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July 11, 2011

STAR WEATHER

TRENT HUGHES Star meteorologist The Meridian Star

MERIDIAN — Dangerous summer heat is expected for much of this week across the southern United States. Upper level ridging has once again expanded eastward into East Mississippi and West Alabama, and with the high moisture content outdoor conditions will be very oppressive.

    Afternoon temperatures in the mid to upper 90s perhaps even approaching the century mark will combine with dew point values in the lower to middle 70s to give us heat index values in the 105-110 degree range through at least Tuesday or Wednesday. During this time of year, the actual air temperature is not as important as the heat index is because heat index values represent what your body feels. So yes 98 or 99 degrees is hot, but it is going to feel like 105 to 110 degrees, which can cause heat illnesses quickly including the high risk of a very dangerous heat stroke. Signs and symptoms of heat stroke include a body temperature of 104 degrees or higher (main symptom), lack of sweating (skin will feel hot and dry to touch), flushed or reddened skin, rapid breathing, racing heart rate, and strong or bounding pulse to name a few. If you notice anyone with these symptoms, seek emergency treatment.  Make sure if you have to be outside to drink plenty of water, wear light colored clothing, and seek shade or air conditioning as often as possible.

    Alright, now back to the weather. There is some good news in this week’s forecast so let’s discuss that. Due to the hot and moist air mass, we will see a daily chance of scattered showers and thunderstorms. Furthermore, a 30 to 50 percent coverage of showers and thunderstorms will be the trend through the extended which of course will help to cool off the areas that receive the rainfall. Storms may become strong to even severe at times. Another hint of good news is the fact that the upper level ridge will retrograde westward by the end of the week taking highs down into the lower to middle 90s with lower heat index values in the lower 100s. I know that is only slightly cooler, but every little bit helps. Low temperatures through the week will remain in the lower to middle 70s.

    The tropics are remaining quiet for now, but I will monitor conditions closely.  Have a great week, stay cool, and thanks for reading.   



    Trent Hughes is a meteorologist with several years of experience in broadcasting.  He earned a Bachelor of Science in Geosciences and Broadcast Meteorology from Mississippi State University.  Email him at trent.hughes@comcast.net.  

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