Weather Update: Tropical Storm Danny 2015 May Become Hurricane By Friday
The National Weather Service expects Tropical Storm Danny to intensify as the season’s first hurricane Friday as it progresses and strengthens westward across the Atlantic.
As reported by Patch.com, the agency wrote in its 5 p.m. update, “Tropical Storm Danny, currently centered about 1,325 miles east of the Lesser Antilles, has slowed its forward motion. It’s now moving westward near 10 mph, and a west-northwestward motion at a slightly slower forward speed is expected during the next 48 hours.”
For the next few days, Danny will be moving west-northwest and could turn into a hurricane by Friday, making it the first hurricane of the season. While there have been three other named storms, none of them reached the maximum sustained wind speeds of 74 miles per hour to classify them as hurricanes.
The presence of dry air could hamper the storm’s intensification into a hurricane. According to AL.com, the dry air – which constitutes of Saharan dust – could have constricted Danny’s development on Wednesday.
As reported by Inquisitr, the Weather Channel also spoke about the effect of dry weather on Danny.
Effect of dry weather on Danny
“Dry air hampers tropical cyclones by encouraging the development of stronger thunderstorm downdrafts, which then either squelch nearby thunderstorms from forming or push them away. This dry air is also stable, meaning it suppresses upward vertical columns of air needed to maintain or form new thunderstorms. This will be a continual challenge to Danny over the next several days, as water vapor imagery indicates an ample reservoir of dry air north of Danny extending westward into the eastern Caribbean Sea.”
The NOAA said, “There is nothing obvious that would impede gradual intensification during the next few days, except for the possible entrainment of dry air associated with a Saharan Air Layer following the cyclone to the north. Around the time Danny approaches the Lesser Antilles in 3 to 5 days, global models have divergent solutions regarding the strength and position of the mid-oceanic trough, which will ultimately affect Danny’s intensity.”
If it continues to progress on its current path, it will reach southeast of Puerto Rico by Monday.
As of 2 p.m., another disturbance a few hundred miles out from Bermuda was spotted, which has a 40 percent possibility of strengthening into a tropical depression in the next five days. Moreover, Tampa Bay is expected to see development of storms Wednesday.
Fourth Atlantic storm
Danny is the fourth Atlantic storm this season.
Ana, the first, struck the South Carolina coast on May 10. It brought along 45 miles per hour winds.
Bill, the second, arrived June 16 on Matagorda Island in Texas. It had winds of speed 60 miles per hour.
Claudette, the third, was named on July 13. It was accompanied by winds of 50 miles per hour.
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