9/21/2023 0 Comments Snowfall totals in texasDuring the late January through February time frame the meridional pattern became most pronounced, resulting in the coldest conditions in decades for much of the Northeast.įor parts of the Lower Great Lakes and New England the time frame from the last week of January through all of February produced some of the greatest total snowfall and coldest temperatures on record, many of which go back well over 100 years. However, winter really came in with a vengeance by mid to late January. The winter pattern relaxed somewhat during December and early January. Amazingly, this was a drop of some -99☏ (55☌) between November 1st, when the temperature peaked at 72☏ (22.2☌) tying the record for the warmest November temperature ever observed in the city to November 12th when the monthly record low occurred.”įigure 5: Snowfall totals (left) and a view of the storm (right) that hammered Buffalo in November 2014. "In Casper, Wyoming the temperature fell to -27☏ (-32.8☌) on November 12th, its coldest on record for November. (and 16th coldest on record) thanks to an exceptional arctic outbreak in the middle of the month," says Burt. “It was the coldest November since 2000 for the contiguous U.S. This was put into perspective in a great blog by Chris Burt, Weather Channel Historian, when he discussed the change in temperature in Cheyenne, Wyoming from early to mid- November. Look at how that ridge built up over the west coast of North America.įigure 3: 500mb composite heights for a) November 1-7 and b) November 8-20 showing the drastic change in the upper air pattern that took place in the second week in November 2014.Īs a result, surface temperatures were much colder than normal for that time of the year across the U.S. Figure 3 shows the 500mb pattern in the first week of November and the resulting pattern for the 10 days afterwards. That system had a significant impact on the weather pattern downstream across North America as it sat over the Bering Sea, effectively pumping up a ridge over the West Coast of North America, which in turn produced a very deep trough over the rest of the continent. Typhoon Nuri, which reached the level of a category 5 typhoon in the tropical Pacific, moved into the higher latitudes of the North Pacific in early November, resulting in one of the worst storms on record to move through the Bering Sea. This was due in part, of all things, a tropical weather system. was hit with a round of very cold temperatures and in one particular part of the nation, very heavy snowfall. American height anomaly (2a) and surface temperature anomaly (2b) for the winter season as defined by the months of Dec-Jan-Feb 2014-15.Įven before winter officially began however, much of the U.S. So if you’re hoping for another snow day this winter, it’s safe to say that the odds aren’t in our favor.Ĭopyright 2021 by KSAT - All rights reserved.Figure 2: Composite 500mb N. If just one of those elements is missing, snow won’t happen. However, 1985 happened to be a La Nina year and we are also currently in a moderate La Nina.Īt the end of the day, it takes many factors to line up for San Antonio to see measurable snowfall. La Nina typically enhances snowfall across the northern United States and not Texas. What about any correlations to El Nino or La Nina? A quick check shows there may be little correlation for us. Snowfall in South Texas tends to be erratic, as shown by the graph. As for a significant snowfall (2-4 inches), that only occurs every 10 years or so. If you want to average it all out, according to the National Weather Service in New Braunfels, San Antonio receives measurable snowfall every three to four years. Since 1985, we’ve only seen 3.9 inches of snow in San Antonio and nearly half of that came in a 2017 snowfall. In fact, just 10 days prior to the 13.5 inches of snow, we received 2.4 inches of snow in early 1985.Īnother interesting fact is that from 1988 to 2003, San Antonio was snow-free (not counting trace amounts). However, you might be surprised to know that we had four other events during that decade that provided measurable snow. Obviously, we know that the bulk of that came in San Antonio’s famous 1985 snowstorm. The first thing that likely caught your eye was the decade of the 1980s. Snowfall per decade in San Antonio (Copyright 2020 by KSAT - All rights reserved.)
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