With its towering mountains and pristine mountain landscape, Colorado’s high country is not normally associated with tornadoes. Saturday however a rare high altitude twister appeared in the skies and touched down at the second highest altitude a tornado has ever been recorded at. Read the rest of this story on Examiner.com including amazing video.
The effects of our annual monsoon season are portrayed in detail in our look back at this week in Denver weather history. Numerous cases of flooding resulting from heavy rainfall are seen as are other severe weather events including hail and even tornadoes.
From the National Weather Service:
13-5
In 2008…a streak of 24 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically…no new single day record high temperatures were set in the month of July. In August however…a record of 104 degrees was set on the 1st…and another record of 103 degrees was set on the 2nd. In addition…a record low min of 70 degrees was set on August 2nd.
18-2
In 1987…a streak of 16 consecutive days of 90 degrees ranked 4th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.
27-31 in 1956…96 percent of the total precipitation for the month of July occurred over the last five days of the month. Heavy thunderstorms produced 4.00 inches of rainfall at Stapleton Airport. This amount of precipitation in 5 days or less had been exceeded only 3 times in previous record. The last time had been in December of 1913 as snow. Considerable property damage occurred across metro Denver from flooding.
28-30
In 1889…dense smoke from forest fires in the mountains obscured the sun over the city for three days.
In 1971…a vigorous cold front late on the 28th produced northeast wind gusts to 39 mph and record breaking cold temperatures on the 29th and 30th. The temperature dipped to 47 degrees on the 29th and 43 degrees on the 30th… Setting record minimums for the dates. Upslope cloudiness along with rain and fog early on the 29th helped set a record low maximum temperature of 58 degrees for the date.
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In 1878…a total eclipse of the sun was observed at 2:20 pm. From before to during the eclipse…the temperature in the sun fell from 114 degrees to 82 degrees…while the shade temperature fell from 89 degrees to 83 degrees.
In 1880…heavy thunderstorm rain and hail flooded streets and ditches.
In 25 minutes…0.76 inch of rain fell on the city along with large hail to 3/4 inch in diameter. There were no strong winds with the storm.
In 1890…a thunderstorm produced sustained west winds to 48 mph with gusts to 60 mph…but only 0.01 inch of rain.
In 1956…heavy rain and hail fell over west and north Denver.
In 1964…hail to 3/4 inch in diameter fell at Lowry Airfield.
In 1978…a small tornado was sighted just east of Parker. No damage was reported.
In 1989…heavy rain drenched all areas of the Front Range… Both in the foothills and adjacent plains. Amounts of 1 to 3 inches were general over the area. Damage was confined to a few minor road washouts and some street…basement…and crop flooding. Thunderstorm rainfall totaled 1.44 inches at Stapleton International Airport where north winds gusted to 43 mph. Lightning struck a 250 thousand dollar home near Nederland and started a fire which destroyed all of it except two garages. Lightning started a fire in a home in Evergreen. It reached the house by hitting a tree…then traveling through a metal clothesline strung between the tree and the building.
In 1995…thunderstorm winds gusted to 59 mph in Brighton. Thunderstorm winds from the south-southeast gusted to 41 mph at Denver International Airport. High temperature of 99 degrees was a new record maximum for the date in Denver.
In 1997…heavy rain caused flooding in an apartment building in Westminster. Several residents had to be evacuated from their apartments. A woman in aspen park received minor injuries…when lightning passed through an office window and struck her. She suffered temporary blindness for about 15 minutes.
In 2003…hail as large as 1 inch in diameter pelted Conifer… Highlands Ranch…and Franktown.
Continue reading July 29 to August 4 – This Week in Denver Weather History
The old saying says not to mess with Mother Nature and she apparently wanted to drive that point home in Boston yesterday. During a live weather forecast on WBZ-TV yesterday a lightning strike knocked the lights out in the studio.
Thunderstorms rolled through much of the northeastern United States yesterday. The storms brought heavy rain, strong wind and plenty of lightning.
Ironically Chief Meteorologist Todd Gutner was discussing those exact weather conditions when the bolt hit.
Following the boom of thunder and a burst of static the lights went out and some of the displays flickered. Amazingly enough the station was able to continue broadcasting and Gutner finished his forecast, albeit a bit in the dark.
Check out the video below.
Mother Nature can be destructive but one weather forecast that recently appeared on YouTube called for conditions approaching Armageddon. The video, recorded by a WTVR Richmond meteorologist, calls for everything from a volcano causing…
METAR stations are weather stations typically located at airports that report weather conditions in a standardized format. A new page on ThorntonWeather.com allows you to check current conditions from these stations at locations like DIA, Buckley Air National Guard Base, Boulder Municipal Airport and more.
Conditions that are reported in a raw format by METAR stations include temperature, dew point, wind speed and direction, precipitation, cloud cover and heights, visibility, and barometric pressure. These can also transmit more detailed information such as lightning, tornadoes and more.
The conditions are typically updated only once or twice an hour so they are not entirely “real time” but are useful for a quick glance.
Our new METAR page takes lists 18 area stations from Colorado Springs to Cheyenne in order by their distance from Thornton. It takes the coded information and displays the latest reported conditions in an easy to use format.
You can check out our new METAR page here. It is also available under the Live Conditions menu on the left.
Check our website change log for another changes and enhancements.
Related pages on ThorntonWeather.com:
A large solar flare on Thursday was expected to lead to heightened aurora activity this weekend but not as far south as Colorado. One Thornton resident however appears to have captured images of the northern lights Sunday morning.
The images by Justin Whitesel show a purple sky over the city as the geomagnetic storm hits the Earth. You can view an animation Whitesel put together here.
Aurora forecasts:
Related:
Denver’s weather is rarely boring and our look back at this week in Denver weather history shows that. There have certainly been many notable thunderstorms with hail and damaging wind. However the most interesting item is the first – and only – recorded instance of snow during the month of July in the Mile High City.
7-25
In 1934…a streak of 15 consecutive days of 90 degrees ranked 5th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.
13-5
In 2008…a streak of 24 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically…no new single day record high temperatures were set in the month of July. In August however…a record of 104 degrees was set on the 1st…and another record of 103 degrees was set on the 2nd. In addition…a record low min of 70 degrees was set on August 2nd.
14-15
In 1985…thunderstorms dumped heavy rain and hail at numerous locations along the Front Range from Denver north. Some of the heaviest rain fell in northern and western suburbs of Denver. Up to 2.6 inches of rain drenched Arvada…and Thornton was soaked with 2 inches in 45 minutes. At least 5 homes in Arvada suffered extensive damage from water and mud…and many streets and basements were flooded. In southern Jefferson County…11 homes were struck by lightning.
15
In 1879…a terrific hail storm occurred in the vicinity of Buffalo Station on the south park railroad in the South Platte River canyon about 39 miles south of Denver. Stones as large as hen’s eggs fell thick and fast and broke nearly every pane of glass in the windows of the building. A “waterspout” or cloudburst caused much loss of property from flash flooding on a nearby gulch. The torrent of water caused a deafening roar as it uprooted trees and carried huge Boulders and other debris. It struck the house and sawmill simultaneously and carried them away like straws…leaving little behind. The water continued to rush down the gulch for several hours. Serious damage was done to the south park railroad. The track and roadbed were destroyed for several miles. At about the same time…heavy rains in the vicinity of the headwaters of Cherry Creek produced a rapid rise in the creek…which drowned a few head of cattle and washed away two footbridges and some fences. Only 0.10 inch of rainfall was recorded in Denver.
In 1896…a thunderstorm produced sustained southwest winds to 40 mph with gusts to 46 mph.
In 1902…the temperature reached a high of 100 degrees in downtown Denver…which was a record maximum for the date.
In 1929…a thunderstorm did considerable damage to property in the eastern portion of the city. Heavy hail ranging in size from 1/4 to 3/4 inch in diameter…severe lightning… And high winds accompanied the heavy rain. Basements were flooded…and streets were impassable in places for several hours due to the heavy rainfall. Lightning damaged several telephone poles. Hail did extensive damage to gardens and flowers. The hail was up to a foot deep in places. There was no estimate of damage from the storm. A thunderstorm produced only a trace of rain and east winds to 24 mph in downtown Denver.
In 1959…thunderstorm rain totaled 0.41 inch in 8 minutes and winds gusted to an estimated 50 mph near downtown Aurora where half inch diameter hail was also reported. After the storm moved to the east…complete double rainbows were observed from the weather bureau office at Stapleton Airport.
In 1962…hail pelted the area in Adams County around Henderson and Brighton…causing extensive damage to corn…grain…beets…and row crops. Crop damage was estimated at 250 thousand dollars.
In 1963…a man received severe burns when struck by lightning while painting a building in south Denver.
In 1965…a state patrolman sighted a tornado near Bennett. It touched down over open ground…but caused no damage.
In 1967…heavy rains flooded streets and underpasses in south Denver. Heavy rain and minor wind damage were reported in wheat ridge…Aurora…Englewood…and Littleton. Basements were flooded and power disrupted. The clouds and rain resulted in a high temperature of only 72 degrees…which was a record low maximum for the date.
In 1974…a severe lightning storm damaged several homes and caused a number of power outages in both Denver and western Arapahoe counties.
In 1975…lightning killed a girl west of Boulder.
In 1982…winds gusted to 60 mph at Stapleton International Airport…and strong winds blew down walls at a construction site in Aurora where a nearby tree was uprooted.
In 1985…0.79 inch of rain fell in 30 minutes at Castle Rock. Much of the town lost power when lightning struck the town’s transformer.
In 1992…a man was struck by lightning while horseback riding near Castle Rock. Two people were struck by lightning near Highlands Ranch in south metro Denver. A man was struck by lightning while riding in the back of a pick-up truck in Franktown. All received minor injuries. Strong thunderstorms moved through east metro Denver…producing large hail and flash flooding. Hail up to 1 1/4 inches in diameter fell near Buckley Air National Guard base. Rainfall of 1 to 3 inches fell in Aurora in less than an hour…leaving water up to 18 inches deep in some areas. Thunderstorm rainfall was measured at 0.97 inch at Stapleton International Airport…where 3/8th inch diameter hail fell and south winds gusted to 44 mph.
Continue reading July 15 to July 21 – This Week in Denver Weather History
The next time severe weather strikes, don’t be surprised to receive a message on your cellular phone from Uncle Sam warning you of the danger. A new service launched by NOAA’s National Weather Service and the nation’s wireless service providers has begun sending out weather warnings to mobile phones. Get more details on this new potentially life-saving system on Examiner.com. Remember too that ThorntonWeather.com offers severe weather alerts via email.
The coronal mass ejection (CME) that resulted from the solar flare on Thursday has begun hitting the Earth. Satellite and terrestrial stations began picking up the increase in geomagnetic activity at around 1:00pm MDT Saturday.
The solar flare was a significant one as is the CME however it is not expected to be powerful enough to have any ill effects on earth. More significant events can affect satellites and even bring down power grids.
Here on Earth the most notable effect will be an increase in aurora activity. Unfortunately it doesn’t appear the CME is strong enough to push the aurora down to Colorado but areas across the northern latitudes of the contiguous United States may be treated to a show.
Aurora forecasts:
Related:
The video below from NASA combines various wavelength views from the Solar Dynamic Observatory’s (SDO) AIA instrument.
Mother Nature can be destructive but one weather forecast that recently appeared on YouTube called for conditions approaching Armageddon. The video, recorded by a WTVR Richmond meteorologist, calls for everything from a volcano causing temperatures of 400 degrees to an attack by Godzilla. Read more about this apocalyptic forecast on Examiner.com and check out the video!
