Tropical Weather Reports

in part our Tropical Weather Update today has been put together with data from Crown Weather Services, Windy and NOAA

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Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1805 UTC Thu May 2 2024

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 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis.

MONSOON TROUGH/ITCZ

The monsoon trough passes through the coastal plains of Guinea near 10N14W, curving to 06N16W and 03N30W. The ITCZ continues from 03N30W, to 01N35W, 02N43W, to 01N50W. Precipitation: disorganized widely scattered moderate to isolated strong is from 08N southward from 60W eastward.

GULF OF MEXICO

An upper level trough is generating cyclonic wind flow between 60W and 90W. Precipitation: isolated moderate to locally strong is in the remainder of the Atlantic Ocean that is from 60W westward. Persistent heavy rainfall for the rest of the week is possible in this part of the Atlantic Ocean. A surface trough is along 31N79W, to Lake Okeechobee in south Florida, to the Straits of Florida. Precipitation: isolated moderate is within 60 nm on either side of the trough from 28N northward.

A NW-to-SE oriented interior Mexico surface trough extends from the Texas Big Bend, to 24N100W. to the northern sections of the Isthmus of Tehuantepec of southern Mexico, western Guatemala.

Moderate to fresh E to SE winds span the entire area. Moderate to rough seas are from 22N to 24N between 90W and 92W. Slight seas are from 88W eastward, and from 26N northward between 88W and 90W. Moderate seas are in the rest of the Gulf of Mexico.

Surface ridging continues to dominate the Gulf waters. The pressure gradient between the ridge and lower pressures in Texas and Mexico will continue to tighten, and fresh to strong pulsing winds in the western half of the Gulf will prevail through Fri. Moderate or weaker winds will prevail in the eastern half of the basin. Winds will pulse to strong speeds nightly near and to the NW of the Yucatan Peninsula due to local effects induced by a thermal trough.

CARIBBEAN SEA

A flat and weak surface pressure gradient is in the Caribbean Sea. A 1020 mb Atlantic Ocean high pressure center is near 32N67W.

An upper level trough is generating cyclonic wind flow between 60W and 90W. A surface trough is along 10N76W 15N80W 20N81W. Precipitation: isolated moderate to locally strong is from 16N to 20N between 60W and 80W. Persistent heavy rainfall for the rest of the week is possible in this part of the Caribbean Sea. Flash flooding in inland low lying areas is possible also.

Mostly fresh to some moderate SE winds are from 70W eastward, and in the Windward Passage. Moderate or slower winds are in the central one-third of the area. Moderate easterly winds, and slight seas, are from 80W westward. Moderate seas are from 80W eastward.

The 24-hour rainfall totals in inches, for the period that ended at 02/1200 UTC, are: 1.40 in Montego Bay in Jamaica; 0.19 in San Juan in Puerto Rico; and 0.04 in Guadeloupe; and 0.03 in Freeport in the Bahamas. This information is from the Pan American Temperature and Precipitation Tables/MIATPTPAN.

Surface ridging N of the area supports moderate to fresh easterly trade winds over the central and eastern Caribbean. The ridge is expected to slide eastward and weaken today, reducing the areal coverage and limiting these winds to the SE Caribbean by this evening. Scattered showers and thunderstorms currently affecting eastern Cuba, Hispaniola, and adjacent passages will expand in coverage today supported by a surface trough extending along 79W. The pressure gradient between this feature and the ridge will also support moderate to fresh NE winds in the lee Cuba, NW Caribbean and the Windward Passage tonight into Sat night. Gentle to moderate trades are expected basin-wide the remainder forecast period, except for fresh winds in the south- central Caribbean.

ATLANTIC OCEAN

An upper level trough is generating cyclonic wind flow between 60W and 90W. Precipitation: scattered moderate to widely scattered strong is from 20N northward between 60W and 70W. Isolated moderate to locally strong is in the remainder of the area that is from 60W westward. Persistent heavy rainfall for the rest of the week is possible in this part of the Atlantic Ocean. The 24-hour rainfall totals in inches, for the period that ended at 02/1200 UTC, are: 0.03 in Freeport in the Bahamas. This information is from the Pan American Temperature and Precipitation Tables/MIATPTPAN.

A surface trough is along 31N79W, to Lake Okeechobee in south Florida, to the Straits of Florida. Precipitation: isolated moderate is within 60 nm on either side of the trough from 28N northward.

A 1020 mb Atlantic Ocean high pressure center is near 32N67W. Broad surface anticyclonic wind flow is to the west and northwest of the 31N37W 27N46W 25N56W cold front, until 75W. A NE-to-SW oriented surface trough is about 180 nm to the southeast of the cold front, between 40W and 54W. Precipitation: isolated moderate is in the remainder of the Atlantic Ocean from 15N northward between 30W and 60W. Moderate to rough seas are to the north of the cold front.

Moderate to rough seas are from 10N to 16N between 50W and 60W. Moderate to rough seas, and fresh to strong NE winds, are from 27N northward from the Canary Islands eastward. Moderate seas are in the rest of the Atlantic Ocean. An exception is for slight seas from 26N northward from 70W westward, away from the Bahamas. Fresh to moderate NE winds are to the south of the line: 27N73W 25N62W 22N49W 22N36W 27N22W. Fresh to moderate S and SW winds are from 24N northward between 30W and 40W. Moderate or slower winds are in the remainder of the Atlantic Ocean.

A surface ridge extends across the SW Atlantic and supports moderate to fresh easterly winds S of 25N, including the approaches to the Windward Passage. The ridge is expected to slide eastward and weaken today, while a surface trough develops just N of Hispaniola. The pressure gradient between the ridge and the trough will support pulsing strong east to southeast east of the trough, and moderate to fresh northeast to east winds west of the trough. The trough will also amplify the area of showers and thunderstorms currently affecting the southern Bahamas and the Great Bahama Bank. The trough is forecast to become a weak low, which will track northeastward Fri through Sat, and open back into a trough while exiting the area on Sun.

Our Tropical Weather reports - for the most part are put together only during tropical weather season. Our reports are based on a number of online sources and are based on our past experience dealing with tropical weather. We also occasionally include non-tropical weather that would affect the area / footprint that we cover. For additional information check out Crown Weather Services