Query the coordinates of interest by either using the map, above, to navigate and then click on a point of interest, or enter the coordinates manually, also above.
The windroses layer can be toggled on and off, and clicking on any of the windroses will produce an informational popup with more detailed windroses available for download.
Query results with downloadable datasets will appear in this box.
The following table contains a listing of airsheds and the available datasets within a given airshed by percentage of coverage within a county. Counties not listed have no assigned airshed polygons defined at this time.
| County | Coverage by Met Airshed | AERMET Datasets |
| ADAMS | Polygon: 4 - 80.62% | DIA, Pawnee, Orchard, Centennial Airport |
| Polygon: 7 - 17.90% | Ft St Vrain, DIA | |
| Polygon: 5 - 1.48% | Ft St Vrain, DIA, Greeley | |
| ALAMOSA | Polygon: 14 - 85.97% | Alamosa, MSP |
| ARAPAHOE | Polygon: 4 - 98.67% | DIA, Pawnee, Orchard, Centennial Airport |
| Polygon: 7 - 1.33% | Ft St Vrain, DIA | |
| ARCHULETA | Polygon: 28 - 52.46% | Durango |
| BACA | Polygon: 12 - 99.92% | Burlington, Limon |
| BENT | Polygon: 12 - 50.16% | Burlington, Limon |
| Polygon: 10 - 34.16% | La Junta, Lamar | |
| Polygon: 9 - 15.68% | Limon | |
| BOULDER | Polygon: 6 - 24.41% | Montrose, Henderson Mill, Rocky Flats |
| Polygon: 5 - 8.58% | Ft St Vrain, DIA, Greeley | |
| Polygon: 7 - 0.25% | Ft St Vrain, DIA | |
| BROOMFIELD | Polygon: 7 - 41.13% | Ft St Vrain, DIA |
| Polygon: 5 - 30.79% | Ft St Vrain, DIA, Greeley | |
| Polygon: 6 - 28.08% | Montrose, Henderson Mill, Rocky Flats | |
| CHEYENNE | Polygon: 9 - 62.72% | Limon |
| Polygon: 3 - 37.04% | Akron, Burlington | |
| CONEJOS | Polygon: 14 - 38.91% | Alamosa, MSP |
| COSTILLA | Polygon: 14 - 32.87% | Alamosa, MSP |
| CROWLEY | Polygon: 9 - 73.01% | Limon |
| Polygon: 10 - 18.65% | La Junta, Lamar | |
| Polygon: 11 - 4.70% | Portland, Pueblo | |
| Polygon: 8 - 3.64% | Colorado Springs, Pueblo Chemical Depot | |
| CUSTER | Polygon: 13 - 2.62% | Trinidad, Rio Grande |
| DELTA | Polygon: 18 - 24.32% | Grand Junction, Montrose |
| Polygon: 20 - 16.32% | Grand Junction, West Elk | |
| Polygon: 17 - 3.33% | Rifle, Parachute | |
| DENVER | Polygon: 7 - 50.30% | Ft St Vrain, DIA |
| Polygon: 4 - 48.90% | DIA, Pawnee, Orchard, Centennial Airport | |
| Polygon: 6 - 0.80% | Montrose, Henderson Mill, Rocky Flats | |
| DOLORES | Polygon: 15 - 28.73% | Montrose, Energy Fuels |
| DOUGLAS | Polygon: 4 - 68.57% | DIA, Pawnee, Orchard, Centennial Airport |
| EL PASO | Polygon: 8 - 61.22% | Colorado Springs, Pueblo Chemical Depot |
| Polygon: 9 - 25.44% | Limon | |
| Polygon: 4 - 2.54% | DIA, Pawnee, Orchard, Centennial Airport | |
| ELBERT | Polygon: 4 - 70.08% | DIA, Pawnee, Orchard, Centennial Airport |
| Polygon: 9 - 29.92% | Limon | |
| FREMONT | Polygon: 8 - 9.73% | Colorado Springs, Pueblo Chemical Depot |
| Polygon: 11 - 8.23% | Portland, Pueblo | |
| Polygon: 13 - 6.02% | Trinidad, Rio Grande | |
| GARFIELD | Polygon: 22 - 23.36% | Bar D, Greasewood |
| Polygon: 21 - 11.34% | Rifle, Grand Junction | |
| Polygon: 27 - 6.04% | Parachute, Willow Creek | |
| Polygon: 18 - 0.89% | Grand Junction, Montrose | |
| Polygon: 21 - 0.73% | Rifle, Grand Junction | |
| Polygon: 27 - 0.73% | Parachute, Willow Creek | |
| Polygon: 21 - 0.23% | Rifle, Grand Junction | |
| Polygon: 22 - 0.23% | Bar D, Greasewood | |
| GUNNISON | Polygon: 19 - 4.45% | Rifle, West Elk |
| Polygon: 20 - 0.18% | Grand Junction, West Elk | |
| HUERFANO | Polygon: 13 - 73.14% | Trinidad, Rio Grande |
| JACKSON | Polygon: 26 - 53.07% | Alamosa, MSP |
| JEFFERSON | Polygon: 6 - 21.08% | Montrose, Henderson Mill, Rocky Flats |
| Polygon: 7 - 4.18% | Ft St Vrain, DIA | |
| Polygon: 4 - 0.57% | DIA, Pawnee, Orchard, Centennial Airport | |
| KIOWA | Polygon: 9 - 82.74% | Limon |
| Polygon: 3 - 17.12% | Akron, Burlington | |
| Polygon: 10 - 0.01% | La Junta, Lamar | |
| KIT CARSON | Polygon: 3 - 98.77% | Akron, Burlington |
| Polygon: 9 - 1.18% | Limon | |
| LA PLATA | Polygon: 28 - 52.06% | Durango |
| LARIMER | Polygon: 1 - 17.74% | Rawhide, Greeley, Herford, MSP |
| Polygon: 5 - 1.46% | Ft St Vrain, DIA, Greeley | |
| Polygon: 6 - 0.28% | Montrose, Henderson Mill, Rocky Flats | |
| LAS ANIMAS | Polygon: 13 - 62.19% | Trinidad, Rio Grande |
| Polygon: 12 - 35.08% | Burlington, Limon | |
| LINCOLN | Polygon: 9 - 80.83% | Limon |
| Polygon: 3 - 17.54% | Akron, Burlington | |
| Polygon: 4 - 1.63% | DIA, Pawnee, Orchard, Centennial Airport | |
| LOGAN | Polygon: 3 - 58.09% | Akron, Burlington |
| Polygon: 2 - 41.44% | Sidney, MSP | |
| MESA | Polygon: 17 - 26.52% | Rifle, Parachute |
| Polygon: 18 - 19.34% | Grand Junction, Montrose | |
| Polygon: 21 - 16.11% | Rifle, Grand Junction | |
| Polygon: 15 - 9.39% | Montrose, Energy Fuels | |
| Polygon: 16 - 6.36% | Bar D, Greasewood | |
| Polygon: 22 - 4.91% | Bar D, Greasewood | |
| Polygon: 27 - 0.14% | Parachute, Willow Creek | |
| Polygon: 21 - 0.03% | Rifle, Grand Junction | |
| Polygon: 27 - 0.03% | Parachute, Willow Creek | |
| MOFFAT | Polygon: 25 - 71.96% | Craig, Durango |
| Polygon: 24 - 9.95% | Colowyo, Meeker | |
| Polygon: 23 - 7.02% | Meeker, Montrose | |
| MONTEZUMA | Polygon: 28 - 33.18% | Durango |
| MONTROSE | Polygon: 15 - 38.39% | Montrose, Energy Fuels |
| Polygon: 17 - 21.31% | Rifle, Parachute | |
| Polygon: 18 - 13.02% | Grand Junction, Montrose | |
| Polygon: 16 - 10.93% | Bar D, Greasewood | |
| Polygon: 19 - 1.15% | Rifle, West Elk | |
| Polygon: 20 - 0.65% | Grand Junction, West Elk | |
| MORGAN | Polygon: 4 - 58.26% | DIA, Pawnee, Orchard, Centennial Airport |
| Polygon: 3 - 18.58% | Akron, Burlington | |
| Polygon: 2 - 14.34% | Sidney, MSP | |
| Polygon: 1 - 8.81% | Rawhide, Greeley, Herford, MSP | |
| OTERO | Polygon: 12 - 45.63% | Burlington, Limon |
| Polygon: 13 - 31.30% | Trinidad, Rio Grande | |
| Polygon: 10 - 20.26% | La Junta, Lamar | |
| Polygon: 9 - 1.91% | Limon | |
| Polygon: 11 - 0.91% | Portland, Pueblo | |
| OURAY | Polygon: 17 - 23.69% | Rifle, Parachute |
| Polygon: 18 - 17.61% | Grand Junction, Montrose | |
| Polygon: 16 - 12.27% | Bar D, Greasewood | |
| PHILLIPS | Polygon: 3 - 100.00% | Akron, Burlington |
| PITKIN | Polygon: 29 - 0.89% | Aspen Pitkin County Airport |
| PROWERS | Polygon: 10 - 49.09% | La Junta, Lamar |
| Polygon: 12 - 45.38% | Burlington, Limon | |
| Polygon: 9 - 4.17% | Limon | |
| Polygon: 3 - 1.16% | Akron, Burlington | |
| PUEBLO | Polygon: 13 - 52.96% | Trinidad, Rio Grande |
| Polygon: 8 - 27.32% | Colorado Springs, Pueblo Chemical Depot | |
| Polygon: 11 - 16.64% | Portland, Pueblo | |
| Polygon: 9 - 1.06% | Limon | |
| RIO BLANCO | Polygon: 22 - 32.04% | Bar D, Greasewood |
| Polygon: 23 - 20.46% | Meeker, Montrose | |
| Polygon: 24 - 4.07% | Colowyo, Meeker | |
| Polygon: 25 - 0.02% | Craig, Durango | |
| RIO GRANDE | Polygon: 14 - 33.12% | Alamosa, MSP |
| ROUTT | Polygon: 25 - 49.92% | Craig, Durango |
| Polygon: 24 - 2.63% | Colowyo, Meeker | |
| SAGUACHE | Polygon: 14 - 18.75% | Alamosa, MSP |
| Polygon: 19 - 0.33% | Rifle, West Elk | |
| SAN MIGUEL | Polygon: 15 - 75.24% | Montrose, Energy Fuels |
| Polygon: 16 - 1.02% | Bar D, Greasewood | |
| SEDGWICK | Polygon: 3 - 98.88% | Akron, Burlington |
| WASHINGTON | Polygon: 3 - 93.07% | Akron, Burlington |
| Polygon: 4 - 6.93% | DIA, Pawnee, Orchard, Centennial Airport | |
| WELD | Polygon: 1 - 48.88% | Rawhide, Greeley, Herford, MSP |
| Polygon: 5 - 20.53% | Ft St Vrain, DIA, Greeley | |
| Polygon: 2 - 18.75% | Sidney, MSP | |
| Polygon: 4 - 11.67% | DIA, Pawnee, Orchard, Centennial Airport | |
| YUMA | Polygon: 3 - 100.00% | Akron, Burlington |
All applicants are required to receive a Representative Meteorological Data Determination or a Representative Meteorological Data Approval from the Permit Modeling Unit by following the instructions detailed in the Modeling Procedure Guidance found on the CDPHE Air Quality Modeling Guidance for Permits website. Any modeling analysis submitted without a Representative Meteorological Data Determination/Approval will be rejected and resubmittal would be required.
Meteorological datasets are ASCII based files that can be saved by right-clicking on the links above, and then saving the target to your local computer.