California Code of Regulations
Title 17 - Public Health
Division 3 - Air Resources
Chapter 1 - Air Resources Board
Subchapter 2 - Smoke Management Guidelines for Agricultural and Prescribed Burning
Article 3 - Meteorological Criteria for Regulating Agricultural and Prescribed Burning
Section 80320 - Tables Referred to in Articles 2 and 3
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Limiting Mean 500-Millibar Heights* by Month |
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| Month | Table 1* | Table 2* | Table 3* |
| January | 5710* | 5750* | 5630* |
| February | 5710 | 5740 | 5620 |
| March | 5710 | 5740 | 5630 |
| April | 5720 | 5760 | 5660 |
| May | 5770 | 5800 | 5710 |
| June | 5820 | 5850 | 5780 |
| July | 5850 | 5880 | 5830 |
| August | 5870 | 5880 | 5840 |
| September | 5850 | 5870 | 5810 |
| October | 5820 | 5850 | 5760 |
| November | 5770 | 5810 | 5700 |
| December | 5730 | 5780 | 5630 |
* All heights in meters.
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Agricultural Burn Meteorological Factors |
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(Sacramento Valley Air Basin) |
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Table 4 A.M. STABILITY |
Table 5 WIND SPEED |
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|
°F |
M.F. |
MPH |
M.F. |
| >= 17 | 0.0 | 0 to 2 | 0.0 |
| 15 or 16 | 0.1 | 3 | 0.1 |
| 13 or 14 | 0.2 | 4 | 0.2 |
| 11 or 12 | 0.3 | 5 | 0.3 |
| 9 or 10 | 0.4 | 6 | 0.4 |
| 7 or 8 | 0.5 | 7 | 0.5 |
| 5 or 6 | 0.6 | 8 | 0.6 |
| 3 or 4 | 0.7 | 9 | 0.7 |
| 1 or 2 | 0.8 | 10 | 0.8 |
| 0 or (-1) | 0.9 | 11 | 0.9 |
| [LESS THAN EQUAL TO] (-2) | 1.0 | >= 12 | 1.0 |
The basinwide meteorological factor (B.M.F.) is equal to the arithmetic mean of the meteorological factors (M.F.) from Tables 4 and 5.
A.M. Stability: 3,000-foot temperature (a.m.) (°F) minus surface minimum temperature (°F).
Wind Speed: Surface to 3,000 feet average wind speed (mph).
1.
Amendment filed 9-30-83; effective thirtieth day thereafter (Register 83, No.
40).
2. Amendment filed 3-14-2001; operative 3-14-2001 pursuant to
Government Code section
11343.4
(Register 2001, No. 11).
Note: Authority cited: Sections 39600, 39601, 41856 and 41859, Health and Safety Code. Reference: Sections 41855, 41856, 41857 and 41859, Health and Safety Code.
