Monthly Archives: August 2011

Irene Wind Verification

Here is a look at some preliminary, quantitative comparisons of the NDFD forecasts and the HWIND analysis for various times. Essentially, I have interpolated the NDFD and HWIND gridded data onto a common grid, and then calculated the difference. Warm … Continue reading

Posted in TC Inland and Marine Winds | 1 Comment

Wind Speed Verification Discussion from TC Storms Mailing Group

There has been a lengthy recent discussion on the verification of Irene’s maximum sustained winds near the time and immediately following landfall. The participants were discussing how at the time of landfall, NHC had the system with maximum sustained winds … Continue reading

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Initial Sustained Wind Analysis for Irene using data from the H*Wind Project and buoy/coastal observations

Since 1996 the Hurricane Research Division has participated in the H*Wind Project. The purpose is to develop an integrated tropical cyclone observing system in which wind measurements from a variety of observation platforms could be used to develop an objective … Continue reading

Posted in CSTAR, TC Inland and Marine Winds | 1 Comment

Irene Brings Danger and Opportunity

The likelihood of a strong hurricane Irene making landfall on the Carolina coast seems nearly certain and we are thinking about the potential for significant damage, injury, and disruption. This concern is slightly offset with the opportunity for ongoing collaborative … Continue reading

Posted in CSTAR, TC and Boundary QPF, TC Improved Initial Conditions, TC Tornadoes | 2 Comments

Approach of Hurricane Irene and frontal systems

We all know about the uncertainty surrounding the forecast track of Hurricane Irene and the possible implications.  To add to the complexity, models are also picking up on a potential interaction with the cold front that is expected to trail … Continue reading

Posted in CSTAR, TC and Boundary QPF | 1 Comment

CSTAR Tropical Cyclone QPF group conference call notes

The CSTAR Tropical Cyclone QPF group held its first conference call on Thursday, August 4th. There were 6 participants from 2 WFOS’s, the SERFC, HPC, and NCSU. Over the past year, this project has been split between two studies, though … Continue reading

Posted in CSTAR, TC and Boundary QPF | Tagged | 1 Comment

SPC Mesoanalysis changes benefit High Shear Low CAPE (HSLC) severe weather operations

A portion of an ongoing CSTAR project between NC State University and the NWS is intended to improve the understanding of High Shear Low CAPE (HSLC) severe weather events in the Southeast. Project participants from the NWS include 11 Weather … Continue reading

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