February 7, 4 PM Weather Forecast Update

More snow ahead.

Posted: Feb 7, 2020 4:22 PM
Updated: Feb 7, 2020 4:59 PM

Totals from storm system Wednesday-Thursday.

Highest totals with system were in Will & Cook counties in northeastern Illinois with up to 6".

Our highest totals were in northwestern & southern Newton & central Jasper counties, as well as an area in central Howard & southern Miami counties.  The lowest totals were in southeastern Montgomery County.

4.3"  Lake Village

4.2"  Rensselaer

4.1"  3 WSW Kokomo

4.0"  Kentland

4.0"  Converse

3.1" Demotte

3.0"  Earl Park

3.0"  Burlington

2.2"  Enos

2.2"  Young America

2.0"  Peru

2.0"  Rochester

2.0"  Logansport

2.0"  Winamac

1.8"  Remington

1.7"  Francesville

1.6"  5 W Chalmers

1.5"  Morocco

1.5"  Boswell

1.5"  WLFI (West Lafayette)

1.4" Monticello

1.3"  Northeast Lafayette

1.3"  Southeast Lafayette

1.1"  4 N Frankfort

1.1"  Frankfort

1.0"  1 SW Pence

0.6"  6 SSE Crawfordsville


Alberta clipper passes tonight-Saturday with wave of steady snow 12-9 a.m., followed by scattered snow showers.  Some snow showers may turn into squalls with brief, gusty heavy snowfall, given such cold air aloft with some steep lapse rates Saturday midday-afternoon-evening. 

This will mean, steadier snow overnight-morning, then convective-type off/on snow showers/squalls with sudden sharp reductions in visibiity at times Saturday afternoon.

Total snowfall tonight to Saturday night will tend to run 0.6-1" over much of the area.  Howevere, there will be localized bands of 1-2".  An isolated 2-3" report or two cannot be ruled out.

All snow showers should end by midnight Saturday night.

As quickly as clipper departs, system will arrive Sunday with snow arriving in our southwestern counties by 1 p.m., then overspreading the area, before changing to sleet & freezing rain.

It appears that 1-2.5" of snow & ice may occur along & north of US 24, with 1" or less south of 24.

It looks as if everyone should go to rain by 7 p.m. & this transition should occur quickly from south to north.

The rain should end as some light snow with a transition northwest to southeast in the 11 p.m. to 1 a.m. time frame.

Any accumulation after the rain should run less than 1".

Up to 12" of snow is possible with this system from southeastern Minnesota to Wisconsin with strong, gusty winds.

Wednesday-Thursday is looking different.

Rather than ice to rain to snow here, system is trending much farther to the south.

Note how clipper & southern system merge & major storm system develops with more flooding rainfall & severe weatehr in the south but potentiall a winter storm on its northern tied from Oklahoma to far southern Indiana, Kentucky to West Virginia & Virginia.

Data seems to think intense Arctic high will come in sooner & push things more to the south & make our Wednesday much colder compared to what recent data has been showing with a 37-44 high.

We need to watch this closely because if Arctic high does not move as far to the southeast, then we may see this system track farther northward with risk of snow here.

If that occurs, it would be a wind-driven, blowing & drifting snow with tight pressure gradient between Arctic high over the northern Plains & strong surface low south of our area.

Also, given the flooding event expected in the South, that may intercept moisture moving northward.

So, overall, just remember we will need to watch Wednesday-Thursday, but forecast confidence is low right now on what will occur.

We also need to watch around February 18-19.

Strong storm system on the Gulf Coast may track northeastward & merge with clipper-type system near or over our area.

This could bring wintry precipitation to our area.

Article Comments

West Lafayette
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Warmer, dry weather is ahead for the weekend.
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