Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 25-May-13 | Local Time: 07:56 AM | Meteorologist: Lancero |
| Ag Burn Decision Above 3000 ft: Permissive Burn Day (Good) | |||
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| A.M. Stability (°F) = 4 | Wind Speed (mph) | = | 5 |
| 500 millibar height (decameters) = 565 | Average Rainfall (in) | = | 0.00 |
| Meteorological (MET) Factor | = | 0.5 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 8.6 | |
| Allocation Equation: | = | 10860 | |
| ARB REVISED Basinwide Allocation | _________________________________________ | = | 4000 |
| Revised Allocation | _________________________________________ | = | 4000 |
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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 | 9 | 9 | 1 | 0.17 | 540 | 11 | COL | |||||||||||
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| Sutter | 8 | 4 | 1 | 0.17 | 540 | 6 | YUB | |||||||||||
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| Butte | 6 | 6 | 1 | 0.17 | 540 | 10 | CIC-GRD | |||||||||||
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| Yolo/Solano | 7 | 6 | 1 | 0.15 | 500 | 8 | DAV-WOO | |||||||||||
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| Glenn | 7 | 5 | 1 | 0.13 | 460 | 12 | WLW | |||||||||||
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| Sacramento | - | - | 1 | 0.09 | 380 | - | SAC | |||||||||||
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| Yuba | 8 | 4 | 1 | 0.07 | 340 | 6 | YUB | |||||||||||
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| Placer | 7 | 6 | 1 | 0.05 | 300 | 9 | ROS | |||||||||||
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| Tehama | 7 | 5 | 1 | 200 acres unless reduced by PM |
200 | 12 | WLW | |||||||||||
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| Shasta | 11 | 3 | 1 | 200 | 5 | 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 *** Long wave trof still over the west with shoft waves moving thru. Today, expect similar pleasant conditions with light and variable winds 3-5mph turning light southerly 5-10mph by aftn, delta winds stronger onshore 10-15mph gust 20-25mph by aftn, temps in the upper 70s to lower 80s, and mixing hgts reaching 3000ft+ by noon. Good dispersal conditions. 24hr Outlook ***Permissive Burn Day*** A weak wave moves thru on on sun, but keeping any precip to the OR border. Another more robust wave will come for the Mem day afternoon into tue, with chances of precip, though light. |
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| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights will reach 3000ft+ by afternoon. |
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| Winds: | ||||||||||||||||||
| North Valley: L+V 3-5mph slight northerly drainage, then southerlyu 5-8mph by mid aftn. SouthValley: L+V 3-5, then light southerly 5-10mph by late morning. Delta: SW10-15 mph gusting 20-25mph by early afternoon. |
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