Fire! . . . Again

This article is three years old, but is relevant annually until the end of fire season.

Tony Tomeo

P71018“It’s not nice to fool Mother Nature.” That old margarine commercial was lame back in the 1970s, but the quote is so true. Inadvertent interference with the natural process of wildfires has unfortunately increased the combustibility of the flora of forests and wildlands throughout California. No one really meant to interfere with the process. It is just what happens when we need to protect our homes and properties from fire.

The longer the vegetation is deprived of fire, the more overgrown and combustible it becomes. If deprived of fire long enough, many plants start to succumb to insect infestation and disease, and they become more combustible as they deteriorate and die. To make matters worse, so many of the exotic (non-native) plants that have been introduced into California are just as combustible, and some are even more combustible than native flora!

Combustibility is certainly no accident on their part. It…

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CZU Lightning Complex Fires

Lightning is very rare here. For half of the year between spring and autumn, rain is also very rare. Summers are long and dry. Weirdly though, if a storm passed through between spring and autumn, it usually involves lightning, and is usually within only a few days of the Feast of the Assumption, on August 15. This time, it arrived just about an hour after midnight on August 16.

It was warm that night, so the windows were open at home. There was a gust of wind in the cottonwoods that sounded like the Santa Ana Winds of the Los Angeles region, and the electricity went out, likely because the same gust knocked a tree onto cables elsewhere. The lighting might have started earlier, but became visible without electrical lights outside. I heard no thunder.

Lightning worries us while the weather is so warm and dry. It came without rain. Previously, humidity had been minimal. There was a faint aroma of smoke in the morning, but nothing was mentioned about fires during the day. That was Sunday. Monday was warmer and less humid, and smelled notably smokier as I left for the Santa Clara Valley, where I have been since then.

Fires that were started by the lightning in Bonny Doon was finally mentioned in the news on Tuesday, but did not seem to be a major concern. By the next morning, Boulder Creek was being evacuated! Brookdale and Ben Lomond were evacuated later on Wednesday. By this morning, Felton and everyone at work were being evacuated! Scott’s Valley and environs could be next!

It all happened so fast and I am miles away. Even if I were not miles away, I would need to go miles away with everyone else who was evacuated. I was told that ash and burned leaves were falling from the sky around my home this morning. I have never seen so much smoke over the Santa Cruz Mountains, or filling the sky of the Santa Clara Valley. I hope to never see it again.

This reblogged post is from my other blog at ‘Felton League’.

via CZU Lightning Complex Fires

Six on Saturday: Fire Season

 

California really does have the same four seasons that the rest of America has. They just happen to be somewhat subdued in some of the milder climates. The rumor that California has only two seasons, summer and a few days of not-summer, is completely inaccurate. In fact, besides the traditional four season, we have a fifth season that overlaps at least summer and autumn. It reality, this season never ends. It is always ‘fire season’.

Like any other season, fire season affects how we garden here. We prefer to grow plants that are less combustible, which is often contrary to the preference for native specie. In suburban and rural areas, we must manage native vegetation and keep it away from our homes and other buildings. When the weather gets smoky from forest fires, some of us postpone gardening chores for healthier weather.

The Rincon Fire near Paradise Park (not to be confused with Paradise) burned for a few days a week and a half ago, and filled the Valley with thick smoke. By the time that smoke cleared out, smoke moved in from the Camp Fire that burned Paradise more than two hundred miles to the north. Smoke from the Woolsey Fire and the Hill Fire that both started on the same day in Los Angeles and Ventura Counties stayed to the south. The Bear Fire, which was the second relatively small forest fire in our region, started and was contained just yesterday, just a few miles outside of Boulder Creek. Most of us were not aware of it until after it was contained.

Incidentally, a 50% chance of rain is predicted for next Wednesday.

1. Clear blue sky finally appeared on Thursday morning.P81117

2. The orange moon demonstrates how smoky the sky was on the previous evening. It is not easy to zoom in and get a good picture of the moon.P81117+

3. Ponderosa pine forests are the more combustible parts of our region. The darker understory is a mix of coast live oak, canyon live oak, madrone and other chaparral flora. The dead ponderosa pine that I got a picture of for ‘Six on Saturday: Dia de los Muertos’ is to the right in this picture. Sunsets were spectacularly colorful before the smoke blew away. I can not explain why the color was so bland when this picture was taken.P81117++

4. Our debris pile continues to accumulate more biomass from the landscapes and surrounding forests. It is not yet big in this picture. It will get significantly bigger before it gets taken away. Once gone, we start the process all over again. It never ends. There is so much forest out there, and we are constantly trying to keep it away from the buildings.P81117+++

5. These numbers on the side of my work vehicle allowed the volunteer firefighter who used to drive it to go into areas that had been evacuated ahead of forest fires. Several of our vehicles are outfitted with these decals.P81117++++

6. This is the picture that you probably did not want to see. It is what remains of the home of one of my colleague’s clients in Malibu after the Woolsey Fire moved through. The front garden was exquisite. The home was even better.P81117+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

RAIN!?

10914This is not sequel to ‘SNOW!?’ from yesterday.

Nor is it a sequel to any of the other brief article about rain in the past.

I just recycled the picture because I still find it to be amusing.

If you are a native of California like I am, and are wondering what ‘rain’ is; I have already explained it sufficiently in previous articles. Basically, it is those unfamiliar droplets of water that fall mysteriously from the sky and get everything wet. Look it up if you must.

The article that I posted earlier this morning was recycled from this time last year, long before I started posting articles here. Our rain has actually been very deficient. It has rained only a few times this season.

We tend to talk about rain often here because it is so important to us. So much of California gets such a limited supply. Although our annual rainfall is technically sufficient, and has been sufficient longer than anyone can remember, there are millions of people living here who need the water that it provides. Fluctuations of weather are normal, but are somewhat distressful for those of us who are aware of how weather affects the water supplies that rely on rainfall. Much of the population of California gets water from surprisingly remote sources that are much more reliable than local sources. However, some regions rely on local aquifers that are sustained by local rainfall.

The ‘mostly’ good news for now is that is it raining presently. Seriously! It is raining; and is expected to continue raining through Saturday.

I say that this is ‘mostly’ good news because so much rain within a short time is likely to be disastrous to areas burned by wildfires just a few months ago. Floods and mudslides could, and are actually expected to cause significant damage near Montecito and in other areas of Santa Barbara and Ventura Counties. Highway 101 could be closed again.

We just can’t seem to get it right. If we get enough rain, vegetation in wildlands becomes more combustible. If the combustible vegetation burns, the burned area is more susceptible to mudslides and flooding if we get enough rain again in the subsequent season. So, major wildfires, as well as mudslides and floods, are less likely if we do not get enough rain. If we get enough rain, we are more likely to get a messy situation.

Santa Ana Winds

P71221+They have been a part of life in Southern California longer than anyone can remember. The Santa Ana Winds have been blowing down from the high deserts to coastal plains long before people arrived in the region. They are arid and usually warm before they leave the Great Basin and Mojave Desert, and they get even warmer as they flow downhill through mountain passes. That is what makes them so dangerous during fire season. Wind alone accelerates wildfire. Warming arid wind desiccates fuel, making it more combustible before wildfire arrives.

Santa Ana Winds are so regular that they affect how tall trees grow within the regions of the mountain passes where Santa Ana Winds move the fastest. Tall Mexican fan palms that grew up straight where sheltered from wind near the ground innately lean with the prevailing wind as they grow up and become more exposed. Those closer to the narrow canyons lean the most. It is something that arborists recognize everywhere around the Los Angeles Basin. They can tell how strongly the Santa Ana Winds blow in any particular neighborhood by how Mexican fan palms lean.

Santa Ana Winds can be strong enough to break tree limbs, and blow trees down. In the past few days, they have been making quite a mess in the Los Angeles region; although not as much of a mess as they are making in conjunction with the Thomas Fire in Santa Barbara and Ventura Counties, which may already be the biggest wildfire in the modern history of California.

Overnight, Santa Ana Winds blew this California pepper tree onto a swimming pool in Los Angeles. Tree services, landscapers, gardeners and those who enjoy gardening will be busy cleaning up such problems for the next few days, as Santa Ana Winds continue.

Fire! . . . Again

P71018“It’s not nice to fool Mother Nature.” That old margarine commercial was lame back in the 1970s, but the quote is so true. Inadvertent interference with the natural process of wildfires has unfortunately increased the combustibility of the flora of forests and wildlands throughout California. No one really meant to interfere with the process. It is just what happens when we need to protect our homes and properties from fire.

The longer the vegetation is deprived of fire, the more overgrown and combustible it becomes. If deprived of fire long enough, many plants start to succumb to insect infestation and disease, and they become more combustible as they deteriorate and die. To make matters worse, so many of the exotic (non-native) plants that have been introduced into California are just as combustible, and some are even more combustible than native flora!

Combustibility is certainly no accident on their part. It is part of their ecology. Very few woody plants that are native to California even try to survive fire. The two specie of redwoods protect themselves with thick noncombustible bark so that they can recover from fire, even if much of the foliage gets burned away. Desert fan palms also recover after fire, after fueling it with their very combustible old fronds in order to incinerate competing specie. They are experts on this sort of ecology!

Most plants specie are neither so determine to survive fire, nor so creative in exploiting it as the desert fan palm is. They just live and die with it, only to regenerate and start the process all over again. Many release their seed as they burn. Some pines protect their seed within thick cones that open to disperse seed afterward. Seed of some specie need to be scarified by heat to germinate only after fire. Everyone want to be the first to exploit new real estate freshly cleared by fire, and they are always working on techniques to give them an advantage.

The problem with these processes is that they are not compatible with our lifestyles. As several big wildfires continue to burn throughout Southern California, another fire started early this morning just east of the Sepulveda Pass of the San Diego Freeway in Bel Air.