Tropical Weather Center

Current tropical weather information for the Atlantic Ocean with the latest information from the National Hurricane Center on all tropical depressions, tropical storms, and hurricanes.

National Hurricane Center - Atlantic Tropical Weather Outlook

Published September 23, 2021 7:49am EDT


000
ABNT20 KNHC 231149
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Thu Sep 23 2021

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical
Depression Eighteen, located about 1800 miles east-southeast of the
northern Leeward Islands.

The National Hurricane Center has issued the last advisory on
Post-Tropical Cyclone Rose, located more than 1300 miles
west-northwest of the Cabo Verde Islands.

A gale-force, non-tropical low pressure system, the remnants of
Odette, is located a little more than 600 miles west-northwest of
the westernmost Azores. While showers and thunderstorms remain
limited near the low, only a small increase in this activity could
result in the formation of a subtropical or tropical cyclone while
it moves generally southward over marginally warmer waters during
the next day or two. Strong upper-level winds are expected to
develop over the system by this weekend, which should then limit
further development. Additional information on this system,
including gale warnings, can be found in High Seas Forecasts issued
by the National Weather Service.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 5 days...medium...60 percent.

Another tropical wave is expected to move off the west coast of
Africa by the end of the weekend. Thereafter, environmental
conditions are forecast to be conducive for gradual development of
this system as it moves westward at 10 to 15 mph over the far east
Atlantic.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

&&

Public Advisories on Tropical Depression Eighteen are issued under
WMO header WTNT33 KNHC and under AWIPS header MIATCPAT3.
Forecast/Advisories on Tropical Depression Eighteen are issued
under WMO header WTNT23 KNHC and under AWIPS header MIATCMAT3.

High Seas Forecasts issued by the National Weather Service can be
found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and
online at ocean.weather.gov/shtml/NFDHSFAT1.php

$$
Forecaster Papin

NHC Atlantic 2-Day Graphical Outlook Image
NHC Atlantic 5-Day Graphical Outlook Image
Source: National Hurricane Center


Current Tropical Systems

Summary for Post-Tropical Cyclone Rose (AT2/AL172021)

Published September 23, 2021 8:03am EDT

ROSE IS NOW A REMNANT LOW
THIS IS THE LAST NHC ADVISORY

As of 9:00 AM GMT Thu Sep 23 the center of Rose was located near 25.2, -41.6 with movement NW at 10 mph. The minimum central pressure was 1010 mb with maximum sustained winds of about 35 mph.

Post-Tropical Cyclone Rose 5-Day Uncertainty Track Image
5-Day Uncertainty Track last updated Thu, 23 Sep 2021 08:33:59 GMT

Post-Tropical Cyclone Rose 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Thu, 23 Sep 2021 09:22:42 GMT
POST-TROPICAL CYCLONE Rose Models Plotted by SFWMD
Hurricane Models Plotted by SFWMD

Summary for Tropical Depression Eighteen (AT3/AL182021)

Published September 23, 2021 8:03am EDT

TROPICAL DEPRESSION EXPECTED TO STRENGTHEN AS IT MOVES ACROSS THE TROPICAL CENTRAL ATLANTIC

As of 5:00 AM AST Thu Sep 23 the center of Eighteen was located near 10.5, -36.4 with movement W at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

Tropical Depression Eighteen 5-Day Uncertainty Track Image
5-Day Uncertainty Track last updated Thu, 23 Sep 2021 08:37:31 GMT

Tropical Depression Eighteen 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Thu, 23 Sep 2021 09:28:54 GMT
Tropical Depression Eighteen Models Plotted by SFWMD
Hurricane Models Plotted by SFWMD

Source: National Hurricane Center Spaghetti Models: SFWMD

Spaghetti Models for Invests 90-99L

Invest 98L

Invest 98L Plotted by SFWMD

Graphical Analysis

Atlantic Surface Analysis

NOAA Tropical Atlantic Ocean Surface Analysis

Atlantic Wave Heights

Atlantic Wave Heights Gulf of Mexico  Wave Heights Caribbean Wave Heights

Caribbean Wave Heights (MyFoxHurricane.com)

Sea Surface Temperatures

Sea Surface Temperatures

SSMI/SSMIS-derived Total Precipitable Water - North Atlantic

SSMI/SSMIS-derived Total Precipitable Water - North Atlantic

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DISCLAIMER Weather data is provided by a third party. This data is provided for your general information only, and should not be treated as an official forecast. Please consult your local and national weather reports for you weather making decisions.