Coverage: Kansas, Nebraska, Oklahoma, South Dakota, North Dakota, New Mexico (eastern), Colorado (eastern Front Range — Denver, Colorado Springs), Wyoming (southeastern — Cheyenne), Texas (Panhandle), Minnesota (western), Iowa (western), Missouri (western), Arkansas, Louisiana (northern), and Montana (eastern — Great Falls)
Southwest Power Pool sits squarely in Tornado Alley — violent spring weather including tornadoes, large hail, and derechos is a consistent operational challenge requiring rapid real-time dispatch adjustments. SPP leads the nation in wind generation as a percentage of total load, with Oklahoma and Kansas among the most wind-rich states in the country. Continental climate extremes include Arctic air masses in winter (some of the coldest temperatures in the contiguous U.S.), extreme summer heat in Oklahoma and Kansas, and dramatic spring temperature swings that can move 40–50°F in a single day. Effective April 1, 2026, SPP expanded its footprint to include the Colorado Front Range (Denver, Colorado Springs), southeastern Wyoming (Cheyenne), and north-central Montana (Great Falls).
Temperature Forecast
Observed and forecast temperature maps, anomalies, and degree-day accumulations.
Temperature normals based on NOAA 1991–2020 U.S. Climate Normals.
Precipitation Chance
Quantitative precipitation estimates, totals, and probabilistic outlooks across the region.
Data from NWS API. Auto-refreshes every 4 hours. Shows all available forecast days from NWS and extended gridpoint data.
Flood Watch issued September 30 at 7:02AM CDT until October 2 at 1:00AM CDT by NWS Kansas City/Pleasant Hill MO
Doniphan; Atchison; Nodaway; Worth; Gentry; Harrison; Holt; Andrew
Expires: 9/30/2026, 8:15:00 PM
Flood Watch issued September 30 at 7:02AM CDT until October 2 at 1:00AM CDT by NWS Kansas City/Pleasant Hill MO
Atchison; Mercer; Putnam; Schuyler; De Kalb; Daviess; Grundy; Sullivan; Adair; Buchanan
Expires: 9/30/2026, 8:15:00 PM
Flood Warning issued September 30 at 6:59AM CDT until September 30 at 2:00PM CDT by NWS Amarillo TX
Deaf Smith, TX; Oldham, TX; Potter, TX; Randall, TX
Expires: 9/30/2026, 7:00:00 PM
Flood Warning issued September 30 at 6:58AM CDT until September 30 at 1:45PM CDT by NWS Amarillo TX
Deaf Smith, TX; Randall, TX
Expires: 9/30/2026, 6:45:00 PM
Flood Warning issued September 30 at 6:55AM CDT until September 30 at 9:15AM CDT by NWS Amarillo TX
Randall, TX
Expires: 9/30/2026, 2:15:00 PM
Flood Advisory issued September 30 at 6:54AM CDT until September 30 at 9:15AM CDT by NWS Amarillo TX
Armstrong, TX; Randall, TX
Expires: 9/30/2026, 2:15:00 PM
Flood Warning issued September 30 at 6:52AM CDT until September 30 at 2:45PM CDT by NWS Amarillo TX
Potter, TX; Randall, TX
Expires: 9/30/2026, 7:45:00 PM
Flood Warning issued September 30 at 6:46AM CDT until September 30 at 9:45AM CDT by NWS Amarillo TX
Deaf Smith, TX; Oldham, TX
Expires: 9/30/2026, 2:45:00 PM
Flood Watch issued September 30 at 5:43AM MDT until October 1 at 12:00AM MDT by NWS Albuquerque NM
Far Northwest Highlands; Tusas Mountains Including Chama; Jemez Mountains; Northern Sangre de Cristo Mountains; Southern Sangre de Cristo Mountains; East Slopes Sangre de Cristo Mountains; Upper Rio Grande Valley; Espanola Valley; Johnson and Bartlett Mesas Including Raton Pass; Far Northeast Highlands; Union County
Expires: 9/30/2026, 9:00:00 PM
Dense Fog Advisory issued September 30 at 6:32AM CDT until September 30 at 10:00AM CDT by NWS Sioux Falls SD
Dickinson; Clay; Buena Vista; Ida
Expires: 9/30/2026, 3:00:00 PM
Dense Fog Advisory issued September 30 at 6:32AM CDT until September 30 at 10:00AM CDT by NWS Sioux Falls SD
Lyon; Osceola; Sioux; O'Brien; Plymouth; Cherokee; Woodbury; Lincoln; Lyon; Murray; Cottonwood; Nobles; Jackson; Pipestone; Rock; Dixon; Dakota; Beadle; Kingsbury; Brookings; Gregory; Jerauld; Sanborn; Miner; Lake; Moody; Brule; Aurora; Davison; Hanson; McCook; Minnehaha; Charles Mix; Douglas; Hutchinson; Turner; Lincoln; Bon Homme; Yankton; Clay; Union
Expires: 9/30/2026, 3:00:00 PM
Flood Advisory issued September 30 at 6:24AM CDT until September 30 at 10:15AM CDT by NWS Lubbock TX
Bailey, TX; Parmer, TX
Expires: 9/30/2026, 3:15:00 PM
Special Weather Statement issued September 30 at 6:00AM CDT by NWS Des Moines IA
Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Sac; Calhoun; Webster; Hamilton; Hardin; Greene; Boone; Story
Expires: 9/30/2026, 1:00:00 PM
Flash Flood Warning issued September 30 at 5:56AM CDT until September 30 at 7:30AM CDT by NWS Lubbock TX
Castro, TX; Lamb, TX; Parmer, TX; Swisher, TX
Expires: 9/30/2026, 12:30:00 PM
Flood Watch issued September 30 at 5:54AM CDT until October 1 at 7:00PM CDT by NWS North Platte NE
Lincoln; Chase; Hayes; Frontier
Expires: 10/1/2026, 12:00:00 AM
Flash Flood Warning issued September 30 at 5:51AM CDT until September 30 at 8:15AM CDT by NWS Lubbock TX
Castro, TX
Expires: 9/30/2026, 1:15:00 PM
Flood Warning issued September 30 at 5:37AM CDT until September 30 at 8:45AM CDT by NWS Amarillo TX
Oldham, TX; Potter, TX
Expires: 9/30/2026, 1:45:00 PM
Flood Advisory issued September 30 at 5:22AM CDT until September 30 at 8:00AM CDT by NWS Lubbock TX
Bailey, TX; Parmer, TX
Expires: 9/30/2026, 1:00:00 PM
Flash Flood Warning issued September 30 at 5:01AM CDT until September 30 at 7:45AM CDT by NWS Amarillo TX
Potter, TX; Randall, TX
Expires: 9/30/2026, 12:45:00 PM
Dense Fog Advisory issued September 30 at 4:53AM CDT until September 30 at 10:00AM CDT by NWS Twin Cities/Chanhassen MN
Douglas; Stevens; Pope; Lac Qui Parle; Swift; Chippewa; Kandiyohi; Yellow Medicine; Renville; Redwood; Brown
Expires: 9/30/2026, 3:00:00 PM
Flood Watch issued September 30 at 4:40AM CDT until October 2 at 7:00AM CDT by NWS Fort Worth TX
Montague; Cooke; Grayson; Fannin; Young; Jack; Wise; Denton; Collin; Hunt; Stephens; Palo Pinto; Parker; Tarrant; Dallas; Rockwall; Kaufman; Eastland; Erath; Hood; Somervell; Johnson; Ellis; Comanche; Mills; Hamilton; Bosque; Hill; Navarro; Lampasas; Coryell; Bell; McLennan; Falls; Limestone; Milam
Expires: 9/30/2026, 9:00:00 PM
Dense Fog Advisory issued September 30 at 4:25AM CDT until September 30 at 10:00AM CDT by NWS Omaha/Valley NE
Thurston; Cuming
Expires: 9/30/2026, 3:00:00 PM
Dense Fog Advisory issued September 30 at 4:25AM CDT until September 30 at 10:00AM CDT by NWS Omaha/Valley NE
Knox; Cedar; Antelope; Pierce; Wayne; Boone; Madison; Stanton; Platte; Colfax
Expires: 9/30/2026, 3:00:00 PM
Flood Advisory issued September 30 at 4:24AM CDT until September 30 at 7:30AM CDT by NWS Topeka KS
Marshall, KS; Nemaha, KS; Washington, KS
Expires: 9/30/2026, 12:30:00 PM
Dense Fog Advisory issued September 30 at 4:23AM CDT until September 30 at 10:00AM CDT by NWS North Platte NE
Boyd; Holt; Blaine; Loup; Garfield; Wheeler; Logan; Custer; Lincoln; Hayes; Frontier
Expires: 9/30/2026, 3:00:00 PM
Flood Warning issued September 30 at 3:54AM CDT until October 3 at 1:00AM CDT by NWS Amarillo TX
Potter, TX
Expires: 9/30/2026, 9:00:00 PM
Flood Watch issued September 30 at 2:52AM MDT until October 1 at 6:00PM MDT by NWS Goodland KS
Yuma County; Kit Carson County; Cheyenne County; Cheyenne; Rawlins; Decatur; Norton; Sherman; Thomas; Sheridan; Graham; Wallace; Logan; Gove; Greeley; Wichita; Dundy; Hitchcock; Red Willow
Expires: 9/30/2026, 11:00:00 PM
Flood Watch issued September 30 at 3:21AM CDT until October 1 at 7:00PM CDT by NWS Dodge City KS
Trego; Ellis; Scott; Lane; Ness; Rush; Hamilton; Kearny; Finney; Hodgeman; Pawnee; Stanton; Grant; Haskell; Gray; Ford; Morton; Stevens; Seward; Meade
Expires: 9/30/2026, 9:00:00 PM
Flood Watch issued September 30 at 2:33AM CDT until October 1 at 1:00PM CDT by NWS Norman OK
Seminole; Hughes; Garvin; Murray; Pontotoc; Coal; Jefferson; Carter; Johnston; Atoka; Love; Marshall; Bryan; Wichita; Baylor; Archer; Clay
Expires: 9/30/2026, 9:45:00 PM
Dense Fog Advisory issued September 30 at 1:50AM CDT until September 30 at 10:00AM CDT by NWS Aberdeen SD
Spink; Clark; Codington; Hamlin; Deuel; Hyde; Hand; Buffalo
Expires: 9/30/2026, 3:00:00 PM
Flood Watch issued September 30 at 1:42AM CDT until October 2 at 1:00AM CDT by NWS Des Moines IA
Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose; Davis
Expires: 10/1/2026, 2:45:00 AM
Flood Watch issued September 30 at 12:33AM MDT until October 1 at 6:00AM MDT by NWS Pueblo CO
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley
Expires: 9/30/2026, 2:45:00 PM
Flood Watch issued September 30 at 12:33AM MDT until October 1 at 12:00PM MDT by NWS Pueblo CO
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft; Northern Sangre de Cristo Mountains above 11000 Ft; Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft; Southern Sangre De Cristo Mountains Above 11000 Ft; Northwestern Fremont County Above 8500Ft; Western/Central Fremont County Below 8500 Ft; Wet Mountain Valley Below 8500 Ft; Wet Mountains between 6300 and 10000Ft; Wet Mountains above 10000 Ft; Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And 11000 Ft; Pikes Peak above 11000 Ft; Canon City Vicinity/Eastern Fremont County; Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft; Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Ft; Pueblo Vicinity/Pueblo County Below 6300 Feet; Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft; Trinidad Vicinity/Western Las Animas County Below 7500 Ft; Crowley County; La Junta Vicinity/Otero County; Eastern Las Animas County; Western Kiowa County; Eastern Kiowa County; Las Animas Vicinity/Bent County; Lamar Vicinity/Prowers County; Springfield Vicinity/Baca County
Expires: 9/30/2026, 2:45:00 PM
Flood Watch issued September 30 at 1:17AM CDT until October 1 at 7:00PM CDT by NWS Hastings NE
Phillips; Smith; Jewell; Rooks; Osborne; Mitchell; Merrick; Polk; Dawson; Buffalo; Hall; Hamilton; York; Gosper; Phelps; Kearney; Adams; Clay; Fillmore; Furnas; Harlan; Franklin; Webster; Nuckolls; Thayer
Expires: 9/30/2026, 8:00:00 PM
Flood Watch issued September 30 at 1:16AM CDT until October 1 at 7:00PM CDT by NWS Wichita KS
Russell; Lincoln
Expires: 9/30/2026, 10:00:00 PM
Flood Watch issued September 30 at 1:16AM CDT until October 1 at 7:00PM CDT by NWS Wichita KS
Barton; Ellsworth; Saline
Expires: 9/30/2026, 10:00:00 PM
Flood Watch issued September 30 at 1:08AM CDT until October 1 at 6:00PM CDT by NWS Topeka KS
Jefferson; Dickinson; Geary; Morris; Wabaunsee; Shawnee
Expires: 9/30/2026, 8:00:00 PM
Flood Watch issued September 30 at 1:08AM CDT until October 1 at 6:00PM CDT by NWS Topeka KS
Republic; Washington; Marshall; Nemaha; Brown; Cloud; Clay; Riley; Pottawatomie; Jackson; Ottawa
Expires: 9/30/2026, 8:00:00 PM
Dense Fog Advisory issued September 30 at 12:57AM CDT until September 30 at 11:00AM CDT by NWS Goodland KS
Rawlins; Decatur; Norton; Thomas; Sheridan; Graham; Hitchcock; Red Willow
Expires: 9/30/2026, 4:00:00 PM
Flood Watch issued September 30 at 12:46AM CDT until October 1 at 7:00PM CDT by NWS Omaha/Valley NE
Harrison; Shelby; Pottawattamie; Mills; Montgomery; Fremont; Page; Dodge; Washington; Butler; Saunders; Douglas; Sarpy; Seward; Lancaster; Cass; Otoe; Saline; Jefferson; Gage; Johnson; Nemaha; Pawnee; Richardson
Expires: 10/2/2026, 12:00:00 AM
Dense Fog Advisory issued September 29 at 11:55PM CDT until September 30 at 11:00AM CDT by NWS Hastings NE
Phillips; Smith; Valley; Greeley; Nance; Sherman; Howard; Merrick; Polk; Dawson; Buffalo; Hall; Hamilton; York; Gosper; Phelps; Kearney; Adams; Clay; Furnas; Harlan; Franklin; Webster
Expires: 9/30/2026, 4:00:00 PM
Flood Watch issued September 29 at 11:09PM CDT until September 30 at 1:00PM CDT by NWS Amarillo TX
Cimarron; Texas; Dallam; Sherman; Hansford; Hartley; Moore; Hutchinson; Oldham; Potter; Carson; Deaf Smith; Randall; Armstrong; Palo Duro Canyon
Expires: 9/30/2026, 6:00:00 PM
Flood Watch issued September 29 at 10:07PM MDT until October 1 at 6:00AM MDT by NWS Grand Junction CO
Northwestern San Juan Mountains; Southwest San Juan Mountains; San Juan River Basin
Expires: 9/30/2026, 11:00:00 PM
Hydrologic Outlook issued September 29 at 8:54PM CDT by NWS Topeka KS
Marshall, KS
Expires: 10/1/2026, 2:00:00 AM
Hydrologic Outlook issued September 29 at 8:51PM CDT by NWS Topeka KS
Marshall, KS; Washington, KS
Expires: 10/1/2026, 2:00:00 AM
Flood Warning issued September 29 at 8:50PM CDT until October 4 at 6:00AM CDT by NWS Kansas City/Pleasant Hill MO
Buchanan, MO
Expires: 10/1/2026, 2:00:00 AM
Flood Warning issued September 29 at 8:50PM CDT until October 4 at 1:00PM CDT by NWS Topeka KS
Marshall, KS
Expires: 9/30/2026, 5:00:00 PM
Flood Watch issued September 29 at 2:05PM MDT until October 1 at 12:00PM MDT by NWS Denver CO
Southeast Elbert County Below 6000 Feet/South Lincoln County
Expires: 9/30/2026, 12:30:00 PM
Life-safety notice: Weather Workbench is informational only. Always verify life-safety decisions against your local NWS forecast office at weather.gov.
| Metric | Actual | Normal | Departure |
|---|---|---|---|
| CDD | 1797.1 | 1295.0 | +502.1 |
| HDD | 2396.8 | 2861.0 | -464.2 |
Source: NOAA Climate Prediction Center
Short- and medium-range weather outlooks from official and model-based forecast products.
Live and looping NEXRAD radar imagery showing current precipitation and storm structure.
GOES satellite imagery capturing cloud cover, moisture, and convective activity.
NHC track forecasts, storm outlooks, and tropical satellite imagery for active and potential cyclones.
Numerical weather prediction output from GFS, NAM, ECMWF, and other operational models.
Raw GRIB2 data feeds and gridded analysis products for downstream processing.
Synoptic surface charts depicting fronts, pressure systems, and analyzed weather boundaries.
Weekly U.S. Drought Monitor classifications and long-range moisture deficit trends.
SPP (Southwest Power Pool) — Frequently Asked Questions
Background on the SPP footprint, the weather drivers that shape its grid, and the National Weather Service alerts that signal stress on the system.
All Sources for SPP
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