Monthly Archives: December 2012

CIMMSE 2012 in Review

The folks created a 2012 annual report and we thought we would share. Here’s for a safe and prosperous 2013 and for more collaborating! Here’s an excerpt: 600 people reached the top of Mt. Everest in 2012. This blog … Continue reading

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SHERB Tool, Documentation, and Support Now Available Via the NWS Software Collaboration Portal

Any interested NWS offices can now obtain the code, documentation, and support for the SHERB parameter smart tool via the NWS Software Collaboration Portal at: The SCP repository now contains both AWIPS 1 and AWIPS 2 versions of the … Continue reading

Posted in CIMMSE, Convection, CSTAR, High Shear Low Cape Severe Wx | 1 Comment

Gravity Wave in the NW Piedmont of NC this morning?

All, Rapidly falling pressures and anomalously strong winds are being observed in the far NW piedmont of NC this morning, suggesting the presence of a gravity wave.  The Mount Airy observation (KMWK) reported the following: METAR KMWK 261355Z AUTO 07031G42KT … Continue reading

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Potential for Significant Severe Weather on Wednesday December 26, 2012

All, Looking at the latest model guidance, it appears that a significant severe weather episode is likely over portions of the Carolinas during the afternoon and evening hours of Wed December 26. Shortwave energy over the Intermountain West this afternoon … Continue reading

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Multiple Rounds of Standing Wave Cirrus Clouds on Sunday

There were multiple rounds of orographic cirrus cloudiness east of the Blue Ridge on Sunday.  The image to the right is a visible satellite image from 23 December. An animation of the visible satellite imagery from 1301 to 2145 UTC … Continue reading

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HSLC Radar Climatology Update

Last month at the AMS Severe Local Storms Conference and the CSTAR Virtual Workshop, I presented some preliminary results from a climatology of HSLC mesocyclones and mesovortices. A recording of the SLS presentation can be found here, and the conference … Continue reading

Posted in High Shear Low Cape Severe Wx | 2 Comments

HSLC Tornado in FFC’s CWA Monday 12/17

Just thought you all might be interested in seeing some data from our weak HSLC tornado this afternoon (LSR had it NE of Alamo in Wheeler County at ~1749Z). The 0.5 degree tilt is ~4kft AGL and we’re ~40-45nm from the radar.  … Continue reading

Posted in High Shear Low Cape Severe Wx | 2 Comments