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Department of Commerce $ National Oceanic & Atmospheric Department of Commerce ▪ National Oceanic & Atmospheric Administration ▪ National Weather Service NATIONAL WEATHER SERVICE CENTRAL REGION SUPPLEMENT 02-2012 APPLICABLE TO NWSI 10-903 November 11, 2019 Operations and Services Hydrologic Services, NWSPD 10-9 Geographic Areas Of Responsibility, NWSI 10-903 DESCRIPTION OF CENTRAL REGION HYDROLOGIC SERVICE AREAS NOTICE: This publication is available at: http://www.nws.noaa.gov/directives/. OPR: W/CR1x2 (W. Pearson) Certified by: W/CR1 (M. Hudson) Type of Issuance: Routine SUMMARY OF REVISIONS: This supplement supersedes Central Region Supplement 02-2012 dated April 17, 2012 applicable to instruction 10-903. The following revisions were made to this supplement: 1. Removed the reference to maps of individual Hydrologic Service Areas. 2. Updated the Hydrologic Service Area description for Aberdeen, Chicago, Central Illinois, Grand Junction, Milwaukee and Rapid City. 3. Bulleted the list of responsibilities of other regions. ___(signed by)________________________ October 28, 2019 ____ Christopher S. Strager Date Director, Central Region NWS CR 02-2012 November 11, 2019 Description of Central Region Hydrologic Service Areas Table of Contents: Page 1. Purpose ................................................................................................................................2 2. Description of Hydrologic Service Areas .............................................................................2 1. Purpose: Each Weather Forecast Office (WFO) is responsible for a Hydrologic Service Area (HSA). These areas are typically the same as the County Warning and Forecast Areas (CWA) however, there are some differences. The purpose of this supplement is to provide detailed descriptions of the HSAs for each WFO and to cite where there are differences between the HSA and CWA. Each WFO is responsible for communicating these differences to emergency managers to ensure they know from which WFO they will receive river forecasts and warnings. 2. Description of Hydrologic Service Areas: In Central Region, most WFO HSAs align with their respective CWAs. Where rivers form the county line and border between two adjacent CWAs, that stretch of river is assigned to one of those WFO’s HSAs as noted in the HSA descriptions that follow. Where HSA and CWAs have minor differences, a reference to the other CWA is noted. The few minor differences that exist are justified hydrologically (e.g., a WFO has an entire river in their CWA except for a small portion at the mouth of the river, which is retained in their HSA). Forecast and warning products for points or reaches of a river are provided for the HSA while hydrologic products for counties or portions of counties are provided for the CWA. Aberdeen, SD (ABR) Rivers in or touching the following 26 South Dakota counties: Brown, Buffalo, Campbell, Clark, Codington, Corson, Day, Deuel, Dewey, Edmunds, Faulk, Grant, Hamlin, Hand, Hughes, Hyde, Jones, Lyman, Marshall, McPherson, Potter, Roberts, Spink, Stanley, Sully and Walworth. Rivers in or touching the following two Minnesota counties: Big Stone and Traverse. Excludes the White River flowing into Lake Francis Case/Missouri River in Jones and Lyman counties. That portion of the river is in Rapid City’s HSA. Bismarck, ND (BIS) Rivers in or touching the following 36 North Dakota counties: Adams, Billings, Bottineau, Bowman, Burke, Burleigh, Dickey, Divide, Dunn, Emmons, Foster, Golden Valley, Grant, Hettinger, Kidder, LaMoure, Logan, McHenry, McIntosh, McKenzie, McLean, Mercer, Morton, Mountrail, Oliver, Pierce, Renville, Rolette, Sheridan, Sioux, Slope, Stark, Stutsman, Ward, Wells, Williams. 2 NWS CR 02-2012 November 11, 2019 Central Illinois (Lincoln) (ILX) Rivers in or touching the following 35 Illinois counties: Cass, Champaign, Christian, Clark, Clay, Coles, Crawford, Cumberland, DeWitt, Douglas, Edgar, Effingham, Fulton, Jasper, Knox, Lawrence, Logan, Macon, Mason, Marshall, McLean, Menard, Morgan, Moultrie, Peoria, Piatt, Richland, Sangamon, Schuyler, Scott, Shelby, Stark, Tazewell, Vermilion and Woodford. Includes: • The Illinois River in Putnam & Bureau counties from Hennepin, IL, downstream to Marshall county line. • The Vermilion River in Vermillion County, Indiana. Excludes: • The La Moine River along the Brown/Schuyler county line, which is in St. Louis’ HSA. • The Illinois River along the Brown/Cass, Brown/Morgan, Morgan/Pike and Pike/Scott county line, which is in St. Louis’ HSA. • The Wabash River along the Illinois/Indiana state line, which is in Indianapolis’ HSA. Cheyenne, WY (CYS) Rivers in or touching the following 7 Wyoming counties: Albany, Carbon, Converse, Goshen, Laramie, Niobrara and Platte. Rivers in or touching the following 8 Nebraska counties: Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill, Scotts Bluff and Sioux. Chicago, IL (LOT) Rivers in or touching the following 18 Illinois counties: Boone, Cook, De Kalb, Du Page, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, Lake, La Salle, Lee, Livingston, McHenry, Ogle, Will and Winnebago. Rivers in or touching the following 5 Indiana counties: Benton, Jasper, Lake, Newton and Porter. Includes the Illinois River in Putnam & Bureau counties from Hennepin, IL, upstream to La Salle county line. Excludes: • The Fox River upstream of Illinois State Route 173, which is in Milwaukee’s HSA. • The Rock River upstream of Prairie Hill Road, which is in Milwaukee’s HSA. • The Sugar River upstream of the confluence with the Pecatonica River, which is in Milwaukee's HSA. Boulder/Denver, CO (BOU) Rivers in or touching the following 22 Colorado counties: Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Grand, Jackson, Jefferson, Larimer, Lincoln, Logan, Morgan, Park, Phillips, Sedgwick, Summit, Weld and Washington. 3 NWS CR 02-2012 November 11, 2019 Des Moines, IA (DMX) Rivers in or touching the following 51 Iowa counties: Adair, Adams, Appanoose, Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll, Cass, Cerro Gordo, Clarke, Crawford, Dallas, Davis, Decatur, Emmet, Franklin, Greene, Grundy, Guthrie, Hamilton, Hancock, Hardin, Humboldt, Jasper, Kossuth, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Palo, Alto, Pocahontas, Polk, Poweshiek, Ringgold, Sac, Story, Tama, Taylor, Union, Wapello, Warren, Wayne, Webster, Winnebago, Worth and Wright. Includes the Shell Rock River in northwest and southern Floyd County, which is in La Crosse’s CWA. Detroit, MI (DTX) Rivers in or touching the following 17 Michigan counties: Bay, Genesee, Huron, Lapeer, Lenawee, Livingston, Macomb, Midland, Monroe, Oakland, Saginaw, Sanilac, Shiawassee, St. Clair, Tuscola, Washtenaw and Wayne. Dodge City, KS (DCC) Rivers in or touching the following 27 Kansas counties: Barber, Clark, Comanche, Edwards, Ellis, Finney, Ford, Grant, Gray, Hamilton, Haskell, Hodgeman, Kearny, Kiowa, Lane, Meade, Morton, Ness, Pawnee, Pratt, Rush, Scott, Seward, Stafford, Stanton, Stevens and Trego. Duluth, MN (DLH) Rivers in or touching the following 10 Minnesota counties: Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca, Koochiching, Lake, Pine and St. Louis. Rivers in or touching the following 8 Wisconsin counties: Ashland, Bayfield, Burnett, Douglas, Iron, Price, Sawyer and Washburn. Includes the Montreal River along the Wisconsin/Michigan state line. Eastern North Dakota (Grand Forks) (FGF) Rivers in or touching the following 17 North Dakota counties: Barnes, Benson, Cass, Cavalier, Eddy, Grand Forks, Griggs, Nelson, Pembina, Ramsey, Ransom, Richland, Sargent, Steele, Towner, Traill and Walsh. Rivers in or touching the following 18 Minnesota counties: Becker, Beltrami, Clay, Clearwater, Grant, Hubbard, Kittson, Lake of the Woods, Mahnomen, Marshall, Norman, Otter Tail, Pennington, Polk, Red Lake, Roseau, Wadena and Wilkin. Goodland, KS (GLD) Rivers in or touching the following 13 Kansas counties: Cheyenne, Decatur, Gove, Graham, Greeley, Logan, Norton, Rawlins, Sheridan, Sherman, Thomas, Wallace and Wichita. Rivers in or touching the following 3 Nebraska counties: Dundy, Hitchcock and Red Willow. Rivers in or touching the following 3 Colorado counties: Cheyenne, Kit Carson and Yuma. 4 NWS CR 02-2012 November 11, 2019 Grand Junction, CO (GJT) Rivers in or touching the following 18 Colorado counties: Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale, La Plata, Mesa, Moffat, Montezuma, Montrose, Ouray, Pitkin, Rio Blanco, Routt, San Juan and San Miguel. Rivers in or touching the following 4 Utah counties: Daggett, Grand, San Juan and Uintah. Excludes: • Rivers in or touching the Glen Canyon National Recreation Area of San Juan County, UT. That portion of the river is in Salt Lake City’s HSA of Western Region. • The Green River in or touching the City of Green River, UT, which is in Salt Lake City’s HSA. Grand Rapids, MI (GRR) Rivers in or touching the following 23 Michigan counties: Allegan, Barry, Calhoun, Clare, Clinton, Eaton, Gratiot, Ingham, Ionia, Isabella, Jackson, Kalamazoo, Kent, Lake, Mason, Mecosta, Montcalm, Muskegon, Newaygo, Oceana, Osceola, Ottawa and Van Buren. Green Bay, WI (GRB) Rivers in or touching the following 22 Wisconsin counties: Brown, Calumet, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Menominee, Oconto, Oneida, Outagamie, Portage, Shawano, Vilas, Waupaca, Waushara, Winnebago and Wood. Includes the Brule and Menominee Rivers along the Michigan/Wisconsin state line. Hastings, NE (GID) Rivers in or touching the following 24 Nebraska counties: Adams, Buffalo, Clay,
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