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Old 08-09-2016, 10:29 PM
 
7,540 posts, read 11,573,598 times
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101 heat index currently in Galveston wow and heat index today in Baytown was 120 you can not be outside more than 5 min with a heat index that high.
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Old 08-09-2016, 11:03 PM
 
470 posts, read 454,821 times
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Quote:
Originally Posted by DJboutit View Post
101 heat index currently in Galveston wow and heat index today in Baytown was 120 you can not be outside more than 5 min with a heat index that high.
You had hot temps, which occurred for days previously, combined with the fact that deep moisture from the low pressures system in the E.Gulf has finally moved in. The heat and moisture made heat index sky-rocket to tremendous levels. It is actually the first time heat index values have ever been that high across Houston:
Quote:
.PREV DISCUSSION... /ISSUED 935 PM CDT TUE AUG 9 2016/

UPDATE...
A couple of notes regarding the Excessive Heat Warning issued
earlier for Harris, Brazoria and Galveston counties. The criteria
for an Excessive Heat Warning is 113 degrees or warmer with no
time restraints. We have been searching our local records tonight,
and we have been unable to find any previous issuance of an
Excessive Heat Warning.
43

PREV DISCUSSION... /ISSUED 911 PM CDT TUE AUG 9 2016/

DISCUSSION...
Heat index values still above 100 degrees at many locations at 8
PM. Can not recall ever observing heat index values above 115
degrees in this area.
Will it happen again tomorrow? Not exactly
sure but air temperatures will again be very warm but maybe a bit
more cloud cover will shave a few degrees off high temperatures.
Still forecasting heat index values near 110 degrees tomorrow aftn
so the heat advisory will remain in effect and another Excessive
Heat Warning may yet be needed if max temps warm above current
fcst values. As for rain chances, it appears that that a weak low
over the northern gulf coast has shifted slightly west. Not sure
if this feature will edge close enough to provide SE TX with
better rain chances. SE TX will lie right on the edge of deeper
moisture but heights are about 30 meters higher than 24 hours ago.
500 mb and 300 mb analysis shows a weak trough of low pressure
over E TX so would expect heights to be falling, not increasing.
Short term guidance continues to suggest drier solutions so will
leave the 20/30 PoPs as currently configured. Cleaned up PoPs for
this evening and tweaked hourly temp, dew pt and sky grids. 43

&&
The good thing is that this moisture gives way to very high PWAT values (over 2 inches), so rain chances Wed will be much better, which, in turn, means more cloud cover, and cooler weather.
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Old 08-10-2016, 01:10 AM
 
Location: Beautiful Northwest Houston
6,291 posts, read 7,498,832 times
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Quote:
Originally Posted by DJboutit View Post
101 heat index currently in Galveston wow and heat index today in Baytown was 120 you can not be outside more than 5 min with a heat index that high.
Quote:
Originally Posted by VIRAL View Post
You had hot temps, which occurred for days previously, combined with the fact that deep moisture from the low pressures system in the E.Gulf has finally moved in. The heat and moisture made heat index sky-rocket to tremendous levels. It is actually the first time heat index values have ever been that high across Houston:


The good thing is that this moisture gives way to very high PWAT values (over 2 inches), so rain chances Wed will be much better, which, in turn, means more cloud cover, and cooler weather.

It would be nice if you guys would share the sources of this information in the form of a link ?


BTW Austin had a heat index of 111 today IAH was only 109 ...


National Weather Service : Observed Weather for past 3 Days : Austin City, Austin Camp Mabry
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Old 08-10-2016, 05:10 AM
 
470 posts, read 454,821 times
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Quote:
Originally Posted by Jack Lance View Post
It would be nice if you guys would share the sources of this information in the form of a link ?


BTW Austin had a heat index of 111 today IAH was only 109 ...


National Weather Service : Observed Weather for past 3 Days : Austin City, Austin Camp Mabry
I thought it pretty clear that the data was from the NWS, so I saw no need to provide a link.

These heat index values have never been recorded in Houston until now, but happen regularly in much of South/Central Texas (especially the coastal areas). People always harp on high humidity in Houston/SE Texas, but at least these areas actually reap the benefits of the humidity (frequent rainfall on average).

Austin and Dallas both average less rainfall days than Phoenix in August. The South Texas area regularly sees conditions like this all through summer. Heat and humidity, but with no benefit.
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Old 08-10-2016, 07:03 AM
 
Location: Beautiful Northwest Houston
6,291 posts, read 7,498,832 times
Reputation: 5061
Quote:
Originally Posted by VIRAL View Post
I thought it pretty clear that the data was from the NWS, so I saw no need to provide a link.

These heat index values have never been recorded in Houston until now, but happen regularly in much of South/Central Texas (especially the coastal areas). People always harp on high humidity in Houston/SE Texas, but at least these areas actually reap the benefits of the humidity (frequent rainfall on average).

Austin and Dallas both average less rainfall days than Phoenix in August. The South Texas area regularly sees conditions like this all through summer. Heat and humidity, but with no benefit.

You should still post the links, just so people will know the info is not edited in some way.
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Old 08-10-2016, 07:05 AM
 
Location: Houston, TX
1,658 posts, read 1,242,149 times
Reputation: 2731
Quote:
Originally Posted by VIRAL View Post
I thought it pretty clear that the data was from the NWS, so I saw no need to provide a link.

These heat index values have never been recorded in Houston until now, but happen regularly in much of South/Central Texas (especially the coastal areas). People always harp on high humidity in Houston/SE Texas, but at least these areas actually reap the benefits of the humidity (frequent rainfall on average).

Austin and Dallas both average less rainfall days than Phoenix in August. The South Texas area regularly sees conditions like this all through summer. Heat and humidity, but with no benefit.
Hey Ynohtna / B00ST / Wipe0ut / Shake&Bake / CyberSamurai / Wipe0ut2020 / VIRAL !!

Glad to see you're back after getting banned so many times.
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Old 08-10-2016, 07:46 AM
 
470 posts, read 454,821 times
Reputation: 151
Quote:
Originally Posted by detachable arm View Post
hey ynohtna / b00st / wipe0ut / shake&bake / cybersamurai / wipe0ut2020 / viral !!

Glad to see you're back after getting banned so many times.
Irrelevant.
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