|Date: 24-Aug-16||Local Time: 07:30 AM||Meteorologist: Mims|
|Ag Burn Decision Above 3000 ft: Marginal Burn Day|
|A.M. Stability (°F) = 20||Wind Speed (mph)||=||5|
|500 millibar height (decameters) = 589||Average Rainfall (in)||=||0|
|Meteorological (MET) Factor||=||0.15|
|Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5)||=||7.2|
|ARB REVISED Basinwide Allocation||_________________________________________||=||2000|
|Tehama||8||6||1|| 200 acres
|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%)
| *** Permissive Burn Day ***
***The ozone forecast EXCEEDS 100 AQI. It is a No-Burn day only for the SFONA affected zones***
Not much change! High pressure with a touch of toughing continues over the region. This can be as seen through the cooler but stable air as onshore flow brings in marine air, but the inversion pattern will keep mixing at a minimum (high AQI). That being said, the flow aloft remains more northerly so less haze again. Caution remains for stable air this afternoon and quickly collapsing mixing heights.
*** Permissive Burn Day. ***
More of the same tomorrow as weak troughing brings a subtle cool down going into the weekend. Less certainty overall as guidance keep some troughing over the region, but the extent to which is in question.
|Mixing Height Discussion:|
|Valley: Mixing heights will reach over 1,500 feet by afternoon.
|Valley: South-Southeasterly 2-7 mph
Delta: Southwesterly 5-15mph.