Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 19-Aug-19 | Local Time: 06:45 AM | Meteorologist: Mims |
| Ag Burn Decision Above 3000 ft: Permissive Burn Day (Fair) | |||
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| A.M. Stability (°F) = 10 | Wind Speed (mph) | = | 7 |
| 500 millibar height (decameters) = 585 | Average Rainfall (in) | = | 0 |
| Meteorological (MET) Factor | = | 0.45 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 4.9 | |
| Allocation Equation: | = | 6290 | |
| ARB REVISED Basinwide Allocation | _________________________________________ | = | 2000 |
| Revised Allocation | _________________________________________ | = | 2000 |
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| District | Yesterday's 24-Hr Avg PM2.5 |
Yesterday's PM2.5 (0-6 PST) |
Reduction Factor |
Proration | Final Allocation (Acres) |
Avg PM2.5 (0-6 PST) |
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| Conc | Stn | |||||||||||||||||
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| Colusa | 8 | 6 | 1 | 0.17 | 200 | 3 | COL | |||||||||||
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| Sutter | 11 | 13 | 1 | 0.17 | 200 | 8 | YUB | |||||||||||
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| Butte | 10 | 11 | 1 | 0.17 | 200 | 7 | CIC-GRD | |||||||||||
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| Yolo/Solano | 7 | 8 | 1 | 0.15 | 200 | 5 | DAV-WOO | |||||||||||
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| Glenn | - | - | 1 | 0.13 | 200 | - | WLW | |||||||||||
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| Sacramento | 6 | 10 | 1 | 0.09 | 200 | 5 | SAC | |||||||||||
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| Yuba | 11 | 13 | 1 | 0.07 | 200 | 8 | YUB | |||||||||||
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| Placer | 6 | 8 | 1 | 0.05 | 200 | 6 | ROS | |||||||||||
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| Tehama | 10 | 11 | 1 | 200 acres unless reduced by PM |
200 | 6 | RBL | |||||||||||
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| Shasta | 2 | 1 | 1 | 200 | 1 | AND | ||||||||||||
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| When any district's 0-6 am average PM2.5 is >= 27 ug/m
increasing concentrations will result in a reduction in allocation acres (e.g. 27-28 : 20%, 29-30 : 40%, 31-32 : 60%, 33-34 : 80%) |
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| ARB Comments | ||||||||||||||||||
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| Cautionary Comments: | ||||||||||||||||||
| *** Permissive Burn Day *** No big changes as low pressure and cooler temperatures remain. A little less wind and weaker inversions keeps decent dispersion overhead as we enjoy our last couple of day of this. Air quality will stay good as well. 24hr Outlook *** Permissive Burn Day *** One more day in the 80s then high pressure returns for the rest of the week. We will see decreasing dispersion as the week progresses, but still relatively good considering the summer we are having. |
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| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights near 3000 feet. | ||||||||||||||||||
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| Winds: | ||||||||||||||||||
| Valley: SW 5-10 mph, gusting to 15 mph Delta: SW 10-20 mph. |
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