Skip Navigation Links
NOAA NWS United States Department of Commerce

This page was last loaded at 9:43 am HST Jul 18, 2018 (1943 GMT Jul 18, 2018)

tab Central North Pacific (140W to 180) xml button tab tab Eastern North Pacific (east of 140W) xml button
Monitored by NHC

Eastern Pacific Graphical Tropical Weather Outlook
See the National Hurricane Center website for more details

ABPZ20 KNHC 181730

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Wed Jul 18 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A weak area of low pressure located about 1300 miles west-southwest
of the southern tip of the Baja California peninsula continues to
produce a small area of showers and thunderstorms.  Upper-level
winds are increasing over the system, and development is not
anticipated.  This system is expected to move westward during the
next few days.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

A tropical wave is producing a large area of disorganized showers
and thunderstorms about 1100 miles southwest of the southern tip of
the Baja California peninsula.  Development, if any, of this system
is expected to be slow to occur during the next several days while
it moves westward at low latitudes.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...20 percent.

An area of low pressure is forecast to form this weekend several
hundred miles southwest of Mexico.  Some slow development of this
system is possible by early next week while it moves westward or
west-northwestward well south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

Forecaster Cangialosi

Eastern Pacific Graphical Tropical Weather Outlook
Hurricane Preparedness

Hawaii Emergency Management Agency
City and County of Honolulu Department of Emergency Management
Kauai Emergency Management
Maui County Emergency Management
Hawaii County Civil Defense

Lat/Lon Distance Calculator
Calculate the distance between lat/lon points

Saffir-Simpson Scale

Tropical Storm - winds 39-73 mph (34-63 kt)
Category 1 - winds 74-95 mph (64-82 kt)
Category 2 - winds 96-110 mph (83-95 kt)
Category 3 - winds 111-129 mph (96-112 kt)
Category 4 - winds 130-156 mph (113-136 kt)
Category 5 - winds 157 mph and up (137+ kt)

Western Pacific (West of 180)

Monitored by the:
Joint Typhoon Warning Center
Japan Meteorological Agency

Central Pacific (140W to 180)

Monitored by the:
Central Pacific Hurricane Center, Honolulu HI

Eastern Pacific (East of 140W)

Monitored by the:
National Hurricane Center, Miami FL

Tropical cyclone WMO offices in Pacific
Click for AtlanticClick for Central Pacific