000
AXNT20 KNHC 091609
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1815 UTC Tue Jun 9 2026

Tropical Weather Discussion for North America, Central America
Gulf of America, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 31N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through 
1600 UTC.

...TROPICAL WAVES...

The axis of a tropical wave is near 33W, S of 15N, moving west at 
around 10 to 15 kt. Nearby convection is discussed in the MONSOON 
TROUGH/ITCZ section below.

The axis of a tropical wave is near 45W, S of 15N, moving westward 
at around 10 to 15 kt. Nearby convection is discussed in the MONSOON 
TROUGH/ITCZ section below. 

The axis of a tropical wave is near 56W, S of 16N, moving westward 
at around 10 to 15 kt. Scattered moderate convection is noted from 
06N to 11N between 53W and 57W.

The axis of a tropical wave is near 77W, south of 18N, moving 
westward at 5 to 10 kt. Scattered moderate to strong convection is 
noted from 09N to 19N between 74W and 80W. 

...MONSOON TROUGH/ITCZ...

The monsoon trough extends off the coast of Africa near 14N17W and 
extends SW to 10N20W. The ITCZ extends from 10N20W to 06N32W, then 
from 05.5N35.5W to 05N43W, then from 06N47W to 05.5N53W. Scattered 
moderate convection is noted from 06N to 08N between 20W and 31W, 
and from 02N to 09N between 35W and 50W.

...GULF OF AMERICA...

Surface ridging prevails across the northern basin. The pressure 
gradient between this ridge and lower pressure around TS Cristina 
and TD Boris is supporting moderate to fresh winds over the waters W 
of 90W as well as the SE Gulf. Gentle winds are noted over the NE 
Gulf. Seas are in the 4-5 ft range W of 90W, and 2-4 ft E of 90W. 

For the forecast, the pressure gradient will support gentle to 
moderate east to southeast winds over the eastern Gulf, and moderate 
to fresh winds in the western Gulf through much of this week. Slight 
to moderate seas will also prevail. The exception will be off the 
Yucatan Peninsula, where a diurnal trough will support moderate to 
fresh E winds pulsing to fresh to speeds during the evenings through 
Wed. A trough or weak low pressure center may emerge from the 
Yucatan Peninsula into the Bay of Campeche, on Thu through Fri night 
accompanied by numerous showers and thunderstorms along with fresh 
to strong winds and building seas.

...CARIBBEAN SEA...

Moderate to fresh trades and moderate seas prevail across the 
Caribbean waters. The interaction of a tropical wave and upper level 
troughing is supporting active convection over the western waters in 
the vicinity of the tropical wave. 

For the forecast, a gradual increase in winds up to fresh to strong 
speeds are expected later this afternoon and evening. These 
conditions will prevail through the forecast period. In addition, a 
trough or weak low pressure center may emerge from the Yucatan 
Peninsula into the Bay of Campeche on Thu through Fri night, 
maintaining a tight pressure gradient over the NW Caribbean and the 
Gulf of Honduras. Elsewhere, moderate to fresh winds and mostly 
moderate seas will prevail. 

...ATLANTIC OCEAN...

A surface trough extends from 27N71W to 24N77W. Another trough is 
analyzed from 31N60W to 26N67W. Scattered showers and isolated 
thunderstorms are near and E of second trough. High pressure 
dominates the remainder of the discussion waters N of 20N, anchored 
by a 1033 mb high centered SW of the Azores near 36N34W. Moderate or 
weaker winds, and slight to moderate seas, are N of 20N and W of 
50W. Fresh to strong winds are N of 20N and E of 25W, where seas are 
in the 7-9 ft range. Moderate to fresh winds, and moderate seas, 
prevail elsewhere. 

For the forecast west of 55W, the first trough will remain nearly 
stationary through midweek. The other trough will move across the N 
waters today, then move very slowly or stall on Wed, gradually 
dissipating by Thu. High pressure in the wake of the frontal remnant 
trough will shift eastward north of the area through the end of the 
week while weakening, with the associated ridge extending toward 
Florida and southeastern Georgia. The related pressure gradient will 
generally allow for gentle to moderate winds and slight to moderate 
seas. Increasing moisture resulting in unsettled weather conditions 
is likely to impact the far western section of the basin during the 
week. 

$$ 
AL