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Archive for December, 2010

Dec
25

Merry Christmas!

Posted By · December 25, 2010 at 5:32 am

The heaviest snow from last night’s storm was found in Western Indiana.  Portions of Tippecanoe County picked up 4-5″ of snow, Frankfort reported 3″, Indianapolis received 1.8″, and Broadripple picked up 1″.  If you have a snow total to share, please leave it below in the comments section.

Now, for today’s forecast!  Highs today will reach the upper 20s with cloudy skies.  Scattered snow showers are still possible, but only a dusting of snow is expected… if that!

Overnight, scattered snow showers again, with little to no accumulation.

Sunday, light snow showers are possible, with little to no accumulation. 

Monday, we are back to sunshine, and on a way to a nice toasty forecast!  By Wednesday we’re above freezing, with a rain/snow mix, and we could see 50 by Friday!

Indianapolis Seven Day Weather Forecast

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Dec
24

Christmas Eve & Christmas Day Snow

Posted By · December 24, 2010 at 4:56 am

Here we snow again! 

Let’s start off with the Winter Weather Advisory.  It’s in effect for most of Central Indiana from 1pm today to 7am Christmas Day.

Today accumulating snow showers will likely develop by late this afternoon.  Slick roads should be expected by this evening.  If you’re heading out to midnight mass, expect slick roads and heavy snow.  The heaviest snow is likely to fall from 10pm to 4am.  This evening 1-3″ of snow is possible.

Early Christmas morning 1-2″ of additional accumulation is possible.  Accumulating snow showers are expected to taper off by late morning, but scattered snow showers will still be possible throughout the day.

Total snow accumulations will be 2-5″ of snow with the heaviest snow falling from a line from Crawfordsville, to Indy to Columbus, and Southwest of that line.

Sunday, flurries and lake effect snow showers are possible.

Monday and Tuesday look dry. 

Happy White Christmas!

Indianapolis Seven Day Weather Forecast

Comments (1)
Dec
23

Tracking Christmas Eve Snow

Posted By · December 23, 2010 at 4:18 am

Today will be the best travel day across Central Indiana.  Highs will hit the low 30s with a mix of sun and clouds.  Patchy fog is possible for the morning, with temps below freezing, slick spots will be possible too.

Now, for the snow!  There’s a chance for snow Christmas Eve morning, but it looks like the snow develops for the afternoon into the evening.  We could pick up 1-3″ of snow for Christmas Eve.

Snow showers look to continue until midday Christmas Day, with another 1-2″ of snow possible.  At this time, the heaviest snow and highest snow totals look to be found south of I-70. 

This could change as this system continues to evolve, so stay with us for the forecast.  Bottom line, if you’re traveling late Christmas Eve or Christmas Day, you’ll encounter snow and slick spots.

Flurries are likely Sunday with more cold air moving in for next week.

Indianapolis Seven Day Weather Forecast

Comments (3)
Dec
22

Wednesday’s Forecast & Christmas Eve Storm

Posted By · December 22, 2010 at 5:41 am

Temperatures today will hold steady in Central Indiana around 30 degrees.  Patchy drizzle, flurries, and fog will be possible.  Slick spots are still possible out on the roadways, so use extra care!

Overnight, clouds break and that means temps fall.  Overnight lows will drop to around 20 degrees.

Thursday, a mix of sun and clouds comes our way with highs in the low 30s.

Now for that big Christmas Eve storm.  What’s going on with it?  The latest computer models are taking it south of Indiana.  It’s a southern track that rules out heavy snow across our state.  I think it’s still possible that we could see an inch of snow in Central Indiana, with up to 3 inches of snow possible in the southern portion of the state.  We’ll continue to watch the storm develop.  The snowfall projected would be from Christmas Eve through Christmas Day.

Lake effect snow showers could bring us a little more snow on Sunday with much colder air coming our way next week.

Indianapolis Seven Day Weather Forecast

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Dec
21

Looking Ahead to What Else… More Snow!

Posted By · December 21, 2010 at 6:39 am

This latest winter weather system spit out 3.8″ of snow in Indy.  That puts our total for the month of December as 14.7″ of snow, the 6th snowiest on record, and we’re looking for even more snow before the week is done!

Today, watch out for freezing drizzle across the state.  Highs will reach the mid 30s.  Finally, a day above freezing!

Overnight into Wednesday, a few flurries are possible.  Tonight temps drop to the mid 20s, tomorrow we warm into the low 30s.

Thursday, highs hit the low 30s, and it looks like the best travel day of the week!  We will see mostly cloudy skies, but dry conditions.

Christmas Eve, snow is likely with accumulation throughout the day, continuing into Christmas Day.  It’s still too early to be forecasting snow amounts.  Just know, that travel is expected to a mess Friday and Saturday.  I know it’s frustrating not knowing how much snow to expect, but we want to give you consistent weather updates.  Right now the models are anything but on target, so we will wait and let you know when we are confident in the forecast! 

Indianapolis Seven Day Weather Forecast

Comments (5)
Dec
20

The Snow Cover of Christmas Past

Posted By · December 20, 2010 at 1:40 pm
The following number crunching was prepared by the Indianapolis National Weather Service.  Click here to be redirected to their original web page.

There are several ways to define a White Christmas. For the purposes of our historical look back, we’ll include a White Christmas as any day that has either at least a trace of snow on the ground, or experiences at least a trace of snow falling that day. In more general terms, we’ll define a White Christmas as any Christmas day that Indianapolis sees snow.

So what is the chance of at least a trace of snow falling at Indianapolis on Christmas day? Well, snowfall records on Christmas day have been kept in the Indianapolis area since 1871. And in that 138 year period of record, a trace of snow (or more) has fallen 62 times. This could be equated to a 45% chance of at least a trace of snow falling on Christmas Day.

Our other possibility for a White Christmas would be if there was at least a trace of snow already on the ground. This could be old snow from a week ago, or just the day before. Snow depth records don’t go quite as far back, and these were started in 1896. And in that 113 year span, there has been at least a trace of snow on the ground on Christmas Day a total of 60 times. This could be equated to a 53% chance of at least a trace of snow on the ground on Christmas Day.  The last Christmas that saw snow on the ground in Indianapolis was in 2004, just a few days after a major snow storm produced 1 to 2 feet of snow over central Indiana. Snow did fall on Christmas Day 2005, 2006 and 2009, but due to temperatures in the 30s and the snow mixing with rain, none of it stayed on the ground.

With both of our possibilities for a White Christmas explored, what then is our final chance? What would our probability be of having either a Trace or more of snow falling, or a Trace or more already on the ground? Since 1871, this has happened in a total of 97 times, where either the snow has fallen or already been on the ground. This gives us an overall probability of 70%! Which means that 7 out of every 10 years, on average, will see either some snow falling or some snow already on the ground for Christmas Day.

So if a White Christmas is your dream, then you’ll probably take heart in these numbers. Much more often than not, there will be at least a few flakes around to greet us come Christmas Day!

 
Here are a few snow extremes from Christmas Day:

 

Greatest Snowfall on Christmas Day
Greatest Snow Depth on Christmas Day
5.9” in 1909
9” in 2004
4.4” in 1926
7” in 2002
3.3” in 1890
7” in 1909
2.6” in 2005
6” in 1995
2.4” in 1935
6” in 1935

 

  
And a few temperature and precipitation extremes as well:

 

Warmest Max Temp
Coldest Max Temp
Warmest Min Temp
Coldest Min Temp
Most Precipitation
64 in 1893
-4 in 1983
55 in 1877
-15 in 1983
1.36 in 2005
63 in 1982
7 in 1985
50 in 1889
-5 in 2000, 1878
1.14 in 1957
63 in 1889
10 in 1924
45 in 1982
-4 in 1935, 1924
0.98 in 1982
59 in 1877
13 in 1884
44 in 1888
-3 in 2004, 1980
0.72 in 2006
58 in 1973,1932,1891
14 in 1980, 1902
42 in 1940, 1936, 1895, 1891
-2 in 1872
0.61 in 1926

 

 Data prepared by the Indianapolis WFO Climate Team

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Dec
20

Here We Snow Again

Posted By · December 20, 2010 at 6:28 am

Highs today will reach the low 30s with thickening cloud cover as we head into the afternoon.  There may be a few snow showers during the evening commute, but the majority of the snow looks to move in tonight and stick around through Tuesday morning.  This will be a light snow all night, so we won’t pick up much.  We’re looking to get 1-2″ of snow from this event.  North of I-70 will pick up higher totals than areas South of I-70.  Once again, it’s the magical divider!

This isn’t a huge snowfall, but our concern is what could happen Tuesday morning as warmer air mixes in.  Snow showers could turn to sleet or even freezing drizzle.  So, roads could be very slick Tuesday morning.  The bulk of the precip should move out by midday Tuesday.

Wednesday and Thursday look dry, but then we start to focus on a winter storm that moves in late Thursday night and sticks around for Christmas Eve and Christmas Day.  It is very early in the game right now, so we won’t throw out snow predictions.  I will say that this storm looks to have significant snow accumulation and could cause travel problems across the state considering how many people will be out on the roads. 

Stay tuned to WTHR and the weather blog for updates.  I know you want specifics about what’s going to happen, but as of right now, it’s just too early.

Indianapolis Seven Day Weather Forecast

Comments (0)
Dec
19

More Snow on the Way

Posted By · December 19, 2010 at 6:36 am

Highs today will reach the mid 20s in Central Indiana with increasing clouds.

Overnight, flurries are possible, and an isolated snow shower may be possible.  Most spots won’t see any accumulation, but a light dusting may hit some areas.  Overnight lows drop to around 20 degrees.

Monday, we’ll see cloudy skies with a high in the low 30s.  Just after the evening rush hour, snow showers move in and look to stick around through Tuesday morning.  One to three inches of snow is possible across Central Indiana.  Early Tuesday warmer air mixes in, so we could see a wintry mix, or even rain by midday Tuesday.  These snow totals could change, so stay tuned to the forecast!

We dry out Wednesday and Thursday, but have our eyes on another potential snow maker moving in Christmas Eve and Christmas Day.

Indianapolis Seven Day Weather Forecast

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