Residents in the Knoxville area should be prepared for a wet and stormy day ahead. According to the National Weather Service in Knoxville, showers and thunderstorms are mainly expected after 3 pm today, with an 80% chance of precipitation. The high is anticipated near 88 degrees, with heat index values possibly reaching as high as 95 due to the humidity, which stood at a stifling 94% this morning. Calm winds from the southwest around 5 mph are also on the forecast, and new rainfall amounts could range between a tenth and a quarter of an inch, though higher amounts are possible during thunderstorms.
As evening approaches, the showers and thunderstorms are likely to persist mainly before midnight, with the temperature dropping to a low around 70 degrees. Southwest winds will continue around 5 mph before becoming calm and the chance of precipitation will remain at 80%. Between a quarter and half an inch of new rainfall is predicted, which brings possible risks of localized flooding. The National Weather Service in Morristown TN has warned that isolated severe storms are possible, with the main hazards being damaging winds and localized flash flooding.
Moving into Wednesday, Knoxville residents should expect patchy fog before 9 am. The skies will clear up, offering mostly sunny weather and a high near 89 degrees with calm winds that are set to become northerly at around 5 mph. This respite is quick to end, as the upcoming days are forecasted to be sunny and hot. High temperatures will be clawing their way towards the 90s, and by Independence Day, the high is expected to reach 92 degrees under sunny skies with calm winds.
As the region approaches the weekend, the heat wave shows no signs of slowing down. The forecast from Thursday through Sunday consistently calls for sunny and hot conditions, with daytime highs inching close to 94 degrees. Friday night, in anticipation of Independence Day activities, will be mostly clear with a low around 70. The National Weather Service advises that heat index values are poised to just surpass the 100-degree mark across the southern valley near Chattanooga from Friday through the weekend. For those planning outdoor events, staying hydrated and seeking shade will be essential.
