Hurricane Irma Siphons Water Away from West Florida Coast

An interesting phenomena has been observed in the wake of Hurricane Irma as it moves along the west Florida coastline.  Several images have been put on social media of water drastically receding away from the coastline, whereas tropical storms usually result in surge as they make landfall. This phenomenon is largely due to 2 factors.  First, the winds ahead of Irma are…

Irma Landfall Update, 8-Sept

Our coupled models, initialized at 8pm on September 7th, have completed and are now able to resolve Irma making landfall in Florida sometime between 2am and 5am Sunday morning.  As a result, both the 3 and 7 day runs are capable of resolving the storm and currently point the landfall as occurring between Miami and Homestead (where Andrew made landfall in August 1992)….

Irma 7-Day Forecast Updates (Sept 6 and 7)

Over the last few days, the 7-day forecast experiment upgrade has been working well.  Our output from forecasts initialized on the 6th and 7th are largely in line with the forecast models that the National Hurricane Center (NHC) has been favoring in their forecast tracks.  We have been utilizing additional resources provided by the High Performance Computing (HPC) center at NC State…

For Irma, the First Ever 7-Day CNAPS Forecast

Over the last few weeks, we have been working to expand the current CNAPS forecast from 3 to 7 days.  With the appearance of Hurricanes Harvey and Irma, and the peak of the hurricane season on September 10, we were graciously allocated additional computing power from the High Performance Computing (HPC) Center at North Carolina State University to perform some experimental simulations of…

State of the Sciences at Hunt Library

NCSU’s College of Science set up tables of information and activities throughout Hunt Library on April 21. The Ocean Observing and Modeling Group was represented by Nabi Allahdadi, Shun Mao, Laura McGee, and Jennifer Warrillow. Hundreds of people toured the Library to learn about the science conducted at the university. Nabi, Shun, Laura, and Jennifer had the opportunity to explain ocean modeling…

Cruise Planning for the Final Push

Onboard the R/V Neil Armstrong, OOMG’s Joe Zambon and NCSU Marine Science undergrad Lauren Ball have been assisting with the NSF-funded Processes investigating Exchange Around Cape Hatteras (NSF-PEACH) project. A crucial component of the ongoing cruise is to utilize real-time in situ, satellite, and model data to assist Chief Scientist Magdalena Andres position the ship for crucial measurements while at sea. Joe…

Filling the Gaps with Models

http://oomg.meas.ncsu.edu/wp-content/uploads/2017/04/temp.mp4

Throughout the NSF-PEACH research cruise, OOMG’s Joe Zambon has been providing data to PIs and Chief Scientist Magdalena Andres for cruise planning. Several study sites were pre-determined months in advance, but this data has been instrumental in determining supplementary surveys of the Gulf Stream. In addition, short-duration features such as eddies have been sampled by determining their location while at sea. One…

Bathymetric Survey Off Cape Hatteras

One cruise objective for the April 2017 NSF-PEACH research cruise is to conduct a bathymetric survey of the shelf break approximately 20 nautical miles east-southeast of Cape Hatteras, NC. UNC’s Sara Haines explains that existing bathymetry in this area is of questionable quality possibly owing to the stitching of hand-drawn bathymetric maps in along the line of latitude at 35ºN. Over 2…

OOMG Teaches Weddington Middle Schoolers About Oceanography

Approximately 250 eighth grade students from Weddington Middle School (near Charlotte, NC) began their three-day field trip to NC’s Outer Banks with a marine science presentation by OOMG scientists at NC State University’s James B. Hunt, Jr. Library. On March 29, graduate student Laura McGee, Lab Manager Jennifer Warrillow, and Research Assistant Professor Joe Zambon introduced the students to their research in…

CNAPS Prediction for This Weekend’s Winter Storm

A major winter storm is expected to impact the southeast US and the Triangle region of North Carolina this evening into Saturday morning and afternoon.  As with most winter storm events of this magnitude and in this region, a serious concern is not the amount of precipitation, but precipitation type.  The impact of this event will be strongly influenced by the timing of the…