Tuesday/Early Afternoon

WEATHER CODE: GREEN ***No hazardous weather expected***



After a dry and rather cold day today, yet another storm system is about to move into the Ohio Valley Region tomorrow with a round of rain and snow.

Let's go through a few models...

Here is the GFS for tomorrow evening

(CLICK ON ANY IMAGE FOR LARGER VIEW)



That blue line is the freezing line about 5,000 feet above the surface. As you can see that line is still north of us by tomorrow evening, so most of the precipitation is rain.

Here is the GFS by tomorrow night



That freezing line is now south of Southern Indiana and just south of the Louisville area, but most of the moisture by this time would have moved well off to our east. All in all this doesn't look like a big snow maker for the region, and if anything, we may see a dusting of snow. Most other models support this solution as well so I will go with rain changing to snow, but with very little accumulation.

Next chance of precipitation will be Saturday/Saturday night with a clipper system moving south out of Canada. We call these "Alberta Clippers", but usually they don't dump very much snow. (Maybe 1-3 inches) In this case, it looks like the clipper will mainly stay to our north with very little snow, but a few snow showers are possible Saturday afternoon into Saturday night. Right now, this doesn't look to be a a measurable snow for Kentuckiana.

BIG STORM WILL DEVELOP NEXT WEEK

Next major storm system to affect the area will be Monday into Tuesday. Won't bother posting any computer models/maps, as they are all over the place and not in agreement, as expected. Right now most models do swing this storm north, but they are having problems on where the low develops and what will determine the track of the low. If I had to take a poke at this storm system, I would say mainly rain, changing to snow with very minor accumulation, but again this is just a preliminary guess on what is to happen. Computer models will come into better agreement as we near closer to the storm. For now, let's just keep an eye on this storm system and see what it has to offer for the Ohio Valley Region. Much more on this storm in later blog postings...STAY TUNED!