Weather Alert in Texas

Recent Locations: McKinney, TX  
Current Alerts for McKinney, TX: Flood Watch

Flood Watch issued May 5 at 11:38PM CDT until May 7 at 1:00AM CDT by NWS Houston/Galveston TX

AREAS AFFECTED: Houston; Trinity; Madison; Walker; San Jacinto; Polk; Brazos; Grimes

DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southeast Texas, including the following counties, Brazos, Grimes, Houston, Madison, Polk, San Jacinto, Trinity and Walker. * WHEN...From 7 AM CDT Tuesday through late Tuesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A strong storm system will produce showers, heavy at times, and thunderstorms across the region on Tuesday. Rainfall totals of 1 to 3 inches can be broadly expected across SE Texas, though higher amounts of 3 to 6 inches will be possible in the watch area. Tuesday afternoon through Tuesday night will be the main timeframe to monitor for heavy rainfall over the current watch area, especially as some of these storms could become strong at times. Flood watch could be expanded further south heading into mid week depending on how conditions evolve. - http://www.weather.gov/safety/flood

INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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