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Photography

Photography and weather

Some cloud families

Cumuliform clouds add energy to any photo. Even photos in black and white benefit from them largely, whether it is for a normal or an HDR photo.

Cumuliform clouds add dynamism to this Abbaye du Mont St-Michel scenery. France (1978)
Cumuliform clouds add dynamism to this Abbaye du Mont St-Michel scenery. France (1978)
Black and white HDR picture of lamp posts installed along the St-Lawrence, Quebec City 2012.
Black and white HDR picture of lamp posts installed along the St-Lawrence, Quebec City 2012.

The stratiform clouds add to the tranquillity and the stability of a photo.

Daytona Beach under stratus clouds in 2011. The end of the afternoon allows the fresh air from the sea to move over the heated land, which helps create few cumulus fractus, visible near the buildings.
Daytona Beach under stratus clouds in 2011. The end of the afternoon allows the fresh air from the sea to move over the heated land, which helps create few cumulus fractus, visible near the buildings.

Clouds including a stratiform and cumuliform components (stratocumulus) produce an effect that is more energizing than the simple stratus, while avoiding the explosion of energy of the cumuliform clouds.

A stratocumulus adds to this otherwise peaceful scenery captured on board the Lyria train between Paris and Geneva in 2013.
A stratocumulus adds to this otherwise peaceful scenery captured on board the Lyria train between Paris and Geneva in 2013.

The cold front

The approach of a cold front enhances the possibility of interesting photos. If it is a fast moving cold front of moist and unstable air, the photos will probably be more spectacular, as some thunderstorms will be associated with the system. A dew point of more than 15 C indicates the presence of a lot of water vapor which can be transformed into precipitation, thus releasing a lot of energy. When these conditions are combined with a really strong contrast between the new air mass which approaches and the one which goes away, the produced meteorological phenomena will certainly be intense.

In the photos below, the meteorological system approaching the Quebec Jean-Lesage international airport also had to cross a small mountain range.

A roll arcus cloud in development ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012.
A roll arcus cloud in development ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012.
A roll arcus cloud in development ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012.
A roll arcus cloud in development ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012.
View under a developing arcus cloud at the Quebec Jean-Lesage international airport (2012)
View under a developing arcus cloud at the Quebec Jean-Lesage international airport (2012)
An arcus cloud ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012
An arcus cloud ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012
A roll arcus cloud ahead of a thunderstorm heading for Quebec City in 2012
A roll arcus cloud ahead of a thunderstorm heading for Quebec City in 2012

The morning fog

The morning fog offers many opportunities for interesting photos. You can choose an isolated tree and capture the combined effects of the morning sun and fog. Or you may choose a cluster of trees, for a completely different effect. Both photos below were taken in Domaine Cataraqui, Quebec City.

Trees in fog at Domaine Cataraqui, Quebec City 2009
Trees in fog at Domaine Cataraqui, Quebec City 2009
Sun and fog provide for a special atmosphere at the Domaine Cataraqui, Quebec City 2009
Sun and fog provide for a special atmosphere at the Domaine Cataraqui, Quebec City 2009

A morning fog resulting from a cold cloudless night will persist for hours if there is no wind. The cold morning air, motionless over a slightly hotter stretch of water, creates a fog that will finally disappear just before noon, when the atmosphere has been heated enough. If there had been an overcast sky during the night, chances are that the air over the water would have remained at a higher temperature, preventing the formation of fog.

The opportunities for more interesting photos arise when you witness the first holes in the fog layer.

The Ocean tugboats during a dense fog in the Bassin Louise in Quebec (2012).
The Ocean tugboats during a dense fog in the Bassin Louise in Quebec (2012).

We can take into account the season to estimate the speed of the diurnal reheating of the lower atmosphere. A morning fog will need more time to dissipate from late autumn to early spring: that leaves more time for the photographer to prepare. The forecasts can announce the disappearance of fog while it will not be the case if, over your sector, there is an invading layer of stratocumulus preventing the morning sun from reaching the ground.

To determine if the fog is going to dissipate as expected or will remain and possibly intensify, watch the difference between the temperature and the dew point on the hourly meteorological observations issued by weather stations near your place of residence. If the temperature and dew point spread increases, the fog is going to lift. If the difference between those two decreases, the fog is going to persist and possibly intensify.

The mist

The mist can be qualified as such when the visibility is superior to ½ mile, but do not exceed 6 miles for an observer on the ground. If the visibility is of ½ mile or less, it is called fog. This photo of the Bic National Park, near Rimouski, shows the interesting effect that the mist adds to a beautiful landscape.

Mist in the Bic National Park, Province of Quebec (2009)
Mist in the Bic National Park, Province of Quebec (2009)

Hot and unstable air in winter

When there is a warm and unstable air advection (about 0 degrees) while winter has already settled, there are good opportunities for photos. A moderately developed cumulus produces significant snow showers and this snow sticks on all the surrounding objects. All that snow would have begun to melt on contact of objects if the latter had had a temperature superior to zero degree. But, the winter being already settled, the snow persists. It gives enough time to capture some souvenirs.

A Quebec City street after a snow shower
A Quebec City street after a snow shower

The local effects

A photographer might benefit from learning about the meteorological local effects influencing the regions he intends to visit. The local effects are often simple to understand and they repeat themselves regularly, according to wind and season changes. The knowledge of these effects allows the photographer to be ready and position himself even before the phenomenon occurs. It limits the comments like: “If I had known that it would occur, I would have settled down here one hour earlier!

The local terrain as well as large size bodies of water produce predictable meteorological phenomenon that can be used by a well prepared photographer. It can consist of persistent fog, repetitive snowstorms over a small sector, strong winds, cumuliform clouds alongside the mountain summits, etc. By being positioned at the right place, at the right time, the desired photo can be realized.

A change in the wind direction

A change in the wind direction suddenly increases the opportunities of interesting photos. It might announce the approach of a cold front, a warm front, a sea or land breeze, etc. In the photo below, a bit of fresher air suddenly began crossing the St-Lawrence seaway at the end of the day, thanks to the approach of a weak cold front. The water was still relatively warm and the moisture which was present over the surface became visible due to the cool air supply. The conditions were now ideal for a short-term thin fog, as long as the wind speed would not increase. Just in time for a photo.

The new wood pellets silos in Anse au Foulon in Quebec City en 2014
The new wood pellets silos in Anse au Foulon in Quebec City en 2014

Familiarization with weather radars

It can be useful to get acquainted with weather radars which, for the needs of photography, remain simple to interpret. Multiple echoes of small dimension with a steep gradient of various colors indicate precipitation resulting from cumuliform clouds. The showers associated with these clouds are often moderated or strong and will be the result of approaching towering cumulus or cumulonimbus (thunderstorms). A towering cumulus presents a dark base and a white summit to the photographer. At sunset, their vertical development can be used to emphasize the last rays of light.

The side of a towering cumulus (TCU) is benefiting from the remaining sunlight over Quebec
The side of a towering cumulus (TCU) is benefiting from the remaining sunlight over Quebec

Large echo areas of similar colors of low intensity indicate a relatively stable air generally producing steady light rain or drizzle. This should be understood as a possibility of increased humidity limiting the visibility through mist or fog.

Hoar frost

Hoar frost is a short-term phenomenon. It is thus necessary to capture the scene before the sun melts everything. The photo below shows some small twigs on which hoar frost has settled. It was taken at the beginning of the seventies. Although the quality of the photo is not exceptional, the meteorological phenomenon is well demonstrated.

A combination of snow and hoar frost observed on a Quebec field in 1976.
A combination of snow and hoar frost observed on a Quebec field in 1976.

Forest fires

Wishing to make photos of western Canada during summer 2014, I came up against a season where hundreds of forest fires were raging. The smoke was covering some parts of Alberta and British Columbia. Some fires were important enough to require the closure of the sole highway connecting Lake Louise to Jasper. I thus decided to include the effects of those fires in the holiday souvenirs.

A visibility reduced in forest fire smoke allows a photographer to obtain, without special editing, sunsets with interesting colors.

Sunset and smoke from forest fires in Kamloops in 2014
Sunset and smoke from forest fires in Kamloops in 2014

The smoke also produces an effect similar as fog, but a fog which would be impossible to obtain at the end of a summer afternoon while the sun shines and there is a 38 degrees Celsius temperature.

An area near Kamloops, Canada, that was touched by forest fires in 2014
An area near Kamloops, Canada, that was touched by forest fires in 2014

At dusk, the residual smoke is visible near tree tops while the setting sun strikes the mountain side. The effect is of two horizontal lines of complementary colors, blue and orange.

Forest fire smoke and sunset combined in Lake Louise, Alberta en 2014
Forest fire smoke and sunset combined in Lake Louise, Alberta en 2014

Metar decode and description

Metar Decode and Description
Metar Decode and Description

Significant Present Weather Codes

Significant Present Weather Codes
Significant Present Weather Codes
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Real life stories as a flight service specialist (FSS): Inukjuak FSS

A kitchen used as a navigation aid to aviation in Inukjuak

(Precedent story: the UFO invented in Inukjuak in 1983)

Inukjuak during a blizzard that forbid landings for days.
Inukjuak during a blizzard that forbid landings for days.

The winter 1982-1983 was fierce in Inukjuak (CYPH), in the Nunavik. There was a period when the winds were strong enough and the visibility reduced to the point that a rope had to be attached between the staff house and the flight service station. A Transport Canada flight service specialist (FSS) had to hold a rope to guide himself from one building to the other. And good luck to the FSS who would try to carry his meal on a tray between both buildings. A hand held the rope while the other one took care of the tray which was going in all directions. On one occasion, tray and food found their way in the snowbank.

Due to strong sustained winds, snow sometimes reached the roof top of the Inukjuak flight service station.
Due to strong sustained winds, snow sometimes reached the roof top of the Inukjuak flight service station.

After a storm which seemed endless, I remember that the employees had to dig steps in the hardened snow in order to reach the flight service station door.

We sometimes had to dig in the snow to free the door and enter in the Inukjuak flight service station
We sometimes had to dig in the snow to free the door and enter in the Inukjuak flight service station

This blizzard, which lasted twelve days, had prevented any takeoff and landing. There was no more milk for sale in the Inuit village, as it was now reserved for children. Hardly one hundred feet over us, there was a perfectly blue sky, according to the pilots who had tried to land on multiple occasions. But one morning, an Austin Airways pilot decided to risk an approach.

A red square was useful to help the employees find a building during a blizzard in Inukjuak.
A red square was useful to help the employees find a building during a blizzard in Inukjuak.

The pilot could not benefit from any precise navigation aid during his approach, as the airport was only equipped with an NDB. So he trusted his local knowledge and what was left of his judgment. He knew that the staff house was painted green and situated just beside the runway. I guess that he prepared himself to aim for the colored staff house then make a sharp turn at the last minute. He dived into the storm, estimating the wind drift as much as he could.

At that same moment, our cook was working in the staff house’s kitchen. He was facing a huge bay window and was stunned to suddenly see the nose of a Twin Otter appear a few meters away from the window at the same time as a steep turn was being made to avoid the building. Reverse thrust was immediately applied to immobilize the plane as fast as possible. The cook repeated what he witnessed to every employee. I guess that helped him to unwind a bit.

As this was not enough surprise for the day, the plane’s doors opened and, instead of the much needed milk cargo expected by the villagers, we witnessed about ten passengers stepping out the plane and chitchatting like nothing ever happened. This unorthodox approach to the Inukjuak airport would now be one more story added on top of all the others told by pilots offering daily air service to northern Quebec villages along Hudson Bay and Ungava Bay coasts.

(Next story: the cockpit of a KLM Boeing 747 during a night flight over the Atlantic)

For more real life stories of a FSS in Inukjuak, click on the following link: Flight service specialist (FSS) in Inukjuak