203 FOUS61 KRHA 111350 FFGMD COUNTY FLASH FLOOD GUIDANCE FOR MARYLAND AND DC MIDDLE ATLANTIC RIVER FORECAST CENTER NATIONAL WEATHER SERVICE STATE COLLEGE PA 932 AM EDT THU OCT 11 2018 APPROXIMATE 1/3/6/12-HR RAINFALL (INCHES) NEEDED TO BEGIN SMALL STREAM FLOODING. THIS GUIDANCE IS NOT APPLICABLE FOR URBAN, BASEMENT, OR OTHER FLOODING NOT ASSOCIATED WITH A STREAM. .B RHA 181011 Z DH12/DC1810111332 /DUE/PPHCF/PPTCF/PPQCF/PPKCF : :IDENT 1HR 3HR 6HR 12HR ZONE NAME :======= ==== ==== ==== ==== ==================== : : NWS STERLING SERVICE AREA... DCZ001 1.1/ 1.8/ 1.9/ 2.1 :Washington DC MDZ501 0.8/ 1.4/ 1.5/ 1.6 :Extreme W. Allegany Co. MDZ502 1.3/ 2.1/ 2.2/ 2.3 :Central and E. Allegany Co. MDZ014 2.4/ 3.5/ 3.8/ 4.0 :Anne Arundel Co. MDZ006 1.9/ 2.8/ 2.9/ 3.1 :N. Baltimore Co. MDZ011 1.5/ 2.3/ 2.4/ 2.6 :S. Baltimore Co. MDZ018 2.6/ 4.0/ 4.1/ 4.4 :Calvert Co. MDZ005 1.8/ 2.7/ 2.8/ 3.0 :Carroll Co. MDZ016 2.6/ 4.0/ 4.2/ 4.4 :Charles Co. MDZ004 1.8/ 2.7/ 2.8/ 3.0 :Frederick Co. MDZ507 2.0/ 2.8/ 3.0/ 3.2 :NW. Harford Co. MDZ508 2.3/ 3.5/ 3.7/ 4.0 :SE. Harford Co. MDZ505 1.8/ 2.7/ 2.8/ 3.0 :NW. Howard Co. MDZ506 1.6/ 2.5/ 2.6/ 2.8 :Central and SE. Howard Co. MDZ503 2.0/ 2.9/ 3.0/ 3.2 :NW. Montgomery Co. MDZ504 1.7/ 2.5/ 2.6/ 2.8 :Central and SE. Montgomery Co. MDZ013 2.4/ 3.6/ 3.7/ 4.0 :Prince Georges Co. MDZ017 2.7/ 4.0/ 4.1/ 4.3 :St. Marys Co. MDZ003 1.7/ 2.6/ 2.7/ 2.8 :Washington Co. : : NWS MT. HOLLY SERVICE AREA... MDZ020 2.7/ 4.0/ 4.2/ 4.4 :Caroline Co. MDZ008 2.7/ 4.0/ 4.2/ 4.4 :Cecil Co. MDZ012 2.9/ 4.2/ 4.4/ 4.6 :Kent Co. MDZ015 2.5/ 3.8/ 4.0/ 4.2 :Queen Annes Co. MDZ019 2.5/ 3.8/ 3.9/ 4.1 :Talbot Co. : : NWS WAKEFIELD SERVICE AREA... MDZ021 2.7/ 4.1/ 4.2/ 4.4 :Dorchester Co. MDZ023 3.0/ 4.4/ 4.6/ 4.9 :Somerset Co. MDZ022 2.6/ 3.9/ 4.1/ 4.3 :Wicomico Co. MDZ024 3.0/ 4.5/ 4.9/ 5.1 :Inland Worcester MDZ025 3.0/ 4.5/ 5.1/ 5.4 :Maryland Beaches .END $$ NNNN