 1.7/ 2.0/ 2.6/ 3.5/ 4.6 :LANCASTER, NY EBZN6 1.4/ 1.7/ 2.0/ 2.6/ 3.5 :EBENEZER, NY WILN6 2.0/ 2.2/ 2.3/ 2.9/ 3.5 :WILLIAMSVILLE, NY BTVN6 3.0/ 3.3/ 4.2/ 5.2/ 6.5 :BATAVIA, NY WLLN6 2.2/ 2.6/ 2.9/ 3.5/ 4.4 :WELLSVILLE, NY GRBN6 2.4/ 2.9/ 4.0/ 4.9/ 6.5 :GARBUTT, NY CHRN6 3.0/ 3.6/ 4.4/ 5.5/ 7.2 :CHURCHVILLE, NY BOON6 3.0/ 3.5/ 4.2/ 5.2/ 6.9 :BOONVILLE, NY .END $$ NYC WATER SUPPLY FORECAST ESTIMATED RUNOFF IN MILLIONS OF GALLONS RESULTING FROM THE FOLLOWING 6-HOUR PRECIPITATION AMOUNTS IN INCHES : Drainage areas in square miles are: GILBOA - 315. ASHOKAN - 257. RONDOUT - 95. W.BRANCH - 43. CROTON - 335. KENSICO - 13. : .B TAR 250823 Z DH12/DC2508231536 /DUE/QMXC1/QMXC2/QMXC3/QMXC4 .B1 /QMXC5/QMXC6 : : RAINFALL :IDENT 0.5 1.0 1.5 2.0 3.0 5.0 LOCATION :======= ===== ====== ====== ====== ======= ======= ================ RONDOUT 12/ 71/ 174/ 302/ 664/ 3549/ : RONDOUT RESERVOIR CROTON 168/ 411/ 745/ 1113/ 1890/ 6016/ : NEW CROTON DAM W.BRANC 11/ 28/ 52/ 82/ 147/ 339/ : W.BRANCH RESERVOIR KENSICO 17/ 41/ 140/ 250/ 473/ 922/ : KENSICO GILBOA 131/ 317/ 700/ 1139/ 4014/ 14110/ : SCHOHARIE RESERVOIR ASHOKAN 627/ 1296/ 2026/ 2785/ 4336/ 10801/ : ASHOKAN RESERVOIR .END $$