Record-setting Valentine’s Day snow, how we broke the record

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RECORD BREAKING SNOW

We shattered the record for the most snowfall ever for a Valentine’s Day with over 5” officially  for the city.  The previous record of 3.2” stood since 1970 –  the only other February 14th ever to produce a 3” snow.  Interestingly – this is only the 8th Valentine’s Day with a 1” snowfall.

Snowfall_foreast
5.1″ of snow for the city through 5PM

Snowfall  has topped 50″ for the city and ranks as the 4th snowiest ever on record (50.3″).  Since December 1st 50.2″ has been recorded.   The record for meteorological winter (months of December/January and February) stands at 51″ set in 1981-1982.  The snowiest season ever 58.2″ also came in 1981-82 – that includes the months from October through May.

WHY SO MUCH MORE SNOW?

The storm system looked to be diving into southern Indiana Thursday night with the heaviest band to develop southwest of the city, overnight computer runs took a definitive turn north and left of the original track expanding the 3” snowfall range north.  While moisture wasn’t plentiful ranging from .08” to .20” liquid (a standard 1” to 3”) these clipper storms can overcome the lack of juice with strong lifting from upper level winds.  The same jet stream brought the low pressure system 40 miles north, put the maximum lift of air overhead and took the snow ratio from 12:1 (for every 1” of liquid = 10” of snow) jumped to 20:1 – double the snowfall manufacturing – or getting more bang for the buck.

Dog Days
COLD BLAST TONIGHT
Snow will diminish quickly this evening and with clearing skies and wind shift to the northwest – we will get very cold.  Early Saturday morning wind chill temperatures could dip to -15° to -25° to open the weekend.

Wind Chill forecast
RPM Wind chill forecast Saturday AM

MORE SNOW SATURDAY

The next “clipper” low dives in Saturday night with the potential of more snow with.  This one is not expected to pack the same punch as our Friday storm system but snowfall of up to 3” is possible.  We will firm up the storm track later tonight.

fox futurecast
More snow coming Saturday night

WAITING FOR THE WARM UP

A stronger storm system will bring rain and snow into the state Monday – pushing the high temperature in the city to nearly 40° but a more intense storm Thursday could bring the warmest air since mid-December here.  Yes, rain will accompany the warm up but strong winds could elevate area temperatures well into the 50’s.  More coming up early next week.

Euro Thursday Wx map 2-20-2014
Euro weather map