Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 19-Jun-13 | Local Time: 07:36 AM | Meteorologist: Gerber |
| Ag Burn Decision Above 3000 ft: Permissive Burn Day (Good) | |||
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| A.M. Stability (°F) = 2 | Wind Speed (mph) | = | 7 |
| 500 millibar height (decameters) = 563 | Average Rainfall (in) | = | 0.00 |
| Meteorological (MET) Factor | = | 0.65 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 4.4 | |
| Allocation Equation: | = | 12677 | |
| 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 | 5 | 4 | 1 | 0.17 | 200 | 6 | COL | |||||||||||
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| Sutter | 3 | 0 | 1 | 0.17 | 200 | 1 | YUB | |||||||||||
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| Butte | 5 | 4 | 1 | 0.17 | 200 | 5 | CIC-GRD | |||||||||||
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| Yolo/Solano | 2 | 2 | 1 | 0.15 | 200 | 4 | DAV-WOO | |||||||||||
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| Glenn | 5 | 5 | 1 | 0.13 | 200 | 0 | WLW | |||||||||||
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| Sacramento | - | - | 1 | 0.09 | 200 | - | SAC | |||||||||||
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| Yuba | 3 | 0 | 1 | 0.07 | 200 | 1 | YUB | |||||||||||
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| Placer | 5 | 2 | 1 | 0.05 | 200 | 6 | ROS | |||||||||||
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| Tehama | 5 | 5 | 1 | 200 acres unless reduced by PM |
200 | 0 | WLW | |||||||||||
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| Shasta | 7 | 8 | 1 | 200 | 6 | 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*** The area is still under the influence of a low pressure trough centered over Oregon. Dispersion will remain very good with a light delta push this morning transitioning to a more N/NW flow by afternoon. 24hr Outlook ***Permissive Day*** Breezy NW flow expected the rest of the week as we transition from trough to weak ridging. Overall dispersion will remain good at the surface and aloft despite temperatures warming into the 90s by the weekend. |
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| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights over 3000 feet |
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| Winds: | ||||||||||||||||||
| North Valley:L/V early turning N/NW 5-10 mph South Valley:S/SW 3-6 mph turning W/NW by afternoon 5-10 mph Delta: W/SW 5-10mph turning W/NW by afternoon 5-10mph |
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