Skip to main content

Rukavina's Winter Outlook 2019-2020

BITTERLY COLD WINTER NOT LIKELY; HOPE FOR SNOW LOVERS.
Cooler temperatures have finally started to bring a whirl of fall feeling to the air and reminds us that the cold season is just around the corner. Like winters past, there can be a wide range of weather conditions that can either make snow lovers rejoice or send people running for the Florida sunshine. Each winter is completely different and subtle changes in the global weather pattern can have varying impacts on our region.
To gain better insight forecasting into the season ahead, looking to similar weather patterns of the past can suggest likelihoods of temperature and precipitation trends. Meteorologists look at monthly data from Dec - Jan - Feb to determine a winter season average and define that period of time as Meteorological Winter. An average winter in the Paducah and surrounding area shows an average temperature of 37 degrees (January being the coldest), average precipitation total of 12.18" and average snowfall of 9.0".
Much of late Spring and Summer were influenced by a weak El Nino weather pattern. The Climate Prediction Center has officially concluded that the El Nino episode has ended and the Pacific Region is no longer on El Nino watch. Conditions (temperature anomalies) in the Eastern Pacific have returned to neutral and this transition has a  55-60% chance of staying that way headed into Spring 2020.

The National Weather Service in Paducah has historical data that covers eight of the past El Nino transitioning to neutral episodes in the past 75 years. This includes the Winter Seasons of 1952-19531958-1959, 1991-1992, 1992-1993, 1994-1995, 2002-2003, 2004-2005 and 2006-2007. I have extracted those winter periods and their corresponding temperature/precipitation records. The results are shown on the two maps above. In a large majority of these episodes, temperatures averaged above normal. Precipitation was less convincing of any trend and resulted in being fairly close to average.
Click to enlarge

TEMPERATURES: In two cases, 1951-1952 & 1991-1992, both winter seasons reached top 10 warmest of record for the Paducah area. In many of the winter cases, the preceding November also registered warmer than average. Alternatively, the following February averaged colder than average. It can be concluded that while the entire winter experience is milder than most, the end of winter is likely to become a little more harsh. The winter cases analyzed are shown in the graph to the left. Blue bars represent the recorded temperatures and the pink line represents the difference from the climate average shown in dark blue.
PRECIPITATION: There is no real identifiable trend when it comes to precipitation for the winter seasons in this case. There are equal chances for a wet/dry average when a weak El Nino episode transitions to neutral moving into the winter season. There were a few trends that were notable when looking closer at individual monthly data. In a majority of the past winter cases, January was the wettest of the Dec-Jan-Feb time period. When emerging into the Spring season, every past case  except one, showed a drier than average March and start to Spring.

SNOWFALL: Snow chances each winter are always of most interest. It's a uniquely polarizing weather type....people either love or hate it! Three of the past winter cases set records as top 10 snowiest winters. 1992-1993, 2002-2003 and 2004-2005 had some big time snow events. While most cases registered below average snowfall for the season, only 1991-1992 measured a trace of snow, and also corresponded with the warmest season in this case. Overall, snow chances are most likely to remain close to average with an increased chance for bigger, single events.

The National Oceanic and Atmospheric Administration will be releasing it's Winter Weather Outlook by mid-October. I will post their outlook for comparison when it is released. Here is a look at what is summarized in the information I provided above. Here's hoping Winter will turn out just how you like it!



Comments

Popular posts from this blog

Planting Zones Heading North

As our global climate changes, so does our planting zones, helping us determine which flowers/shrubs/trees are hardy in specific areas. The Local 6 area has always been split by 2-3 growing zones so placement becomes very important to those in the agricultural community. The image below represents the average over the past 30 years. Climate Central published the following information:  "What kinds of flowers, shrubs and trees you’ll find at your local nursery depends on your climate — how warm it tends to get in summer, and how cold in winter. A plant that’s happy in Wisconsin might be miserable in Alabama, and vice versa. The U.S. Department of Agriculture has formalized these differences into " hardiness zones " — strips of similar climate that run more or less east-to-west (except in the high mountains), where particular plants should do especially well. But as the planet warms under its thickening blanket of greenhouse gases, those zones are shifting northward. Th...

Tri-State Tornado Double Take

Credit: Chris Conley, Spotter  A well-forecast severe weather event unfolded Tuesday night starting in Southeast Missouri then blowing east into Southern Illinois, The Paducah National Weather Service along with local media gave people in Perryville, MO the early alarm that a large tornado was barreling their way. Storm spotter Chris Conley captured power flashes (right) from the violent tornado hitting power lines as the storm traveled from Perryville across the Mississippi River into Rockwood, IL after claiming one man's life on Interstate 55 and injuring 12 in Perryville. Credit: John Humphress, Spotter The supercell thunderstorm parent to this tornado was only getting started. Confirmation of a tornado and a trail of damage was reported in Rockwood, Ava, Elkville, Christopher, Buckner, Enfield and Crossfield, IL. Storm spotter John Humphress captured the wedge tornado (left) that struck Crossville where a man was killed trying to take shelter. Humphress recal...

Round 3 on deck and wrap-up of snow depth thus far

Snow Depth as of December 30, 2012 with additional snow expected New Years Eve night. (Reports from viewers) It is becoming quite clear where the jet stream has set up for the start of winter. People in Southern Illinois and neighboring MO counties along the Mississippi River can barely keep the roads clear while everyone south of the Ohio River is wondering if we'll ever see snow this winter! :) New Year's Eve night is when we are expecting another (although light) snow event across the same areas where you see higher snow depths above. A WINTER WEATHER ADVISORY begins Monday at Noon and continues through Tuesday at 6AM for most of Southern Illinois and SEMO. The latest advisory map is below.  Winter Weather Advisory - Paducah/St. Louis National Weather Service Snow totals are not expected to be significant but with icy snow pack across much of the advisory area, any additional snow/sleet may make for hazardous conditions again for New Year's Eve night and New...