Icing Event Begins Later Sunday

UPDATED POST:  Saturday, January 14, 2017, 3:54 p.m.

I hope everyone is having a great weekend.  Here’s my final update for the day.  I’ll have another one early Sunday.

First off, the latest models continue to slow the onset of the wintry mix Sunday.

The start time for the advisories will coincide with the start of the wintry mix of snow, sleet, and freezing rain.

A “Winter Weather Advisory” (blueish-purple shading) will go into effect Sunday into Monday for most of eastern Iowa and west-central Illinois.  This replaces the “Winter Storm Watch” that was to go into effect Sunday.

The “Advisory” will run from 3 p.m. Sunday through noon Monday for Des Moines, Henry, Jefferson, and Washington counties in Iowa, and for Henderson and Warren counties in Illinois.

For Knox and Stark counties in Illinois, the “Advisory” runs from 6 p.m. Sunday through noon Monday.

And, for the rest of the counties included in the “Advisory”, it runs from 9 p.m. Sunday through noon Monday.

Those counties are Cedar, Clinton, Jackson, Johnson, Louisa, Muscatine, and Scott counties in Iowa and Henry, Mercer, and Rock Island in Illinois.

The bottom line is the worst of the freezing rain and icing will be Sunday night through mid-morning Monday!

I’m still thinking we’ll see between one-tenth and one-quarter of an inch of ice!

Anthony

UPDATED POST:  Saturday, January 14, 2017, 9:39 a.m.

Just a quick note before you read the details of Sunday’s ice storm below.  The main event and the worst of the storm will be Sunday night and early Monday.

The storm, as expected, is still showing signs of slowing down even more.

Have a great weekend and read on to be prepared.

Anthony

ORIGINAL POST:  Saturday, January 14, 2017, 6:17 a.m.

The much anticipated ice storm is still coming Sunday, but it’s not likely to arrive for most of us until later in the day.

I talked about this in my Friday afternoon update and after looking at the new information this morning, I think we’ll have a few more ice-free hours Sunday.

A “Winter Storm Watch” goes into effect Sunday.

Locally, this “Watch” runs from 6 p.m. Sunday through noon Monday, except for Knox and Stark counties in Illinois.  There, the “Watch” begins at midnight Saturday and runs through 6 a.m. Monday.

At the bottom of the map you see a fuchsia and purple shading.  Those counties are under a “Freezing Rain Advisory” (fuchsia) and “Ice Storm Warning” (purple).

Later today or early Sunday morning, I expect our “Winter Storm Watch” to be changed to either a “Freezing Rain Advisory” or a “Winter Weather Advisory”.

Now, let’s talk about when this all starts and how much ice we’re expecting.

A light wintry mix may begin Sunday morning across the far south.

Hometowns from Ottumwa and Burlington, Iowa, to Galesburg, Illinois, could see a combination of snow, sleet, and freezing rain begin around midday Sunday.

For the Quad Cities and hometowns along and just south of Interstate 80, that wintry mix will start in the afternoon (4-7 p.m.).

Areas north of the metro area may see mostly snow for a while once it starts Sunday evening.

This wintry mix will transition to all freezing rain Sunday night and early Monday morning from south to north as temperatures warm overnight.

By mid-morning Monday, temperatures will be warming into the 30s and then the low-40s by afternoon, so it’ll be all rain and the ice will begin to slowly melt.

 

As you head south into those higher numbers, ice amounts could be closer to one-quarter of an inch.

Ice Ray

That’s a lot of ice!

Driving will be very hazardous Sunday night and early Monday.  Trees and power lines will have a heavy coating of ice, which could cause power outages and interruptions to cable, phone, and internet services.

While the ice might be pretty to look at, this is a very dangerous situation.

The only silver lining is that winds are not expected to be strong during this icing event at around 6-12 miles-per-hour.

I’ll have another update later Saturday.

Warmer temperatures are on the way starting Monday.  By the end of the next week, we could see highs in the 50s!

Anthony

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