Tropical Cyclones

TS Arthur Threatens U.S. East Coast

The first tropical storm and soon-to-be hurricane is threatening to affect the U.S. East Coast on this 4th of July Weekend. The circulation TS Arthur is gradually intensifying, and its structure of convection is becoming more symmetric. The time at which it crosses the hurricane intensity threshold has accelerated. For more, please read the summary of expected impacts as outlined by the The Washington Post’s Capital Weather Gang.


First Atlantic Hurricane of 2013

After a late start, the first hurricane of the 2013 Atlantic Hurricane Season has formed. Thankfully, Hurricane Humberto is far away from land and is not expected to affect the United States at this time. For more about the current tropical cyclone activity in the Atlantic, please read Dr. Brian McNoldy’s recent blog article.

All Quiet in the Atlantic... (For Now)

As we continue to approach the climatological peak of the Atlantic hurricane season, all appears to be quiet for now. This synopsis by Dr. Brian McNoldy a little less than a week ago still holds, and the global numerical weather prediction models (e.g., GFS, ECMWF, UKMET, NAVGEM) still show little sign of any tropical cyclogenesis in the coming days and into early next week. The tropical Atlantic has recently felt the effects of dry, dusty Saharan air blowing in from Africa, which has helped to suppress tropical cyclone activity. This is expected to continue in the coming days.

nasa_2013080800_dustex_atlSource: WeatherBELL

However, now is not the time to let your guard down! There is still much more to the Atlantic hurricane season, and now would be a great time to review your hurricane preparedness plans, particularly for our friends on the East and Gulf Goasts! Also, please take a moment to read Dr. McNoldy’s “cone refresher” to review the meaning of the National Hurricane Center’s forecast track product. This “Hazardous Weather Blog” is intended for a wide audience interested in all weather hazards, so for Atlantic-specific tropical cyclone updates, please stay tuned to Dr. McNoldy’s “Tropical Atlantic Update,” which is a source of reliable blog posts about current activity in the Atlantic.