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Weather Alert

Weather Alert

...HEAT ADVISORY NOW IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ FRIDAY...

* WHAT...Daily Heat index values up to 106.

* WHERE...All of southern Illinois, southwest Indiana, western
Kentucky, and southeast Missouri.

* WHEN...Until 7 PM CDT /8 PM EDT/ Friday.

* IMPACTS...Prolonged exposure to hot temperatures and high humidity
may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

Sunny this evening before an active Sunday

  • Updated
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Hour by Hour

WSIL(Carterville, Ill.)-- This evening most of us are enjoying temperatures in the low 80s and mostly sunny skies. As we go through the remainder of the evening and early overnight hours on Saturday (before midnight), conditions will continue to be mild and clear. 

Severe risk map

As we turn our attention to Sunday, things will not be as calm and tranquil. We are tracking several chances of storms for Sunday. 

The first round will likely arrive in our western most counties as early as 5AM tomorrow morning and track from west to east. This round will primarily be a line of storms, with the primary hazards being the potential for damaging winds and a brief spin-up tornado along the leading edge. This line should exit the area around 9 or 10 tomorrow morning. 

Behind this line we could see a second line develop and track west to east, and be capable of producing the same hazards. There is some uncertainty with this second line, but if it does develop, we could see it exit the area around noon to 1PM. 

We will see a little bit of a break during much of the afternoon hours, and we may even see the sun come out. Highs tomorrow could be in the low to mid 80s. Those highs will be highly dependent on how much sun we see. 

Any sun we do see will provide fuel for yet another round of storms. We could see supercell thunderstorms develop after 4 or 5PMtomorrow afternoon. If they develop, they will be capable of producing large hail, damaging winds, and tornadoes. after about 7 to 8PM tomorrow evening, we will see a final line of showers and storms enter the area and it will track from northwest to southeast through the late evening. This line will be capable of producing damaging winds, tornadoes, and large hail. This line will exit around midnight to 2AM Monday morning. Once this line passes, the severe weather threat will be over. 

In addition to the severe weather potential, there is also the potential for localized Flash Flooding due to several storm chances. For this reason, there is a flood watch for the entire area from 1AM tomorrow morning through early Monday morning. 

Once the front passes Monday morning, a mild and sunny pattern will dominate next week. Highs will be in the mid to upper 70s Tuesday through Friday.Â