Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 5-Apr-13 | Local Time: 07:22 AM | Meteorologist: Wang |
| Ag Burn Decision Above 3000 ft: Permissive Burn Day (Good) | |||
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| A.M. Stability (°F) = -4 | Wind Speed (mph) | = | 10 |
| 500 millibar height (decameters) = 564 | Average Rainfall (in) | = | 0.82 |
| Meteorological (MET) Factor | = | 0.9 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 4.1 | |
| Allocation Equation: | = | 14471 | |
| 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 | 6 | 8 | 1 | 0.17 | 200 | 5 | COL | |||||||||||
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| Sutter | 4 | 0 | 1 | 0.17 | 200 | 4 | YUB | |||||||||||
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| Butte | 5 | 7 | 1 | 0.17 | 200 | 5 | CIC-GRD | |||||||||||
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| Yolo/Solano | 4 | 3 | 1 | 0.15 | 200 | 3 | DAV-WOO | |||||||||||
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| Glenn | 6 | 8 | 1 | 0.13 | 200 | 3 | WLW | |||||||||||
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| Sacramento | 5 | 5 | 1 | 0.09 | 200 | 3 | SAC | |||||||||||
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| Yuba | 4 | 0 | 1 | 0.07 | 200 | 4 | YUB | |||||||||||
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| Placer | 6 | 0 | 1 | 0.05 | 200 | 5 | ROS | |||||||||||
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| Tehama | 6 | 8 | 1 | 200 acres unless reduced by PM |
200 | 3 | WLW | |||||||||||
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| Shasta | 11 | 13 | 1 | 200 | 8 | 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: | ||||||||||||||||||
| ***WET DAY*** Wet conditions due to the rain yesterday. A narrow short wave ridge pass through today. South to southwesterly wind 5-15 mph in the afternoon. A weak system will arrive and bring some showers tonight. 24 Hour Outlook ***WET DAY*** Series weak waves will arrive in Saturday and Sunday nights, bringing some light showers to the area. Dispersion will stay good through early next week. This pattern will help to keep things stirred up with another shot of wet weather by Monday. |
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| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights will reach around 2,500 feet by afternoon. |
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| Winds: | ||||||||||||||||||
| Valley:S/SE 5-15mph shifting slightly S/SW 5-15mph by afternoon. Delta: W 5-15mph |
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