California Air Resources Board - Meteorology Section
Basinwide Ag-Burn Acreage Allocation & Complaints - Sacramento Valley Air Basin

Date:  1-Oct-14 Local Time:  07:52 AM Meteorologist:  Lancero
Ag Burn Decision Above 3000 ft:  Permissive Burn Day (Fair)    
A.M. Stability (°F) = -2 Wind Speed (mph)  = 16
500 millibar height (decameters) = 576 Average Rainfall (in) = 0.00
Meteorological (MET) Factor   = 1
Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5) = 4.5
Allocation Equation: = 9199
   
ARB/CCO REVISED Basinwide Allocation _________________________________________ = 2000
District Yesterday's
24-Hr Avg
PM2.5
Yesterday's
PM2.5
(0-6 PST)
Reduction
Factor
Yesterday's
PM2.5
MAX
Hour of
Yesterday's
MAX
Avg PM2.5
(0-6 PST)
Conc Stn
Colusa 10 10 1 22 13 5 COL
Butte 7 8 1 18 8 3 CIC-GRD
Glenn 6 11 1 20 3 2 WLW
Placer 13 12 1 18 12 6 ROS
Sacramento 10 11 1 27 19 5 SAC
Sutter 9 12 1 19 8 6 YUB
Yolo/Solano 9 8 1 16 10 3 DAV-WOO
Yuba 9 12 1 19 8 6 YUB
Tehama 6 11 1 20 3 2 WLW
Shasta 10 11 1 22 10 6 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:
*** RESTRICTED FIELDS day ***
Restricted Fields Day due to strong high pressure over the pacific, with tight surface gradients, bringing strong northerly winds and warm temps throughout the valley. Today, expect warm temps in the upper 80s, winds in the N+W valley northerly 15-25mph gusting 30-35mph, winds in the S+E valley northerly 10-20mph gusting 20-25mph, delta winds northerly 5-15mph gusting 20-25mph closer to the valley, and mixing hgts lower at 2000ft by aftn.

24 Hour + Outlook
***Permissive Burn Day***
Lighter wind gradients throughout the valley 5-15mph with N+W tending northerly5-15mph. Warm temps in the low 90s.
Mixing Height Discussion:
Valley: Mixing heights will reach 2000 feet by afternoon.
Winds:
N+W Valley: Strong Northerly 15-25mph, gusting 30-35mph, then lighter gusts by late aftn.
S+E Valley: Northerly 10-20mph, gusting 20-25mph by aftn.
Delta: Northerly 5-15mph, gusting 20-25mph near the sac valley.

Complaints: Col Sut But Yol Gle Sac Yub Pla Teh Sha Total
0-2-Oct-14 0 0 0 0 0 0 0 0 0 0 0
0-1-Oct-14 0 0 0 0 0 0 0 0 0 0 0
0-Oct-14 0 0 0 0 0 0 0 0 0 0 0







Data Table
1-Oct-14 Date
07:52 AM Local Time
Lancero Meteorologist
Permissive Burn Day (Fair) Ag Burn Decision Above 3000 ft
-2 A.M. Stability (°F)
16 Wind Speed (mph)
576 500 millibar height (decameters)
0.00 Average Rainfall (in)
1 Meteorological (MET) Factor
4.5 Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5)
9199 Allocation Equation:
2000 ARB/CCO REVISED Basinwide Allocation