For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
1. A large area of disturbed weather, associated with the remnants of
eastern Pacific Tropical Storm Amanda, is located over the Yucatan
peninsula of Mexico. This disturbance is forecast to move
northwestward over the southeastern portion of the Bay of Campeche
later today or tonight where environmental conditions are expected
to be conducive to support development, and a new tropical
depression is likely to form within within the next day or so. The
system is then forecast to drift west or west-southwest over the
southern Bay of Campeche through the middle of the week. Interests
along the coast of the Bay of Campeche should monitor the progress
of this disturbance. Regardless of tropical cyclone formation,
heavy rainfall is likely to continue over portions of southern
Mexico, Guatemala, El Salvador, Belize, and western Honduras during
the next few days. For additional information on the rainfall
threat, see products from your national meteorological service.
Formation chance through 48 hours...high...80 percent.
Formation chance through 5 days...high...80 percent.
Today marks the first day of the Atlantic hurricane season, which
will run until November 30. Long-term averages for the number of
named storms, hurricanes, and major hurricanes are 12, 6, and 3,
The list of names for 2020 is as follows:
Name Pronunciation Name Pronunciation
Arthur AR-thur Laura LOOR-ruh
Bertha BUR-thuh Marco MAR-koe
Cristobal krees-TOH-bahl Nana NA-na
Dolly DAH-lee Omar OH-mar
Edouard ed-DWARD Paulette pawl-LET
Fay fay Rene re-NAY
Gonzalo gohn-SAH-loh Sally SAL-ee
Hanna HAN-uh Teddy TEHD-ee
Isaias ees-ah-EE-ahs Vicky VIH-kee
Josephine JOH-seh-feen Wilfred WILL-fred
Two tropical storms, Arthur and Bertha, already formed this year in
May. The next named storm that develops this season will be
This product, the Tropical Weather Outlook, briefly describes
significant areas of disturbed weather and their potential for
tropical cyclone formation during the next five days. The issuance
times of this product are 2 AM, 8 AM, 2 AM, and 8 PM EDT. After the
change to standard time in November, the issuance times are 1 AM,
7 AM, 1 PM, and 7 PM EST.
A Special Tropical Weather Outlook will be issued to provide
updates, as necessary, in between the regularly scheduled
issuances of the Tropical Weather Outlook. Special Tropical
Weather Outlooks will be issued under the same WMO and AWIPS
headers as the regular Tropical Weather Outlooks.
A standard package of products, consisting of the tropical cyclone
public advisory, the forecast/advisory, the cyclone discussion,
and a wind speed probability product, is issued every six hours
for all ongoing tropical cyclones. In addition, a special
advisory package may be issued at any time to advise of
significant unexpected changes or to modify watches or warnings.
The Tropical Cyclone Update is a brief statement to inform of
significant changes in a tropical cyclone or to post or cancel
watches or warnings. It is used in lieu of or to precede the
issuance of a special advisory package. Tropical Cyclone Updates,
which can be issued at any time, can be found under WMO header
WTNT61-65 KNHC, and under AWIPS header MIATCUAT1-5.
All National Hurricane Center text and graphical products are
available on the web at https://www.hurricanes.gov. You can also
interact with NHC on Facebook at https://www.facebook.com/NWSNHC.
Notifications are available via Twitter when select National
Hurricane Center products are issued. Information about our
Atlantic Twitter feed (@NHC_Atlantic) is available at