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Fewer storm days but tornado-clustering a trend? Implications? Plausibility longterm?

Oct 16, 2014 - 9:04 PM - by Jason Harris
Thought people might have some thoughts and speculations of interest on this article.
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Quote:

In the new study, published today in Science, Brooks and his colleagues tallied U.S. storms from 1954 to 2013, leaving out the small F0 twisters. Then they looked at the days on which those storms occurred. They found that the frequency of tornado days has
... [Read More]
  24 Replies | 3,127 Views


2014-11-22 FCST: South-Central Texas

Nov 20, 2014 - 9:42 AM - by James Gustina
James Gustina's Avatar
12Z NAM for this morning is still rolling in but this day is finally within a reasonable range to make a forecast thread about. Right now, it's looking like the quasi-stationary front kind of wobbling southward will begin rocketing north Friday night into Saturday through N Texas in advance of really strong moisture advection out of the GOM. Mid-upper 60s dews are being progged from the Gulf Coast all the way up to north of Dallas along the Red River in advance of a very compact, neutral... [Read More]
  7 Replies | 546 Views


Multiple-vortex/Wedge Tornadoes, Bernoulli, and urban areas

Nov 17, 2014 - 3:16 PM - by Joshua T. Clark
Joshua T. Clark's Avatar
To All,

Something that has always bothered me to no end is the potential damage that an upper-EF scale tornado would do to an urban area such as downtown OKC. The May, 31st 2013 monster could have impacted the downtown OKC area if it had stayed on the ground. My biggest question would be, taking into consideration the funneling effect of channeling winds through a venturi, what kind of wind speeds would be possible with a tornado such as this one? Also, could a tornado of... [Read More]
  6 Replies | 475 Views


Big lake effect snow, 2014-11-17 to 11-19

Nov 17, 2014 - 2:11 PM - by John Farley
John Farley's Avatar
Things are shaping up for a potentially near-record lake effect snow event off the east ends of Lakes Erie and Ontario from tonight into Wednesday. Lapse rates will be steep with temps as low as -40C at 500mb above the still fairly-warm lakes. NWS Buffalo is expecting 3-5 inch-per-hour accumulations at times in the heaviest bands, and thundersnow is a good bet with this event. Some areas could see 2-3 feet, with another lake effect event likely coming quickly on the heels of this one late in... [Read More]
  13 Replies | 863 Views


Severe Local Storms presentations now available

Nov 20, 2014 - 7:12 PM - by Skip Talbot
Skip Talbot's Avatar
The recorded presentations from the 27th annual Severe Local Storms conference are now available on the AMS website:

https://ams.confex.com/ams/27SLS/webprogram/27SLS.html

Lots of really interesting talks on the current understanding of how tornadoes tick. Great off season study material.
  1 Reply | 138 Views


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