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Weather Discussion

Teske's Tidbits (3/20/08) The One About Seasonal Snow

Happy first day of Spring. More about that in Dave Longley’s blog from earlier today (you get 2 blogs for the price of one today) As our seasonal snow totals here in Syracuse gets close 110” people are starting to ask whether we at normal yet for the season.  The answer is no, but we are close.  I’ve seen 113” listed in a number of places for an average and I think that is an old number.  What we currently are using is 121.1” which is based on 1971-2000 averages.  Here is the monthly breakdown:

 

October                       0.5”

November                    11.1”

December                    28.6”

January                        33.2”

February                      24.0”

March                          18.8”

April                             4.8”

May                             0.1”

 

As a side note, that .1” average for May is based on just 3 snowfalls: May 17 1973 1.2”, May 9, 1977 1.0” and the infamous Mother’s Day 1996 snow when 2.1” fell. When you average that over 30 years you come up with .1”

 

Anyhow, the seasonal snow total jumped from 113” to 121” because when the new 30 year averages were figured earlier this decade the National Weather Service dropped all the winters in the 1960s.  6 out of those 10 years were below 100” and none were above 125”  In their place were the 1990 which were very productive for snow. Four of the top ten snowiest winters in Syracuse history came in the 1990s thus the 8 inch jump in our average.

 

The way things are going this decade, that average may go higher the next time it is figured after the winter of 2010-11. An additional 3 winters since 2000 have cracked the top ten. Using the numbers from 1981-82 through last winter we would have a seasonal snowfall of 126.8”

 

The Lake Effect Challenge for the Leukemia and Lymphoma Society officially went above $30 today.

 

And in a totally unrelated story I just picked Kansas to beat Memphis in my NCAA pool.

Published Thursday, March 20, 2008 11:04 AM by Jim Teske

Comments

 

RICH said:

Dave or Jim,  How do they measure the snow "officially" when the wind is blowing 30 MPH+  ?   I've kept a total of snow fall for over 10 years here in southern Oneida county, and sometimes it is very difficult to come up with an accurate measurement.  I own a Davis "vantage pro 2" weather station, and as an add on you can install a heater for the rain gauge to measure liquid equivalent of snow.  Is this a practice used "officially"  ?
March 20, 2008 10:34 AM
 

Jim Teske said:

Rich,

Here is the 'official' word from the National Weather Service:

Report snow depth to the nearest whole inch, rounding up when one-half inch increments are reached (example 0.4 inches gets reported as a trace (T), 3.5 inches gets reported as 4 inches). Frequently, in hilly or mountainous terrain, you will be faced with the situation where no snow is observed on south-facing slopes while snow, possibly deep, remains in shaded or north-facing areas. Under these circumstances, you should use good judgement to visually average and then measure snow depths in exposed areas within several hundred yards surrounding the weather station.

For example, if half the exposed ground is bare and half is covered with six inches of snow, the snow depth should be entered as the average of the two readings, or three inches. When in your judgement, less than 50 percent of the exposed ground is covered by snow, even though the covered areas have a significant depth, the snow depth should be recorded as a trace (T). When no snow or ice is on the ground in exposed areas (snow may be present in surrounding forested or otherwise protected areas), record a "0".

This is actually part of longer 'guideline' issued by the NWS:

http://www.nws.noaa.gov/om/coop/snowguid.htm

Jim
March 20, 2008 8:23 PM
 

SteveH (Tully) said:

Unbelieveable!  In Tully we have probably 5" of new snow on the ground from the LES last night.  Driving into Syracuse...nothing!  What a difference a few miles can make!
March 21, 2008 7:37 AM
 

RICH said:

Jim,   Thanks for the info !  You guys are the best !
March 21, 2008 10:09 AM
 

Rico said:

Dave - When I was a kid in the 1970s, it seemed like we got as much total snow as nowadays, but the snow cover was more consistent. Seemed like the ground was covered from Christmas to St Patty's Day. Lately, we get dumped on, and it's gone within a week. Is it just my perception, or do we now average fewer days with snow cover?
March 21, 2008 2:12 PM
 

Rico said:

Sorry Jim - For some reason, I have "Dave" on the brain. Could be a symptom of a much larger problem!
March 21, 2008 2:15 PM
 

Jim Teske said:

Rico,

Don't worry. If I had a nickel for every time someone called me Dave.....

Anyhow, I did a quick run of some numbers about snow cover here in Syracuse.  Since the start of the winter we've had 69 days with at least 1" of snow on the ground. The average this decade so far is about 81 days.  I went back and took an average for all of the 1970 winters and that came out to 100 days ,on average, with at least 1 inch of snow.  So it seems you are not imagining things. The remarkable thing is we've had a very snowy decade so far but the snow cover is around about 3 weeks less than back in the 70s.

Jim
March 21, 2008 7:49 PM
 

Rico said:

Thanks Jim. That's quite a remarkable stat.
March 24, 2008 8:59 PM
 

wellbutrin said:

March 27, 2008 1:48 PM
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