News Flash

Kemah News Flash

Posted on: March 21, 2022

Severe Weather Monitoring 03.21.22 1:30 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

The severe weather risk has increased to a Moderate (level 4 out of 5) for the far northwest and northern counties (portions of Colorado into Houston counties, including the Bryan/College Station area).

We continue to anticipate the development of widespread thunderstorms this evening through the overnight hours-  some of which will produce large hail, tornadoes, and/or damaging winds.  Within the newly issued Moderate Risk area, we could see some rather significant severe thunderstorms (hail greater than 2" in diameter, hurricane-force wind gusts, and/or longer track or EF2+ rated tornadoes). Later this evening and tonight, there will be a risk for flash flooding as storms expand and develop along a surface cold front slowly pushing through the area early Tuesday morning.

Overview

A strong low pressure system will overspread the area tonight, resulting in the development of widespread thunderstorms this afternoon and evening.  Beginning in the late afternoon, the severe weather threat will begin to increase to the west of our area in central TX.  There will be potential for large hail, strong wind gusts, heavy downpours, frequent lightning and tornadoes as they move quickly into our western and northern counties through the evening.. The threat for severe storms remains highest along and north of the I-10 corridor through the late evening.  Later this evening and early Tuesday morning, a surface cold front will begin to push through the area and additional storms are expected to develop along the slow-moving boundary. This will create a threat for street flooding, especially in urban areas. Because of this, a Flood Watch remains in effect for portions of our area between 7 PM tonight and 7 AM tomorrow (see map below). We continue to anticipate widespread rainfall totals of 2-4" area-wide with some locations seeing locally higher amounts. The bulk of the heavy rainfall is expected to arrive during the overnight period with conditions gradually improving after sunrise.  Damaging wind gusts, large hail and tornadoes also remain possible with this activity through daybreak tomorrow.  Overall, the threat will begin diminishing from west to east as the front pushes offshore through the morning hours.

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:

- Turn Around, Don't Drown. Isolated underpasses or low-water crossings may be life-threatening.

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

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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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