|Date: 6-Jul-15||Local Time: 07:29 AM||Meteorologist: Branz|
|Ag Burn Decision Above 3000 ft: Permissive Burn Day (Fair)|
|A.M. Stability (°F) = 8||Wind Speed (mph)||=||9|
|500 millibar height (decameters) = 585||Average Rainfall (in)||=||0|
|Meteorological (MET) Factor||=||0.6|
|Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5)||=||5.1|
|ARB REVISED Basinwide Allocation||_________________________________________||=||3000|
|Tehama||606||0||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 ***
Onshore flow continues this morning as an upper low lurks offshore. Expect temps to run about 5 degrees cooler in most locations today. Otherwise...little change is expected. Dispersion should be better today with continued southerly winds across the entire region.
***Permissive Burn Day***
A gradual cooling trend will continue as the aforementioned upper low drifts slowly inland. Dispersal conditions and air quality should remain fair to good through the week with onshore flow and cooler air aloft associated with the low. As this feature moves across the North State on Wednesday and Thursday, thunderstorms are possible over the higher terrain. We may even see a few storms in the Valley on Wednesday and Thursday.
|Mixing Height Discussion:|
|Valley: Mixing heights will reach 2500-3000 feet by mid-afternoon.
|Valley: Southerly 8-12 mph.
Delta: West to southwesterly 10-20 mph, gusting to 25 mph this afternoon.