Basinwide Ag-Burn Acreage Allocation - Sacramento Valley Air Basin
| Date: 2-Aug-21 | Local Time: 07:00 AM | Meteorologist: Gerber |
| Ag Burn Decision Above 3000 ft: No Burn Day | |||
 |
|||
| A.M. Stability (°F) = 21 | Wind Speed (mph) | = | 10 |
| 500 millibar height (decameters) = 590 | Average Rainfall (in) | = | 0.0 |
| Meteorological (MET) Factor | = | 0.4 | |
| Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) | = | 4.9 | |
| Allocation Equation: | = | 4467 | |
| ARB REVISED Basinwide Allocation | _________________________________________ | = | 2000 |
| Revised Allocation | _________________________________________ | = | 2000 |
|
||||||||||||||||||
| 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) |
||||||||||||
| Conc | Stn | |||||||||||||||||
|
||||||||||||||||||
| Colusa | 6 | 6 | 1 | 0.17 | 200 | 4 | COL | |||||||||||
|
|
|
||||||||||||||||
| Sutter | 12 | 5 | 1 | 0.17 | 200 | 7 | YUB | |||||||||||
|
|
|
||||||||||||||||
| Butte | 6 | 6 | 1 | 0.17 | 200 | 3 | CIC-GRD | |||||||||||
|
|
|
||||||||||||||||
| Yolo/Solano | 0 | 0 | 1 | 0.15 | 200 | 0 | DAV-WOO | |||||||||||
|
|
|
||||||||||||||||
| Glenn | 7 | 6 | 1 | 0.13 | 200 | 5 | WLW | |||||||||||
|
|
|
||||||||||||||||
| Sacramento | 3 | 4 | 1 | 0.09 | 200 | 3 | SAC | |||||||||||
|
|
|
||||||||||||||||
| Yuba | 12 | 5 | 1 | 0.07 | 200 | 7 | YUB | |||||||||||
|
|
|
||||||||||||||||
| Placer | 8 | 7 | 1 | 0.05 | 200 | 7 | ROS | |||||||||||
|
|
|
||||||||||||||||
| Tehama | 7 | 8 | 1 | 200 acres unless reduced by PM |
200 | 6 | RBL | |||||||||||
|
|
|
|
|||||||||||||||
| Shasta | 7 | 4 | 1 | 200 | 4 | AND | ||||||||||||
|
||||||||||||||||||
|
||||||||||||||||||
| 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%) |
||||||||||||||||||
|
||||||||||||||||||
| ARB Comments | ||||||||||||||||||
|
||||||||||||||||||
| Cautionary Comments: | ||||||||||||||||||
| *** Permissive Burn Day *** *** Ozone Fcst EXCEEDS 100 (101 AQI). No Burn for SFONA affected districts, counties, and zones *** *** Fire Update: Dixie Fire ~248,820 acres @ 35% containment. Not much change from Sunday...Pleasantly quiet weather wise with seasonal temps, sunny to hazy skies and good mixing. A developing weak trof just off the coast will continue to deepen the marine layer along the coast and help keep the Delta flow up the valley today and for much of the week. 24hr Outlook *** Ozone Fcst EXCEEDS 100 (119 AQI). No Burn for SFONA affected districts, counties, and zones *** *** Permissive Burn Day *** For much of the week the state will remain sandwiched in between high pressure over the center of the country and a weak EPAC trof. Dry SW flow aloft will help to keep the monsoonal moisture East of the crest. Good mixing will continue at the surface too as the Delta flow will remain up the valley. |
||||||||||||||||||
|
||||||||||||||||||
| Mixing Height Discussion: | ||||||||||||||||||
| Valley: Mixing heights near 3000 feet by afternoon. |
||||||||||||||||||
|
||||||||||||||||||
| Winds: | ||||||||||||||||||
| Valley: S to SW 5-15 mph Delta: W to SW 10-20 mph gust 25-35 mph. |
||||||||||||||||||
|
||||||||||||||||||
|
||||||||||||||||||