Storm Arrives – 4 – 8″ Expected

SnowIt started snowing this morning around 4:00am and the storm appears to be intensifying.  There is a Winter Storm Warning in effect until 11:00pm tonight so it will be with us all day.  Remember that a winter storm warning means hazardous winter weather conditions are imminent or highly likely. Significant snow accumulations are occurring or expected. Strong winds are also possible. This will make travel very hazardous or impossible.

Current indications are that we should receive between 4 and 8 inches of snow.  Needless to say the drive home for those working today will be a bit rough.  Please allow yourself extra time and take it slow. 

More Snow on the Way!

Snow on the way!After receiving a few inches of snow in the metro area on Christmas Day (3.6 in Thornton), another round is on the way and it has the potential to be pretty bad.  At 4:56am this morning, the National Weather Service issued a Winter Storm Watch for the entire Front Range. 

It is pretty unusual for them to issue a warning this far in advance unless they are confident it is going to hit and hit pretty hard.  4 – 8 inches are currently predicted with the potential for locally heaver amounts.  With as cold as it has been and is expected to stay for the next few days, this could get ugly.  Please plan your travel accordingly and be safe out there!

A few Christmas snowfall notes, from the National Weather Service: 

It appears that there may be a new daily snowfall for Denver for Christmas Day. The data in the link below extends back to 1900.  The 2.4 inches recorded today at 6 AM will beat the 1.7 inches set in 1912.  After dusting off some old records here at the National Weather Service office we discovered that 6.2 inches of snowfall was recorded on December 25, 1894.   We also found that prior to 1905 snowfall was recorded from 8 PM to 8 PM. From Jan 1905 to May 1999 snowfall data was from midnight to midnight. Since May 1999, snowfall data has been recorded from 6 AM to 6 AM.  The snow in 1894 began around 8 PM on the 24th and ended  around 2 PM on the 25th. The data for December 25, 2007 will show 2.4 inches recorded at 6 AM.  The remainder of the snow that fell today will be reflected on the data for the December 26.  It will be for the period from 6 AM on the 25th to 6 AM on the 26th. So did we have a record or not? It all depends on how you interpret  the data.  No matter how you look at it, Christmas day 2007 will be memorable.  Click here to check the Christmas day statistics  for snowfall from 1900 to 2006.

On a related note…  When you look at the measurements for snowfall that we make here at ThorntonWeather.com, those are typically total accumulations for the day we actually received the snow, up until 9:00pm or so.  The National Weather Service standard of 6:00am to 6:00am measurements is fine but are not what most folks expect.  As mentioned above, the 6:00am measurements from yesterday showed 2.4 inches of snow in Denver but obviously more than that fell throughout the day.  We feel that providing a total measurement for the day the snow actually feel is more in line with what folks expect and think of. 

Christmas Day Snow!

Christmas is here!As the kids wake up early this morning to see what Santa left them, we are seeing a bit of a nasty storm system move across the area.  The National Weather Service has issued a Snow and Blowing Snow Advisory that will remain in effect until 5:00pm Christmas Day.  Forecast models are a bit unclear as to how much snow we can expect – anywhere from one to five inches depending on which models we look at.  The biggest problem will be the wind blowing things around and causing travel issues for those visiting folks on the holiday.  Be sure to be safe and as always, stay tuned to ThorntonWeather.com for the latest.

Current Advisories

Current Forecast

Meteorologist: Colorado drought still possible despite storms

Drought?An interesting article from USA Today today discusses the fact that despite the snow we have recently enjoyed, we can’t rule out drought in 2008.  In part it says:

Despite a series of snowstorms that rescued ski areas in Colorado just before the holidays and built up the below-average snowpack, experimental forecaster Klaus Wolter says there still is a possibility of drought next year.

“My experimental forecast guidance for the late winter season (January-March 2008) continues to show a pervasive tendency for dry conditions over the full domain. Half of Colorado, and most of Arizona and New Mexico appear most likely to experience a dry season, raising the specter of renewed drought in currently drought-free regions,” said Wolter.

In other words, we can’t count on the wet weather to continue.  It is important to note that while the southern and central mountains have had lots of snow, the South Platte River basin, from which the Front Range gets most of its water, is still below normal levels.  To read the full article, click here

Lightning Detector Up and Running

LightningWe are pleased to announce that ThorntonWeather.com’s lightning detector is now up and running!  This new system will allow us (and you) to monitor in real-time approaching storms and to more accurately gauge how severe a storm is and where it is headed.  Of course in the middle of winter there isn’t a lot to see on it but come spring, it will prove to be invaluable.  For more information on the system and how it works, please click here

Lightning over the Colorado MountainsColorado is ranked # 2 in lightning related deaths (1997 – 2006) so the danger this presents to life and property is very significant for us.  It is interesting to note though that Colorado ranks only 31st in the number of cloud to ground strikes over that same period.  This highlights the fact that, quite frankly, folks here in Colorado are ignorant about the dangers lightning presents and they simply do not take proper steps to protect themselves. For this reason, we have created a Lightning Education Center with more information about how you can protect yourself.  Click here to visit it.

Some interesting facts about lightning:

  • – If you can see it or hear it, lightning can hit you. Find shelter now.
  • – Lightning is the number two weather killer in the United States (behind floods).
  • – Lightning kills about 60 people in the U.S. each year and inflicts severe life-long debilitating injuries on at least a 1,000 people a year.
  • – Every 5 seconds between flash and boom is a mile’s distance from you.
  • – Under ideal conditions, lightning’s thunder can be heard 12 miles away.
  • – Lightning is really no wider than a few inches.
  • – “Bolts from the Blue” – These lightning flashes have been documented to travel more than 25 miles away from the thunderstorm cloud.  Clear skies above you are no indication of how dangerous a nearby storm is!

Statistics and Conditions Currently Down – Fixed

NewsUpdated, 12/22/07, 2:15pm – Back up and running!  We have obtained another console, have it all configured, and the site is running as it should.  Thank you to all for your patience. 

Updated, 12/22/07, 3:45am – We have at least managed to get some data up and running thanks to our sister site, ReunionWeather.com. We are currently tapped into their live data so current statistics and the like are now working. The Trends & Statistics and the Climatology reports won’t be updated but everything else should work fine.  Please bear with us while we work through this problem.

12/22/07, 3:00am – Well… What can we say, this definitely fits in the category, “If it ain’t broke, don’t fix it.” Davis Instruments, the manufacturer of our weather station released an updated firmware for our console (the main unit that receives the data from all of the sensors). The update appeared to go just fine but after it was complete, the console was locked up. Resetting it only has yielded a beep and a blank screen.

Unfortunately, it would appear we are down indefinitely. With the holidays here, it may take us a while to get a replacement unit. Forecasts and radar will continue to work as normal.

We may start pulling data from the DIA weather station if we have to. We apologize for the inconvenience but will do our best to get back online ASAP.

Coming Soon – Live Lightning Monitoring!

LightningMrs. Claus was generous enough to give the hubby his Christmas present a few days early – a lightning detector!  These are pretty incredible devices allowing real-time lightning storm monitoring with the ability to detect strikes hundreds of miles away.  More details will be coming after the final installation and calibration is complete.  If you want a sneak peak, click here.  Please bear in mind though that the system setup has not been complete so it isn’t entirely accurate yet. 

Also of note, we are in the process of installing a heater in our rain guage.  This will allow us to provide moisture content measurements for snowfall. 

Weather Outlook – Warm and Sun!

Melting snowmanThings are finally starting to look nice for us.  The recent series of storms is gone for us (and now wreaking havoc on the midwest) and we should be in for a nice week.  Temperatures should be in the mid to upper 40’s with clear and sunny skies all week.  Friday and heading into Saturday though could bring a change.  Current forecast models (below) show a chance for snowfall during that time period but of course this far out it is hard to say for sure.  Check back often for the latest! 

Precipitation Forecast for Saturday, 12/22

The snow is ending and the weekend should be nice.

ThorntonWeather.com recorded 8/10ths of an inch of snow so the system didn’t product much moisture. Lows Friday night will be down into the single digits. Saturday will be sunny and near freezing and Sunday we will finally truly warm up above 40 degrees. That may not last for too long though – long range forecasts show a chance for more snow toward the end of next week!

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