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HOUSTON — Imelda weakened to a tropical depression shortly after making landfall in the Houston area on Tuesday, but some of the heaviest rainfall is still sitting over the coastline and in the Gulf of Mexico.
>> KHOU 11 live radar is looping in the video player above (no audio)
At this time there are no widespread reports of high water on freeways or in structures.
A Flash Flood Warning is in effect for Brazoria, Jackson, Matagorda and Wharton County. A Flash Flood Watch is in effect for southeast Texas and extreme southwest Louisiana. By Thursday afternoon we could be looking at drier conditions.
SCHOOL CLOSURES: Closures in Houston and Southeast Texas
HIGH WATER LIST: High water locations on major roads across Houston
The tropical depression is expected to hover over the Houston Area for a couple of days and is expected to produce total rainfall accumulations of 6 to 12 inches. Isolated areas could see more.
As of the 7 a.m. Wednesday update from the National Hurricane Center, Imelda was located about 25 miles north-northwest of Houston. It had max sustained winds of 30 mph and was moving north at 5 mph.
Here’s the latest timeline from the KHOU 11 Weather Team:
Computers suggest we may see some of the heaviest rain of this event lasting through the morning on Wednesday. Flood threat is high, but even without the flooding the morning commute will have extensive delays.
Heavy rain threat will continue with the flash flood threat staying high.
The circulation should be well of the Houston area by this time. However it will still drag rain showers, some heavy, in behind the storm. Flood threat moderate.
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Thursday night & Friday:
Rain chances are expected to diminish. However, the ground will be saturated and any rain that falls could cause some problems. Flood threat low to moderate.
Galveston ISD and High Island ISD have canceled classes for Wednesday. Some school districts are cancelling after-school activities for Tuesday. Follow this link for additional closures.
Computer models continue to increase the amount of rain we could see over the next 72 hours and it’s concerning for sure for a couple of reasons.
HOUSTON RADAR: Imelda weakens to a depression
While the ground is dry, it’s also like concrete. If we experience rain rates as high as 2 to 3 inches per hour, we’ll see much of that turn into run-off that could quickly flood some areas.
Second, a lot of runoff will likely cause bayous, streams and rivers to rise. If and only if the blockbuster amounts shown in the models come to fruition, we could see swelling of the bayous.
WEATHER RADAR: Track rain & storms across Texas
Five ways to prepare for flooding
There are five things you can do right now to make sure you’re ready.
1. Register for AlertHouston
Alert Houston is how the City of Houston sends out critical emergency information. It will alert you via email, text, phone call, or push alert. You can get geo-targeted warnings at your location. You can also register up to five addresses.
2. Register for Harris County’s Flood Warning System
FWS monitors rainfall at more than 250 locations along bayous, creeks, and rivers. It will alert users in real time as water levels rise through email and/or text message.
3. Look at Houston’s Flood Prone Map
The City of Houston Office of Emergency Management partnered with Houston Public Works and TxDOT to identify over 100 flood prone roadways. Drivers should check the map before rain events.
4. Download the Transtar App
5. Pay attention to meteorologists
Visit our KHOU Weather page.