Tropical Storm strengthens Sally, hopes to make landfall near New Orleans

Hurricane warnings have now been issued from New Orleans, Lake Pontchartrain and Lake Mourepas to Grand Isle, Louisiana, northeast to Ocean Springs, Mississippi. Sally continues to strengthen across the Gulf of Mexico with sustained winds of 50 mph.

A storm surge of up to 7-11 feet is possible near the center of the storm and just east of where landslides are feared. As the storm progresses, some places between southeast Louisiana and western Florida are expected to receive more than a foot of rain.

Tropical Storm Sally is the 18th hurricane of the 2020 Atlantic hurricane season.

Flood watches have been in effect for areas of Florida’s west coast, including Tampa, Bradenton, Port Charlotte and Fort Myers, since Sunday. These areas are expected to receive 2 to 4 inches of rain over the weekend.

Hurricane Watches and Tropical Storm Watchis have already been released along the Gulf Coast from Louisiana through Florida’s panhandle.

Louisiana Government. John Bell Edwards declared a state of emergency ahead of Tropical Storm Sally on Saturday evening.

“While we ultimately don’t know where Sally will make landfall, much of Southeast Louisiana is in a storm cone and there is an increased risk of tropical storm forces or hurricane-force winds. The storm is likely to be very severe, “Edwards. Said in a news release.

In New Orleans, Mayor Latoya Cantrell issued a mandatory evacuation order for residents outside the city’s levy protection system. The evacuation will begin at 6 pm for the islands of Venice, Irish Beau and Lake Catherine.

Most forecasting models are moving toward the Sally North Gulf Coast and possibly landscaping somewhere between New Orleans and Panama City by Monday or Tuesday, though if the track drifts westward or slows down, Landfall may be closed by Wednesday.

According to the National Hurricane Center, “the cyclone will likely become a hurricane in 2 to 3 days, although an increase in vertical shear may slow the rate of intensity in the northern Gulf of Mexico.”

Once it reaches that area of ​​the Gulf Coast, the steering pattern breaks and the system approaches the coast.

Whether the coastline is offshore before land harvesting or in terms of onshore rainfall will not make much difference. In either case, significant flooding is possible due to slow moving along the Gulf Coast.

At the moment, there is a possibility of widespread rainfall accumulation of 4 to 6 inches. However, there will be isolated areas right next to the coast that can cause more than a foot of rain.

Another system, the Tropical Storm Twenty, has formed in the central tropical Atlantic, according to the NHC. Twenty mph has a top speed of 35 mph.

Twenty is expected to strengthen a tropical storm by tomorrow and a storm by next week, and if so, will be named Teddy. The first record of the 19th named Hurricane is of 4 October 2005.

Already an active season

So far this season, we have seen the names of 18 storms. The average for an entire season is 12. At the beginning of the season, forecasters called for a very active season.

Several storms broke the oldest record to date, including Cristobal, whose record was the earliest “C” hurricane in history, and Hanna was the earliest “H” hurricane. All three named storms (Arthur, Bertha and Dolly) set the record for their respective letter to be the earliest named storms.

Sally is one of several systems in the Atlantic. NHC is currently looking at six regions: two tropical storms, two tropical depressions and two tropical disturbances. Thursday marked the peak of the Atlantic hurricane season.

CNN meteorologist Haley Brink says, “Tropical Storm Paulette is forecast to be strong in the storm today.” “Paulette is forecasting to track toward Bermuda and could potentially make a landslide as a Category 2 hurricane on Monday morning. A storm watch is in effect for Bermuda with hurricane conditions within 48 hours. Tropical The state of the storm will start affecting Bermuda on Sunday afternoon and the storm. The situation will start from Sunday night. ”

Another system to watch is a wide area of ​​low pressure southwest of the Cape Verde Islands. This system is now tropical depression 20. Only three names remain in this year’s official list after Sally: Teddy, Vicky and Wilfred. NHC would then proceed to use the Greek alphabet.

La nina is officially here

On Thursday, the National Oceanic and Atmospheric Administration announced that they were issuing a La Niña advisory, meaning that La Niña conditions exist in the central and eastern Pacific Ocean.
In a typical El Niño phase, most of the Pacific Ocean is characterized by warm water, while La Niña includes the cooling of those same Pacific waters. In the case of hurricanes, La Niña weakens the high atmospheric winds, which allow hot air pockets to grow vertically and develop into storms.