Short descriptions of the tropical advisories, warnings, track graphics
and satellite images we link to in the Eastern Pacific Tropical Region.

Eastern Pacific Region Data Descriptions

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Tropical Cyclones Worldwide - 24/365

 Tropical cyclones form over Oceans and are known as Tropical 
Depressions, Tropical Storms, Hurricanes and Typhoons.

TROPICAL
CYCLONES
UPDATED
DAILY
See if any Tropical Cyclones
in the Atlantic, Eastern Pacific,
Central Pacific, Western Pacific, or
 Indian Ocean are of concern to you.
 


1. The primary data source for the Eastern Pacific Region is the National Hurricane
    Center (NHC) Tropical Prediction Center (TPC).

2. The North Eastern Pacific tropical season is from May 15th through November 30th
    each year, unless an unusual tropical event occurs outside of these dates. The South
    Eastern Pacific occasionally becomes active outside of these dates.

3. Tropical systems moving through the Eastern Pacific may, and occasionally do,
    progress into the Central Pacific Tropical Region.

4. Shown below are short descriptions of the Eastern Pacific tropical advisories,
    warnings, track graphics, and satellite images we link to.


24 HOURS A DAY...YEARLONG   TROPICAL STORM OR SEASON ONLY  
  EPAC  
DAILY
OUTLOOK
Eastern Pacific EPAC Outlook is a short, easy to read text which briefly
describes the overall tropical situation in the Atlantic Region. It is issued
daily by the NHC/TPC only during the Atlantic hurricane season unless
an unusual storm occurs outside of these dates.
EPAC
DAILY
DISCUSSION
Eastern Pacific EPAC Daily Discussion is a detailed analysis of the weather
affecting tropical conditions in the Atlantic region. It is a very detailed
discussion of the significant areas of disturbed weather and their potential
for additional development. It is issued several times daily.
TROPICAL
CYCLONE
ADVISORIES
WARNINGS
Every few hours, four warnings and/or advisories are issued for each storm:
(1) Public Advisory...Short and easy to read. It is basic public information.
(2) Forecast/Advisory...Detailed storm information including winds and track.
(3) Discussion...Detailed discussion of storm conditions including predictions.
As a storm approaches landfall, additional advisories are issued more often.
STORM
TRACK
  GRAPHIC  
Shortly after each new warning or advisory, the NHC/TPC issues graphics.
(1) Current position and track..."Track" meaning where the storm is now,
and the forcasted locations out in time for five or more dates and times.
Several other NHC/TPC storm graphics are also issued, and are displayed.
  SATELLITE 
IMAGES
Satellites provide constant infrared (heat) images and water-vapor images
of the full Atlantic region. During daylight hours, they also provide visible
images. These satellite images are available any time of the day...yearound.
  AIRCRAFT  
RECON
FLIGHTS
Reconnaissance flights are made by Air Force "Hurricane Hunters" and by
the Hurricane Research Division into Atlantic and Eastern Pacific storms
and/or suspect areas. There may also be planned flights, outside of the
hurricane season, under the National Winter Storms Operations Plan.

RETURN TO THE EASTERN PACIFIC TROPICAL REGION

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