The winter weather advisory will be allowed to expire early this morning but be careful out there and good luck chipping all of that ice away. This afternoon we will have at least some sunshine to work with to help melt those roads. But this is only a brief reprieve to a very stormy pattern. We are still in the ice zone that is for sure since we are lying right on the southern boundary of arctic air. Take a look at this interesting set-up. You combine this with the Pineapple Express and we are ripe for one interesting storm after another. This is what I call an ice pattern with the cold air to our north and near the surface and a warm, tropical flow aloft. So instead of temperatures decreasing with height like they normally do they are increasing with height causing all kinds of chaos for our weather. Cold temperatures that normally bring snow are now bringing a mixed bag of all types of precipitation. Indiana is known for its great people, corn fields, basketball, and wacky weather. This pattern is vintage Indiana. Check out the moisture you can track all the way to Hawaii.
I call this the Pineapple Express because this train of moisture comes all the way from the Pineapple State of Hawaii and it will continue to bring us more wintry weather not only this week but into Christmas week. Take a look at our Pineapple Express snow totals from yesterday across the area.
The snowfall amounts from yesterday were very important in at least two ways. Since we know we are in an active pattern the add snow cover farther south tends to shift the main storm track a little farther south since pressures fall more easily over warmer terrain. So the old saying that snow breeds more snow works well here. Although in our case this week our saying will have to be ice will breed more ice. Last night our roads became more like ice rinks. It is a warning sign of what lies ahead as you see below.
Most areas had a coating of a tenth of an inch of ice or less and it caused huge problems with numerous slide-offs, tough walking conditions,crackling trees in the wind, and cars that took 30 minutes to de-ice.Thursday night could be a much more menacing ice storm with freezing rain bringing our ice totals up to a quarter inch or more. This is when we start worrying about trees, powerlines, and power outages. We will keep you updated on amounts as we get closer but for now I am worried about some significant icing in our viewing area. I love snow, but would rather have plain rain than ice after all the ice stories I heard from the great ice storm of March, 1991. If anyone has any pictures of this storm please send them my way. I am not calling for a repeat of this but there were many lessons learned that can help prepare us for what is coming on Thursday night. Enough of this ice talk!
Next week the main arctic boundary will continue to slide south as we get more snow on Sunday. This I think will give us a very good chance of a White Christmas with more arctic air to work with along with this active pattern. So the news is good for less ice and more snow but keep in mind I want everybody to be able to enjoy the holidays and the beautiful Hoosier winter wonderland but we really need to be careful on the roads and be smart as to when we travel. This is why we have the blog here at WLFI since I cannot be on the air 24 hours a day. At least not for now. Here is the next system moving in from the west and southwest and the purple shading will likely be freezing rain. This will likely move into Lafayette on Thursday afternoon.
Tune in tonight for the latest on timing and amounts. Have a wonderful day, be safe, and happy chipping.