Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 31-May-20 | Local Time: 07:21 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) | = | 6 |
| 500 millibar height (decameters) = 570 | Average Rainfall (in) | = | 0.11 |
| Meteorological (MET) Factor | = | 0.7 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 3.4 | |
| Allocation Equation: | = | 8995 | |
| ARB REVISED Basinwide Allocation | _________________________________________ | = | 3000 |
| Revised Allocation | _________________________________________ | = | 3000 |
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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 | 2 | 0 | 1 | 0.17 | 370 | 2 | COL | |||||||||||
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| Sutter | 5 | 6 | 1 | 0.17 | 370 | 5 | YUB | |||||||||||
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| Butte | 4 | 4 | 1 | 0.17 | 370 | 3 | CIC-GRD | |||||||||||
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| Yolo/Solano | 3 | 3 | 1 | 0.15 | 350 | 3 | DAV-WOO | |||||||||||
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| Glenn | 6 | 6 | 1 | 0.13 | 330 | 0 | WLW | |||||||||||
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| Sacramento | 2 | 0 | 1 | 0.09 | 290 | 4 | SAC | |||||||||||
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| Yuba | 5 | 6 | 1 | 0.07 | 270 | 5 | YUB | |||||||||||
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| Placer | 4 | 2 | 1 | 0.05 | 250 | 4 | ROS | |||||||||||
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| Tehama | 4 | 3 | 1 | 200 acres unless reduced by PM |
200 | 3 | RBL | |||||||||||
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| Shasta | 3 | 0 | 1 | 200 | 3 | 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: | ||||||||||||||||||
| *** Due to current circumstances, forecasts may experience delays. We apologize for any inconvenience. Should you have any questions email the forecaster at armet1@arb.ca.gov or leave a message at 916-322-6014 and someone will get back to you as soon as possible *** *** Permissive Burn Day *** The deep closed low that brought the active weather on Saturday has since moved through. Most of us just receiving a sprinkle with some thunder and lightning mixed in, while most of the North and East sides of the valley and foothills experienced some persistent rains on Saturday. A few elevated showers and thunderstorms today as some instability lingers under a broad region of SW flow aloft. Dispersion will remain good today with increasing SW flow by afternoon. 24hr Outlook *** Permissive Burn Day *** This week a broad low pressure circulation will remain off the Southern California coast with SW to SE flow overhead and warming temps near 100 by Tuesday and Wednesday. By the weeks end a Gulf of Alaska system will dig south and kick the SoCal low out and introduce the potential for more showers and thunderstorms by Friday and the weekend. Dispersion will remain good throughout the extended. |
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| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights will reach 3,000 feet. |
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| Winds: | ||||||||||||||||||
| Valley: L/V this morning becoming SE/SW 5-10 mph Delta: W/SW 10-15 mph |
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