The Arkansas-White-Red Region hydrologic region spans Arkansas, Colorado, Kansas, Louisiana, Missouri, New Mexico, Oklahoma, Texas and is divided into 173 HUC8 sub-basins. Conditions are the US Drought Monitor's weekly area coverage and the day-of-year streamflow percentiles of the USGS gauges inside each sub-basin, as of 2026-09-07.
| Sub-basin | Assets | Avg WIS | Drought | Gauges low | Flow pct | Health |
|---|---|---|---|---|---|---|
| Lower Canadian-Deer 11090201 · OK, TX | 1,985 | 54.7 | Exceptional (484) | — | — | 29 |
| Middle North Canadian 11100301 · OK | 3,174 | 48.2 | Exceptional (477) | 71% | p8 | 27 |
| Upper North Fork Red 11120301 · TX | 1,081 | 54.4 | Exceptional (474) | — | — | 30 |
| Lower North Fork Red 11120303 · OK | 2,028 | 51.1 | Exceptional (473) | 100% | p9 | 25 |
| Ute 11080007 · NM | 860 | 54.9 | Exceptional (468) | 0% | p98 | 39 |
| Washita Headwaters 11130301 · OK, TX | 1,876 | 57.8 | Exceptional (465) | 0% | p41 | 53 |
| Middle Canadian-Spring 11090106 · OK, TX | 2,139 | 57.3 | Exceptional (459) | 0% | p36 | 53 |
| Upper Canadian 11080003 · NM | 883 | 62.9 | Exceptional (458) | 100% | p0 | 28 |
| Rita Blanca 11090103 · NM, OK, TX | 473 | 55 | Exceptional (455) | — | — | 32 |
| Cimarron 11080002 · NM | 745 | 66.4 | Exceptional (446) | 75% | p17 | 40 |
| Carrizo 11090104 · NM, TX | 482 | 57.4 | Exceptional (440) | — | — | 35 |
| Upper Washita 11130302 · OK | 5,220 | 55.4 | Exceptional (439) | 82% | p10 | 33 |
| Punta de Agua 11090102 · NM, TX | 875 | 59.3 | Exceptional (439) | — | — | 36 |
| Palo Duro 11120102 · NM, TX | 687 | 49.3 | Exceptional (439) | — | — | 31 |
| Pease 11130105 · OK, TX | 546 | 58.3 | Exceptional (431) | 100% | p10 | 36 |
| Arkansas Headwaters 11020001 · CO | 4,889 | 59.1 | Exceptional (429) | 100% | p6 | 27 |
| Groesbeck-Sandy 11130101 · OK, TX | 1,694 | 52.1 | Exceptional (429) | 100% | p15 | 34 |
| Upper Prairie Dog Town Fork Red 11120103 · TX | 1,385 | 56.7 | Exceptional (425) | 100% | p10 | 36 |
| Lower Cimarron-Skeleton 11050002 · OK | 3,764 | 54.3 | Exceptional (424) | 67% | p17 | 38 |
| Upper Wolf 11100202 · TX | 445 | 57.3 | Exceptional (424) | 100% | p2 | 25 |
| Lake Meredith 11090105 · TX | 1,333 | 58.7 | Exceptional (422) | 100% | p9 | 31 |
| Palo Duro 11100104 · OK, TX | 1,117 | 51.3 | Exceptional (422) | 100% | p10 | 34 |
| Middle Canadian-Trujillo 11090101 · NM, TX | 1,254 | 57.7 | Exceptional (418) | — | — | 37 |
| Lower Cimarron-Eagle Chief 11050001 · KS, OK | 2,071 | 53.7 | Exceptional (411) | 50% | p29 | 45 |
| Upper Canadian-Ute Reservoir 11080006 · NM, TX | 1,735 | 57.3 | Exceptional (409) | 0% | p36 | 56 |
| Middle North Fork Red 11120302 · OK, TX | 2,174 | 54 | Exceptional (407) | 0% | p57 | 53 |
| Canadian Headwaters 11080001 · CO, NM | 1,199 | 64.6 | Exceptional (407) | 100% | p6 | 34 |
| Upper Salt Fork Red 11120201 · TX | 968 | 53.6 | Exceptional (406) | 100% | p10 | 36 |
| Blue-China 11130102 · OK, TX | 745 | 51.7 | Exceptional (406) | 100% | p0 | 25 |
| Mora 11080004 · NM | 1,039 | 63.6 | Exceptional (404) | 100% | p10 | 37 |
| Huerfano 11020006 · CO | 2,209 | 62.1 | Exceptional (400) | 100% | p10 | 39 |
| West Cache 11130203 · OK | 998 | 57.6 | Exceptional (400) | 100% | p10 | 38 |
| Northern Beaver 11130208 · OK | 826 | 58.1 | Exceptional (400) | — | — | 39 |
| Revuelto 11080008 · NM | 792 | 58 | Exceptional (400) | 0% | p99 | 45 |
| Cache 11130202 · OK | 753 | 55.6 | Exceptional (400) | 100% | p7 | 26 |
| Conchas 11080005 · NM | 598 | 63.2 | Exceptional (400) | — | — | 42 |
| Tule 11120104 · TX | 523 | 49.7 | Exceptional (400) | — | — | 35 |
| Lower Wolf 11100203 · OK, TX | 1,215 | 55.1 | Extreme (396) | 0% | p33 | 57 |
| North Wichita 11130204 · TX | 687 | 57.1 | Extreme (393) | 100% | p0 | 27 |
| Southern Beaver 11130207 · TX | 519 | 59.1 | Extreme (378) | 100% | p0 | 29 |
| Upper Beaver 11100101 · NM, OK, TX | 2,521 | 56.6 | Extreme (372) | — | — | 41 |
| Tierra Blanca 11120101 · NM, TX | 1,155 | 48 | Extreme (372) | 100% | p10 | 36 |
| Middle Pease 11130104 · TX | 813 | 58.8 | Extreme (368) | — | — | 43 |
| Frog-Mulberry 11110201 · AR | 1,828 | 60 | Extreme (367) | 75% | p10 | 46 |
| Coldwater 11100103 · NM, OK, TX | 1,169 | 54.8 | Extreme (364) | — | — | 41 |
| Lower Salt Fork Red 11120202 · OK, TX | 1,807 | 55.7 | Extreme (363) | 100% | p10 | 40 |
| Upper Cimarron 11040002 · CO, KS, NM, OK | 1,655 | 50.7 | Extreme (362) | — | — | 39 |
| Strawberry 11010012 · AR | 1,052 | 61 | Extreme (361) | — | — | 44 |
| South Wichita 11130205 · TX | 370 | 58.9 | Extreme (361) | 100% | p10 | 41 |
| North Pease 11130103 · TX | 1,183 | 57.6 | Extreme (359) | — | — | 43 |
| Elm Fork Red 11120304 · OK, TX | 797 | 53.7 | Extreme (359) | — | — | 41 |
| Middle Beaver 11100102 · KS, OK, TX | 2,319 | 54.5 | Extreme (357) | 100% | p10 | 40 |
| Lower Canadian-Walnut 11090202 · OK | 4,053 | 50.4 | Extreme (352) | 100% | p4 | 31 |
| Middle Washita 11130303 · OK | 3,097 | 58.5 | Extreme (347) | 67% | p12 | 45 |
| Chico 11020004 · CO | 868 | 50.1 | Extreme (347) | — | — | 40 |
| Upper Arkansas 11020002 · CO | 4,148 | 58.7 | Extreme (346) | 83% | p10 | 42 |
| Fountain 11020003 · CO | 2,682 | 54 | Extreme (346) | 56% | p14 | 46 |
| Cimarron Headwaters 11040001 · CO, NM, OK | 1,109 | 60.6 | Extreme (346) | — | — | 46 |
| Lower Black 11010009 · AR, MO | 1,809 | 52 | Extreme (339) | 100% | p18 | 40 |
| Farmers-Mud 11130201 · OK, TX | 1,741 | 58.8 | Extreme (332) | 67% | p6 | 42 |
| Elk 11070208 · AR, MO, OK | 2,140 | 55.9 | Extreme (331) | 50% | p27 | 49 |
| Lower Prairie Dog Town Fork Red 11120105 · OK, TX | 1,167 | 55.5 | Extreme (326) | 0% | p27 | 62 |
| Lower Beaver 11100201 · OK, TX | 2,352 | 54.1 | Extreme (322) | — | — | 45 |
| Sand Arroyo 11040004 · CO, KS | 966 | 51.1 | Extreme (321) | — | — | 43 |
| Fourche La Fave 11110206 · AR | 1,182 | 63.9 | Extreme (318) | 50% | p21 | 55 |
| Wichita 11130206 · OK, TX | 732 | 56.4 | Extreme (316) | 60% | p10 | 47 |
| Little 11090203 · OK | 1,372 | 53.8 | Extreme (313) | 50% | p45 | 50 |
| Petit Jean 11110204 · AR | 1,361 | 62.1 | Extreme (310) | 100% | p6 | 40 |
| Lower Arkansas-Maumelle 11110207 · AR | 2,389 | 51.4 | Extreme (309) | 100% | p10 | 42 |
| North Fork Cimarron 11040003 · CO, KS | 1,498 | 45.5 | Extreme (309) | — | — | 42 |
| Lake O' The Cherokees 11070206 · AR, KS, MO, OK | 1,261 | 53.2 | Extreme (305) | 60% | p7 | 44 |
| Upper Salt Fork Arkansas 11060002 · KS, OK | 894 | 58.5 | Extreme (305) | 0% | p29 | 64 |
| Horse 11020008 · CO | 686 | 58.8 | Extreme (305) | — | — | 49 |
| Purgatoire 11020010 · CO, NM | 2,484 | 60 | Extreme (303) | 83% | p4 | 42 |
| Upper Cimarron-Bluff 11040008 · KS, OK | 1,522 | 57 | Extreme (301) | 50% | p30 | 54 |
| Arkansas-Dodge City 11030003 · KS | 2,797 | 41.2 | Extreme (300) | — | — | 41 |
| Crooked 11040007 · KS, OK | 2,462 | 43 | Extreme (300) | 100% | p10 | 40 |
| Rattlesnake 11030009 · KS | 1,866 | 43.6 | Extreme (300) | 50% | p18 | 50 |
| Medicine Lodge 11060003 · KS, OK | 1,458 | 54.5 | Extreme (300) | 100% | p12 | 44 |
| Kiamichi 11140105 · AR, OK | 1,444 | 63.1 | Extreme (300) | 67% | p13 | 50 |
| Clear Boggy 11140104 · OK | 1,208 | 58.4 | Extreme (300) | 0% | p40 | 64 |
| Lower Washita 11130304 · OK | 1,151 | 56.8 | Extreme (300) | 50% | p52 | 52 |
| Blue 11140102 · OK | 1,076 | 56.3 | Extreme (300) | 0% | p38 | 64 |
| Gar-Peace 11030010 · KS | 1,059 | 44.6 | Extreme (300) | 100% | p15 | 40 |
| Mountain Fork 11140108 · AR, OK | 922 | 64.1 | Extreme (300) | 0% | p63 | 64 |
| Apishapa 11020007 · CO | 589 | 59.5 | Extreme (300) | 100% | p3 | 35 |
| Middle Verdigris 11070103 · KS, OK | 1,611 | 58.4 | Severe (299) | 0% | p27 | 65 |
| Muddy Boggy 11140103 · OK | 1,478 | 60.6 | Severe (299) | 100% | p14 | 41 |
| Spring 11070207 · KS, MO, OK | 5,955 | 51.9 | Severe (298) | 88% | p17 | 45 |
| Poteau 11110105 · AR, OK | 2,580 | 59.9 | Severe (298) | 33% | p44 | 59 |
| Little Arkansas 11030012 · KS | 3,111 | 45.9 | Severe (297) | 100% | p7 | 32 |
| Upper Little 11140107 · OK | 1,126 | 63.5 | Severe (297) | 50% | p43 | 57 |
| Robert S. Kerr Reservoir 11110104 · AR, OK | 2,483 | 60.1 | Severe (296) | 75% | p15 | 51 |
| Bois D'arc-Island 11140101 · OK, TX | 1,618 | 59.1 | Severe (294) | 67% | p24 | 49 |
| Spring 11010010 · AR, MO | 2,413 | 58.4 | Severe (293) | 67% | p10 | 45 |
| Caney 11070106 · KS, OK | 2,946 | 62.4 | Severe (292) | 33% | p26 | 56 |
| Lake Conway-Point Remove 11110203 · AR | 1,721 | 56.4 | Severe (291) | 0% | p28 | 64 |
| Dardanelle Reservoir 11110202 · AR | 2,456 | 61.4 | Severe (290) | 50% | p37 | 56 |
| Upper Cimarron-Liberal 11040006 · KS, OK | 2,276 | 44.6 | Severe (288) | 100% | p9 | 30 |
| Lower North Canadian 11100302 · OK | 2,764 | 52.3 | Severe (285) | 100% | p8 | 35 |
| Lower Cimarron 11050003 · OK | 1,390 | 58 | Severe (284) | 100% | p6 | 35 |
| Upper Arkansas-John Martin Reservoir 11020009 · CO, KS | 2,537 | 51.4 | Severe (282) | 67% | p11 | 45 |
| Middle Arkansas-Lake McKinney 11030001 · CO, KS | 3,397 | 43.2 | Severe (281) | 100% | p10 | 37 |
| Deep Fork 11100303 · OK | 3,785 | 53.5 | Severe (280) | 100% | p11 | 39 |
| Upper White-Village 11010013 · AR | 3,068 | 47.6 | Severe (280) | 0% | p40 | 62 |
| Lake Texoma 11130210 · OK, TX | 776 | 59.8 | Severe (278) | — | — | 52 |
| Rush 11020012 · CO | 524 | 60.3 | Severe (277) | — | — | 52 |
| Illinois 11110103 · AR, OK | 3,403 | 59.8 | Severe (276) | 19% | p41 | 61 |
| Lower Neosho 11070209 · AR, OK | 2,435 | 56.2 | Severe (276) | 33% | p39 | 59 |
| Cow 11030011 · KS | 1,326 | 47.4 | Severe (276) | 100% | p1 | 32 |
| Lower Salt Fork Arkansas 11060004 · KS, OK | 1,555 | 54.9 | Severe (273) | 100% | p5 | 35 |
| Sulphur Headwaters 11140301 · TX | 244 | 53.6 | Severe (268) | 67% | p10 | 52 |
| Coon-Pickerel 11030004 · KS | 3,372 | 45.9 | Severe (267) | 100% | p12 | 43 |
| Bear 11040005 · CO, KS | 2,664 | 45.1 | Severe (267) | — | — | 46 |
| North Fork Ninnescah 11030014 · KS | 1,212 | 45.7 | Severe (264) | 100% | p12 | 43 |
| Beaver Reservoir 11010001 · AR, MO | 4,406 | 58.2 | Severe (261) | 29% | p46 | 57 |
| Upper Arkansas-Lake Meredith 11020005 · CO | 2,657 | 51.2 | Severe (258) | 100% | p5 | 35 |
| Middle White 11010004 · AR | 2,005 | 62.5 | Severe (258) | 0% | p36 | 69 |
| Little Wichita 11130209 · TX | 707 | 57.8 | Severe (258) | 100% | p10 | 48 |
| Lower Little Arkansas, Oklahoma 11140109 · AR, OK | 2,631 | 62.8 | Severe (249) | 33% | p27 | 60 |
| Elk 11070104 · KS | 962 | 60.7 | Severe (249) | 50% | p41 | 52 |
| Middle Neosho 11070205 · KS, OK | 2,027 | 59 | Severe (248) | 33% | p28 | 62 |
| Middle Arkansas-Slate 11030013 · KS | 1,704 | 47.1 | Severe (236) | 56% | p15 | 54 |
| South Fork Ninnescah 11030015 · KS | 1,272 | 49.4 | Severe (231) | 50% | p25 | 51 |
| Kaw Lake 11060001 · KS, OK | 1,187 | 60 | Severe (226) | — | — | 57 |
| Lower Canadian 11090204 · OK | 1,705 | 56.9 | Severe (225) | 0% | p80 | 65 |
| Lower Verdigris 11070105 · OK | 555 | 59.7 | Severe (224) | 100% | p6 | 40 |
| Chikaskia 11060005 · KS, OK | 2,061 | 51.7 | Severe (223) | 0% | p33 | 67 |
| Buckner 11030006 · KS | 1,124 | 49.3 | Severe (223) | 40% | p27 | 58 |
| Pecan-Waterhole 11140106 · AR, OK, TX | 961 | 59 | Severe (223) | 100% | p17 | 51 |
| Lower Walnut River 11030018 · KS | 1,974 | 57.1 | Severe (220) | 0% | p28 | 70 |
| Black Bear-Red Rock 11060006 · OK | 2,140 | 58.7 | Severe (219) | 50% | p25 | 60 |
| Whitewoman 11030002 · CO, KS | 1,456 | 44.8 | Severe (218) | — | — | 51 |
| Cadron 11110205 · AR | 1,267 | 62.2 | Severe (216) | 50% | p22 | 62 |
| Dirty-Greenleaf 11110102 · OK | 812 | 56.5 | Severe (211) | 0% | p41 | 70 |
| James 11010002 · MO | 5,419 | 50.3 | Severe (209) | 50% | p23 | 58 |
| Bird 11070107 · OK | 1,275 | 59.9 | Severe (209) | 33% | p36 | 62 |
| Ninnescah 11030016 · KS | 508 | 50 | Severe (205) | 0% | p31 | 68 |
| Polecat-Snake 11110101 · OK | 1,123 | 57.9 | Severe (204) | 25% | p39 | 66 |
| Upper Walnut River 11030017 · KS | 1,873 | 54.3 | Severe (203) | 50% | p21 | 60 |
| Bayou Pierre 11140206 · LA, TX | 3,502 | 57.4 | Severe (200) | 0% | p82 | 65 |
| Loggy Bayou 11140203 · AR, LA | 3,480 | 60.9 | Severe (200) | 0% | p68 | 72 |
| Lower Red-Lake Iatt 11140207 · LA | 3,265 | 58.1 | Severe (200) | — | — | 59 |
| Black Lake Bayou 11140209 · LA | 1,519 | 60.4 | Severe (200) | — | — | 60 |
| Saline Bayou 11140208 · LA | 984 | 61.6 | Severe (200) | 0% | p51 | 73 |
| Two Butte 11020013 · CO | 882 | 60.1 | Severe (200) | — | — | 60 |
| Red Chute 11140204 · LA | 767 | 51.8 | Severe (200) | 0% | p35 | 69 |
| Middle Red-Coushatta 11140202 · LA | 488 | 54.1 | Severe (200) | — | — | 57 |
| White Oak Bayou 11140303 · TX | 235 | 52.8 | Severe (200) | 50% | p29 | 60 |
| Bodcau Bayou 11140205 · AR, LA | 1,185 | 61.5 | Moderate (199) | 0% | p58 | 73 |
| Little Cypress 11140307 · TX | 263 | 49.3 | Moderate (187) | 100% | p10 | 50 |
| Big Sandy 11020011 · CO | 1,007 | 57.8 | Moderate (186) | — | — | 60 |
| Lake O'the Pines 11140305 · TX | 424 | 49.3 | Moderate (186) | 0% | p80 | 65 |
| Little Red 11010014 · AR | 2,866 | 62.3 | Moderate (184) | 75% | p18 | 58 |
| Lower Sulpher 11140302 · AR, TX | 1,128 | 59.4 | Moderate (182) | 33% | p26 | 67 |
| North Fork White 11010006 · AR, MO | 2,752 | 56.9 | Moderate (180) | 0% | p30 | 72 |
| Eleven Point 11010011 · AR, MO | 2,136 | 54.3 | Moderate (176) | 100% | p23 | 52 |
| Cross Bayou 11140304 · AR, LA, TX | 1,254 | 55.9 | Moderate (176) | — | — | 60 |
| Upper Neosho 11070204 · KS | 1,782 | 59.5 | Moderate (172) | 0% | p47 | 74 |
| Lower Walnut Creek 11030008 · KS | 1,183 | 49.2 | Moderate (170) | 33% | p33 | 64 |
| Upper Verdigris 11070101 · KS | 1,632 | 61.4 | Moderate (166) | 0% | p45 | 75 |
| Fall 11070102 · KS | 1,188 | 62.3 | Moderate (163) | 0% | p47 | 75 |
| McKinney-Posten Bayous 11140201 · AR, LA, TX | 1,311 | 53.4 | Moderate (160) | 50% | p30 | 63 |
| Pawnee 11030005 · KS | 1,690 | 48.5 | Moderate (156) | 100% | p10 | 52 |
| Bull Shoals Lake 11010003 · AR, MO | 4,160 | 55 | Moderate (155) | 67% | p22 | 57 |
| Upper Cottonwood 11070202 · KS | 907 | 60.9 | Moderate (143) | 0% | p32 | 76 |
| Current 11010008 · AR, MO | 4,415 | 55.5 | Moderate (137) | 80% | p16 | 58 |
| Buffalo 11010005 · AR | 2,197 | 60.4 | Moderate (130) | 57% | p23 | 62 |
| Caddo Lake 11140306 · LA, TX | 1,267 | 60.7 | Moderate (109) | 67% | p10 | 59 |
| Upper Black 11010007 · AR, MO | 4,353 | 54 | Abnormally dry (99) | 14% | p38 | 74 |
| Upper Walnut Creek 11030007 · KS | 999 | 51.1 | Abnormally dry (38) | — | — | 72 |
| Neosho Headwaters 11070201 · KS | 1,222 | 60.6 | Abnormally dry (22) | 40% | p33 | 77 |
| Lower Cottonwood 11070203 · KS | 1,369 | 59.5 | Abnormally dry (18) | 33% | p34 | 78 |