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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…
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Over the course of the last day, Tropical Depression 9 formed in the Atlantic Ocean north of South America and Tropical Depression 10 formed off the west coast of Africa. TD10 subsequently became Tropical Storm Hermine over the course of the day. It poses no threat to us in the Southeast. TD9 struggled a bit…
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The latest Drought Monitor, released yesterday, shows that as you might expect, drought was completely wiped out of Puerto Rico after the heavy rainfall from Hurricane Fiona, although it does remain in the US Virgin Islands. Meanwhile, there were some minor expansions of abnormally dry conditions in Alabama and Georgia. But the biggest expansion was…
Posted in: Drought -
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…
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Today is the first day of astronomical fall, as we cross the ecliptic and start to see days that are shorter than 12 hours due to the tilt of the earth’s North Pole away from the sun. And even though it’s felt like summer for most of the month, the cold front that went through…