TornadoVideos.net

Posted At: March 10, 2008 @ 11:41 AM

Posted By: Reed Timmer

Check out this comprehensive video production of this weekend's blizzard in Montreal, Quebec, as shot by local resident, "Caro".  12-24 inches of total storm accumulation occurred in this area, with drifts approaching 5 feet! 

Posted At: March 9, 2008 @ 12:11 PM

Posted By: Reed Timmer

This weekend's snowstorm from the Ozark Mountains through the Ohio River Valley resulted in record-breaking snow accumulations for many areas.  20.4 inches of snow fell in Columbus, OH, which shattered the previous record of 15.3" set in February of 1910!  Over a foot of snow was commonplace across parts of the central MS River Valley into the Northeast, with IN, KY, OH, southernOntario and Quebec, Canada being the hardest hit.  3-5 foot drifts and blizzard conditions shut down roads and knocked out power to tens of thousands of people!  Up to 30 inches of snow is on the ground in northern OH, where lake effect and lake enhanced snow added to the storm totals.  Here is a list of the snowfall totals from the hardest hit areas in northern OH:


CNN story:
http://www.cnn.com/2008/US/weather/03/08/march.snowstorm.ap/index.html


STORM TOTAL REPORTS:

Southwest OH:
http://kamala.cod.edu/oh/latest.nous41.KILN.html

Northern OH:
http://kamala.cod.edu/oh/latest.nous41.KCLE.html

Southeast IN:
http://kamala.cod.edu/in/latest.nous41.KILN.html

Northern KY:
http://kamala.cod.edu/ky/latest.nous43.KLMK.html

Posted At: March 5, 2008 @ 3:26 PM

Posted By: Reed Timmer

A potentially record-breaking snow storm is forecast to hammer parts of central and southern Oklahoma into the Ozark Mountain region tomorrow through Friday, with up to a foot of snow likely, especially over southern OK into northern AR/southern MO.  The 12z WRF from this morning is predicting .75-1 inch of water equivalent precip from southern OK into northern AR, but higher amounts will likely fall within persistent mesoscale bands.  The 12 hr precip forecast valid 00z tomorrow is shown below:


This is definitely a classic, TEXTBOOK winter storm pattern for southern/central OK into the ozarks, with a nice, nearly cut-off upper trough pivoting across the Southern Plains, with the track of the 500 mb vorticity maximum just south of the Red River.  A tight baroclinic zone will also be in place across OK, with bigtime warm advection ahead of this system before the deformation zone snow arrives.  The WRF forecast surface and 500 mb patterns valid tomorrow evening are shown below:


Of course, winter storm warnings are now in effect across central OK for this system tomorrow, including the OKC Metro area, with winter storm watches further northeast.  These watches will likely be upgraded to warnings by tonight.  We'll be covering this system extensively from Norman, OK, so stay tuned for continuous video/news updates throughout the event!

Posted At: February 22, 2008 @ 10:42 AM

Posted By: Reed Timmer

5-9 inches of snow has already fallen across parts of eastern PA, northern NJ, and across the NYC Metro Area, with the highest totals reported from the Staten Island area.  However, the precipitation has already begun changing over to sleet and freezing rain as an area of warm air just above the surface advects northward.  The regional radar image from 16z show below as well as surface obs show the freezing line still off-shore the NYC Metro area, suggesting that ice accumulations will be a problem as the snow changes over to freezing rain. 


A mesoscale discussion has been issued by the Storm Prediction Center for the likelihood of hourly ice accumulation rates approaching 0.10" per hour from eastern PA across the NYC Metro Area this afternoon.  With up to 9 inches of snow already on the ground, the travel situation in this area could be ugly for the evening rush hour.

Posted At: February 15, 2008 @ 8:35 PM

Posted By: Reed Timmer

A small but heavy area of freezing precipitation has moved from Southwest into Central Oklahoma this evening, with over 1/4 inch ice accumulations possible where the heaviest thunderstorms reside.  Temperatures are in the upper 20s to lower 30s across the region, with warm advection and relatively warm temperatures moving northward just above the surface.  The result is a textbook freezing rain event including the OKC Metro area.  A radar loop from around 8:30 pm CST is shown below:


Winter storm warnings have been issued over West Texas and western Oklahoma  for this initial wave of precipitation tonight, and for heavy snowfall in association with the upper storm system tomorrow.  Moderate ice accumulations are expected over southwest into central OK this evening, with 4+ inches of snow likely by tomorrow night across the TX Panhandle and Northwest OK. 

Posted At: February 13, 2008 @ 9:55 AM

Posted By: Reed Timmer

A coastal low pressure system will deepen today just off the coast of New England, producing substantial amounts of rain, ice, and snow across the Northeast U.S. and the Canadian Maritimes.  Northern New England will see the brunt of the snowfall, especially across the higher elevations, with over a foot of accumulation possible.  Many areas in the valleys and lower elevations in central/northern New England will receive significant ice accumulations, with over  1/2 inch of accumulation  possible.  As the low pressure area deepens this afternoon/evening and moves towards Cape Cod, winds will increase across the region, leading to power outages in the hardest hit areas from ice.  A regional radar loop from this morning is shown below:


The RUC forecast for 2300 UTC this evening shows the low pressure center just west of Cape Cod, with an MSLP of 996 mb.  While this doesn't seem like a very deep system based on surface pressure, it is a fairly strong system when viewed relative to the surrounding anticyclones.   Stay tuned for updates on the snowfall and ice totals from this textbook coastal storm.

Posted At: February 1, 2008 @ 9:26 AM

Posted By: Reed Timmer

A major winter storm is still pounding parts of the Great Lakes Region and the Northeast on Saturday morning, with very heavy snow across IL, IN, Lower MI, and into Southern Ontario, and intense freezing rain across Pennsylvania, and New York State.  6-12+ inches have fallen or are expected to fall in the aforementioned heavy snow areas, with over 1/2 inch of ice accumulations in the warm sector where warm air is pumping northward over cold air at the surface.  The national radar loop below from Saturday morning shows the storm in its entirety:


When first glancing at the RUC-forecast MSLP map below, it appears that the storm system responsible for this massive precipitation shield is rather weak, with a minimum pressure of 1007 mb.  However, this cyclone is relatively intense when compared to the 1043 mb anticyclone to the northeast across the Canadian Maritimes! - read complete story.....

Posted At: January 31, 2008 @ 1:02 AM

Posted By: Reed Timmer

With a strong cold front passing across the Eastern U.S. on Tuesday, another storm system will soon be making news. This low is ejecting eastward from the Rockies, and phasing up with a developing surface low near the Texas Coast. This could mean severe weather for the Gulf Coast with the possibility of tornadoes. The other side of the low will likely bring snow from Oklahoma to Ohio. 
Below is the overall set up with severe weather discussion. Reed will talk more about the snow later this morning: 

Note the low in the Texas Panhandle, and the warm front in the Gulf. The warm front is moving northward! - read complete story.....

Posted At: January 29, 2008 @ 10:11 AM

Posted By: Reed Timmer

A powerful cold front is currently surging across the central U.S. as of Tuesday morning, with up to 40 degree temperature drops across the front in the Southern and Central Plains.   An intense low pressure system was moving slowly eastward just south of Hudson Bay, with a secondary low pressure area intensifying rapidly near Eastern IA/Northern IL.  This area of low pressure will intensify to the upper 970s as it moves towards the Great Lakes Region overnight.  A loop of the 12z WRF forecast panels for MSLP is shown below:


The front is particularly strong across Oklahoma, with temperatures near 70 in Southeast OK, plummeting to the low-mid 20s in the OK Panhandle!!  Here in Norman, we've had wind gusts over 50 mph all morning and were without power for an hour so during - read complete story.....

Posted At: January 28, 2008 @ 11:18 AM

Posted By: Reed Timmer

Near blizzard conditions pounded parts of Alberta, Canada yesterday, with winds gusting over 40 km/hr at times creating near white-out visibility in heavy snow.  Around 20 cm of snow fell across southeast Alberta, with significantly higher drifts.  For a great synopsis of the even, along with incredible pictures, check out the Boomer Photo blog below:

http://blog.boomerphoto.com/

The meteograms below show the sustained wind, wind gusts, temperature, and wind chill from Edmonton, AB during yesterday morning's winter storm (thanks to P Boomer for providing these!):


- read complete story.....