Zone 6 & 7 Forecast: Active Week Ahead With Wind, Storms, & Snow. JT.

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Detailed short and long range premium forecast:

Forecast Discussion:

EVENING – TONIGHT: An area of high pressure remains in place across the region this afternoon. This has resulted in temperatures in the 50’s and 60’s across zones 6 and 7 with sunny skies.

now

Through the overnight clouds will thicken up across the forecast area. As they do rain and thunderstorms will move into Illinois as a low pressure system and cold front move through the region.

By 6-8 AM rain and thunderstorms will be moving across Illinois as the cold front approaches from the west.

TUE7A,

Through the morning hours until mid-day will be the best timing for rain and heavier thunderstorms. While I’m not anticipating any severe weather a couple of storms may produce some gusty winds and small hail.

TUE10A

Some isolated to scattered areas of rain will remain possible across Illinois Tuesday afternoon. However, cold air will start to surge in across the area. As it does any leftover moisture will chance over to snow from west to east. This changeover looks to occur around 1-2 pm west continuing east through the afternoon.

TUE4PM

Highs on Tuesday will be in the mid 40’s north to upper 50’s south. However, temperatures during the late afternoon into the evening will quickly fall and go below freezing. So any wet surfaces will become icy.

tuepanel

Overnight Tuesday into Wednesday dry air will start to work into the forecast zones. As it does any remaining snow showers or flurries will shut off. It looks like any remaining snow will end by 1-2 AM Wednesday.

WED1AM

The heaviest snow looks to impact places to the north of the region through late Tuesday night. Right now it looks like little to no snow is anticipated across the forecast zones.

snow

Regarding new rainfall, .15-.35” looks most common across zones 6 and 7. However, models are in pretty good agreement that heavier amounts of 1-1.5” will be possible across the very southern portions of zone 6. If this were to occur at least localized flooding could become a problem.

RAINFALL

Lows overnight will be in the upper teens north to low 30’s south. Winds will remain strong with gusts up to 35 mph possible.

WEDNESDAY: An area of high pressure will start to ridge southward into the region on Wednesday. This will allow us to start out with partly to mostly sunny skies. However, as the day wears on clouds will start to thicken up ahead of the next weather system.

WED

Highs on Wednesday will be in the low 30’s to mid 40’s.

wedpanel

By late in the afternoon into the evening hours rain and snow will start to spread into northwestern portions of zone 7.

WED10PM

Through the overnight rain and some snow will continue to work to the southeast across zones 6 and 7. Right now models are pretty warm, so mostly rain is forecast. However, these systems do have a tendency to come south, so it’s a forecast we will fine tune as we get closer.

THU8AM
THU 8 AM

Lows will be in the mid 20’s to upper 30’s.

THURSDAY: The area of low pressure will continue to the south of the region Thursday. As it does at least rain chances will continue across zones 6 and 7. However, depending on the low track and how warm temperatures are, snow could be possible, especially across zone 7.

thursday

Highs on Thursday will be in the mid 30’s north to low 50’s south.

By late Thursday evening into the overnight rain and snow showers will come to an end across the forecast region. Lows will be in the upper teens to mid 30’s.

thu 7 pm
THU 7 pm

FRIDAY – SATURDAY: We will continue on a northwesterly flow to end the week and start the weekend. This will keep at least the chance of another clipper system in the forecast late Friday through Saturday.

GIF500

7 DAY FORECAST

TUESDAY: CLOUDY WITH RAIN AND A FEW THUNDERSTORMS EARLY. RAIN CHANGING OVER TO SNOW FROM EAST TO WEST THROUGH THE AFTERNOON AND EVENING. SOME SNOW ACCUMULATION LIKELY IN AREAS. HIGHS IN THE MID 40’S NORTH TO UPPER 50’S SOUTH. SOUTHWEST TO NORTHWEST WINDS AT 5-15 MPH, GUSTING TO 30 MPH.

TUESDAY NIGHT: CLOUDY, SNOW SHOWERS END FROM WEST TO EAST OVERNIGHT. PERHAPS A FEW LAKE EFFECT SNOW SHOWERS NORTH. LOWS IN THE UPPER TEENS NORTH TO AROUND 30 SOUTH. SOME SNOW ACCUMULATION LIKELY EARLY IN THE PERIOD.

WEDNESDAY: A FEW AM SNOW SHOWERS, THEN PARTLY CLOUDY. HIGHS IN THE LOW 30’S NORTH TO MID 40’S SOUTH. EASTERLY WINDS AT 5-10 MPH.

**WEDNESDAY NIGHT: CLOUDS INCREASE, SNOW POSSIBLE NORTH WITH RAIN POSSIBLY ACROSS SOUTHWESTERN ZONES. SNOW ACCUMULATIONS POSSIBLE. LOWS IN THE MID 20’S NORTH TO MID 30’S SOUTH.

**THURSDAY: CLOUDY, RAIN AND SNOW CHANCES CONTINUE. AGAIN SOME ACCUMULATING SNOW POSSIBLE. HIGHS IN THE LOW 30’S NORTH TO LOW 50’S SOUTH. EASTERLY WINDS AT 6-12 MPH, GUSTING TO 20 MPH.

THURSDAY NIGHT: DECREASING CLOUDS, RAIN AND SNOW END. LOWS IN THE UPPER TEENS NORTH TO MID 30’S SOUTH.

FRIDAY: MOSTLY SUNNY TO PARTLY CLOUDY. HIGHS IN THE MID 30’S NORTH TO UPPER 40’S SOUTH. NORTHEAST WINDS AT 5-10 MPH.

FRIDAY NIGHT: INCREASING CLOUDS, SNOW POSSIBLE LATE? LOWS IN THE LOW 20’S TO MID 30’S.

SATURDAY: CLOUDY WITH A CHANCE OF RAIN. HIGHS IN THE MID 40’S TO MID 50’S.

SATURDAY NIGHT: RAIN ENDS AND SKIES CLEAR. LOWS IN THE MID 20’S TO UPPER 30’S.

SUNDAY: SUNNY TO MOSTLY SUNNY, WARM. HIGHS IN THE LOW 50’S TO LOW 60’S.

SUNDAY NIGHT: INCREASING CLOUDS. LOWS IN THE UPPER 30’S TO UPPER 40’S.

MONDAY: MIX OF CLOUDS AND SUN, VERY WARM! HIGHS IN THE MID 60’S TO LOW 70’S.

MONDAY NIGHT: INCREASING CLOUDS, RAIN AND A FEW THUNDERSTORMS WEST. LOWS IN THE 50’S.

 

** The rain/snow line and accumulations will depend highly on the low track. This is a forecast we will fine tune in the days to come.