WeatherManila

How cool is this! Nasa DC8 cockpit takeoff

looks like the landfill fire emissions serving as cloud condensation nuclei (seeding cloud formation downstream)

Mist is water still in liquid form, not gas/vapor/humidity, and its easy evaporation is what cools you

It's gonna be hot today

3-day particulate matter forecast (Apr 24-26). Easterlies will pick up starting this afternoon and will push the pollutants lingering off the west Luzon coast southwestward.

the relatively strong north winds along the West PH Sea tomorrow (Apr24) will finally disperse the accumulated pollutants lingering along the western coast of Luzon for many days now. There are still some emissions today, fewer compared to previous days, but still hazardous

forecast particulate dist. frm tod(Wed) til Fri. Strong easterlies will mainly push emissions to the western seas in the next 2 days. Hazy/poor air quality conditions along the northwestern Luzon coasts, as previous days' emissions are lingering around the northern West PH Sea

meanwhile, Asian dust / kosa transport to northern Japan (20260421_830PST)

forecast particulates for today (Apr21) and tomorrow (Apr22) show strong east winds will disperse pollutants from NCR today and tom, however, downwind regions such as Bataan and Zambales may experience elevated levels of pollutants before they are transported to the West PH Sea

AOT ~>1 means polluted

We wrote a paper on this Indochina transport by mid-level westerlies doi.org/10.1016/j.atmo… - Expect redder sunsets

There are 2 air pollution events currently happening in the region. The week-long Navotas fire, together w/ persistently weak easterlies, has spread across the northern half of PH (yellow). Then, burning from Indochina is being transported to the Pacific aloft (~3-4km high; red)

while looking at satellite images of the Navotas fire, it's heartbreaking to see that environmentally taxing effin new airport has gotten so large that cloud convection is literally happening on it. Pati sa tabi ng MOA, area is comparable to Sangley Point already,so disappointing

(20260419) Simulated/forecast pollutant dispersion for today (Sun) and tomorrow (Mon), assuming landfill emission continues.

In Apr-May, sea breeze, high boundary layer height, and turbulent mixing make NCR air qual good.Despite the robust PBL height and mixing in recent days,the extreme emissions of the landfill fire can't be dispersed fast enough. Our paper on this process doi.org/10.1016/j.apr.…

(20260418) forecast (init last night) vs observed plume from Navotas fire - close enough, main plume is southwestward and smoke outflow to W_PH_Sea appears to be consistent with satellite (yellow dash). Smoke further west (pink dash) likely from yesterday's emission b4 model init

Plume from last nyt until later tonyt, strong W breeze this pm may increase pollutant levels for most of NCR. Poor air quality will persist in SW Bulacan.Been a week already,apart frm heat exacerbating the fire,the landfill is on an island not easily accessible to firefighters.

(20260417) emerging sea breeze this mid-morning is bringing the Navotas smoke inland, now in northern NCR (CAMANAVA), and later will include the southern Manila Bay side area. Wearing a mask would be really helpful.

There are still emissions this morning, but look a bit lower compared to previous days.

Sim. of Navotas landfill fire frm Sat(Apr 11)am-Tue(Apr 14)pm. Westerly sea breeze pushed the pollutants east to northern QC daytime Sat and Sun,while NW breeze on Mon noon brought pollutants to NCR (northern half, super hazy and smells like burnt plastic where I was Mon)

(20260415) smoke from the Navotas landfill today is comparatively less than in previous days. SE to ESE winds over NCR are pushing the smoke towards northern Manila Bay this am