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Damn, it's HOT


rsb320

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Ok, I'm no weather guru, but after sticking my thermometer in the sun it read 155 degrees. Certainly that's not the heat index?

155?? that really made me lol, haha

it rained at work for a while today. it was 80 there and 90 by the time i got home

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Ok, I'm no weather guru, but after sticking my thermometer in the sun it read 155 degrees. Certainly that's not the heat index?

Keep in mind that the heat index they give, let alone the temperature, is in THE SHADE. So yes, it IS possible to feel like 150, if you're in the sun; all the radiation from the sun has to land somewhere, ya know!

This is what explains the "urban heat island" phenomenon; all of the sun's energy hitting concrete/asphalt=more ambient heat.

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...Remember that water has a high heat capacity. Meaning it takes a lot of warming to change just one degree. The drier the air is, the more heat it can hold...

I think you mean the right thing but stated it wrong. Humid air can hold much more heat, or it takes more energy to get the humid air to a higher temperature. I'd rather 105 degrees at 20% humidity than 95 at 90% any day. To me, the shade is infinitely more bearable even in the heat when it is less humid. When it's humid it doesn't matter shade or not, it's nnasty.

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The Jersey Village area got some rain yesterday afternoon. It looked like it was going to make it out to Cypress, but it was just a head fake. The high on my (shaded) porch yesterday afternoon was 102.9 F.

Question for the meteorologically inclined: it seems that we've been getting some of the spotty afternoon showers this week, which hadn't been happening the past few weeks. Is that a sign that the high pressure system is weakening?

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Ok, I'm no weather guru, but after sticking my thermometer in the sun it read 155 degrees. Certainly that's not the heat index?

Thermometers don't measure heat index values, just temperatures. The heat index is the temperature it "feels like" b/c the moisture in the air makes it difficult for your sweat to evaporate. Normally you sweat and when your sweat evaporates it cools you (it carries heat away from your body)... but since there is too much moisture already in the air the sweat can't evaporate as easily and it makes it "feel" like it's even hotter than the actual temperature. :)

On a side note, it poured at my place near the Medical Center yesterday... it was so great to see rain.... I ran around outside like a little kid... then ran back inside when I almost got struck by lightning. :blush:

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The Jersey Village area got some rain yesterday afternoon. It looked like it was going to make it out to Cypress, but it was just a head fake. The high on my (shaded) porch yesterday afternoon was 102.9 F.

Question for the meteorologically inclined: it seems that we've been getting some of the spotty afternoon showers this week, which hadn't been happening the past few weeks. Is that a sign that the high pressure system is weakening?

No, it just moved a bit... plus we had a boundary push into southeast Texas which helped serve as a focus for the shower / storm development... unfortunately this boundary is washing out so rain chances should be a bit lower today (around 10%).

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Keep in mind that any shower that does develop may induce sinking or subsidence on the periphery of the storm which would serve to increase the temperature quite a bit. Won't happen everywhere, but it's possible. Remember, when air sinks, it is compressed and warmed. We're looking at temps well over 100 degrees again today...especially with 850mb temps into the mid 20s. Good news here is that they heights are supposed to lower in the near future as the ridge tappers.

On a side note, Tropical Invest 93L has been classified in the Caribbean. Some of the models spin this up into something and eventually moves it into the gulf. Something to watch...

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Keep in mind that any shower that does develop may induce sinking or subsidence on the periphery of the storm which would serve to increase the temperature quite a bit. Won't happen everywhere, but it's possible. Remember, when air sinks, it is compressed and warmed. We're looking at temps well over 100 degrees again today...especially with 850mb temps into the mid 20s. Good news here is that they heights are supposed to lower in the near future as the ridge tappers.

On a side note, Tropical Invest 93L has been classified in the Caribbean. Some of the models spin this up into something and eventually moves it into the gulf. Something to watch...

HERE... WE... GO!!!

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Worst part to me is having to water my damn yard. I HATE watering my yard in a city whose annual rainfall averages about an inch of rain a week (50" per year).

I've watered the yard twice this week. The alternative is what happened to me last summer when I didn't water, and ended up with dead St. Augustine. I suppose a better alternative would be to replant with buffalo grass. I wonder how bahia grass would look? :)

You're not serious about bahai grass I hope . Yes its' drought hardy , but it's stems are tough as vinyl . Hard to mow . An ugly invasive grass that has no purpose in the city . Its a pasture grass used for cattle grazing .

Edited by J W
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Thermometers don't measure heat index values, just temperatures. The heat index is the temperature it "feels like" b/c the moisture in the air makes it difficult for your sweat to evaporate. Normally you sweat and when your sweat evaporates it cools you (it carries heat away from your body)... but since there is too much moisture already in the air the sweat can't evaporate as easily and it makes it "feel" like it's even hotter than the actual temperature. :)

On a side note, it poured at my place near the Medical Center yesterday... it was so great to see rain.... I ran around outside like a little kid... then ran back inside when I almost got struck by lightning. :blush:

Gotcha... I was somewhat assuming since tempurature is measured in the shade, that in the sun was the heat index.

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Gotcha... I was somewhat assuming since tempurature is measured in the shade, that in the sun was the heat index.

The heat index is calulated using relative humidity and temperature. I don't know the calculation, though. In the winter, they use wind speed and temperature to calculate the wind chill factor.

If someone knows the specifics, bring it on.

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You're not serious about bahai grass I hope . Yes its' drought hardy , but it's stems are tough as vinyl . Hard to mow . An ugly invasive grass that has no purpose in the city . Its a pasture grass used for cattle grazing .

No, not serious about bahia grass...I brought it up because of a recent trip to my grandpa's place up towards Collie Station, where they're in a slightly worse drought than we are here in Houston. For reference, he's had the property for nearly 50 years, and his stock ponds are as low as he's ever seen them.

That being said, he's still got *some* green bahia grass out in his pasture...obviously it's a tough drought-resistant grass. Probably a result of having those tough stems you talk about. I know that a lot of desert plants stay drought tolerant due to their high wax content that prevents them from losing too much water to evapotranspiration.

I do have a friend down in Corpus that's been growing a couple of patches of buffalo grass in his yard. Says it's hardy as hell, but pretty tough to get it to spread in an existing turfgrass yard. Says you have to just about eradicate any other turfgrass in the patches you want to grow it. Says it does great where you can pull up St. Augustine, but it isn't outcompeting the bermuda grass. Says you have to completely kill the bermuda to get the buffalo to be able to grow.

He also said that it does require maintenance...the buffalo grass needs to be mowed TWICE a year!!! :o I like that idea.

Corpus is in an EXTREME drought...much worse than we are in Houston, and worse than what they've got up at my grandpa's. We think we've got it bad because we haven't had significan rain since April...they haven't had significant rain in Corpus since OCTOBER!

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Thermometers don't measure heat index values, just temperatures. The heat index is the temperature it "feels like" b/c the moisture in the air makes it difficult for your sweat to evaporate. Normally you sweat and when your sweat evaporates it cools you (it carries heat away from your body)... but since there is too much moisture already in the air the sweat can't evaporate as easily and it makes it "feel" like it's even hotter than the actual temperature. :)

Yep... Got this from the Farmers Almanac:

"The combination of high temperature and high humidity reduces your body's ability to cool itself. For example, the heat you feel when the actual temperature is 90 degrees Fahrenheit with a relative humidity of 70 percent is 106 degrees Fahrenheit".

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On a side note, Tropical Invest 93L has been classified in the Caribbean. Some of the models spin this up into something and eventually moves it into the gulf. Something to watch...

Most of the Forecast Models say it will head in our direction then turn to the right and squeeze its way between to Highs (the one thats over us and one in the Atlantic) possibly hitting Florida. Should be a tropical depression or storm later this weekend.

Edited by UpuPUp!
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A couple of pages ago, someone asked if this heat wave was similar to 1980, and we universally decided at that time that it wasn't. Well, after setting a record every day this week, after 4 straight days over 100 degrees, and with predictions of 100 for at least the next two days, it may be time to revisit 1980. June 1980 had 8 days of 100 degrees or more. June 2009 seems destined to have 6 or more. To put it in historical context, only 17 days in June have reached 100 degrees since 1937, with 12 either in 1980 or this year.

Yeah, it's starting to feel a bit like 1980.

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The Chronicle stole my post!

http://www.chron.com/disp/story.mpl/front/6500043.html

So far, this June is only .2 degrees behind June 1980 as the hottest ever. If we simply reach the predicted high temperatures for the next 4 days, it will be the hottest June ever. It is also almost the driest.

You beat me to it while I was uploading images.

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260xStory.jpg

File photo

Construction worker David Booker, 18, found relief with a splash of water while working on Houston's Smith Street in 1980.

They don't make construction workers like they used to, eh?

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On a side note, it poured at my place near the Medical Center yesterday... it was so great to see rain.... I ran around outside like a little kid... then ran back inside when I almost got struck by lightning. :blush:

It did?

I got thunder but no rain here just down Main, on the other side of 610.

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A couple of pages ago, someone asked if this heat wave was similar to 1980, and we universally decided at that time that it wasn't. Well, after setting a record every day this week, after 4 straight days over 100 degrees, and with predictions of 100 for at least the next two days, it may be time to revisit 1980. June 1980 had 8 days of 100 degrees or more. June 2009 seems destined to have 6 or more. To put it in historical context, only 17 days in June have reached 100 degrees since 1937, with 12 either in 1980 or this year.

Yeah, it's starting to feel a bit like 1980.

Yeah, I mentioned 1980 in the original post of this thread. We've even been breaking 1980 records the past week. Hopefully, we'll get our 30% precip later today.

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7:39 PM and big old fat raindrops are falling. This is what we need; some rain every other evening or so for the next month. We water with sprinklers, not firehoses - all a huge storm will do is run into the gutters after the first few inches.

:D:D:D = Porchman for the last hour.

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7:39 PM and big old fat raindrops are falling. This is what we need; some rain every other evening or so for the next month. We water with sprinklers, not firehoses - all a huge storm will do is run into the gutters after the first few inches.

How sad are we, we feel like LA peeps now.

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You didn't get rain!? It really appeared that big parts of the storm lay west of us and were moving south.

Oh no no no, I got rain, happily.

I was just commenting that as Houstonians, who USUALLY get rain on a regular basis, the fact that we went over a month without it, and when we do get it, we get excited about it.

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Wow, pretty sure the rain just went AROUND this area of Montrose/Upper Kirby. Joy... At least we saw some clouds and heard thunder :)

Edit: I don't expect it to last long, but man is it nice to finally hear some rain on the roof!

Edited by OkieEric
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Oh no no no, I got rain, happily.

I was just commenting that as Houstonians, who USUALLY get rain on a regular basis, the fact that we went over a month without it, and when we do get it, we get excited about it.

Oh, OK. I can relate. I stood out on the porch (go figure) for about an hour just grinning.

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Still raining; a nice slow gentle drizzle. I showed my husband the parade of toads hopping across the patio - I counted 22! This is how my grandfather in Brownsville would get me to stick to bedtime on rainy summer evenings - "The toads are coming out to dance, but they won't while you're watching, so you'd better get to bed!" :lol:

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pouring on se side......ground is absorbing it all!

I had NWS radar up and could see it coming, but then it parted at I-10 and missed Montrose/Westmoreland (a few sprinkles).

I could see your lightening, Music. <_< And, I could see dark clouds and lightening to the west too. <_<

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pouring on se side......ground is absorbing it all!

Dang! I watched that damn cloud sit right over your hood for over an hour! Here on Walker St we got 15 minutes of drizzle that barely wet the grass, and maybe 10 minutes of rain. Still, it was nice to sit on the porch in the wind and drizzle.

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Dang! I watched that damn cloud sit right over your hood for over an hour! Here on Walker St we got 15 minutes of drizzle that barely wet the grass, and maybe 10 minutes of rain. Still, it was nice to sit on the porch in the wind and drizzle.

from the news it looked like it was mostly east of s wayside. hopefully tomorrow it'll be more widespread. good time for a weak tropical storm perhaps.

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from the news it looked like it was mostly east of s wayside. hopefully tomorrow it'll be more widespread. good time for a weak tropical storm perhaps.

I drove through it at 7:00 pm on I-45 north of the loop. It came down so hard that traffic slowed to about 25 mph. I hope some of it hit my house. Haven't been back home to see yet.

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Man are you guys lucky... Out here where the vortex of hell looms we got dark clouds and lightning, but nothing wet. We're now at six weeks without rain here.

Where?

I had NWS radar up and could see it coming, but then it parted at I-10 and missed Montrose/Westmoreland (a few sprinkles).

I could see your lightening, Music. <_< And, I could see dark clouds and lightening to the west too. <_<

Like last Thursday...we were at the Menil. There was lot of thunder, yet no rain.

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