Significant Severe Weather and Heavy Rainfall Event in the Central U.S.; Critical Fire Weather in the Southwest

Significant severe weather and heavy rainfall is likely from the central and southern Plains into the the Ozarks today into tonight. Tornadoes, potentially strong to intense, large hail and damaging winds are possible. Critical fire weather including gusty winds and low humidity will continue today over parts of Arizona, New Mexico, west Texas, and the central valley of California. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

74°F

23°C

Humidity 79%
Wind Speed SW 9 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 May 11:53 am EDT
Extended Forecast for

Alcoa TN

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 83. West wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 3am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 65. Calm wind.  Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could be severe.  Low around 65. Southwest wind around 10 mph.  Chance of precipitation is 90%.

    Low: 65 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am. Some of the storms could be severe.  Mostly sunny, with a high near 77. West wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    High: 77 °F

    Severe
    Thunderstorms
    then Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am.  Partly cloudy, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 2pm.  Mostly sunny, with a high near 70. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm.  Partly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 65. Southwest wind around 10 mph. Chance of precipitation is 90%.
Wednesday
Showers likely and possibly a thunderstorm before 8am. Some of the storms could be severe. Mostly sunny, with a high near 77. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of showers, mainly after 2pm. Mostly sunny, with a high near 70. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 70.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Alcoa TN
 35.8°N 83.96°W (Elev. 856 ft)
10:09 am EDT May 19, 2025
12pm EDT May 19, 2025-6pm EDT May 25, 2025
 
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Additional Resources

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