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Looking at satellite and surface obs it is very apparent moist inflow is pumping in very hard. Satellite shows low level clouds being sucked in from the south. Surface obs to the south show southerly winds with dew points at or near 80 degrees indicating VERY moist air.

tireman4 wrote: ↑Thu Sep 19, 2019 9:53 am Those inflow rates (25 to 40 knots), the dewpoints down around the coast (80 degrees) and the serious moisture (2.0 to 2.2 PWATS) in the area will be a headache all day long. Folks, please stay tuned here, HGX and your local outlets for information.

Nature's firehose. Incredibly concerning, even as the center drifts far away.NNW.

https://mobile.twitter.com/spann/status ... 1105349640

Stay safe everyone!

New Mesoscale Precipitation Discussion out for the Houston Area into Far Western Louisiana.
Mesoscale Precipitation Discussion 0869
NWS Weather Prediction Center College Park MD
1111 AM EDT Thu Sep 19 2019

Areas affected...Southeast TX...Far western LA

Concerning...Heavy rainfall...Flash flooding likely

Valid 191509Z - 192109Z

Summary...Life-threatening flash flooding will continue across
portions of southeast Texas associated with Tropical Depression
Imelda. Extremely heavy rainfall will persist and drop south
toward Galveston Bay and the Houston metro.

Discussion...Tropical Depression Imeda is positioned 55 north of
Houston and is migrating north. As a result, expect heavy rainfall
to continue across portions of southeast TX into far west LA.
However, do anticipate the axis of heaviest rainfall to slowly
migrate south over the Houston metro area.

Over the next few (1-3) hours rain rates will remain very high
across this region. However, it is expected that the overall rain
rates will start to decrease by mid-afternoon. This is likely due
to the transition of the mid-level low position and forcing edging
northward which will aid in migrating the moisture flux/transport
away from the instability axis closer to the coast. Anticipate the
axis of heaviest rain/highest rain rates to shift toward Trinity
and Galveston Bay and the Houston metro area. This shift is
associated with the surface and boundary layer convergence
gradient which is farther south of the apparent low circulation.
Another factor that is contributing to the higher rainfall totals
is the training/backbuilding of convection oriented northwest to
southeast toward Hamshire, TX. This moisture feed is expected to
continue with the unidirection flow in place, though the position
should sag south.

Rainfall totals over the next couple of hours will be around 3 to
6 inches with locally higher amounts expected. Rain rates of over
3 inches per hour are still plausible as HREF probabilities are
still upwards of 50% for this threshold. Given heavy rain is
moving into areas already saturated from previous rainfall during
yesterdays activity, expect vulnerable soils to become iundated
rather quickly, especially across urban areas. Therefore, we are
continuing to message signicant to life-threatening flash flooding
across this region through mid-afternoon.

Pagano

ATTN...WFO...FWD...HGX...LCH...

Did the low reform further south overnight? I thought it was in Lufkin as of last night!

Greens Bayou @ US 59 reports 6.24 inches the past hour.

Unfortunate decision to hold class at Houston Public Schools HISD... Flash Flood Emergency means it'll be hazardous for parents to get their kids out of school... and how will Houston's roads look in four hours, when the final bell rings???

I think that is the first time I have seen a Civil Emergency Message before.

I had to go Atascocita this morning. It was raining hard when I got there. When I left it was Stormapocalypse. Parking lots and roads flooding, incredibly rain, thunder, and lightning. Seriously dark clouds - the automatic lights at the gas stations and such were turning on. Amazing to me how everyday has been worse than the last with this event.

Im in the Garden oaks/ Oak Forest area myself and it is coming down hard.

davidiowx wrote: ↑Thu Sep 19, 2019 11:00 am I think that is the first time I have seen a Civil Emergency Message before.

Same here.

The problem is that these storms are just primed at the ready for heavy rainfall..the dynamics are there (high PWATS), scary inflow (25-40 knots) and seriously high dewpoints (78-80 degrees). It will take awhile for them to start to weaken. This will be a long day.

This is insane. Looks like another training line is trying to set up along the coast.

Man its flooding in kongwood and i have to drive to downtown to the east end...think ill be ok?

From Jeff's Facebook Page..

Jeff Lindner
10 mins ·
House flooding likely Greenspoint, all Greens Bayou below US 58

Halls Bayou

Cedar Bayou

garners bayous

Numerous rescues are in progress from vehicles

Kingwood36 wrote: ↑Thu Sep 19, 2019 11:10 am Man its flooding in kongwood and i have to drive to downtown to the east end...think ill be ok?

Lots of messages being broadcast to stay off of the roads.. I am not sure of your situation, but It seems to be a definite risk.

Kingwood36 wrote: ↑Thu Sep 19, 2019 11:10 am Man its flooding in kongwood and i have to drive to downtown to the east end...think ill be ok?

I would say NO!

Wow the rain is so heavy right now, my street is already starting to flood.

Any idea where Imelda is heading? Will she go to Waco or hook back around to Beaumont? (Yikes!)

Not looking good with showers continuing to build northwest of Houston metro.