Storm hits Houston on Wednesday, severe weather possible

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The weather will get warmer along the Texas Gulf Coast on Wednesday, with highs in the 60s and lows in the 70s.

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High pressure has kept Houston’s skies clear, cooler than normal temperatures and improved air quality over the past few days. On Wednesday, however, high pressure will shift eastward, bringing warmer temperatures, southerly winds and an influx of moisture from the Gulf of Mexico.

Enjoy Wednesday’s nice weather while you can, as the weather will turn stormy starting in the evening, with severe storms possible in Houston and the metro area north of Interstate 10 on Thursday. On Thursday, the National Weather Service Storm Prediction Center upgraded the risk of severe weather in the region from mild to enhanced, a 2 to 3 out of 5 scale. A slight risk usually means an organized but scattered group of severe storms of varying intensity, while an enhanced risk usually means many widespread, severe storms, according to the weather service.

The National Weather Service Storm Prediction Center places much of East Texas under a marginal risk for severe weather (shown in dark green), with Houston and its northern suburbs at higher risk (orange zone). Marginal risk usually means an isolated severe storm, while enhanced risk usually means many severe storms.

National Weather Service

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A powerful storm system will organize, intensify and deepen over northern Texas and southern Oklahoma Wednesday night as a warm front moves northward through the Houston metro area. This will bring more moisture and unstable air with a higher dew point, which is an indicator of higher humidity.

Scattered showers will develop in the evening before turning to heavy rainfall overnight with a few severe thunderstorms. Winds will increase, with gusts approaching 25 mph. Chance of rainfall is 30% in the evening, then increases to 70% overnight.

Thunderstorms will continue into Thursday afternoon, with a near 100% chance of rain in Southeast Texas. It is during this time that we may see some severe weather and possibly even an isolated tornado in the Houston metro area.

What should you do to prepare?

  • Pay attention to the weather.
  • There are several ways to receive weather alerts.
  • Know where your safe spots are and make a plan for your family.

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This is what the radar will look like in Texas at noon Thursday, with the possibility of severe thunderstorms.

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Isolated heavy showers will result in widespread rainfall amounts of between 1 and 2 inches, but higher amounts are possible in isolated areas, especially along and east of the Interstate 45 corridor.

If rainfall forecasts are accurate, moisture could narrow the gap between normal November rainfall and actual rainfall so far. If that happens, we could end a six-month streak of below-average monthly rainfall.

Rain could also reduce the normal deficit so far this year by nearly 9 inches.

As of Friday morning, cumulative rainfall amounts of at least 2 inches are expected in Houston and southeast Texas.

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Rain and storm coverage will decrease from west to east Thursday afternoon. There will be gusty southerly winds for the remainder of the day, especially near the coast. The National Weather Service in Houston warned that wind warnings may be needed Thursday afternoon and evening as gusts could reach as high as 35 mph.

The second part of this storm will be a cold front expected to swing in late Thursday and early Friday. The front will stall along the coast through the weekend, with a 30% chance of rain on Friday and a 20% chance of rain on Saturday. You don’t need to cancel any outdoor plans as these showers will be hit or miss during this time.

Temperatures are moderate, with morning lows in the 40s and 50s and highs mainly in the 60s.

Have you noticed that you’ve been sneezing more frequently lately? This time of year, with each cold front that passes through, we start to see an increase in allergies in Texas, especially to mountain cedar. The season has begun in San Antonio, Austin and the Hill Country, with small numbers under the microscope weeks early. It’s only a matter of time before it shows up in Houston, especially with the passing of the front lines this week.

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