Tropical weather
-
For most of the day on September 25, Tropical Storm Ian was looking disorganized because dry air at mid-levels in the atmosphere were keeping it from building vertical convection needed to strengthen the storm. However, the winds have increased this evening and the storm structure is expected to tighten over the next few hours as…
Posted in: Tropical weather -
Yesterday at this time, Tropical Depression 9 had just become Tropical Storm Ian. Yesterday and early today, Ian has been fighting some adverse conditions, including outflow from Hurricane Fiona. But Fiona has moved out of range and with warm ocean temperatures and no wind shear aloft, there is not much to keep Ian from developing…
Posted in: Tropical weather -
The latest 7-day QPF map is heavily impacted by today’s forecast of where Hurricane Ivan is likely to go based on one model. It shows that areas along of and to the east of the track of the storm may be hit by several inches of rain while areas to the west of the track…
-
With the recent increase in hurricane activity in the Atlantic, you may be seeing pictures of the National Hurricane Center’s forecast cones for upcoming storms. There is a lot of misinformation about what the cone means and what it does not mean. NOAA provided this short video that explains how the cone is drawn and…
-
While the early part of this year’s Atlantic tropical season was very quiet, lately things have gotten a lot more active. Fortunately, the recent storms so far have kept well away from the Southeast as a strong high pressure center has diverted the storms away from us. This may be about to change with a…
-
For the last week, we have been watching the development of Tropical Storm Fiona as it moved towards the Southeast from the eastern side of the Atlantic Ocean. Today, Fiona became a hurricane just shortly before it made landfall near the southwestern tip of Puerto Rico. Impacts from Fiona on PR have been tremendous, and…
-
You may be wondering why this year’s hurricane season so far has been so quiet. I think that an unfavorable atmosphere dominated by a lot of dust off of Africa has tamped things down so far, although that may be ending. Here is a good description of other quiet hurricane seasons from Weather.com. Even though…