News Flash

Kemah News Flash

Posted on: June 30, 2022

Severe Weather Monitoring 06.30.22 12:30 PM

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The City of Kemah Emergency Management continues to monitor the possible weather developments making their way towards our region. As we continue to track these developments, now is a good time to review your significant weather event preparedness plans.

In addition to our Emergency Preparedness document for a quick overview of what you will need to be aware of during events like this, we also highly recommend visiting www.GCOEM.org to download the Galveston County Emergency and Disaster Guide. It is filled with tips and information to help you prepare.

The City of Kemah urges you to please stay abreast of weather developments by following local weather news reports for Galveston County. And observing communications from the US National Weather Service Houston-Galveston Texas for the latest information.

The National Weather Service has produced the following information:

Bottom Line


A disturbance in the Western Gulf may develop into a tropical depression today as it moves towards the Middle Texas Coast. Regardless of whether this occurs, periods of heavy rain can be expected through Saturday with the most significant rainfall occurring from tonight at around midnight through tomorrow morning.

The heaviest rainfall will occur along the coast, where widespread totals of 3-6" are expected through Saturday (see graphic below). Isolated higher amounts are possible.

No major changes to the forecast. Confidence is increasing in the possibility of heavy rainfall and threat of minor urban and small stream flooding near the coast.

Overview


We continue to monitor the development of a disturbance in the Western Gulf. The disturbance will continue to push northwestward today, eventually advancing inland along the Middle Texas coast. During this time, there is a medium (40%) chance that the system will become a tropical depression. Regardless of whether this occurs, however, we can expect heavy rain associated with it to impact SE Texas, particularly in locations near the coast. Rainfall chances will be on the rise today, with the possibility for heavy rain becoming greatest overnight tonight. In the strongest storms and in locations generally along and south of the I-10 corridor, rainfall rates may approach 2-3" per hour. This has prompted the Weather Prediction Center to place the region within a Slight risk area for excessive rainfall this evening (see graphic below). Showers and storms will continue into Saturday as the system pushes inland.

Overall, rainfall totals will be greatest along the coast where around 3-6" can be expected through Saturday. Locally higher amounts up to 8" are possible, but this possibility will be highly conditional on the exact track of the system. While this will provide a benefit of alleviating drought conditions near the coast, there will also be a risk of urban and small stream flooding with the strongest storms that develop. Rainfall totals will decrease further north from the coast with a sharp drop-off from several inches of rain to little rain.

 qpf_Jun30


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Urban Flash Flood Messaging

Heavy rainfall is forecast for portions of Southeast Texas, including highly urbanized areas like the Houston metropolitan area. Based on forecast conditions, NWS Houston will be utilizing the following urban flash flood messaging for this event:

Street Flooding (Select if Anticipating Moderate Rainfall Rates; 1-2"/hour)

- Drive with caution. Cars may flood in low-lying areas. Ponding on roadways may increase risk of hydroplaning.

- Pay attention to the weather. Monitor the NWS, your local media, HCFCD and other official weather information sources.

- Rain may move repeatedly across the same area, causing a rapid rise on creeks and bayous. However, creeks and bayous are not likely to exceed their banks.

Resources

If you have any additional questions, please feel free to contact the National Weather Service office at the phone numbers listed in the Resources section above.



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