000  
FOUS61 KRHA 190150  
FFGMD  
COUNTY FLASH FLOOD GUIDANCE FOR MARYLAND AND DC  
MIDDLE ATLANTIC RIVER FORECAST CENTER  
NATIONAL WEATHER SERVICE STATE COLLEGE PA  
932 PM EDT WED JUL 18 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 180719 Z DH00/DC1807190132 /DUE/PPHCF/PPTCF/PPQCF/PPKCF  
:  
:IDENT 1HR 3HR 6HR 12HR ZONE NAME  
:======= ==== ==== ==== ==== ====================  
:  
: NWS STERLING SERVICE AREA...  
DCZ001 1.4/ 2.2/ 2.4/ 2.6 :WASHINGTON DC  
MDZ501 2.0/ 2.8/ 2.9/ 3.1 :EXTREME W. ALLEGANY CO.  
MDZ502 2.3/ 3.3/ 3.4/ 3.6 :CENTRAL AND E. ALLEGANY CO.  
MDZ014 2.7/ 4.0/ 4.5/ 4.9 :ANNE ARUNDEL CO.  
MDZ006 2.9/ 4.1/ 4.2/ 4.4 :N. BALTIMORE CO.  
MDZ011 2.1/ 3.0/ 3.2/ 3.4 :S. BALTIMORE CO.  
MDZ018 2.9/ 4.3/ 4.7/ 4.9 :CALVERT CO.  
MDZ005 2.8/ 4.0/ 4.1/ 4.3 :CARROLL CO.  
MDZ016 3.0/ 4.5/ 4.9/ 5.2 :CHARLES CO.  
MDZ004 2.8/ 3.9/ 4.1/ 4.2 :FREDERICK CO.  
MDZ507 2.2/ 3.2/ 3.4/ 3.7 :NW. HARFORD CO.  
MDZ508 2.6/ 3.8/ 4.1/ 4.3 :SE. HARFORD CO.  
MDZ505 2.5/ 3.6/ 3.8/ 4.0 :NW. HOWARD CO.  
MDZ506 2.5/ 3.6/ 3.7/ 4.0 :CENTRAL AND SE. HOWARD CO.  
MDZ503 2.7/ 3.8/ 4.0/ 4.2 :NW. MONTGOMERY CO.  
MDZ504 2.3/ 3.2/ 3.3/ 3.6 :CENTRAL AND SE. MONTGOMERY CO.  
MDZ013 2.8/ 4.2/ 4.8/ 5.1 :PRINCE GEORGES CO.  
MDZ017 2.9/ 4.3/ 4.4/ 4.6 :ST. MARYS CO.  
MDZ003 2.5/ 3.6/ 3.8/ 4.0 :WASHINGTON CO.  
:  
: NWS MT. HOLLY SERVICE AREA...  
MDZ020 3.0/ 4.4/ 4.6/ 4.8 :CAROLINE CO.  
MDZ008 2.9/ 4.3/ 4.8/ 5.1 :CECIL CO.  
MDZ012 2.9/ 4.3/ 4.8/ 5.1 :KENT CO.  
MDZ015 2.8/ 4.2/ 4.4/ 4.7 :QUEEN ANNES CO.  
MDZ019 2.7/ 4.1/ 4.3/ 4.5 :TALBOT CO.  
:  
: NWS WAKEFIELD SERVICE AREA...  
MDZ021 2.6/ 3.9/ 4.1/ 4.3 :DORCHESTER CO.  
MDZ023 3.0/ 4.5/ 5.1/ 5.3 :SOMERSET CO.  
MDZ022 2.9/ 4.4/ 4.6/ 4.8 :WICOMICO CO.  
MDZ024 3.0/ 4.5/ 5.1/ 5.4 :INLAND WORCESTER  
MDZ025 3.0/ 4.5/ 5.3/ 5.6 :MARYLAND BEACHES  
.END  

 
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