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NOAA > NWS > CPHC

This page was last loaded at 7:27 pm HST Aug 3, 2015 (527 GMT Aug 04, 2015)

Central Pacific (140W to 180) xml button

Active Systems
xml button  Tropical Storm Guillermo Advisory Number 021
Issued at 500 PM HST MON AUG 03 2015
SUMMARY OF 500 PM HST...0300 UTC...INFORMATION
----------------------------------------------
Location: 18.1N 147.4W
ABOUT 515 MI...830 KM E OF HILO HAWAII
ABOUT 715 MI...1155 KM ESE OF HONOLULU HAWAII
Maximum sustained winds: 65 MPH...100 KM/H
Present movement: NW or 310 degrees AT 10 MPH...17 KM/H
Minimum central pressure: 991 MB...29.27 INCHES

Tropical Outlook Sea Surface Temperatures CPAC Satellite EPAC Satellite Widgets Satellite Message Forecast Discussion

xml button

Issued: Aug 03, 2015 7:00 PM HST


Based on data through 7:00 pm Aug 03 2015 HST


As of 600 pm HST, tropical storm Guillermo was about 520 miles east- southeast of Hilo. Over the past several hours Guillermo has been moving toward the northwest near 10 mph. Intense convection has recently ignited near and north of the system center.

Low clouds blanket the Big Island, Maui, Lanai, and the eastern two thirds of Molokai this early evening. Windward sides of these isles are seeing light showers from time to time. Mauka and windward areas of Oahu and Kauai are also experiencing occasional low ceilings. Skies are clear to partly cloudy elsewhere. Low cloud movement is from the northeast to east-northeast at 15 to 20 mph across the aloha state.

Broken to overcast low cloudiness is widespread in the coastal waters surrounding Maui county and the Big Island. Conditions are otherwise clear to scattered in the areas around Oahu and Kauai, including the kaiwi and Kauai channels.

Weak lows are far southwest of the isles and continue to move away from the central north Pacific, toward the west. The one closest to the date line is generating showers and thunderstorms from 11°N to 14°N west of 175°W. The other feature, the remnant circulation that had been tropical depression Eight-E, is currently producing no deep convection in the area about 800 miles southwest of Honolulu. Closer to the islands, a weak low or trough is around 235 miles northeast of Honolulu and has been trekking west at 10 to 15 mph. Scattered showers and isolated tcu's have been occurring mainly from 24°N to 28°N between 153°W and 157.5°W.

And looking farther south, convection along the intertropical convergence zone has been firing south of 07°N between 156°W and 169°W, and south of 10°N east of 147°W.

Hawaii Infrared Satellite image for 0430 UTC


KINEL

Western Pacific (West of 180)

Monitored by the:
Joint Typhoon Warning Center
Japan Meteorological Agency

Eastern Pacific (East of 140W) xml button

Eastern Pacific Graphical Tropical Weather Outlook


TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
1100 PM PDT MON AUG 3 2015

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

Shower and thunderstorm activity associated with a low pressure
system located about 1100 miles southwest of the southern tip of
the Baja California peninsula continues to show signs of
organization. Environmental conditions are expected to be conducive
for continued gradual development, and this system is likely to
become a tropical depression later this week while it moves
west-northwestward at 10 to 15 mph.
* Formation chance through 48 hours...medium...50 percent
* Formation chance through 5 days...high...80 percent


Eastern Pacific Graphical Tropical Weather Outlook

Monitored by the National Hurricane Center (NHC)

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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 111-130 mph (96-113 kt)
  • Category 4 - winds 131-155 mph (114-135 kt)
  • Category 5 - winds 156 mph and up (135+ kt)
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