Santa Claus begins his whirlwind trip around the globe tonight to deliver toys to all the good little boys and girls! For more than 50 years the North American Aerospace Defense Command (NORAD) has tracked Kris Kringle on Christmas Eve and helped to ensure he completes his journey safely.
ThorntonWeather.com is pleased to be able to provide live Santa tracking from NORAD right here on our site!
For many the holiday season isn’t complete without a chill in the air and snow on the ground. Here in Denver we historically enjoy a better chance of experiencing the proverbial white Christmas than many places in the nation.
How the Mile High City fares in experiencing a white Christmas does depend on your definition of one. If it means having actual snowfall on Christmas Day the chances aren’t that good. However if simply having snow on the ground suffices, the chances improve considerably.
The wintry weather that moved through Colorado over the past 48 hours provided some relief to the drought-stricken state. NASA satellites captured the snowy landscape of the Centennial State as the storm moved off toward the Midwest.
The system covered much of the higher elevations of the Rocky Mountain region in snowfall. For Colorado this brought snow to the high country much to the delight of ski resorts and skiers.
In Denver the storm brought very cold temperatures but not as much snow as was hoped. Officially the Mile High City recorded 1.7 inches bringing the seasonal total to 9.8 inches, well below normal.
The image from NASA’s Aqua satellite was taken on Wednesday, December 19 as the storm began to move out onto the plains. The snow covered mountains west of Denver are clearly seen while cloud covers the lower elevations.
Satellite imagery shows the pre-Christmas snowstorm that blanketed Colorado. Click the image for a larger view. (NASA)
December 16 to December 22: This Week in Denver Weather History
Many notable high wind and heavy snow events appear on our look back at this week in Denver weather history. Perhaps the one most residents will remember is the 2006 pre-Christmas blizzard which buried Denver under a blanket of white that lasted until February.
From the National Weather Service:
15-16
In 1964…high winds raked metro Denver…causing considerable damage. Wind gusts to 81 mph were recorded at Rocky Flats northwest of Denver…94 mph at Jefferson County Airport near Broomfield…48 mph in downtown Boulder…and 70 mph in Littleton. West wind gusts to 67 mph were recorded at Stapleton International Airport. A man working on construction in downtown Denver died from injuries after being struck by a 5-foot by 8-foot section of plank runway blown by the strong winds. Several people were blown down by the strong winds or hit by flying objects. Buildings… Roads…trees…and power equipment were damaged. Roads were closed east of Denver due to blowing dust.
In 1981…wind gusts to 60 mph were common in the foothills northwest of Denver. West wind gusts to 47 mph were recorded at Stapleton International Airport where the visibility was briefly reduced to 3 miles in blowing dust.
In 1996…strong pre-frontal winds developed in the foothills of Boulder County ahead of an arctic cold front that moved into northeastern Colorado late on the morning of the 16th. Wind gusts of 70 to 75 mph were clocked at Table Mesa in southwest Boulder.
16
In 1912…northwest winds were sustained to 44 mph with an extreme velocity of 45 mph.
In 1921…north winds were sustained to 46 mph with gusts to 50 mph behind a vigorous cold front. Only a trace of snow fell.
In 1954…a vigorous cold front produced sustained north winds to 45 mph with gusts as high 54 mph. Visibility was reduced to 1 mile in blowing dust at Stapleton Airport.
In 1955…sustained west winds to 44 mph with gusts as high as 58 mph were recorded at Stapleton Airport.
In 1994…a wind gust to 108 mph was recorded atop Squaw Mountain west of Denver with a gust to 92 mph in Rollinsville southwest of Boulder. West winds gusted to 48 mph at Stapleton International Airport.
In 1996…a vigorous arctic cold front moved across metro Denver. Heavy snow and strong winds accompanied the front as near whiteout conditions in snow and blowing snow developed suddenly. Northerly winds gusted from 40 to 60 mph behind the front. Dozens of accidents occurred as roads and highways quickly turned to a glaze of ice. Snowfall amounts ranged from 4 to 6 inches across metro Denver and in the foothills. The exception was at Eldorado Springs south of Boulder where 8 inches of new snow were measured. Snowfall totaled only 1.8 inches at the site of the former Stapleton International Airport. Officially…this was the only measurable snow of the month in Denver. At Denver International Airport…north winds gusted to 34 mph.
In 1999…another brief round of high winds developed in and near the foothills of Boulder County. Peak wind gusts included 83 mph at the National Center for Atmospheric Research near Boulder and 74 mph atop Niwot Ridge and at the national wind technology center on Rocky Flats south of Boulder. West winds gusted to only 33 mph at Denver International Airport where the temperature warmed to a high of 54 degrees.
In 2000…high winds in the mountains spread into the foothills west of Denver. Winds gusted to 87 mph at Georgetown Lake and at the National Center for Atmospheric Research in Boulder. Winds gusted to 72 mph at the national wind technology center south of Boulder.
16-17
In 1908…heavy snowfall totaled 7.9 inches in downtown Denver where north winds were sustained to 20 mph on the 17th. Temperatures were in the teens and 20’s.
In 1939…low temperatures of 49 degrees on the 16th and 43 degrees on the 17th were record high minimums for the dates. High temperatures of 65 on the 16th and 72 on the 17th were not records.
In 1980…Chinook winds blew through the night in Boulder with a peak reported gust to 75 mph. Northwest winds gusted to 30 mph at Stapleton International Airport on the 17th. The strong Chinook winds warmed temperatures to record daily highs of 70 degrees on the 16th and 73 degrees on the 17th.
17
In 2000…high winds gusting from 60 to 74 mph howled across the northeast plains of Colorado. In Parker where winds gusted to 60 mph…a 20-foot by 40-foot piece of roof was ripped from a building. West winds gusted to 53 mph at Denver International Airport. This was the highest wind gust of the month at the airport. An intense…but very localized wind gust to 112 mph was measured near Georgetown lake in the foothills west of Denver.
Weather Geek Stuff is a great place to shop for gifts for weather enthusiasts, weather geeks and weather lovers.
Not everyone gets excited about blizzards, tornadoes, hurricanes and other types of extreme weather but many folks out there are passionate about Mother Nature. Weather Geek Stuff is an online shop just for those whose hearts race with the thrill of severe weather and they are offering special deals on Black Friday and through the first part of the holiday season.
From now through December 10th Weather Geek Stuff is offering 15% off all orders over $50.00. If you have a weather geek, weather diva or storm chaser on your shopping list – or maybe you just want to get yourself a gift – now is the time to buy. Simply enter the coupon code SHOPUP at checkout to receive your discount.
Weather Geek Stuff is an online store that provides a host of clothing items and novelties just for weather buffs. From the store’s custom ‘Weather Geek’ and ‘Weather Diva’ logoed merchandise to items imprinted with amusing weather warnings signs as well as Skywarn storm spotter logos, there is something there sure to please any weather lover.
Weather Geek Stuff’s merchandise was shown on the Weather Channel as a recommended gift so you know the quality is good. Stu Ostro, Weather Channel’s Senior Director of Weather Communications even sports a ‘Weather Geek’ t-shirt on his Facebook page and Twitter profile.
Kids and dogs aren’t left out of the weather fun either. There is a wide variety of clothing items sized just right for the little ones from babies to bigger kids. Canine companions as well can get shirts and bowls emblazoned with a weather-related logo.
The selection goes far beyond clothing too. Water bottles, clocks, mugs, bags and other novelties are part of the store’s offerings. For the tech types, cases for iPhones and iPads are available. New products this season include flasks, drink mixers, mouse pads, cases for the Samsung Galaxy S3 and much more.
Weather Geek Stuff is owned and operated by the same folks that run ThorntonWeather.com. We provide ThorntonWeather.com as a no-cost service to the community and use the minimal amount of money made from Weather Geek Stuff to support the costs of running this website and the associated equipment. So remember, if you have a weather buff on your shopping list, by buying from Weather Geek Stuff you are supporting ThorntonWeather.com!
A stunning nighttime view of North and South America, the west cost of Africa and Europe. (NASA) Click the image for a larger view.
The ‘blue marble’ images captured by NASA satellites are extremely popular and showcase the Earth without borders in its natural beauty. New images dubbed ‘black marble’ show our planet at night with the lights of population dotting the landscape.
The Suomi National Polar-orbiting Partnership (Suomi NPP) satellite captured the images in April and October and were then stitched together to provide a cohesive, single view. NASA created a matching video that shows the planet rotating as the nighttime lights rotate on it.
The imagery of the United States shows how much more densely populated the eastern half of the nation is versus the western half. A look at Colorado shows the main population centers of the Colorado Front Range along I-25 and the many smaller communities that dot the plains and mountains.
See below for some of the stunning views and to view an animation of the Earth rotating.
The night view of the contiguous United States clearly shows where the major population centers are and highlights the more sparsely populated west. (NASA) Click the image for a larger view.Nighttime satellite imagery of Colorado clearly shows the population centers of the Front Range. (NASA) Click the image for a larger view.A zoomed in view of the Colorado Front Range and the area from Colorado Springs, through Denver and on to Cheyenne, WY. (NASA)
From NASA:
The night side of our planet twinkles with light, and the first thing to stand out is the cities. “Nothing tells us more about the spread of humans across the Earth than city lights,” asserts Chris Elvidge, a NOAA scientist who has studied them for 20 years.
This new global view and animation of Earth’s city lights is a composite assembled from data acquired by the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. The data was acquired over nine days in April 2012 and thirteen days in October 2012. It took satellite 312 orbits and 2.5 terabytes of data to get a clear shot of every parcel of Earth’s land surface and islands. This new data was then mapped over existing Blue Marble imagery to provide a realistic view of the planet.
To view the video of the night lights, click on the link below the image or visit our YouTube page. To view many more still images and maps of night lights, visit our new feature page: Earth at Night 2012.
The view was made possible by the “day-night band” of Suomi NPP’s Visible Infrared Imaging Radiometer Suite. VIIRS detects light in a range of wavelengths from green to near-infrared and uses “smart” light sensors to observe dim signals such as city lights, auroras, wildfires, and reflected moonlight. This low-light sensor can distinguish night lights tens to hundreds of times better than previous satellites.
Named for meteorology pioneer Verner Suomi, the polar-orbiting satellite flies over any given point on Earth’s surface twice each day at roughly 1:30 a.m. and 1:30 p.m. Suomi NPP orbits 824 kilometers (512 miles) above the surface as it circles the planet 14 times a day. Data is sent once per orbit to a ground station in Svalbard, Norway, and continuously to local direct broadcast users around the world. The mission is managed by NASA with operational support from NOAA and its Joint Polar Satellite System, which manages the satellite’s ground system.
NASA Earth Observatory image and animation by Robert Simmon, using Suomi NPP VIIRS data provided courtesy of Chris Elvidge (NOAA National Geophysical Data Center). Suomi NPP is the result of a partnership between NASA, NOAA, and the Department of Defense. Caption by Mike Carlowicz.
December 9 to December 15: This Week in Denver Weather History
Heavy snow and damaging wind are at the forefront of our look back at this week in Denver weather history.
From the National Weather Service:
2-17
In 1939…more than 2 weeks of unseasonably warm weather made the month the 3rd warmest on record. Seven daily temperature records were set…including the all-time record high temperature for the month of 79 degrees on the 5th. Daytime highs were balmy with 14 days in the 60’s and 70’s. Low temperatures dipped to freezing or below on only 5 days. The period was dry with only a trace of snow on the 12th.
3-15
In 1972…a protracted cold spell held an icy grip on metro Denver when maximum temperatures never reached above freezing for 10 consecutive days from the 3rd through the 12th and minimum temperatures dipped below zero on eleven consecutive days from the 5th through the 15th. Daily low temperature records were set with 15 degrees below zero on the 5th…17 degrees below zero on the 6th… And 18 degrees below zero on the 10th. Daily record low maximum readings were set with 3 degrees on the 6th and 6 degrees on the 9th. The very cold temperatures were caused by 3 to 5 inches of snow cover and a Canadian air mass.
7-9
In 1919…an apparent arctic cold front brought extreme cold and light snow to the city. Snowfall totaled only 2.5 inches on the 7th and 8th. Temperatures dipped to lows of 14 degrees below zero on the 8th and to 20 degrees below zero on the 9th. Both readings were daily record minimums. High temperatures were only 4 degrees on the 8th and 7 degrees on the 9th.
In 1923…a major storm dumped 13.5 inches of snowfall on downtown Denver. The apparent post-frontal snowfall started during the late afternoon of the 7th and continued through the evening of the 9th. Temperatures dipped from a high of 66 degrees on the 7th with west winds sustained to 35 mph to a low of only 14 degrees on the 9th…with north winds sustained to 25 mph.
8-9
In 1943…4.5 inches of snow fell in downtown Denver. This was the only measurable snow of the month. North winds were sustained to 26 mph on the 8th.
In 2003…snowfall totaled 3 to 6 inches across metro Denver. Snowfall was heavier in and near the foothills with 8.0 inches measured in Boulder and 10 miles southwest of Sedalia. Snowfall was 3.9 inches at the site of the former Stapleton International Airport. Most of the snow fell on the 8th…as the snow ended shortly after midnight. North winds gusted to 29 mph at Denver International Airport.
In 2008…an upslope snowstorm produced heavy snow in and near the foothills of Boulder…Jefferson and Douglas counties… And along the palmer divide south of Denver. Storm totals in the foothills ranged from 8 to 15 inches. In Boulder and in areas west and south of Denver…storm totals ranged from 6 to 13 inches. The snowfall measurement at Denver International Airport was 3.9 inches.
December 2 to December 8: This Week in Denver Weather History
This week has historically been an extremely eventful one in Denver with many notable weather events, most of which are snow or wind related. The most significant event occurred 99 years ago when the city received its biggest snowstorm on record – an astonishing 45.7 inches. Details on that event and many others are below.
From the National Weather Service:
30-2
In 1975…very strong Chinook winds up to 100 mph caused damage to homes…aircraft…aircraft hangars…mobile homes… Cars…and power lines along the eastern foothills. Strong northwest winds gusted to 39 mph at Stapleton International Airport on both the 30th and the 1st.
1-2
In 1933…apparent post-frontal heavy snowfall totaled 8.0 inches across downtown Denver. North winds were sustained to 17 mph with an extreme velocity to 18 mph on the 1st.
In 1981 strong winds gusted to over 70 mph along the foothills. A peak gust to 100 mph was recorded at Wondervu. A gust to 94 mph was recorded just west of Boulder. Roofs on houses were damaged in the Evergreen area…and some mobile homes also were damaged. At Stapleton International Airport…northwest winds gusted 44 mph on the 1st and 37 mph on the 2nd.
1-5
In 1913…the 1st marked the start of the heaviest 5-day total snowfall in the city’s history. During this period snowfall totaled 45.7 inches. Starting on the 1st…snow fell intermittently for 3 days and accumulated a little over 8 inches. On the 4th and 5th…an additional 37.4 inches of snow fell. At Georgetown in the foothills west of Denver even more snow fell…86 inches over the 5 days with the most…63 inches…on the 4th. In Colorado…snowfall was heavy along the eastern slopes of the mountains from the palmer divide north. High winds during the storm caused heavy drifting…which blocked all transportation. Snow cover of an inch or more from the storm persisted for 60 consecutive days from the 1st through January 29…1914. Additional snowfall in December and January prolonged the number of days. This is the third longest period of snow cover on record in the city.
2
In 1893…northwest winds were sustained to 42 mph with gusts to 46 mph. Snowfall was only 1.4 inches in the city.
In 1895…0.01 inch of melted snow from 0.7 inch of snowfall was the only measurable precipitation of the month in downtown Denver…ranking the month the 3rd driest December on record.
In 1899…post-frontal northeast winds sustained to 44 mph with gusts to 59 mph caused the temperature to plunge from a high of 55 degrees to a low of 15 degrees. Snowfall was only 1.0 inch.
In 1902…apparent post-frontal northwest winds were sustained to 45 mph with gusts to 53 mph. A trace of snow fell.
In 1905…only a trace of snow fell in downtown Denver. This was the only snow and precipitation for the month… Ranking the month the second driest and the second least snowiest December on record.
In 1921…snowfall was 5.5 inches in downtown Denver. Northwest winds were sustained to 24 mph with an extreme velocity of 25 mph.
In 1951…a vigorous pacific cold front produced a northwest wind gust to 51 mph at Stapleton Airport where brief blowing dust was observed.
In 1957…a strong pacific cold front produced northwest wind gusts to 54 mph at Stapleton Airport where the surface visibility was briefly reduced to 1 1/2 miles in blowing dust.
In 1977…high winds in Boulder lifted a warehouse from its foundation and ripped it apart. Wind gusts from 60 to 103 mph toppled and injured a man while walking. Winds were clocked to 104 mph at Nederland…100 mph at Morrison…and 62 mph at Rocky Flats. Northwest winds gusted to 41 mph at Stapleton International Airport.
In 1996…for the second day in a row high winds ripped the Front Range foothills. Winds gusted to 81 mph in Golden Gate Canyon. West-northwest winds gusted to 37 mph at Denver International Airport.
Thus far the snow season has been far less than kind to Colorado. Snow totals are running well below normal from the plains to the Rockies.
December may bring some hope as the month is our third snowiest. The month brings with it the official start to winter and the month usually brings with it our first real taste of Arctic temperatures.
Precipitation can be hit or miss with monster snowstorms possible but we have also seen starkly dry years.
Current long range forecasts indicate we may very well see continued dry and warm weather.
The two key weather related words to describe the Denver area’s November 2012 of ‘dry’ and ‘warm’ hardly come as a surprise. The month saw unseasonably mild temperatures and little in the way of precipitation despite it historically being our second snowiest month.
Above normal temperatures dominated the month from the start with eight out of the first nine days recording readings warmer than average. Colder weather then arrived and brought Thornton and the Mile High City its first snowfall of the season. The cooler temperatures did not last long and warmer weather returned for the majority of the balance of November.
Thornton saw an overall average temperature of 41.1 degrees. Highs averaged 57.3 degrees down to an average low of 26.9 degrees.
Denver’s official average temperature of 43.5 degrees was slightly warmer than Thornton’s. While mild, it was not warm enough to make it into the list of ‘top 10’ warmest Novembers on record.
Here in Thornton our warmest temperature of the month occurred on the 7th when the mercury climbed to 74.6 degrees. The coldest morning occurred on Veterans Day (November 11) when temperatures dropped to a chilly 15.0 degrees.
Precipitation was lacking throughout the month as Thornton recorded a scant 0.37 inch in the bucket. Denver officially recorded less at 0.27 inches. Both measurements were below the average of 0.61 inch for November.
The season’s first snowfall occurred on the 10th of the month with 1.5 inches being recorded in Thornton. Out at DIA they recorded slightly more at 1.7 inches. On average Denver sees 8.7 inches of snow during November so we were well below average.
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2012...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2012
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 80 11/08/2006
LOW -18 11/29/1877
HIGHEST 77 11/07 67 10 69 11/24
LOWEST 13 11/11 -3 16 10 11/02
11/03
AVG. MAXIMUM 58.4 52.1 6.3 54.1
AVG. MINIMUM 28.5 24.5 4.0 24.8
MEAN 43.5 38.3 5.2 39.5
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX = .01 1 4.7 -3.7 2
DAYS >= .10 1 1.6 -0.6 2
DAYS >= .50 0 0.0 0.0 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.27 11/10 TO 11/10 11/01 TO 11/02
SNOWFALL (INCHES)
RECORDS
TOTAL 42.6 1946
TOTALS 1.7 8.7
DEGREE_DAYS
HEATING TOTAL 638 801 -163 757
SINCE 7/1 1195 1382 -187 1252
COOLING TOTAL 0 0 0 0
SINCE 1/1 1236 769 467 964
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/07
LATEST 05/05
...................................................
WIND (MPH)
AVERAGE WIND SPEED 8.4
RESULTANT WIND SPEED/DIRECTION 4/205
HIGHEST WIND SPEED/DIRECTION 29/220 DATE 11/09
HIGHEST GUST SPEED/DIRECTION 37/220 DATE 11/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.50
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 24
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 44
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 0 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 2 SLEET 0
FOG 2 FOG W/VIS
Weather, natural disasters & climate news and information.
Santa Claus begins his whirlwind trip around the globe tonight to deliver toys to all the good little boys and girls! For more than 50 years the North American Aerospace Defense Command (NORAD) has tracked Kris Kringle on Christmas Eve and helped to ensure he completes his journey safely.
Thus far the snow season has been far less than kind to Colorado. Snow totals are running well below normal from the plains to the Rockies.
The two key weather related words to describe the Denver area’s November 2012 of ‘dry’ and ‘warm’ hardly come as a surprise. The month saw unseasonably mild temperatures and little in the way of precipitation despite it historically being our second snowiest month.
