Winter 2017-18
#376
Re: Winter 2017-18
How to measure snowfall is always a difficult subject. Naturally an airport will also have less snow if you have to keep a runway clear and I doubt they actually really make an effort to measure the area with most lying snow. Measuring rain is obviously a lot easier as you can use a rain gauge.
I think snow depth is measured with sticks placed in the ground but snow accumulation is done with gauges similar to a rain gauge.
In most places the actual snow on the ground would be hard pressed at any one time to more than 30% of annual snowfall. eg. Ottawa today the maximum snow on the ground was 75 cm and our average snowfall is 235 cm I think.
#377
Re: Winter 2017-18
How to measure snowfall is always a difficult subject. Naturally an airport will also have less snow if you have to keep a runway clear and I doubt they actually really make an effort to measure the area with most lying snow. Measuring rain is obviously a lot easier as you can use a rain gauge.
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres"."
So they'll measure it at an airport in a place where they are not continually plowing it away.
In my area, elevation is key to snowfall. So what the airport reports will be different to downtown & out where I live. Hell, I get more snow than my M-i-L who lives on the same street 2km away and 100m lower!
#378
Lost in BE Cyberspace
Joined: Feb 2013
Posts: 6,148
Re: Winter 2017-18
You think they send a guy out on the runway with a ruler? Whether it's an airport or not, snowfall is measured in the same way. From EC: "At Environment Canada, snow is measured by automated observing stations which register the snowfall and snow-on-ground amounts, using an acoustic snow sensor (SR-50). The automated sites report snowfall amounts hourly in centimetres.
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres"."
So they'll measure it at an airport in a place where they are not continually plowing it away.
In my area, elevation is key to snowfall. So what the airport reports will be different to downtown & out where I live. Hell, I get more snow than my M-i-L who lives on the same street 2km away and 100m lower!
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres"."
So they'll measure it at an airport in a place where they are not continually plowing it away.
In my area, elevation is key to snowfall. So what the airport reports will be different to downtown & out where I live. Hell, I get more snow than my M-i-L who lives on the same street 2km away and 100m lower!
At Environment Canada, snow is measured by automated observing stations which register the snowfall and snow-on-ground amounts, using an acoustic snow sensor (SR-50). The automated sites report snowfall amounts hourly in centimetres.
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres".
Also note that snowfall amounts are not measured at a number of Environment Canada and partner’s stations as the automated equipment is not capable of this measurement.
So the questions is if it's staffed or not and even actually officially measured.
#379
Re: Winter 2017-18
Exactly, it's not reliable:
At Environment Canada, snow is measured by automated observing stations which register the snowfall and snow-on-ground amounts, using an acoustic snow sensor (SR-50). The automated sites report snowfall amounts hourly in centimetres.
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres".
Also note that snowfall amounts are not measured at a number of Environment Canada and partner’s stations as the automated equipment is not capable of this measurement.
So the questions is if it's staffed or not and even actually officially measured.
At Environment Canada, snow is measured by automated observing stations which register the snowfall and snow-on-ground amounts, using an acoustic snow sensor (SR-50). The automated sites report snowfall amounts hourly in centimetres.
At staffed stations, the snow amount or the depth of accumulated snow-on-ground is measured using a snow ruler or a ruler calibrated to centimetres. The measurements are made at several points which appear representative of the immediate area, and then averaged. Snow is normally measured in "centimetres".
Also note that snowfall amounts are not measured at a number of Environment Canada and partner’s stations as the automated equipment is not capable of this measurement.
So the questions is if it's staffed or not and even actually officially measured.
#381
Account Closed
Joined: Jan 2006
Posts: 0
Re: Winter 2017-18
And in Vancouver the airport tends to be warmer, get less snow, and less rain vs the other areas, and of course the airport isn't in Vancouver, but Richmond.
Here in this area most 'official' weather stations are at airports. Gatineau airport is often much colder earlier on a clear winter morning than Ottawa airport and it is due to soils, proximity to the river and nearby woods.
I think snow depth is measured with sticks placed in the ground but snow accumulation is done with gauges similar to a rain gauge.
In most places the actual snow on the ground would be hard pressed at any one time to more than 30% of annual snowfall. eg. Ottawa today the maximum snow on the ground was 75 cm and our average snowfall is 235 cm I think.
I think snow depth is measured with sticks placed in the ground but snow accumulation is done with gauges similar to a rain gauge.
In most places the actual snow on the ground would be hard pressed at any one time to more than 30% of annual snowfall. eg. Ottawa today the maximum snow on the ground was 75 cm and our average snowfall is 235 cm I think.
#384
Re: Winter 2017-18
There once was a boy from Quebec
Who was buried in snow to his neck
When asked "Are you friz?"
He replied "Yes, I is,
But we don't call this cold in Quebec."
Who was buried in snow to his neck
When asked "Are you friz?"
He replied "Yes, I is,
But we don't call this cold in Quebec."
#385
Re: Winter 2017-18
We rent a snow shelter for our driveway. The guys come and put it up and then come back a few months later to take it away.
This time, the guys were putting mine up and watching our neighbour try to put his own up. He was struggling. They took pity, strolled across the road and had his up in about ten minutes.
This time, the guys were putting mine up and watching our neighbour try to put his own up. He was struggling. They took pity, strolled across the road and had his up in about ten minutes.
#386
Lost in BE Cyberspace
Joined: Nov 2011
Location: Somewhere between Vancouver & St Johns
Posts: 19,866
Re: Winter 2017-18
OMFG how will they survive
Snow has blanketed parts of Britain as forecasters predict an icy blast will send temperatures plummeting to -4 degrees Celcius overnight.
This comes as The Met Office warned that sub-zero temperatures next week could bring major travel disruptions to Scotland, Northern Ireland and parts of the south.
In the coming days forecasters are saying a prolonged cold spell is imminent. Those in the north and south should expect to see the coldest temperatures so far this winter.
I wish our weather was plummeting to minus 4C then Id be out in a t shirt and light jacket
For the record it currently minus 27C but feels like minus 40C but we are expecting it to be sunny today. Oh and there is the Extreme Cold warning In Effect which basically means don't try licking any lampposts or metal poles today.
Snow has blanketed parts of Britain as forecasters predict an icy blast will send temperatures plummeting to -4 degrees Celcius overnight.
This comes as The Met Office warned that sub-zero temperatures next week could bring major travel disruptions to Scotland, Northern Ireland and parts of the south.
In the coming days forecasters are saying a prolonged cold spell is imminent. Those in the north and south should expect to see the coldest temperatures so far this winter.
I wish our weather was plummeting to minus 4C then Id be out in a t shirt and light jacket
For the record it currently minus 27C but feels like minus 40C but we are expecting it to be sunny today. Oh and there is the Extreme Cold warning In Effect which basically means don't try licking any lampposts or metal poles today.
#387
Re: Winter 2017-18
It's good to hustle out there and plug the van in at 4 in the morning, invigorating, gets the blood going.
#388
Lost in BE Cyberspace
Joined: Nov 2011
Location: Somewhere between Vancouver & St Johns
Posts: 19,866
Re: Winter 2017-18
Plus if you have a dog you are killing 2 birds with one stone so to speak. Plus don't wear mitts/gloves and then crawl back into bed and share the experience with the wife/husband/partner or drunken unknown person in your bed
#389
Re: Winter 2017-18
40 years ago on the section gang, I got a call from my foreman after midnight to come out and fix a broken rail north of town. It was freezing cold but I was assured the job wouldn't take the whole 3 hour call because a notoriously motivational foreman would be in attendance. About 2 1/2 hours later I returned to my lodgings in the rooming house where my girlfriend was sleeping peacefully..... I was so cold my feet were like blocks of ice, and I thought, "You know, she doesn't really appreciate what I go through sometimes.." Don't know what got into me, but I removed my boots and skidoo suit in the hall, unlocked the door, undressed quickly and crept into bed without waking her, then I doubled up and put the soles of both feet on the small of her back. Wow, I didn't anticipate her reaction at all! She recoiled and screamed blue murder, for quite a while. I'm lucky the old lady upstairs didn't call the cops, and maybe lucky the GF didn't beat my brains in, she was really mad.
#390
Re: Winter 2017-18
After walking the dogs in the morning, my husband does enjoy putting his freezing cold hands on my toasty warm bum, I don't enjoy it half as much