Atlantic Tropical Weather Discussion (Text)

AXNT20 KNHC 240509

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1209 AM EST Sat Feb 24 2018

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through 
0500 UTC. 


A 1000 mb low pressure located over the eastern Atlantic near 
24N21W. This system will help to produce gale-force winds over 
the zone Irving within the next 24 hours. Another area of low 
pressure is over the Canary Islands near 29N15W. For more details,
refer to the Meteo- France High Seas Forecast listed on their 
website: www.meteofrance.com/previsions-meteo-


The monsoon trough enters the Atlantic Ocean near 06N11W and 
continues southwestward to 03N31W. The ITCZ continues from that
point to 00N48W. Scattered moderate convection is from 00N-06N 
between 10W-27W.



Generally fair weather prevails across the basin with only 
patches of clouds moving quickly across the area. Winds are 
mostly light to moderate out of the east and southeast across the 
area, and seas are up to 6 feet in some locations. No significant
changes are expected this weekend. Another front is expected to 
move over the northwestern waters on Sunday, but this feature is 
forecast to stall and weaken shortly after.


Fair weather conditions prevail across the basin. The only area
with a few showers is located south of Hispaniola and Cuba mainly
north of 17N between 73W-80W. Abundant dry air in the mid-to- 
upper levels of the atmosphere is expected to limit significant 
thunderstorms from developing. Scatterometer data depicts moderate
to fresh trades across the basin, with locally strong winds within
90 nm of the coast of Colombia. These winds will pulse every night
through the weekend. Seas are highest near the coast of Colombia,
up to 14 ft, and a large area of seas 8 ft and higher are 
occurring east of about 82W. Looking ahead into the weekend, 
winds and seas are expected to gradually lessen as the high 
pressure system to the north of the area weakens in place. 


Besides for the low pressure system discussed in the Special
Features section above, generally tranquil weather conditions are
occurring across the Atlantic. Strong surface high pressure 
centered near Bermuda and dry air in the mid and upper-levels are 
supporting fair weather and moderate to fresh winds across the 
subtropical west and central Atlantic waters today. The low 
pressure system over the eastern Atlantic is forecast to move 
eastward and weaken during the next 24 hours, but a cold front is 
expected to move into the same region bringing another round of 
strong winds. Little change is expected over the remainder of the
basin during the next day or two as the high pressure system 
remains stationary and weakens.

For additional information please visit 



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Page last modified: Saturday, 24-Feb-2018 05:09:55 UTC