Home Weather 7/21/25: Severe Weather Alert – Storms and High Heat Expected

7/21/25: Severe Weather Alert – Storms and High Heat Expected

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Lightning weather conditions for local forecast
WEATHER ALERTS

Heat Advisory

Heat Advisory issued July 20 at 8:14PM CDT until July 23 at 8:00PM CDT by NWS Nashville TN

* WHAT…Heat index values up to 108 expected.

* WHERE…Cannon, Coffee, and Smith Counties.

* WHEN…From 11 AM Monday to 8 PM CDT Wednesday.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.

SAFETY INSTRUCTIONS

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

Alert in effect from July 21, 2025 1:14 AM until July 21, 2025 8:00 PM

Weather Alerts

Current weather conditions are being closely monitored in Cannon County due to severe weather. A Heat Advisory is in effect until July 23 at 8:00 PM CDT, with heat index values expected to reach up to 108°F. Please stay tuned for further updates and remain weather aware.

Severe Weather Conditions

It’s currently 5:10 AM in Cannon County, TN, with severe weather conditions prevailing. The temperature is 73°F with high humidity at 100%, making it feel much warmer outside. Wind conditions are calm, which can intensify the discomfort caused by the humidity. The sky is overcast, contributing to the oppressive atmosphere.

Weather Changes Coming

As we progress through the day, temperatures are forecasted to rise significantly, reaching a high of 91°F. This increase in heat, combined with high humidity, will create a challenging environment outdoors. Be prepared for the heat to feel even more intense due to the humidity levels, especially after 11 AM when the heat advisory takes effect.

Today’s Outlook

Later today, expect the severe weather to continue with rising temperatures. The peak heat will occur in the afternoon, amplified by the humidity. It’s advisable to stay hydrated, avoid strenuous activities, and find shade when outdoors. Be cautious and keep an eye on any symptoms of heat-related illnesses as you go through your day.

View real-time weather conditions on our interactive radar map

Cannon County, TN
July 21, 2025

73°
H:91°
L:73°

wind icon
Wind
0 to 5 mph WSW

humidity icon
Humidity
100%

bolt icon
Conditions
severe weather

24-Hour Forecast

Monday
cloud-rain icon
91°
|
71°
Showers And Thunderstorms Likely

Tuesday
cloud-rain icon
90°
|
71°
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms

Wednesday
sun icon
92°
|
72°
Sunny

Thursday
sun icon
92°
|
72°
Sunny then Slight Chance Showers And Thunderstorms

Friday
sun icon
90°
|
73°
Sunny then Chance Showers And Thunderstorms

Saturday
cloud-rain icon
90°
|
72°
Chance Showers And Thunderstorms

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