Our Area of Responsibility (CWA)

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The Quad Cities NWS office is responsible for a County Warning Area (CWA) which coincides with its Hydrologic Service Area (HSA).  The Quad Cities CWA consists of 36 counties in eastern Iowa, northwest and west-central Illinois, and extreme northeast Missouri–21 in Iowa, 13 in Illinois, and 2 in Missouri–or a total area of nearly 20,000 square miles. Over 1.4 million people live in this region.  In this area the Quad Cities NWS office is responsible for providing warnings and forecasts.  Routine forecasts include the short-term forecast (1 to 6 hours), the 7-day forecast, and the Hazardous Weather Outlook.  Advisories, warnings, and other statements are issued on an as-needed basis, depending on the weather conditions.

Every county across the country has a unique FIPS code and zone code. The FIPS code is designated by the state and is used for dissemination of warnings and for programming the SAME Tone-Alert Weather Radios.  The zone code is defined by the National Weather Service and is used for disseminating forecasts and other less urgent products and for selecting NOAA Weather Wire products.  

County FIPS Code Zone Code
Benton 019011 IAZ051
Buchanan 019019 IAZ040
Cedar 019031 IAZ065
Clinton 019045 IAZ066
Delaware 019055 IAZ041
Des Moines 019057 IAZ089
Dubuque 019061 IAZ042
Henry 019087 IAZ088
Iowa 019095 IAZ063
Jackson 019097 IAZ054
Jefferson 019101 IAZ087
Johnson 019103 IAZ064
Jones 019105 IAZ053
Keokuk 019107 IAZ076
Lee 019111 IAZ099
Linn 019113 IAZ052
Louisa 019115 IAZ078
Muscatine 019139 IAZ067
Scott 019163 IAZ068
Van Buren 019177 IAZ098
Washington 019183 IAZ077
County FIPS Code Zone Code
Bureau 017011 ILZ017
Carroll 017015 ILZ007
Hancock 017067 ILZ034
Henderson 017071 ILZ025
Henry 017073 ILZ016
Jo Daviess 017085 ILZ001
McDonough 017109 ILZ035
Mercer 017131 ILZ024
Putnam 017155 ILZ018
Rock Island 017161 ILZ015
Stephenson 017177 ILZ002
Warren 017187 ILZ026
Whiteside 017195 ILZ009
County FIPS Code Zone Code
Clark  029045 MOZ010
Scotland  029199 MOZ009


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