-
Recent Posts
- Collaborative Effort to predict hourly temperature drop during the August, 2017 Total Solar Eclipse
- Increasing Threat for HSLC Severe Weather on Tuesday Morning across Portions of Virginia and North Carolina
- HSLC Products and Feedback Form
- Winter 2017 Mid-Atlantic and Southeast Sub-regional SOO and Northwest Flow Project Virtual Workshop
- Late Spring HSLC Tornadoes across the Carolinas and Virginia: 4-5 May 2017
Archives
- January 2018
- December 2017
- September 2017
- August 2017
- May 2017
- April 2017
- March 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- June 2016
- May 2016
- March 2016
- February 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
- June 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
Categories
Meta
January 2021 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Author Archives: skeighton
Late Spring HSLC Tornadoes across the Carolinas and Virginia: 4-5 May 2017
In association with a high amplitude closed upper low over the Mississsippi Valley, and a retreating wedge front at the surface, a mainly late night outbreak of wind damage and tornadoes occurred in a classic high shear, low CAPE (HSLC) … Continue reading
Posted in Uncategorized
3 Comments
NWFS Collaboration Group authors “Northwest Flow Snow Aspects of Hurricane Sandy” in Feb. 2016 Weather and Forecasting
Just a short note to let readers know that several of us who have been collaborating on NW Flow Snow issues in the southern Appalachians now for a number of years have had our manuscript on the northwest flow snow … Continue reading
Posted in Uncategorized
1 Comment
NWA Journal of Meteorology article examines utility of total lightning data in weak shear Appalachian storms
A collaborative effort between VA Tech and the NWS Blacksburg office, funded by the GOES-R program, studied the potential utility of total lightning data (from Earth Networks Inc) in weak shear storms over the Central Appalachian region. Recently, a summary … Continue reading
Posted in Lightning
Tagged Appalachians, Earth Networks Total Lightning Network, Lightning
1 Comment
Recorded presentation on Utility of Total Lightning Data for Single-cell Storm Severity in Central Appalachians
VA Tech graduate student Paul Miler recently completed work that was part of a GOES-R COMET Partner’s Project between VT and NWS Blacksburg on the potential utility of total lightning data (archived data from ENI) in diagnosing the severity of … Continue reading
Posted in Lightning
Leave a comment
High-Shear, Low-CAPE Environment Yields EF1 Tornado in King, NC on 21 Sept 2013
Posted by Steve Keighton, WFO Blacksburg, VA Often, High-Shear Low CAPE (HSLC) events have clear signals of a severe weather threat due to strong frontal scale forcing, very high low-level wind shear, and/or weak but obvious instability. Other times, these … Continue reading
Posted in High Shear Low Cape Severe Wx
Leave a comment
Watch for banded snow showers developing at night during current late-season NW Flow Snow event.
What is expected to be an impressive late season NW Flow Snow event to ring in the Spring season has begun today (Monday March 25th, and may last well into Wednesday or Wednesday night). One interesting aspect of these events … Continue reading
Posted in NW Flow Snow
1 Comment
Classic Severe MCS “Not-crossing” Case this morning
No detailed review here, but thought I’d just take this opportunity since we had a strong MCS (mature bow echo) approaching the west side of the southern Appalachians this morning, with a history of severe weather (see below), to remind … Continue reading
Posted in Convection
1 Comment
Effects of Upstream Soil Moisture on NW Flow Snow Events
For those who have not been participating in the discussion group related to NW Flow Snow in the southern Appalachians, I wanted to briefly pass along a very short summary of some interesting model simulation work on the impacts of … Continue reading
Posted in NW Flow Snow
Leave a comment
GoToMeeting Presentation on NW Flow Snow Simulations
I thought I’d post this here for wider distribution, and since the NW Flow Snow research efforts are a spin off of past CSTAR activities. On Oct 26 at 1pm, Doug Miller (UNC-A) will be presenting a summary of his … Continue reading
Posted in NW Flow Snow
Leave a comment
Another great HSLC case to add
I think we should consider adding the April 4-5 late night QLCS event to our database (it will be in my spreadsheet anyway). SBCAPE near zero in our area but MUCAPE maybe nudging up toward 500 J/kg along NC/VA border. … Continue reading
Posted in High Shear Low Cape Severe Wx
5 Comments