How is the weather?

Started by Mozart, November 23, 2007, 11:01:07 PM

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Pohjolas Daughter

Quote from: Spotted Horses on January 09, 2024, 06:54:07 AMWith regard to heat, it depends on the humidity. The weather is often reported with qualifiers, "the temperature is X but the heat index I Y," or "the temperature is X but with wind chill it is Z." Why is there no heat index when it is cold, or wind chill when it is warm? Seems like the purpose is the make the temperature sound more alarming.

With regard to heat, the "wet bulb temperature" is the most salient. Temperature is measured by exposing a thermometer to air. "Wet bulb temperature" is measured by wrapping the thermometer in a sleeve of wet cloth. Evaporation of water from the cloth cools the thermometer, and that reflects your skin temperature when you sweat. If the wet bulb temperature is above 32C (90F) a person will not be able to function. If it is above 35C (95F) a person will die, even if they are resting in the shade with an infinite supply of water.

Wet bulb temperature is described in wikipedia,
https://en.wikipedia.org/wiki/Wet-bulb_temperature

There is an on-line wet bulb calculator at
https://www.omnicalculator.com/physics/wet-bulb

At 20% humidity that 49C in B.C. would be 28.8C, ok. At 38% humidity it would be 35C, lethal.
I hadn't heard of "wet bulb temperature" before now...interesting!

As for myself, I've said for many years that I can handle hot and dry temperatures way better than hot and humid.

PD
Pohjolas Daughter

Spotted Horses

Quote from: Pohjolas Daughter on January 09, 2024, 09:40:32 AMI hadn't heard of "wet bulb temperature" before now...interesting!

As for myself, I've said for many years that I can handle hot and dry temperatures way better than hot and humid.

PD

I hadn't heard about it until relatively recently, when I read an article about climate change, and how some densely populated parts of the world (Pakistan, India?) are starting to experience temperatures that are not survivable. It made the point that wet bulb temperature is what determines if your body will be able to regulate temperature. It has to be far enough below normal body temperature that your body can dissipate the heat generated by your metabolism.
There are simply two kinds of music, good music and the other kind. - Duke Ellington

VonStupp

A solid 5-6 inches overnight, but it won't stop snowing until tomorrow morning. Wind is strong, but it is above freezing right now.
VS

Snow2.jpg
"All the good music has already been written by people with wigs and stuff."

Pohjolas Daughter

Quote from: VonStupp on January 09, 2024, 11:50:20 AMA solid 5-6 inches overnight, but it won't stop snowing until tomorrow morning. Wind is strong, but it is above freezing right now.
VS

Snow2.jpg
Are you dealing with any particular issues?

PD
Pohjolas Daughter

DavidW

The storm is real bad here with 60 mph wind gusts.  The power went multiple times when I was in class.

Pohjolas Daughter

Quote from: DavidW on January 09, 2024, 12:17:38 PMThe storm is real bad here with 60 mph wind gusts.  The power went multiple times when I was in class.
:(
Quote from: VonStupp on January 09, 2024, 11:50:20 AMA solid 5-6 inches overnight, but it won't stop snowing until tomorrow morning. Wind is strong, but it is above freezing right now.
VS

Snow2.jpg
:(
Pohjolas Daughter

Pohjolas Daughter

Quote from: DavidW on January 09, 2024, 12:17:38 PMThe storm is real bad here with 60 mph wind gusts.  The power went multiple times when I was in class.
:(
Pohjolas Daughter

VonStupp

#1627
Quote from: Pohjolas Daughter on January 09, 2024, 12:15:07 PMAre you dealing with any particular issues?

PD

Luckily, no. Our power lines are buried, so unless something happens at the main junction, we are usually safe from power outages. Many roads are closed, however, so traveling is ill-advised.
VS
"All the good music has already been written by people with wigs and stuff."

krummholz

Quote from: VonStupp on January 09, 2024, 12:38:49 PMLuckily, no. Our power lines are buried, so unless something happens at the main junction, we are usually safe from power outages. Many roads are closed, however, so traveling is ill-advised.
VS


You are lucky to live in such an area. In VT there are no buried power lines that I'm aware of. Ours are strung on poles and are very vulnerable to damage by wind and by being struck by tree limbs blown down by wind. We are expecting gusts over 50 kts tonight, and if that happens, we WILL lose power. Earlier today I took a sleeping bag and pad to my office and have a bag of essential items packed to grab if the winds become a serious issue. There is a tree leaning over my apartment building that is unlikely to come down, but if it does, it could cause a lot of damage. :(

Wendell_E

Bad weather across Alabama Monday/Tuesday night. I've seen a report that 1,383 power customers were affected in Mobile County, where I live, and some may be without if for a while, from what I've heard. I could hear the bad weather throughout the night, and early in the morning had 3 or 4 mercifully brief outages.

I work in the accounting office of a tire and automotive store, and some parts have power, while others don't. Unfortunately, the parts without made it impossible to do any tire or automotive work. I did have power in the accounting office and had plenty of end-of-year work to do, so instead of the usual 20 or so people, it was just little ol' me which made for a weird, but good day. I could have worked from home, but the setup's better at work, and not having the "help" of two feline assistants helped my productivity.

Not certain whether we'll be back to normal or not today. I'm guessing not.
"Never argue with an idiot. They will drag you down to their level and beat you with experience." ― Mark Twain

VonStupp

#1630
Quote from: krummholz on January 09, 2024, 04:42:28 PMYou are lucky to live in such an area. In VT there are no buried power lines that I'm aware of. Ours are strung on poles and are very vulnerable to damage by wind and by being struck by tree limbs blown down by wind. We are expecting gusts over 50 kts tonight, and if that happens, we WILL lose power. Earlier today I took a sleeping bag and pad to my office and have a bag of essential items packed to grab if the winds become a serious issue. There is a tree leaning over my apartment building that is unlikely to come down, but if it does, it could cause a lot of damage. :(

Quote from: Wendell_E on January 10, 2024, 02:50:20 AMBad weather across Alabama Monday/Tuesday night.

Not certain whether we'll be back to normal or not today. I'm guessing not.

Best of luck to you - Stay safe!

It looks like we finally ended up with between 10-12 inches of snow. This morning's clearing was the toughest I can remember in a long while.
VS
"All the good music has already been written by people with wigs and stuff."

Pohjolas Daughter

Quote from: krummholz on January 09, 2024, 04:42:28 PMYou are lucky to live in such an area. In VT there are no buried power lines that I'm aware of. Ours are strung on poles and are very vulnerable to damage by wind and by being struck by tree limbs blown down by wind. We are expecting gusts over 50 kts tonight, and if that happens, we WILL lose power. Earlier today I took a sleeping bag and pad to my office and have a bag of essential items packed to grab if the winds become a serious issue. There is a tree leaning over my apartment building that is unlikely to come down, but if it does, it could cause a lot of damage. :(
Did you end up losing power?  Lucky here:  no power loss.  I haven't heard, but I'm fairly certain that we didn't get the kind of strong winds that they had been predicting.  Received a very tiny bit of snow initially then turned to all rain.  Believe that we had about 2-3 inches of rain.  Certainly could have been a whole lot worse, so I'm grateful.

Quote from: Wendell_E on January 10, 2024, 02:50:20 AMBad weather across Alabama Monday/Tuesday night. I've seen a report that 1,383 power customers were affected in Mobile County, where I live, and some may be without if for a while, from what I've heard. I could hear the bad weather throughout the night, and early in the morning had 3 or 4 mercifully brief outages.

I work in the accounting office of a tire and automotive store, and some parts have power, while others don't. Unfortunately, the parts without made it impossible to do any tire or automotive work. I did have power in the accounting office and had plenty of end-of-year work to do, so instead of the usual 20 or so people, it was just little ol' me which made for a weird, but good day. I could have worked from home, but the setup's better at work, and not having the "help" of two feline assistants helped my productivity.

Not certain whether we'll be back to normal or not today. I'm guessing not.
How's the power situation?

Quote from: VonStupp on January 10, 2024, 06:32:31 AMBest of luck to you - Stay safe!

It looks like we finally ended up with between 10-12 inches of snow. This morning's clearing was the toughest I can remember in a long while.
VS
I understand the feeling.  Suddenly having to shovel a foot plus of snow after not having to do any serious shoveling in ages was quite the workout!

PD
Pohjolas Daughter

Pohjolas Daughter

Quote from: DavidW on January 09, 2024, 12:17:38 PMThe storm is real bad here with 60 mph wind gusts.  The power went multiple times when I was in class.
Was there much tree or rain damage in your area?

PD
Pohjolas Daughter

DavidW

Quote from: Pohjolas Daughter on January 10, 2024, 07:41:35 AMWas there much tree or rain damage in your area?

PD

Yes usual downed limbs.  Nothing like when we had that hurricane a few years back.  And it is a beautiful, sunny day today.

Wendell_E

Quote from: Pohjolas Daughter on January 10, 2024, 07:40:55 AMHow's the power situation?

Back to normal, at least at my workplace.
"Never argue with an idiot. They will drag you down to their level and beat you with experience." ― Mark Twain

Pohjolas Daughter

Quote from: DavidW on January 10, 2024, 08:50:58 AMYes usual downed limbs.  Nothing like when we had that hurricane a few years back.  And it is a beautiful, sunny day today.
Some sunshine here today too--off and on; unfortunately "off" for the most part when I decided to go out for a short stroll.  Winds have picked up though.

Flooding advisories in effect due to a lot of snow a couple of days earlier followed by a goodly amount of rain.

PD
Pohjolas Daughter

krummholz

Quote from: Pohjolas Daughter on January 10, 2024, 07:40:55 AMDid you end up losing power?  Lucky here:  no power loss.  I haven't heard, but I'm fairly certain that we didn't get the kind of strong winds that they had been predicting.  Received a very tiny bit of snow initially then turned to all rain.  Believe that we had about 2-3 inches of rain.  Certainly could have been a whole lot worse, so I'm grateful.

No! We had hardly ANY wind all night long... exactly the opposite of what was forecast. I did camp out in my office as a precaution, but it turned out to be unnecessary. Most of the impact we had from the storm was snow, about 15 cm (6") worth, which then mostly melted yesterday when the temperature went up to 6ºC (42ºF). A sprawling mess, but no one here lost power that I'm aware of. (Though Cambridge, VT, in the Champlain Valley, saw storm force winds come through that uprooted many trees.)

Friday night it's deja vu all over again as a nearly identical forecast has been issued into Saturday morning. Even the wind direction is supposed to be the same (SE). But I don't think we were sheltered by terrain, rather I think we were under an inversion preventing the strong winds from mixing down to the surface.

Pohjolas Daughter

Quote from: krummholz on January 11, 2024, 08:34:07 AMNo! We had hardly ANY wind all night long... exactly the opposite of what was forecast. I did camp out in my office as a precaution, but it turned out to be unnecessary. Most of the impact we had from the storm was snow, about 15 cm (6") worth, which then mostly melted yesterday when the temperature went up to 6ºC (42ºF). A sprawling mess, but no one here lost power that I'm aware of. (Though Cambridge, VT, in the Champlain Valley, saw storm force winds come through that uprooted many trees.)

Friday night it's deja vu all over again as a nearly identical forecast has been issued into Saturday morning. Even the wind direction is supposed to be the same (SE). But I don't think we were sheltered by terrain, rather I think we were under an inversion preventing the strong winds from mixing down to the surface.
Are they predicting strong winds again?  Hope not!  Interesting thoughts about the weather--I don't know enough about meteorology to make guesses about it.

Did you at least have fun making a tent in your office?  And reading ghost stories? ;)

PD
Pohjolas Daughter

Spotted Horses

Mid January in coastal California, no rain since the storm in December, and none in the forcast. The hills as supposed to be bright green by now. Where are you, El Niño? :(
There are simply two kinds of music, good music and the other kind. - Duke Ellington

Pohjolas Daughter

Quote from: Spotted Horses on January 11, 2024, 12:04:07 PMMid January in coastal California, no rain since the storm in December, and none in the forecast. The hills as supposed to be bright green by now. Where are you, El Niño? :(
So sorry to hear that the rains are off.  :(  Strange winter here too.  :(  Too much moisture at once.

PD
Pohjolas Daughter