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3
Posted on 8/26/17 at 10:26 pm to slackster
Houston is getting closer and closer to being in the main convection...
Posted on 8/26/17 at 10:26 pm to jlntiger
quote:
Thanks for your input on both of the threads over the last couple of days. Several posters on here ( you , rcs ds, etc ) deserve a lot of credit and thanks
No problem. I can't tell you why something is happening, but I can post a few screenshots and models, and I like to think I've got a modicum of common sense.
Posted on 8/26/17 at 10:26 pm to slackster
Ugh. Not surprised but not happy.
Looks like it's got the tap and will fill in well over the next couple of hours.
Looks like it's got the tap and will fill in well over the next couple of hours.
Posted on 8/26/17 at 10:30 pm to slackster
About to get a tornado warning for the Bolivar Peninsula area:
Posted on 8/26/17 at 10:30 pm to slackster
Convection blowing up over Houston. Not good at all.
Posted on 8/26/17 at 10:31 pm to slackster
Boy that gap disappeared fast. Long night
In h town
In h town
Posted on 8/26/17 at 10:32 pm to Duke
Storms are rapidly firing off and filling in between the line that just went through and the main circulation just SW of Sugarland.
Looks like it will be on solid sheet from center of circulation through Houston in an hr or two.
Looks like it will be on solid sheet from center of circulation through Houston in an hr or two.
Posted on 8/26/17 at 10:32 pm to Duke
quote:
Convection blowing up over Houston. Not good at all.
Wow
This post was edited on 8/26/17 at 10:37 pm
Posted on 8/26/17 at 10:33 pm to Duke
(no message)
This post was edited on 4/15/23 at 5:13 am
Posted on 8/26/17 at 10:34 pm to Duke
See that big erosion on the western side? That's what I'm talking about.
Posted on 8/26/17 at 10:35 pm to rds dc
Tonight looks primed for repeated rounds of heavy rain or constant training over the Houston area. Going from the top down.
There is strong divergence aloft:
There is strong low level convergence of high CAPE air off the Gulf. This is basically an unlimited supply of energy and moisture.
There is no sounding for Houston but the CRP sounding is upstream in the flow and shows a saturated column and this makes for very efficient rain production.
This is a really bad setup that won't move much overnight or even into tomorrow. The high end rainfall model projections are certainly on the table for areas in the SE Texas, including Houston.
There is strong divergence aloft:
There is strong low level convergence of high CAPE air off the Gulf. This is basically an unlimited supply of energy and moisture.
There is no sounding for Houston but the CRP sounding is upstream in the flow and shows a saturated column and this makes for very efficient rain production.
This is a really bad setup that won't move much overnight or even into tomorrow. The high end rainfall model projections are certainly on the table for areas in the SE Texas, including Houston.
Posted on 8/26/17 at 10:38 pm to msutiger
quote:
Can you explain what that means in terms your average person would understand?
Hope so.
Those red colors show cloud top temperatures. The higher up, the colder they are much like how cold it is outside an airplane at 30,000 ft.
What that means is all that moist air Harvey is pulling in and is being lifted up rapidly over the Houston area. This process rings out rain. Same process that creates those afternoon thunderstorms we get. You'll note the incredible lightning you've got to be seeing in Houston based on that image I showed. That's another sign of strong convection and heavy rains incoming.
Tl;dr: highly suggets very heavy rainfall to be produced and looks as if it's being focused over Houston.
ETA: this is exactly what you'd expect based on what rds just posted.
This post was edited on 8/26/17 at 10:41 pm
Posted on 8/26/17 at 10:39 pm to Duke
FYI, really setting off between Sugarland and meyerland... looks like Houston about to get walloped in 30m or so
Posted on 8/26/17 at 10:39 pm to msutiger
Posted on 8/26/17 at 10:39 pm to Duke
Gotcha. That makes perfect sense. I have never seen a lightning show like I saw on the band rolling north up 288 an hour or two ago. It was unbelievable.
Thanks
Thanks
Posted on 8/26/17 at 10:40 pm to slackster
Wow
Posted on 8/26/17 at 10:41 pm to rds dc
Touching back to that last post, the end result is expanding and cooling cloud tops as heavy rain develops across the area...
Posted on 8/26/17 at 10:43 pm to Lsut81
Getting rough in the NE too.
Posted on 8/26/17 at 10:44 pm to rds dc
damn
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