Category Archives: Uncategorized

Tropical Storm Hermine Follow Up with Lessons Learned, Wind Gusts and Gust Factors

To evaluate the performance of CSTAR related research to operations activities, members of the CSTAR Tropical Cyclone (TC) wind team recently discussed experiences with Tropical Storm Hermine (September 2016).  In addition, the sustained winds, wind gusts, and gust factors for … Continue reading

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Forecasts of Winds and Wind Gusts Associated with Tropical Cyclone Hermine Using CSTAR Research

The approach of Tropical Cyclone (TC) Hermine provides WFOs in the Carolinas and Virginia with another opportunity to use and evaluate a technique to forecast tropical cyclone winds and wind gusts. A Collaborative Science, Technology, and Applied Research (CSTAR) project … Continue reading

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New Paper Comparing ASOS Near-Surface Winds and WSR-88D-Derived Wind Speeds in Landfalling Tropical Cyclones

A new article in Weather and Forecasting by Krupar et al. entitled “A Comparison of ASOS Near-Surface Winds and WSR-88D-Derived Wind Speed Profiles Measured in Landfalling Tropical Cyclones” may be of interest to some collaborators. The researchers made 22 comparisons … Continue reading

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Mesonet Data Captures Impressive Nocturnal Surface Theta-E Rise Immediately Ahead of QLCS EF1 Tornado in Ohio (June 23rd, 2016)

During the nighttime hours of June 22nd/23rd, a cluster of severe thunderstorms expanded (QLCS) as it moved from Indiana into Ohio ahead of a seasonably strong shortwave trough shifting through the Great Lakes.   This cluster of storms had previously been responsible … Continue reading

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Webinar on the Environmental Conditioning of Cool Season, Low Instability Thunderstorm Environments in the Tennessee and Ohio Valleys and Southeastern U.S.

In late April, Jessica King, presented a summary of much of her CSTAR research simulating severe and non-severe high shear, low CAPE convective events. The presentation focused on the examination of the rapid destabilization that occurs in the few hours … Continue reading

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

Potential HSLC severe event Thursday, March 24th, including VORTEX-SE deployment

A potent upper-level trough (Fig. 1) and associated surface cyclone (Fig. 2) moving through the eastern CONUS will bring a chance for severe high-shear, low-CAPE (HSLC) convection to portions of the Ohio and Tennessee Valleys on Thursday. This event is … Continue reading

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NWP Systems Reference Updated for ECMWF Changes

On March 8, the European Centre for Medium-Range Weather Forecasts (ECMWF) upgraded the Integrated Forecast System (IFS) with a significant reduction of the horizontal resolution of the high-resolution (HRES) and ensemble (ENS) forecasts. The upgraded horizontal resolution is now around … Continue reading

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