Headwater Guidance
Issued by NWS
Issued by NWS
768 FOUS71 KRHA 181351 FFHVA2 HEADWATER STATEMENT FOR THE POTOMAC AND JAMES BASINS MIDDLE ATLANTIC RIVER FORECAST CENTER NATIONAL WEATHER SERVICE STATE COLLEGE PA 930 AM EDT TUE AUG 18 2026 APPROXIMATE 1/3/6/12-HR BASIN AVERAGED RAINFALL (INCHES) REQUIRED TO CAUSE MINOR, MODERATE, AND MAJOR FLOODING AT THE INDICATED HEADWATER LOCATIONS. .B RHA 260818 Z DH12/DC2608181330/DUE/PPHCF/PPTCF/PPQCF/PPKCF : :IDENT 1HR 3HR 6HR 12HR HEADWATER NAME :======= ==== ==== ==== ==== ==================== : : NWS STERLING SERVICE AREA... : POTOMAC BASIN... : North Branch Potomac River... KITM2 1.7/ 1.9/ 2.3/ 3.0 :Kitzmiller (9ft) :KITM2md 2.5/ 2.8/ 3.6/ 4.9 Kitzmiller (11) :KITM2mj 3.9/ 4.4/ 5.7/ 8.0 Kitzmiller (13) : Georges Creek... WSTM2 1.1/ 1.3/ 1.5/ 1.8 :Westernport (8ft) :WSTM2md 1.7/ 2.0/ 2.3/ 2.7 Westernport (10) :WSTM2mj 2.3/ 2.7/ 3.1/ 3.7 Westernport (12) : South Branch Potomac River... FKLW2 1.6/ 1.8/ 2.0/ 2.6 :Franklin (7ft) :FKLW2md 1.8/ 2.0/ 2.3/ 3.2 Franklin (9) :FKLW2mj 2.0/ 2.3/ 2.6/ 3.8 Franklin (11) : Opequon Creek... MBGW2 2.2/ 2.9/ 3.3/ 4.4 :Martinsburg (10ft) :MBGW2md 2.3/ 3.1/ 3.7/ 5.2 Martinsburg (12.5) :MBGW2mj 2.7/ 3.5/ 4.4/ 6.1 Martinsburg (15) : South River... WAYV2 3.1/ 3.9/ 5.2/ 6.7 :Waynesboro (9.5ft) :WAYV2md 3.3/ 4.1/ 5.7/ 7.4 Waynesboro (11) :WAYV2mj 3.6/ 4.6/ 6.5/ 8.0 Waynesboro (13) : North Fork Shenandoah River... COOV2 2.0/ 2.2/ 3.0/ 3.7 :Cootes Store (15ft) :COOV2md 2.4/ 2.7/ 3.8/ 4.6 Cootes Store (18) :COOV2mj 2.9/ 3.2/ 4.7/ 5.8 Cootes Store (21) : Antietam Creek... SACM2 1.7/ 2.4/ 3.2/ 5.0 :Sharpsburg (8ft) :SACM2md 1.9/ 2.6/ 3.9/ 5.5 Sharpsburg (10) :SACM2mj 2.0/ 2.9/ 4.8/ 6.3 Sharpsburg (12) : Seneca Creek... DAWM2 2.2/ 2.4/ 2.8/ 3.4 :Dawsonville (7.5ft) :DAWM2md 2.8/ 3.2/ 4.5/ 5.7 Dawsonville (11) :DAWM2mj 4.8/ 5.6/ 7.4/ 8.0 Dawsonville (16) : : NWS BLACKSBURG SERVICE AREA... : Maury River... BVSV2 4.2/ 6.0/ 7.4/ 8.0 :Buena Vista (17ft) :BVSV2cs 3.8/ 5.1/ 6.6/ 8.0 Buena Vista (13) :BVSV2md 4.4/ 6.3/ 7.4/ 8.0 Buena Vista (19) :BVSV2mj 4.6/ 6.6/ 7.4/ 8.0 Buena Vista (21) .END : :=============================================================== : EXPERIMENTAL NON-FCST POINT RAW MODEL OUTPUT : NO MANUAL QC OR ADJUSTMENTS APPLIED...USE WITH CAUTION :=============================================================== : : NWS STERLING SERVICE AREA... : Rock Creek at Sherrill Drive., Washington DC .B RHA 260818 Z DH12/DC2608181330/DUE/PPHCF/PPTCF/PPQCF/PPKCF :GageID 1hr 3hr 6hr 12hr rainfall for indicated stages RCKD2 1.7/ 1.9/ 2.0/ 2.5 :Washington, DC (7ft) :RCKD2md 2.4/ 2.6/ 2.9/ 3.5 Washington, DC (10) :RCKD2mj 3.1/ 3.5/ 3.8/ 4.7 Washington, DC (12) .END : Model-simulated 3-hourly stage forecasts including QPF... .E RCKD2 20260818 DC2608181350/DH15/HGIFX/DIH3/ .E1 2.0/2.0/2.0/2.0/2.0/2.0/2.0/2.0 $$ NNNN