Tuesday, May 14, 2013

Is the Weather Keeping Indians Fans Away?

Yesterday on the morning show, we discussed why the Cleveland Indians attendance, even after their winning streak of late, still ranks at the bottom on MLB in attendance per game.

Answers ranged from northern Ohio's depressed economy, the Indians recent history of mediocrity, the cold spring weather to football being the more popular sport in Cleveland and the surrounding area. While all have merit, the connection between lack luster attendance and the changeable northern Ohio weather is the element that I wanted to investigate further. In the graphic above, I circled the cities that reside in cold climates.

First, I separated the attendance figures into two parts. The first part is home attendance in April and May since 1988. This counts the last 6 years at old Cleveland Municipal Stadium and the first 20 years at Jacobs/Progressive Field. The figures are through May 12th of this year. The second part is the home attendance figures for June and July until the All-Star Break for comparison which is at the end of the post.

First, the April/May attendance. The April/May attendance trend has been overwhelmingly down since 2000.

Note the obvious lower numbers through the lean years of the late 1980s and early 1990s before the new ballpark opened. Note the small jump during the last year of Cleveland Stadium in 1993 and the HUGE surge in attendance when Progressive Field opened in 1994 which continued through the playoff years of the late 1990s. A few spikes in the mid 2000s were unsustainable as 90+ loss seasons started piling up.


Is the cold weather along the Lake Erie  shoreline a MAJOR contributor to the drop in early season attendance?  The average HIGH TEMPERATURES for April and May since 1988 show a dip this year. Yet temps have stayed slightly milder over the last 5 years. Also note the colder springs during the boom years in the late 1990s.

When we superimpose the TOP 10 COLDEST April/May periods over the attendance during that period, we see that huge drops in attendance don't necessarily correlate to colder temperatures.



I often write about how people's perception of the weather is very powerful. Our biases become the driving force in our memory formation and recollection. For example, temperatures might drop or rise significantly only a few days during a month. If these huge changes occur during a big event like a wedding or graduation, the extreme cold or warm days will leave a bigger impression in your mind than regular run-of-the-mill day during the week. That bigger impression will weigh heavier in your assessment of how the weather was over a specific period. When people say that attendance is down because of the cold weather, they don't think of averages, they think of extremes! This is why the TEMPERATURE AVERAGE over a 60 days period might not be the best data to use when comparing it to attendance. Its the COLD extremes that guide people's decisions whether or not to go to a game.

In northern Ohio, a cold day in April would be temperatures at or below 50 (an arbitrary cutoff). Are the number of days at or below 50 this year dramatically different than in year's past? Not really. Again, notice the jump in the late 1990s.



Do colder April days set the stage for below normal attendance? The distribution looks similar to the average high temperature graph earlier

A cold day in May would be temperatures at or below 60 (an arbitrary cutoff). Are the number of days at or below 60 this year dramatically different than in year's past? YES! Temperatures are running WELL ABOVE NORMAL.


The first two weeks of May ranked top 10 warmest in 140+ years of record keeping in Cleveland. The distribution of cold temperature extremes in May seems to be random.

 So what can we conclude from all of these graphs of temperature averages, extremes vs attendance?

You can almost always guarantee that more people will come to games after school lets out and summer weather becomes the rule. Green line is summer attendance; red line is spring attendance. Even during the summer, the trend recently is still down.



While the weather can and does have an effect on the decision of whether or not to attend an Indians game, the drop in attendance can't be solely attributed to the colder temperatures. In the late 1990s when the Indians were winning, we experienced some of our coolest springs (April and May) in 25 years yet people came out to support the Tribe.  Its hard considering how great those days in the 90s were but we can't base current attendance expectations on the late 1990s numbers for several reasons: Cleveland had its first new ballpark in 60 years, the team was winning AND going to the World Series and--though not shown here--the economy was booming!  On top of that, the Browns moved to Baltimore and Cleveland was WITHOUT a football team.

Guess what? The springs were colder than this year! The weather NEVER kept people from the ballpark


Over the last 10+ years, the new park aesthetic has worn off. The team has been dismantled and restructured multiple times. The bottom line is fans nowadays still don't know what to expect. The weather overall isn't the driver of poor attendance that people want to believe. Throw in a few cold days (nothing record setting) on top of the doubt that's festered for over a decade in the minds and hearts of Indians fans you create a huge detractor. 

It will take more than a few weeks of wins to bring even the hardiest of fans to the ballpark.





Monday, May 06, 2013

Canadian Shoreline Visible? Not So Fast

Over the weekend, Jay Reynolds, local Cleveland Astronomer sent me a photo of an optical illusion over Lake Erie. Its called REFRACTION!

While it looks as if we can actually see the Canadian side of the lake, in reality, its over 50 miles away! Why can we see it in this photo?




The light from the Canadian shoreline is refracted (or bent). The rapid change in air density and temperature between the warm air aloft (70s) and cool air over the lake (40s) acts to bend the light down. The wind needs to be calm for this to happen so that the different air layers don't mix too much.  The result is we see that light here in Ohio when under normal circumstances, that light would have been "beamed" into the atmosphere away from our field of view.

Close up of Optical Refraction (Canadian Shoreline): Courtesy: Jay Reynolds


While it looks like the Canadian shoreline is close, its actually a mirage and over 50 miles away!

Another atmospheric phenomena I witnessed late last week was a ring around the sun at noon Friday. What causes this?


The perpetual cloud cover we've seen are cirrus clouds. These are made of ice crystals and don't produce any precipitation. Many of the ice crystals are hexagonal. If the ice crystals are oriented at just the right position, the sunlight is refracted (there's that word again!).



The sunlight is deflected twice inside the ice crystal.

Courtesy: http://en.wikipedia.org/wiki/File:Path_of_rays_in_a_hexagonal_prism.png

As the light interacts with more ice crystals, it will form a ring of light at exactly 22 degrees from the sun or moon. Some of the light is dispersed broken up into its component colors) as it is refracted inside the ice crystal.


Special thanks to the University of Illinois website for the great graphics!

Wednesday, May 01, 2013

US Temperatures: April 2012 vs April 2013



What a difference a year makes! WELL BELOW NORMAL APRIL ACROSS THE US!

   

What I find interesting is that the center of the "colder than average" area has stayed virtually the same since the beginning of the year.

Here are the April temperatures compared to the average across North America

 Once we include MARCH AND APRIL, the map looks virtually identical

 
How about FEBRUARY, MARCH and APRIL? Little change in the map

The entire year from JANUARY through APRIL shows how the center of the cold evolved over the last 4  months

The BIG QUESTION will be whether or not the CORE OF THE COLDER THAN NORMAL AIR breaks down, drifts west or east or expands?  More on this later.....

Monday, April 29, 2013

Temperature Ranks this Spring

Just ran the temperature numbers since March 15th. Where does this year's spring temperatures rank so far? Not very warm as you probably thought...79th out of the 143 years of record keeping in Cleveland.

I also circled the warmest and coldest 3/1 to 4/28 periods on the handy little chart below.



Friday, April 26, 2013

Comparing Spring 2013 to Spring 2012

Last spring's weather was an aberration.

...sure it could happen again but the chances seemed small. I explained the 2012 spring conditions and the drought that followed at The Ohio State Weather Symposium in March. (Power Point is here) A year later, the conditions are very different in many ways across the U.S.  Above normal rainfall, temperatures running well below normal and late season snowfall for starters.

Since the growing season is around the corner, lets compare the temperatures, rainfall and drought indices to this time last year. First the temperatures. After the warmest March on record and a very warm April of 2012, this spring since March first has been anything but warm. Late season snow on the 20th of April with flurries on the 24th have solidified this early spring as a bust for Ohio.
Temps vs Normal for March thru April 22nd
Rainfall last year was becoming scarce. Moist condition in winter were disappearing as evaporation from the early spring warmth was taking its tool on the soil. So far this spring, rain has been plentiful across Ohio while major flooding was a big concern for the upper Mississippi River.


Mississippi River flooding from Iowa to almost St. Louis

The Mississippi River was well above flood stage in St. Louis but no where near the record highs set during the Flood of 1993


The Long Term Palmer Drought Index for the week of April 20th shows three distinct difference compared to 2012 at this time. The first is the southeast where conditions are much improved this year. Second is the drought conditions in the western Plains and out west which are only getting worse. Third is the heavy rain and saturated soil across the corn belt.


Whether or not we see any reprieve from the rain will greatly determine how quickly corn can be planted. Corn is only 2% in the ground while last year, the top corn producing states were already 16% planted. Something to watch!

The thousands of record cold and snowfall records across the U.S. from late March through late April hasn't helped.


Spring tornadoes are way down compared to the seasonal average of 492. In 2012, 588 tornadoes were confirmed. So far this spring, the number is more than half of last year's with 226 as of April 25th. 

So what does early May look like? Will we see any warmth? Will we see bouts of cooler periods? While "cooler" for late May means something different than early April, the overall outlook for the next two weeks isn't great. Both long term projections shows the temperatures averaging below average (average high is lower 60s for earl May) which would translate to 40s and 50s.

Map on left is thru May 12th--Map on right is for May 4th--COOL!
What a difference a year makes!


Monday, April 22, 2013

What is Your Definition of a HOT SUMMER?

One of the many things I have learned over the years presenting the weather on television is the strength of the public's perception on how the weather works. The weather data may say one thing about a specific weather trend or event but the power of our senses creates and amplifies inherent biases hardwired in our brains and overwhelms any objective analysis.

How many times have we described some piece of weather history with numbers and they just didn't sit well with you because you perceived weather to be wildly different? We all have some degree of what is called cognitive dissonance--that is the feeling of discomfort (frustration, anger, embarrassment) when simultaneously holding two or more conflicting ideas or beliefs.

Rather than make you feel uneasy about listing scary numbers of summer's by (believe me, I'll have plenty of time for this in later posts) , my QUESTION OF THE DAY is to survey your PERCEPTIONS of the weather.

The question is WHAT IS YOUR DEFINITION OF A HOT SUMMER? WHAT IS YOUR DEFINITION OF A COOL SUMMER?

Saturday, April 20, 2013

Snow in April? Has this Happened Before?


Its April 20th and we had snow showers earlier in the morning. I could hear the collective "Where is spring? Its not supposed to snow this late into April!" In most years, you and the rest of northern Ohio would be correct. 


Cleveland Heights
Chesterland
South Euclid
How many times have we seen only a tenth (0.1") of snow AFTER APRIL 20TH? Believe it or not, its happened 24 TIMES SINCE 1895 here in Cleveland.

Here are the years and the days this has occurred. The first numbers are the temps leading up to the day of snow. Notice that this year is the first time we've had an 80+ day followed by measurable snow  36 hours AFTER the 80+ degree high.

2013 - 84, 71, 44 (0.1" - 20th)
2005 - 12.4" over 3 days (23-25th)  
2004 - 70, 62, 49 (0.1" snow late on 27th)
1996 - 60, 73, 58 (0.1" overnight)1993 - 73, 40 (0.1" on 21st)
1978 - 50, 42 (0.2" on 21st)
1971 - 60, 52 (0.1" overnight on 21st)
1968 - 51, 29 (0.2" on 25th)

1967 - 49, 39 (0.1" on 24th)
1963 - 65, 59 (0.3" overnight on 30th)
1953 - 34, 57 over 2 days (1.6" & 0.1" on 20-21st)
1934 - 42 (0.7" on 21st)
1922 - 39 (0.2" on 21st)1920 - 59, 48 (0.1" on 28th)
1908 - 41 (1.4" on 30th)
1907 - 59, 42 (0.2" on 26th)

1906 - 41 (0.2" on 23rd)
1904 - 31 (0.3" on 20th)

1903 - 41 (0.1" on 22nd)
1901 - 35, 40 (2.8" & 1.8" on 20-21st)




Incidentally, how often have we seen measurable snowfall in May? 11 TIMES



1902 - 0.6" on 10th
1906 - 0.1" on 9th
1907 - 0.5" & 0.2" on 4th & 10th
1908 - 0.1" on 2nd
1909 - 0.1" & 0.3" on 1st & 2nd
1963 - 0.1" on 1st
1973 - 0.6" on 4th
1974 - 2.0" & 0.1" on 6th & 7th


Friday, April 19, 2013

Thursday, April 18, 2013

Today/Tonight's Severe Weather Threat

UPDATES ON FACEBOOK AND
TWITTER THROUGHOUT THE DAY

The radar looks fairly uniform this morning. Well defined line of rain and storms in the middle of the country. .
A WATCH might have to be issued for Indiana later this morning. No showers/storms on radar over northern Ohio as of 9AM.




For Ohio, we will see three elements evolve today before the storms arrive: First the strong winds. The pressure gradient is strong along the front as is the temperature gradient. Temps early this morning were in the upper 70s in St. Louis; 45 in Kansas City. The pressure gradient and the low level winds will translate down to the surface reaching 40-45 late today as we reach prime heating. Dew points are also climbing.



The second element is the temperatures. In April, we need a strong southerly wind to reach 80. That should not be a problem later. the only inhibiting factor will be some cloud cover. History tells us that the winds should mix out the cloud deck. Expect a fair amount of sunshine. Morning temperatures ahead of the front already in the 70s!



The third component (the toughest to nail down) is the energy ahead of the main front. Will this energy kick up some spotty storms later today/evening? Once again, history dictates that the chances are pretty good. The HRRR model shows the random, pre-frontal storms very well. The Storm Prediction Center has western Ohio in a slight risk later today for severe storms




Then we await the arrival of the winds ahead of the front. Storms will pass through the area at the right time of day (late evening/overnight) so as to diminish the severe weather threat. A few storms will reach severe limits tonight but it should not be widespread.

Expect rain early Friday, temps will remain in the 60s early. The models continue to push this front through FAST. So look for the rain to move into Pennsylvania by noon Friday. Temperatures will drop quickly into the lower 50s by afternoon. Some sunny breaks behind the front.






Tuesday, April 16, 2013

Just How BIG have this April's "Ups and Downs" been so far?...

Cleveland Skyline
The dramatic "ups and downs" in recent weeks have caused many to draw the conclusion that this pattern must be something very unique even for spring. Andre has a great blog on his website about how our memory is very selective. We tend to put more weight on recent events or events that are important to us without taking a look at the "big picture" and the data. I've also written extensively about our cognitive biases in how they shape how we perceive the weather (behavioral meteorology) HERE and the human condition pertaining to weather HERE. Our cognitive dissonance couldn't be more apparent in how we view this recent 14 days weather pattern, i.e. One day at 80 then 30s with drizzle and sleet, etc

So how does this April so far compare to the last few years comparing day-to-day HIGH temperatures drops and rises compared to the normal high of the day?  Here are the largest "drops and rises" compared to the daily normal over the 25 Aprils through the first two weeks. For example, if the high was 80 (normal for that date was 60 for a +20 degree difference) and the next day, the high was 45 (normal was 61 for a -16 degree difference), the final difference over the 24 hour period was -36 degrees! These are the numbers I used in the graph below.

Don't be intimidated by this chart. There a lot of numbers here. First, I BOLDFACED the instances of day-to-day positive change (WARMER) of more than 10 degrees. Second, I underlined instances where the temperature change was more than 10 degrees for back-to-back days.  Frankly, I couldn't figure out a good way of illustrating this so the raw data will have to do for now.




Here are some of my notable conclusions:


Recently, 2011 had some VERY big "ups and downs". During one stretch in 2011, temperatures dropped 31 degrees in 24 hours then rose 13 degrees the following day!

April 2010 had an instance where temperatures dropped 20 degrees and then rose 22 degrees the following day.

April 2007 had a 12 degree jump then a 17 degree drop followed by ANOTHER 35 degree drop.

April 1995 from a Sunday to Friday saw a 20 degree jump, a 17 degree drop, a 12 degree drop, 22 degree jump then finally a 19 degree drop!

===========================================


The bottom line is that historically, April is known for wild swings in temperature and weather. We just don't want to believe it because what's happening NOW is usually perceived as more significant than what happened in the past.