Arctic air for a few days, then a blast of early spring warmth

March 4, 2015 0 Comments

It’s been almost three full months since our last round of 40 degree warmth, but that string may be snapped within the next week as warmer air is expected to finally¬†sweep into the area, helping us push the mercury out of the deep freeze and into the more March-like 30s and possibly even 40s.

An Arctic air mass has settled into the region for the middle of our week, keeping temperatures roughly 25 degrees colder than normal in our area.

An Arctic air mass has settled into the region for the middle of our week, keeping temperatures roughly 25 degrees colder than normal in our area.

It’s an all too familiar sight for us; the jet stream is positioned to our south, Arctic air is planted in our region under a dome of high pressure, and all of the heavy snow in the country is in the mid Mississippi and Ohio Valleys. Here we go again, right? Well, thankfully, this is going to be a shorter stretch of frigid weather for us as the jet stream is expected to shift northward by the weekend, allowing more seasonable air into the Upper Mississippi Valley, meaning 30s instead of teens for highs and lows that won’t even be close to zero.

The jet stream will shift northward this weekend, allowing warmer air in for us.

The jet stream will shift northward this weekend, allowing warmer air in for us.

Aside from the odd disturbance or tow that may graze our area this weekend, producing clouds, a few flurries, and a bit of a breeze, our skies will be generally dry until the tail end of next week.

A ridge aloft looks to build in for the early part of next week, allowing some of the warmest air into the region since early December. It even looks like sunshine will be the rule for a few days, meaning high temperatures may approach 50 degrees.

A ridge aloft looks to build in for the early part of next week, allowing some of the warmest air into the region since early December. It even looks like sunshine will be the rule for a few days, meaning high temperatures may approach 50 degrees.

The last time Rochester reached the 40s was on December 14th and 15th when the highs were 47 degrees. It was a record for the 14th, incidentally. You may recall that those were some murky, but mild days with low clouds, fog, and even a little drizzle and rain. This time around as long as the cold front that is expected to arrive locally next Thursday holds off, there may be enough sun and the snow melts off of most of the landscape, our temperatures may even approach 50. At any rate, this is not necessarily the last of any wintry weather for us because as we all know, snowfall can occur later in March and even in April or early May. With the strange pattern we’ve been experiencing in recent weeks and months, it wouldn’t at all surprise me to see some measurable snow before April.

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