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First Alert Weather Day Tuesday: Favorable conditions for severe weather

Storms developing ahead of a cold front is expected to slide through the region Tuesday afternoon
Published: Aug. 9, 2021 at 12:16 PM CDT|Updated: Aug. 10, 2021 at 7:28 AM CDT
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WAUSAU, Wis. (WSAW) - Expect locally dense areas of fog for Tuesday morning, with visibility under one mile at times throughout sunrise. Travel conditions will remain poor at times until the fog lifts by the mid-morning hours.

A dense fog advisory in effect this morning until 8:00 AM. However, treat this advisory as if...
A dense fog advisory in effect this morning until 8:00 AM. However, treat this advisory as if it were for our entire viewing area. Visibility is low everywhere.(WSAW)

While hazy sunshine begins to return Tuesday morning, a strong cold front will push into Wisconsin by the early afternoon, with strong to severe thunderstorms becoming likely across the area. Additionally, hot and oppressively humid conditions are in store Tuesday afternoon and again Wednesday.

Storms expected to arrive during the afternoon hours.
Storms expected to arrive during the afternoon hours.(WSAW)
An enhanced risk for parts of our region to the south. Affected areas in our viewing area...
An enhanced risk for parts of our region to the south. Affected areas in our viewing area include Juneau, Adams and Waushara counties.(WSAW)

Today will be a hot and humid day. High temperatures this afternoon are expected to reach the mid-80s, while dew points will into the low to mid 70ss. These dew points are brutal and will feel oppressively hot and will provide more storm fuel for storms to remain strong throughout the day.

High temperatures this afternoon
High temperatures this afternoon(WSAW)
Oppressively humid this afternoon as dew points are expected to reach the mid-70s
Oppressively humid this afternoon as dew points are expected to reach the mid-70s(WSAW)

Despite temperatures in the 80s, the heat indices (real-feel) will be a different story. Heat indices are expected to be in the lower 90s Tuesday afternoon. This creates a concern as any storm developments will thrive off of this heat and moisture. Prior to the arrival of storms, some clearing skies in the morning will lead to some sunshine.

Heat indices look to be near 100-degrees this afternoon. Any storm development will thrive off...
Heat indices look to be near 100-degrees this afternoon. Any storm development will thrive off of this heat.(WSAW)

Storms are expected to arrive during the afternoon, as early as 1:00 PM. Storms are expected to slide eastward through the region into the early evening hours as the cold front passes.

Storms develop Tuesday afternoon in a favorable environment for severe weather.
Storms develop Tuesday afternoon in a favorable environment for severe weather.(WSAW)

Severe weather threats include damaging wind gusts, up to 60-70 mph, large hail up to 1″ in diameter, and torrential downpours leading to localized flash flooding, and intense lightning. Main threats will be gusty winds (potentially causing wind damage), and heavy rainfall.

Threats this afternoon include damaging wind gusts over 60 mph, large hail, isolated tornadoes,...
Threats this afternoon include damaging wind gusts over 60 mph, large hail, isolated tornadoes, and heavy downpours.(WSAW)

Continue to stay weather aware and watch the forecast closely for any changes.

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