|Date: 30-Apr-16||Local Time: 07:24 AM||Meteorologist: Branz|
|Ag Burn Decision Above 3000 ft: Permissive Burn Day (Fair)|
|A.M. Stability (°F) = -7||Wind Speed (mph)||=||22|
|500 millibar height (decameters) = 564||Average Rainfall (in)||=||0|
|Meteorological (MET) Factor||=||1|
|Air Quality (AQ) Factor (Basinwide 00-06 PST Average PM2.5)||=||5.1|
|ARB REVISED Basinwide Allocation||_________________________________________||=||2000|
|Tehama||4||4||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%)
|*** PRUNINGS ONLY DAY ***
North winds have increased overnight as the pressure gradient tightens in response to an upper low moving south across the region. These winds will become quite gusty this afternoon, especially for the west side of the Valley. The strength of these winds has triggered a Prunings Only Day. Otherwise...expect sunny skies and warmer temperatures this afternoon.
*** Permissive Burn Day ***
The pressure gradient will relax for Sunday as the upper low kicks out into the Desert SW, but elevated north winds will persist through at least the morning hours. High pressure will rebound for Monday, leading to warmer temperatures for early next week. The weather pattern looks dry through Tuesday before another trough pushes into the North State for the Wednesday - Friday timeframe. Some shower and thunderstorm activity is possible with this system, although most of the impacts will be in the higher elevations.
|Mixing Height Discussion:|
|Valley: Mixing heights will reach 2000-2500 feet by afternoon.
|Valley: North to northwesterly 20-25 mph with gusts to 40 mph this afternoon.
Delta: North to northwesterly 20-25 mph with gusts to 40 mph this afternoon.